CD RECEIVER DEH-P4950MParchive.espec.ws/files/PIONEER DEH-P4950MP.pdf · PIONEER EUROPE NV Haven...

PIONEER CORPORATION 4-1, Meguro 1-chome,PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, LonPIONEER EUROPE NV Haven 1087, Keetberglaan 1, 912PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253

PIONEER CORPORATION 2006

DEH-P4950MP/XU/ES

Meguro-ku, Tokyo 153-8654, Japang Beach, CA 90801-1760, U.S.A.

0 Melsele, BelgiumAlexandra Road, #04-01, Singapore 159936

ORDER NO.

CRT3835

CD RECEIVER

DEH-P4950MP/XU/ES

This service manual should be used together with the following manual(s):

Model No. Order No. Mech.Module Remarks

CX-3195 CRT3815 S10.5COMP2 CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

For details, refer to "Important Check Points for Good Servicing".

K-ZZA. NOV. 2006 Printed in Japan

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SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repaircomplex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do soand refer the repair to a qualified service technician.

- Service Precaution1. You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.2. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on mode may damage the ICs inside the unit.3. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder) by referring to "the DISASSEMBLY".4. After replacing the pickup unit, be sure to check the grating.5. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic induction.

- Safety Precautions for those who Service this Unit.

• When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.

Caution:

1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept. 2. During repair or tests, do not view laser beam for 10 seconds or longer.

CAUTIONDanger of explosion if battery is incorrectly replaced.Replaced only with the same or equivalent type recommended by the manufacture.Discord used batteries according to the manufacture's instructions.

DEH-P4950MP/XU/ES21 2 3 4

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[Important Check Points for Good Servicing]In this manual, procedures that must be performed during repairs are marked with the below symbol.Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris.Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs.In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages.If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary.

0 Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely.

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.Adjustments should be performed in accordance with the procedures/instructions described in this manual.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.

5. Shipping mode and Shipping screws

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

DEH-P4950MP/XU/ES 35 6 7 8

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CONTENTS SAFETY INFORMATION..................................................................................................................................... 21. SPECIFICATIONS ............................................................................................................................................ 52. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6

2.1 PACKING ................................................................................................................................................... 62.2 EXTERIOR................................................................................................................................................. 82.3 CD MECHANISM MODULE..................................................................................................................... 10

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.......................................................................................... 123.1 BLOCK DIAGRAM ................................................................................................................................... 123.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).............................................................................. 143.3 KEYBOARD UNIT.................................................................................................................................... 203.4 CD MECHANISM MODULE(GUIDE PAGE) ............................................................................................ 22

4. PCB CONNECTION DIAGRAM ..................................................................................................................... 304.1 TUNER AMP UNIT................................................................................................................................... 304.2 KEYBOARD UNIT.................................................................................................................................... 344.3 CD CORE UNIT(S10.5COMP2)............................................................................................................... 36

5. ELECTRICAL PARTS LIST ............................................................................................................................ 386. ADJUSTMENT ............................................................................................................................................... 43

6.1 CD ADJUSTMENT................................................................................................................................... 436.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT .................................................... 456.3 ERROR MODE ........................................................................................................................................ 476.4 SYSTEM MICROCOMPUTER TEST PROGRAM ................................................................................... 48

7. GENERAL INFORMATION............................................................................................................................. 497.1 DIAGNOSIS ............................................................................................................................................. 497.1.1 DISASSEMBLY ..................................................................................................................................... 497.1.2 CONNECTOR FUNCTION DESCRIPTION.......................................................................................... 527.2 PARTS...................................................................................................................................................... 537.2.1 IC .......................................................................................................................................................... 537.2.2 DISPLAY ............................................................................................................................................... 627.3 OPERATIONAL FLOW CHART ............................................................................................................... 63

8. OPERATIONS ................................................................................................................................................ 64


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1. SPECIFICATIONS

DEH-P4950MP/XU/ES 55 6 7 8

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2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

NOTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. • The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. • Screw adjacent to mark on the product are used for disassembly. • For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.)

"

DEHP4950MPXUESpacking

20

16

2

19

18

17

136

15 14

14107

812

11

4

3

5 1


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PACKING SECTION PARTS LIST

Owner's Manual,Installation Manual

Mark No. Description Part No.

1 Cord Assy CDP1017

2 Polyethylene Bag CEG-162

* 3 Battery CEX1065

4 Case Assy CXB3520

5 Remote Control Assy CXC5719

6 Accessory Assy CEA6708

7 Screw Assy CEA3849

8 Screw CBA1650

9 •••••

* 10 Polyethylene Bag CEG-127

11 Screw CRZ50P090FTC

12 Screw TRZ50P080FTC

13 Polyethylene Bag CEG1160

14 Handle CND3707

15 Bush CNV3930

16 Carton YHG5141

17 Contain Box YHL5141

18 Protector YHP5008

19 Protector YHP5009

20-1 Caution Card CRP1310

20-2 Owner's Manual YRD5114

20-3 Owner's Manual YRD5115

20-4 Installation Manual YRD5116


Part No. Language

YRD5114 English, Spanish, Portuguese(B)

YRD5115 Traditional Chinese, Arabic

YRD5116 English, Spanish, Portuguese(B), Traditional Chinese, Arabic

DEH-P4950MP/XU/ES 75 6 7 8

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1 2 3 4
2.2 EXTERIOR

B

A

C

C

B

A

B

A

67

46

54 5655

68 5245

4762

6166

6563

57

60

58

4859

49

53

53 73

64

44

4315 42

42

4232

35

3837 39

34

41

40

33

36

31

44

44

44

74

127

5

2

26

27

17

20

25

21

22

28

71

72

70

70

23

24

11

10

8

9

13

44

4

6

69

18

3

1

111

1818

16

14

29 30

19

17

51

51

50

DEH-P4950MP/XU/ES


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EXTERIOR SECTION PARTS LIST


1 Screw BSZ26P060FTC




5 Earth Plate CNC8915

6 Holder CND3598

7 Cushion CNM8890

8 Remote Control Assy CXC5719

9 Cover CNS7068

10 CD Mechanism Module(S10.5) CXK5763

11 Cable YDE5025

12 Case YNB5014

13 Insulator YNM5062

14 Heat Sink YNR5031

15 Panel YNS5194

16 Tuner Amp Unit YWM5153

17 Screw BPZ26P080FTC


> 19 Fuse(10 A) CEK1208

20 Pin Jack(CN351) XKB7001

21 Plug(CN901) CKM1376

22 Connector(CN101) CKS3408



25 Antenna Jack(CN401) CKX1056

26 FM/AM Tuner Unit CWE1952

27 Holder CND1054

28 Holder XNC7030

29 Jack(CN621) YKS5017

30 Holder YNC5039

31 Panel Unit YXA5154

32 Button(DETACH) CAC4836

33 Spring CBH1835

34 Spring CBH2208

35 Spring CBH2367

36 Bracket CNC6791

37 Holder CNC8042

38 Cover CNM6276

39 Arm CNV4692

40 Arm CNV4728

41 Arm CNV5576

42 Screw IMS20P030FTB

43 Detachable Assy YXA5221

44 Screw BPZ20P080FTB

45 Spring CBH2210

46 Knob(SOURCE, VOLUME) YAA5008

47 Button(1-6) YAC5187

48 Button(EQ, BAND/ESC) YAC5075

49 Button(ATT, DISP/SCRL) YAC5076

50 Button(CLK/EJECT) YAC5077

51 Button(UP/DOWN) YAC5079

52 Button(EJECT) YAC5188

53 Button(R/L) YAC5102

54 Spring YBH5003

55 Ring YNS5123

56 Ring YNS5124

57 Cover YNS5185

58 Lighting Conductor YNV5036



61 LCD(LCD1801) YAW5083

62 Holder YNC5016

63 Sheet YNM5026

64 Cushion YNM5027

65 Connector YNV5040


67 Button(FUNC/AUDIO) YXA5229

68 Grille Unit YXA5228

69 Chassis Unit YXA5233

70 Transistor (Q702,Q911) 2SD2396

71 IC(IC921) NJM2388F84

72 IC(IC301) PAL007C

73 IC(IC1802) TSOP4840SB1

74 Cord Assy CDP1017


DEH-P4950MP/XU/ES 95 6 7 8

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2.3 CD MECHANISM MODULE

DEH-P4950MP/XU/ES101 2 3 4

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CD MECHANISM MODULE SECTION PARTS LIST


1 CD Core Unit(S10.5COMP2) CWX3514



4 Screw BMZ20P025FTC


6 Screw(M2 x 3) CBA1511

7 Screw(M2 x 4) CBA1835

8 Washer CBF1038

9 •••••

10 Spring CBH2609

11 Spring CBH2612

12 Spring CBH2614

13 Spring CBH2616

14 Spring CBH2617

15 Spring CBH2620

16 Spring CBH2855

17 Spring CBH2937

18 Spring CBH2735

19 Spring CBH2854

20 Spring CBH2642

21 Spring CBH2856

22 Spring CBH2857

23 Spring CBH2860

24 Spring CBH2861

25 Spring CBL1686

26 Arm CND1909

27 Frame CND2582

28 Bracket CND2583

29 Arm CND2584

30 Lever CND2585

31 Arm CND2586

32 Bracket CND2587

33 Arm CND2588

34 Lever CND2589

35 Holder CNV7201

36 Gear CNV7207

37 Gear CNV7208

38 Gear CNV7209

39 Gear CNV7210

40 Gear CNV7211

41 Gear CNV7212

42 Rack CNV7214

43 Arm CNV7216

44 Roller CNV8189

45 Gear CNV7219

46 Guide CNV7361

47 Gear CNV7595

48 Guide CNV8448

49 Arm CNV7805

50 Rack CNV8342

51 Roller CNV8343

52 Holder CNV8344

53 Arm CNV8345

54 Guide CNV8347

55 Arm CNV8348

56 Arm CNV8349

57 Arm CNV8350

58 Clamper CNV8365

59 Arm CNV8386

60 Guide CNV8396

61 Arm CNV8413

62 Collar CNV8447

63 Motor Unit(M2) CXC4026

64 Arm Unit CXC4027

65 Chassis Unit CXC4028

66 Gear Unit CXC4029

67 Frame Unit CXC4031

68 Motor Unit(M1) CXC7134

69 Screw Unit CXC6359

70 Screw JFZ20P020FTC

71 Screw JGZ17P022FTC

72 Washer YE20FTC

73 Pickup Unit(P10.5)(Service) CXX1942

74 Screw IMS26P030FTC


DEH-P4950MP/XU/ES 115 6 7 8

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IN2_L

IN4−_

IN4+_

IN1_L

2

5

4

ELECSOU

1

TEM CON

IC601(2PEG29

T

T

C

T

C

S

IN3_L3

1 2 3 4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM3.1 BLOCK DIAGRAM

PICKUP UNIT(P10.5)(SERVICE)

CD CORE UNIT(S10.5COMP2)C

CN701

Q101

M

LASERDIODE

MONITORDIODE

S903DSCSNS

SPINDLEMOTOR

MCARRIAGEMOTOR

LOAD/

LD-

MD

15

5

HOLOGRAM UNIT

IC301BA5839FP IC201

PE5547A

RF-AMP, CD DECODER, MP3/WMA DECODER,

DIGITAL SERVO / DATA PROCESSOR

CDDRIVER

1

13LOUT

9

CN101

16 SOP15 SOM18 LCOP17 LCOM

21CLCONT

55LOUT

9CONT

TD,FD

AC,BD,F,E

SD,MD

S901HOME

S90412EJ

S9058EJ

LD+ 14

141 LD

142 PD

12EJ

CONT

CLCONT

HOME

8

9

43

41

VDD

VDD

Q102

39/PUEN

VDD

15

5

FOCUS ACT.TRACKING ACT.

FOPTOP

21 TOP

FOP

11 FOP14 TOP

21

14

8EJ7

DSCSNS6

VCC

/RESET 8

BRST,BRXEN,BSRQ

VDVD

2

BDATA,BSCK

16 /RESET

88VREFREFO 133 REFOUT

33FOM FOM

12 FOM

44TOM TOM

13 TOM

22LOEJ LOEJ5

52

50

X201

XTAL

/XTAL16.93MHz

VDSENS11

VD

TUNL

SYS

CN4011

2

CN701

CN101

TUNER AMP UNIT

LOUT

A

CN621

VDD_3.3V

VCC8

VDD5

ANTENNA

TU

NP

DI

SL

TU

NP

CK

TU

NP

DO

13

9

RX

RX2

TX

ASENBO

IPPW

29

30

40

27

52

IP_B

US

Q101

Q102

B.UP

IN1+

B14

7

IN1−11

61

5 IC101HA12241FP

2

1

8

5

8

B.UP

5

Q702VD

1

2Q701

BRST,BRXEN,BSRQ,BDATA,BSCK

8RESET

CDRST21

VCCONT22

IC702NJM2885DL1-33 VDD5

CD 3V REGULATOR

13

4

5IC751

NJM2794V

AUX-GND

AUX-L 14

10,121

CE

2

CE

1

BUSL-

BUSL+

AUX-L

CDL

FM/AM TUNER UNIT

FMRF

ANT adjRF adj

FM ANT

T51 CF52

RF

GN

D

OS

CG

ND

DG

ND

AU

DIO

GN

D

NC

VC

C

VD

D_3

.3

3.3V 2.5VIC4

3.3V 2.5V

←

IC22.5V

NC

CE

2

RO

M_V

DD DI

SL

CK

CE

1

NC

DO

NC

NC

NC

NC

7 6 13 5 10 9 8 11 14 18 19 20 21

1

3

2 12 15 22 16 4 17

IC13.3V

AM ANT FMRFATT

LPFOSC

IC3 EEPROM5.0V

IC55V 3.3V←

ATT

MIXER, IF AMP DET, FM MPX,

23Lch

DEH-P4950MP/XU/ES121 2 3 4

C

D

F

A

B

E

TUNL

29

30

40

27

52

B.UP

21

22

BUSL-

BUSL+

AUX-L

CDL

5 6 7 8

12Pre/SW_L

IN2_L

IN4−_L

IN4+_L

IN1_L

2

5

4 IC151PML015B

ELECTRONIC VOLUME/SOURCE SELECTOR

1

6Front_L

12

1 2VDD5

B.UP

20

19

53MUTE

21

23

3

5

FL−

Vcc Vcc

FL+RL−

RL+

FL−

FL+RL−

RL+

BREM22

POWER AMP

IC601(1/2)PEG298A

SYSTEM CONTROLLER

IC601(2/2)PEG298A

IC961S-80835CNMC-B8U

IC301PAL007C

VDD5

Q911

Q931

MUTE

CN804Q851

VC

K, V

DT

, VS

T

Q451

Q453

SYSTEM CONTROLLER

VDD5V REGULATOR

BACKUP SENSE

ACC SENSE

3

9

11

12

10

1

2

CN901

TUNPCE1

TPDI

TPDO

66

65

68

86

TPCK67

TUNPDO

TUNPDI

CE1

TUNPCK

Q912

DALMON47

3

5

6

7

4

8

10

9

SSENS92

ROT13

ROT04

DPDT35

KYDT36

SWL

CN351

4

6

FLIN14

/BSENS

/ASENS

7Rear_L RLIN

12

Xout

Xin

13

X601

15

Q351

RCFL

Q353

RESET

4

SYSPW

SY

SP

W

STBY

VDD_3.3V

TUN 3V REGULATOR

MUTE

IC921NJM2388F84 B.UP

SYS 8V REGULATOR

IC401NJM2885DL1-33

CE2 TUNPCE297SL SL

B.UP

B.UP

20 6

48SYSPW

25

1213

4

B.REM

/RE

SE

T

/BSENS

/ASENS

VCC8

6

SSENS

VDD5Q852

B.UP

Q841

SWVDD7

18

ILMPW1

/DSENS

Q842

SWVDD

DSENS

ILMB+

ROT1

ROT0

DPDT

KYDT

SRC

DSENS

ILM

ROT1

ROT0

DPDT

KYDT IC 1801PD6340A

LCD DRIVER/KEY CONTROLLER

KEY DATA

LCD1801

8

CN1801

KEYBOARD UNIT

5

4

18

20

DPDT

KYDT

B

3

2

D1804-D1822

SWVDD

SWVDD

7

XO

XI

22

X18015MHz23

KEY MATRIX

CLOCKS1814

DISPS1815

AUDIO

S1813

EJECTS1816

RIGHTS1806

3S1808

LEFTS1807

DOWNS1810

EQ

S1812

5S1809

S1817

UP

S1811

S1802

1S1803

4S1804

1056

VLCDVDD

6

1

17

13 IC1802TSOP4840SB1

REM.CON.

REM

FUNCS1801

BANDS1805

2

ATT 6S1818

VOLUME/SOURCE

S1827

1

2

4

RX

RX2

TX

ASENBO

IPPW

CDRST

VCCONT

IN3_L3

Q352

2RCRL

B.UP

ACC

KD

T0-

3,K

ST

0-4

FL−

FL+RL−RL+

3

9

11

12

10

1

6

2

BACK UP

GND

ACC

B.REM

DEH-P4950MP/XU/ES 135 6 7 8

C

D

F

A

B

E

TUN

1 2 3 4

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

A-a

A

A-aA-a A-b A-b

A-aA-a A-b A-b

A-b A-b A-a A-a

Large sizeSCH diagram

Guide page

Detailed page

Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".

TU

NP

CK

TU

NP

DI

15M

Hz

CS

S16

53

C CN701

FM

/AM

TU

NE

R U

NIT

BCN1801

CD(-20 dB) : -19.4 dB

FM(10%) : -33.5 dBAM(15%) : -30.0 dB

AUX IN(-20 dB) : -17.8 dB

IP-BUS(-20 dB) : -17.8 dB

DEH-P4950MP/XU/ES141 2 3 4

C

D

F

A

B

E

A-a A-b

A-a A-b

A-b A-a

TU

NP

DI

CS

S16

53

5 6 7 8

A-b

A

600µH

3300

/16

TUNPDO

SUB WOOFERR CH

SUB WOOFERL CH

FRONTL CH

FRONTR CH

REARL CH

REARR CH

A TUNER AMP UNIT

For resistors and capacitors in the circuit diagrams, their resistance values orcapacitance values are expressed in codes:

Ex. *Resistors Code Practical value 123 12k ohms 103 10k ohms

*Capacitors Code Practical value 103 0.01uF 101/10 100uF/10V

The > mark found on some component parts indicatesthe importance of the safety factor of the part.Therefore, when replacing, be sure to use parts ofidentical designation.

Symbol indicates a resistor.No differentiation is made between chip resistors anddiscrete resistors.

NOTE :

Symbol indicates a capacitor.No differentiation is made between chip capacitors anddiscrete capacitors.

CEK120810A

>

3A

>

INPUT FM : -37.1 dB AM : -33.6 dB CD : -22.4 dB IP-BUS : -20.8 dB AUX IN : -20.8 dB

OUTPUT FM : -16.0 dB AM : -12.5 dB CD : -8.3 dB IP-BUS : -8.7 dB AUX IN : -8.7 dB

FM : 9.98 dBAM : 13.48 dBCD : 17.7 dBIP-BUS : 17.3 dBAUX IN : 17.3 dB

DEH-P4950MP/XU/ES 155 6 7 8

C

D

F

A

B

E

TU

NP

DO

1 2 3 4

A-a

A-b

A-b 1 2

600µ

H

3300/16

SU

B W

OO

FE

RR

CH

SU

B W

OO

FE

RL

CH

FR

ON

TL

CH

FR

ON

TR

CH

RE

AR

L C

H

RE

AR

R C

H

AT

UN

ER

AM

P U

NIT

CEK

1208

10A >

3A

>

INP

UT

FM

: -3

7.1

dB

A

M :

-33.

6 dB

CD

: -2

2.4

dB

IP

-BU

S :

-20.

8 dB

AU

X IN

: -2

0.8

dB

OU

TP

UT

FM

: -1

6.0

dB

AM

: -1

2.5

dB

CD

: -8

.3 d

B

IP-B

US

: -8

.7 d

B

AU

X IN

: -8

.7 d

B

DEH-P4950MP/XU/ES161 2 3 4

C

D

F

A

B

E

>

5 6 7 8

A-a

A-b

A-b3 4 5 6

TU

NP

DO

For

res

isto

rs a

nd c

apac

itors

in th

e ci

rcui

t dia

gram

s, th

eir

resi

stan

ce v

alue

s or

capa

cita

nce

valu

es a

re e

xpre

ssed

in c

odes

:

Ex.

*R

esis

tors

C

ode

Pra

ctic

al v

alue

1

23

12k

ohm

s

103

1

0k o

hms

*C

apac

itors

C

ode

P

ract

ical

val

ue

103

0.

01uF

1

01/1

0

100u

F/1

0V

The

> m

ark

foun

d on

som

e co

mpo

nent

par

ts in

dica

tes

the

impo

rtan

ce o

f the

saf

ety

fact

or o

f the

par

t.T

here

fore

, whe

n re

plac

ing,

be

sure

to u

se p

arts

of

iden

tical

des

igna

tion.

Sym

bol i

ndic

ates

a r

esis

tor.

No

diffe

rent

iatio

n is

mad

e b

etw

een

chip

res

isto

rs a

nddi

scre

te r

esis

tors

.

NO

TE

: Sym

bol i

ndic

ates

a c

apac

itor.

No

diffe

rent

iatio

n is

mad

e b

etw

een

chip

cap

acito

rs a

nddi

scre

te c

apac

itors

.

FM

: 9.

98 d

BA

M :

13.4

8 dB

CD

: 17

.7 d

BIP

-BU

S :

17.3

dB

AU

X IN

: 17

.3 d

B

DEH-P4950MP/XU/ES 175 6 7 8

C

D

F

A

B

E

TU

NP

DO

1 2 3 4

A-b

A-a

A-a

A-b 1 2

15MHzCSS1653

CC

N70

1FM/AM TUNER UNIT

CD

(-20

dB

) : -

19.4

dB

FM

(10%

) : -

33.5

dB

AM

(15%

) : -

30.0

dB

AU

X IN

(-20

dB

) : -

17.8

dB

DEH-P4950MP/XU/ES181 2 3 4

C

D

F

A

B

E

AU

X IN

(-20

dB

) : -

17.8

dB

5 6 7 8

A-a

A-b

A-b

A-a

3 4 5 6

TU

NP

DO

TUNPCK

TUNPDI

BC

N18

01

IP-B

US

(-20

dB

) : -

17.8

dB

DEH-P4950MP/XU/ES 195 6 7 8

C

D

F

A

B

E
1 2 3 4
3.3 KEYBOARD UNIT

B

LCD DRIVER/KEY CONTROLLER

DEH-P4950MP/XU/ES201 2 3 4

C

D

F

A

B

E

5 6 7 8

B

CLOCK

ACN804

B KEYBOARD UNIT

DEH-P4950MP/XU/ES 215 6 7 8

C

D

F

A

B

E
1 2 3 4
3.4 CD MECHANISM MODULE(GUIDE PAGE)

C-a

C

M1 CXC7134SPINDLE MOTOR

M2 CXC4026LOADING/CARRIAGE MOTOR

PICKUP UNIT(P10.5)(SERVICE)

SWITCHES:CD CORE UNIT(S10.5COMP2) S901:HOME SWITCH..........ON-OFF S903:DSCSNS SWITCH......ON-OFF S904:12EJ SWITCH.............ON-OFF S905:8EJ SWITCH...............ON-OFF

The underlined indicates the switch position.

CD DRIVER

F

F

T

T

F

F

T

TF

F

T

T

F

F

T

T

F

T

S

C

C

S

S

C

3

2

1

9

0 48

7

$

5

@

#

%

DEH-P4950MP/XU/ES221 2 3 4

C

D

F

A

B

E

5 6 7 8

C-b

C

C CD CORE UNIT(S10.5COMP2)

ACN701

FSIGNAL LINE

FOCUS SERVO LINE

TRACKING SERVO LINE

CARRIAGE SERVO LINE

SPINDLE SERVO LINE

T

C

S

!

6

&^

DEH-P4950MP/XU/ES 235 6 7 8

C

D

F

A

B

E

1 2 3 4

C-a

C-b

C-b 1

CC

D C

OR

E U

NIT

(S10

.5C

OM

P2)

FS

IGN

AL

LIN

E

FO

CU

S S

ER

VO

LIN

E

TR

AC

KIN

G S

ER

VO

LIN

E

CA

RR

IAG

E S

ER

VO

LIN

E

SP

IND

LE S

ER

VO

LIN

E

T C S

!

DEH-P4950MP/XU/ES241 2 3 4

C

D

F

A

B

E

5 6 7 8

C-a

C-b

C-b2 3

AC

N70

1

6

&^

DEH-P4950MP/XU/ES 255 6 7 8

C

D

F

A

B

E

S

901:

HO

ME

SW

ITC

H...

......

.ON

-OF

F

S90

3:D

SC

SN

S S

WIT

CH

......

ON

-OF

F

S90

4:12

EJ

SW

ITC

H...

......

....O

N-O

FF

S90

5:8E

JS

WIT

CH

ON

-OF

F

1 2 3 4

C-b

C-a

C-a

C-b 1

PIC

KU

P U

NIT

(P10

.5)(

SE

RV

ICE

)

SW

ITC

HE

S:

CD

CO

RE

UN

IT(S

10.5

CO

MP

2)

F F TT

FF T TFF T T

FF T T

@#

%

DEH-P4950MP/XU/ES261 2 3 4

C

D

F

A

B

E

5 6 7 8

C-a

C-b

c-b

C-a

2 3

M1

CX

C71

34S

PIN

DLE

MO

TOR

M2

CX

C40

26LO

AD

ING

/CA

RR

IAG

E M

OTO

R

SW

ITC

HE

S:

CD

CO

RE

UN

IT(S

10.5

CO

MP

2)

S90

1:H

OM

E S

WIT

CH

......

....O

N-O

FF

S

903:

DS

CS

NS

SW

ITC

H...

...O

N-O

FF

S

904:

12E

J S

WIT

CH

......

......

.ON

-OF

F

S90

5:8E

J S

WIT

CH

......

......

...O

N-O

FF

The

und

erlin

ed in

dica

tes

the

switc

h po

sitio

n.

CD

DR

IVE

R

FT

S C CS

S

C

3 2 1

9 04

87

$

5

DEH-P4950MP/XU/ES 275 6 7 8

C

D

F

A

B

E

1 2 3 4

- Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram.2. Reference voltage REFO1(1.65 V)

500 ms/div5 V/div5 V/div5 V/div10 V/div

1DSCSNS5CLCONT4LOEJ6VD

5 V/div5 V/div5 V/div5 V/div

1DSCSNS28SNS312SNS4LOEJ


500 ms/div1DSCSNS28SNS312SNS4LOEJ

500 mV/div500 mV/div

200 ms/div@TE#FE

200 mV/div2 V/div2 V/div

500 ms/div0FIN!RFOK(MONI_2)7SIN

1 V/div500 mV/div1 V/div

1 s/div

500 ms/div

7SIN8CIN9TIN

2 V/div500 mV/div

5 μs/div$MDX7SIN

2 V/div500 mV/div

200 ms/div$MDX7SIN

500 mV/div500 mV/div500 mV/div500 mV/div

20 ms/div#FE0FIN@TE9TIN

1 V/div500 mV/div500 mV/div

500 μs/div%RFAGC@TE9TIN


2 ms/div@TE%RFAGC


200 ms/div0FIN#FE

Source On setup operation12 cm CD-DA Source On setup operation

CD-DA Play operation Spindle waveform during play operation Spindle waveform during play operation(Wider)

Focus Search waveform Track Open waveform 1 Track Jump waveform

12 cm CD-DA setup operation after loading

12 cm CD Loading operation 12 cm CD Loading operation 8 cm CD Loading operation

Ref.:GND

Mode:Normal

Ref.:GND

Mode:Normal

Ref.:GND

Mode:Normal

Ref.:REFO

Mode:Normal

Ref.:REFO

Mode:Normal

Ref.:REFO

Mode:Normal

Ref.:REFO

Mode:TEST

Ref.:REFO

Mode:TEST

Ref.:REFO

Mode:TEST

Ref.:REFO

Mode:Normal

Ref.:REFO

Mode:Normal

Ref.:REFO

Mode:Normal

DEH-P4950MP/XU/ES281 2 3 4

C

D

F

A

B

E

5 6 7 8


2 ms/div%RFAGC@TE9TIN







1 V/div1 V/div

200 μs/div^LOUT&ROUT


200 ms/div%RFAGC@TE8CIN7SIN


500 μs/div%RFAGC9TIN@TE0FIN



5 V/div5 V/div5 V/div

500 ms/div1DSCSNS5CLCONT4LOEJ

12 cm CD Eject operationAnalog audio waveform

12 cm CD Eject operation 8 cm CD Eject operation Black dot(800 μm) during play

Search operation(Outter to Inner)

4 Tracks Jump waveform 10 Tracks Jump waveform 32 Tracks Jump waveform

Ref.:REFO

Mode:TEST

Ref.:REFO

Mode:TEST

Ref.:REFO

Mode:TEST

Ref.:GND

Mode:Normal

Ref.:REFO

Mode:Normal

Ref.:GND

Mode:Normal

Ref.:REFO

Mode:Normal

Ref.:GND

Mode:Normal

Ref.:AGND

Mode:Normal

DEH-P4950MP/XU/ES 295 6 7 8

C

D

F

A

B

E
1 2 3 4
4. PCB CONNECTION DIAGRAM4.1 TUNER AMP UNIT

A

A TUNER AMP UNIT

CapacitorConnector

P.C.Board Chip PartSIDE B

SIDE A

NOTE FOR PCB DIAGRAMS1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram.2.Viewpoint of PCB diagrams

CCN701

AUXIP-BUS INPUT

CORD ASSY

DSENS

DEH-P4950MP/XU/ES301 2 3 4

C

D

F

A

B

E

5 6 7 8

A

SIDE A

4 3 2 1

GGGG

D CN1902

FRONT

FM

/AM

TU

NE

R U

NIT

REAR OUTPUTFRONT OUTPUTSUBWOOFER OUTPUT

ANTENNA

DEH-P4950MP/XU/ES 315 6 7 8

C

D

F

A

B

E

1 2 3 4

A

A TUNER AMP UNIT

1

TEST

>FU353 (B,131,131) Fuse 3 A CEK1286

DEH-P4950MP/XU/ES321 2 3 4

C

D

F

A

B

E

5 6 7 8

A

SIDE B

PCL

DEH-P4950MP/XU/ES 335 6 7 8

C

D

F

A

B

E
1 2 3 4
4.2 KEYBOARD UNIT

B

SIDE BSIDE AB KEYBOARD UNIT B KEYBOARD UNIT

ACN804

AU

DIO

EJE

CT

CLO

CK

AT

T

DIS

PLA

Y

EQ

FU

NC

TIO

N

BA

ND

SO

UR

CE

/V

OLU

ME

12

34

56

DEH-P4950MP/XU/ES341 2 3 4

C

D

F

A

B

E

5 6 7 8

DEH-P4950MP/XU/ES 355 6 7 8

C

D

F

A

B

E
1 2 3 4
4.3 CD CORE UNIT(S10.5COMP2)

C

SIDE AC CD CORE UNIT(S10.5COMP2)

PICKUP UNIT(P10.5)(SERVICE)A CN701

M2LOADING

/CARRIAGEMOTOR

M1SPINDLEMOTOR

DEH-P4950MP/XU/ES361 2 3 4

C

D

F

A

B

E

5 6 7 8

C

SIDE BC CD CORE UNIT(S10.5COMP2)

DEH-P4950MP/XU/ES 375 6 7 8

C

D

F

A

B

E
1 2 3 4
5. ELECTRICAL PARTS LIST

NOTE:• Parts whose parts numbers are omitted are subject to being not supplied.• The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS.....• The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. • Meaning of the figures and others in the parentheses in the parts list. Example) IC 301 is on the point (face A, 91 of x-axis, and 111 of y-axis) of the corresponding PC board. IC 301 (A, 91, 111) IC NJM2068V

Circuit Symbol and No. Part No.

Unit Number : YWM5153

Unit Name : Tuner Amp Unit

Unit Number :

Unit Name : Keyboard Unit

Unit Number : CWX3514

Unit Name : CD Core

Unit(S10.5COMP2)

AUnit Number : YWM5153Unit Name : Tuner Amp Unit

MISCELLANEOUS

IC 101 (B,60,59) IC HA12241FPIC 151 (B,134,81) IC PML015BIC 301 (A,93,131) IC PAL007CIC 401 (B,165,27) IC NJM2885DL1-33IC 601 (B,85,56) IC PEG298A

IC 702 (B,39,67) IC NJM2885DL1-33IC 751 (B,114,76) IC NJM2794VIC 921 (A,7,118) IC NJM2388F84IC 961 (B,64,33) IC S-80835CNMC-B8UQ 101 (B,38,93) Transistor 2SA1576A

Q 102 (B,31,110) Transistor DTC114EUAQ 351 (B,164,121) Transistor UMH3NQ 352 (B,140,119) Transistor UMH3NQ 353 (B,135,122) Transistor UMH3NQ 451 (B,121,110) Transistor DTC124EUA

Q 453 (B,121,116) Transistor UMD2NQ 701 (B,25,49) Transistor UMD2NQ 702 (A,6,65) Transistor 2SD2396Q 841 (B,125,24) Transistor 2SA1036KQ 842 (B,120,26) Transistor DTC114EUA

Q 851 (B,36,11) Transistor 2SA1036KQ 852 (B,36,7) Transistor DTC114EUAQ 911 (A,6,99) Transistor 2SD2396

Q 912 (B,18,68) Transistor UMD2NQ 931 (B,61,86) Transistor UMX1N

D 454 (A,109,108) Diode 1SS133D 701 (A,19,49) Diode HZS7L(C3)D 751 (B,114,65) Diode FTZ6R8ED 752 (B,113,82) Diode FTZ6R8ED 801 (B,32,17) Diode DAN202U

D 802 (B,36,17) Diode DAP202UD 803 (B,109,22) Diode DAN202UD 804 (B,106,26) Diode DAP202UD 805 (B,25,18) Diode DAN202UD 806 (B,25,22) Diode DAP202U

D 901 (A,76,106) Diode S5688GD 902 (A,79,104) Diode S5688GD 903 (A,67,94) Diode S5688GD 904 (A,63,94) Diode S5688GD 911 (A,19,80) Diode S5688G

D 912 (A,20,71) Diode HZS6L(B2)D 931 (A,57,89) Diode HZS7L(C3)D 932 (A,53,85) Diode HZS7L(A1)L 101 (A,53,67) Inductor LAU2R2KL 161 (A,112,87) Inductor LAU2R2K

L 401 (A,155,93) Inductor LAU1R0KL 402 (B,159,97) Inductor LCTAW220J2520L 403 (A,156,52) Inductor LAU1R0KL 602 (A,96,36) Inductor LAU2R2KL 852 (A,47,8) Inductor LAU2R2K

L 901 (A,36,100) Choke Coil 600 µH CTH1280X 601 (A,73,37) Resonator 15.000 MHz CSS1653>FU353 (B,131,131) Fuse 3 A CEK1286Z 401 (A,163,99) FM/AM Tuner Unit CWE1952AR401 (B,164,111) Surge Protector IMSA-6801-01Y901

> Fuse 10 A CEK1208

RESISTORS

R 101 (B,32,120) RS1/16S181JR 102 (B,33,98) RS1/16S222JR 103 (B,25,127) RS1/16S181JR 104 (B,36,132) RS1/16S101JR 105 (B,33,133) RS1/16S101J


DEH-P4950MP/XU/ES381 2 3 4

C

D

F

A

B

E

5 6 7 8


R 111 (B,33,105) RS1/16S562JR 112 (A,66,65) RD1/4PU102JR 113 (B,68,56) RS1/16S472JR 114 (B,66,56) RS1/16S472JR 116 (B,31,133) RS1/16S470J

R 117 (B,30,133) RS1/16S150JR 118 (B,56,64) RS1/16S0R0JR 151 (B,98,77) RS1/16S102JR 152 (B,98,79) RS1/16S102JR 153 (B,98,81) RS1/16S102J

R 180 (B,125,88) RS1/16S0R0JR 301 (B,126,105) RS1/16S471JR 303 (B,124,105) RS1/16S471JR 304 (B,139,105) RS1/16S471JR 306 (B,142,104) RS1/16S471J

R 309 (A,85,76) RD1/4PU153JR 351 (B,149,110) RS1/16S821JR 352 (B,156,117) RS1/16S0R0JR 353 (B,132,105) RS1/16S821JR 354 (B,134,105) RS1/16S821J


R 361 (B,149,113) RS1/16S223JR 362 (B,159,134) RS1/16S223JR 363 (B,135,127) RS1/16S223JR 364 (B,137,127) RS1/16S223JR 381 (B,136,127) RS1/16S0R0J

R 382 (B,139,124) RS1/16S0R0JR 383 (B,139,121) RS1/16S0R0JR 384 (B,145,117) RS1/16S0R0JR 385 (B,145,115) RS1/16S0R0JR 386 (B,145,120) RS1/16S0R0J

R 391 (B,144,123) RS1/16S0R0JR 392 (B,144,127) RS1/16S0R0JR 401 (A,156,56) RD1/4PU681JR 403 (B,157,80) RS1/16S681JR 404 (B,157,82) RS1/16S681J

R 405 (B,157,83) RS1/16S681JR 406 (B,157,87) RS1/16S681JR 407 (B,157,89) RS1/16S0R0JR 414 (A,135,38) RD1/4PU4R7JR 416 (A,135,54) RD1/4PU4R7JR 421 (B,155,79) RS1/16S0R0J

R 451 (B,122,107) RS1/16S103JR 452 (B,122,118) RS1/16S221JR 453 (B,121,113) RS1/16S153JR 454 (A,117,113) RD1/4PU102JR 602 (B,68,42) RS1/16S103J



R 613 (B,98,75) RS1/16S104JR 615 (B,69,62) RS1/16S0R0JR 616 (B,36,48) RS1/16S473JR 620 (B,93,65) RS1/16S0R0JR 701 (A,14,46) RD1/4PU271J


R 708 (B,56,42) RS1/16S221JR 709 (A,56,36) RD1/4PU102JR 710 (B,49,43) RS1/16S221JR 711 (A,56,38) RD1/4PU221JR 712 (B,49,50) RS1/16S221J

R 713 (B,36,46) RS1/16S102JR 714 (B,25,44) RS1/16S104JR 753 (B,109,68) RS1/16S0R0JR 755 (B,107,82) RS1/16S0R0JR 757 (B,107,74) RS1/16S223J

R 759 (B,107,76) RS1/16S223JR 803 (B,29,17) RS1/16S473JR 804 (B,105,21) RS1/16S222JR 805 (B,102,19) RS1/16S222JR 806 (A,87,15) RD1/4PU222J


R 813 (B,103,26) RS1/16S104JR 814 (A,110,26) RD1/4PU102JR 815 (B,103,22) RS1/16S102JR 816 (B,129,20) RS1/16S1R0JR 822 (B,33,45) RS1/16S102J

R 823 (B,30,65) RS1/16S102JR 824 (B,110,44) RS1/16S102JR 825 (B,26,14) RS1/16S102JR 826 (B,121,20) RS1/16S0R0JR 841 (B,124,29) RS1/16S103J

R 842 (B,121,28) RS1/16S472JR 851 (B,31,9) RS1/16S153JR 852 (B,33,7) RS1/16S472JR 853 (B,109,10) RS1/16S222JR 854 (B,32,12) RS1/16S0R0J

R 911 (B,18,64) RS1/16S223JR 912 (A,19,75) RD1/4PU152JR 922 (B,11,111) RS1/16S473JR 931 (B,60,54) RS1/16S104JR 932 (B,55,57) RS1/16S104J


R 938 (B,60,121) RS1/4SA102JR 961 (B,70,34) RS1/16S102JR 962 (B,62,37) RS1/16S822J


DEH-P4950MP/XU/ES 395 6 7 8

C

D

F

A

B

E
1 2 3 4
CAPACITORS

C 101 (B,28,133) CKSRYB104K25C 104 (B,52,64) CKSRYB103K50C 151 (B,144,78) CKSRYB105K10C 152 (B,145,77) CKSRYB105K10C 153 (B,160,71) CKSRYB224K16


C 159 (B,121,88) CKSRYB153K50C 160 (A,116,90) CEJQ100M16C 161 (B,135,95) CKSRYB153K50C 162 (A,115,99) CEJQ470M10C 163 (B,120,85) CKSRYB104K25

C 165 (A,131,93) CEJQ100M16C 305 (B,128,109) CKSQYB474K16C 306 (B,137,109) CKSQYB474K16C 307 (B,131,109) CKSQYB474K16C 308 (B,134,109) CKSQYB474K16

C 309 (B,125,132) CKSQYB225K10C 310 (B,128,130) CKSQYB225K10C 311 (A,104,122) CEJQ100M16C 313 (A,51,118) 3 300 µF/16 V CCH1494C 315 (B,129,113) CKSRYB474K10

C 316 (B,136,113) CKSRYB474K10C 317 (B,131,113) CKSRYB474K10C 318 (B,134,113) CKSRYB474K10C 351 (A,125,92) CEJQ2R2M50C 352 (A,139,92) CEJQ2R2M50

C 353 (A,130,99) CEJQ2R2M50C 354 (A,139,99) CEJQ2R2M50C 355 (A,124,99) CEJQ2R2M50C 356 (A,145,98) CEJQ2R2M50C 357 (B,163,129) CKSRYB222K50

C 358 (B,159,130) CKSRYB222K50C 401 (A,152,50) CEJQ470M6R3C 402 (B,154,49) CKSRYB103K50C 403 (B,150,33) CKSRYB103K50C 405 (A,152,87) CEJQ101M10

C 406 (B,167,92) CKSRYB104K25C 407 (B,163,66) CKSRYB103K50C 408 (A,157,29) CEJQ220M10C 410 (B,153,31) CKSRYB474K10C 411 (B,167,90) CCSRCH470J50

C 412 (B,160,40) CKSRYB105K10C 451 (A,120,121) CEJQ330M10C 601 (B,73,41) CCSRCH180J50C 602 (B,78,41) CCSRCH180J50C 604 (B,94,42) CKSRYB105K10

C 605 (A,97,40) CEJQ100M16C 606 (B,79,32) CKSRYB104K25C 607 (A,71,29) CEJQ100M16C 609 (B,146,48) CCSRCH470J50C 701 (B,23,44) CKSRYB473K25

C 703 (A,30,27) CEJQ101M10C 704 (B,144,73) CKSRYB105K10C 705 (B,126,74) CKSRYB105K10

Circuit Symbol and No. Part No.C 708 (A,39,73) CEJQ220M10C 709 (B,36,71) CKSRYB105K10


C 756 (B,109,74) CKSRYB105K10C 758 (B,109,78) CKSRYB105K10C 760 (B,107,78) CKSRYB105K10C 761 (A,119,63) CEJQ220M10C 762 (A,122,73) CEJQ100M16

C 851 (B,40,8) CKSRYB104K25C 901 (B,54,115) CKSRYB104K50C 911 (A,26,53) CEJQ470M10C 912 (B,23,68) CKSRYB103K50C 913 (A,22,60) CEAT102M16

C 921 (B,16,101) CKSRYB103K50C 922 (A,17,98) CEJQ221M10C 923 (A,15,114) CEJQ101M16C 924 (B,16,110) CKSRYB103K50C 961 (B,67,34) CKSRYB473K25

C 962 (A,65,38) CEJQ100M16

BUnit Number :Unit Name : Keyboard Unit

MISCELLANEOUS

IC 1801 (B,31,115) IC PD6340AIC 1802 (A,24,31) IC TSOP4840SB1D 1801 (B,38,95) Diode DAN202UD 1802 (B,37,100) Diode DAP202UD 1804 (A,26,164) LED CL-490S-WK-SD

D 1805 (A,10,7) LED SML-310VTD 1806 (A,38,10) LED SML-310VTD 1807 (A,17,14) LED SML-310VTD 1808 (A,17,24) LED SML-310VTD 1809 (A,36,24) LED CL-190UB2-X

D 1810 (A,28,20) LED CL-190UB2-XD 1811 (A,44,48) LED SML-310VTD 1812 (A,30,35) LED SML-310VTD 1813 (A,17,49) LED SML-310VTD 1814 (A,31,62) LED SML-310VT

D 1815 (A,43,84) LED SML-310VTD 1816 (A,42,96) LED SML-310VTD 1817 (A,42,109) LED SML-310VTD 1818 (A,41,121) LED SML-310VTD 1819 (A,41,134) LED SML-310VT

D 1820 (A,9,148) LED SML-310VTD 1821 (A,9,161) LED SML-310VTD 1822 (A,41,147) LED SML-310VTX 1801 (B,38,105) Ceramic Resonator 5.00 MHz CSS1547S 1801 (A,43,9) Push Switch CSG1155

S 1802 (A,36,28) Push Switch CSG1155S 1803 (A,43,80) Push Switch CSG1155S 1804 (A,42,118) Push Switch CSG1155S 1805 (A,43,93) Push Switch CSG1155S 1806 (A,25,62) Push Switch CSG1155


DEH-P4950MP/XU/ES401 2 3 4

C

D

F

A

B

E
5 6 7 8


S 1817 (A,20,14) Push Switch CSG1155S 1818 (A,41,143) Push Switch CSG1155S 1827 (A,30,49) Switch YSD5010LCD1801 (A,18,80) LCD YAW5083

RESISTORS

R 1801 (B,37,91) RS1/16S222JR 1802 (B,39,91) RS1/16S222JR 1803 (B,27,158) RS1/4SA561JR 1804 (B,23,21) RS1/4SA102JR 1805 (B,28,21) RS1/4SA561J

R 1806 (B,33,21) RS1/4SA821JR 1807 (B,28,64) RS1/4SA821JR 1808 (B,10,151) RS1/4SA821JR 1809 (B,10,154) RS1/4SA821JR 1810 (B,18,21) RS1/4SA102J

R 1831 (B,37,37) RS1/16S472JR 1832 (B,37,35) RS1/16S472JR 1833 (B,34,28) RS1/16S2R2JR 1835 (B,35,30) RS1/16S121J

CAPACITORS

C 1801 (B,35,32) CKSRYB474K10C 1802 (B,35,91) CKSRYB104K16C 1803 (A,36,21) CKSRYF104Z25C 1804 (A,33,20) CKSRYF104Z25C 1812 (A,38,162) CKSRYF104Z25

CUnit Number : CWX3514Unit Name : CD Core

Unit(S10.5COMP2)

MISCELLANEOUS

IC 201 (A,34,46) IC PE5547AIC 301 (A,27,14) IC BA5839FPQ 101 (B,56,72) Transistor 2SA1577Q 102 (B,47,57) Transistor 2SB1689

X 201 (A,23,35) Ceramic Resonator 16.934 MHz CSS1603S 901 (A,53,37) Switch(HOME) CSN1067S 903 (B,19,58) Switch(DSCSNS) CSN1067S 904 (B,38,67) Switch(12EJ) CSN1068S 905 (B,24,68) Switch(8EJ) CSN1068

RESISTORS

R 101 (B,60,73) RS1/10SR2R4JR 102 (B,59,71) RS1/10SR2R4JR 103 (B,60,71) RS1/10SR2R7J

Circuit Symbol and No. Part No.R 104 (B,52,69) RS1/16SS222JR 105 (B,41,57) RS1/16SS102J

R 107 (B,41,59) RS1/16SS105JR 202 (B,32,62) RS1/16SS473JR 203 (B,42,45) RS1/16S473JR 204 (A,25,61) RS1/16SS221J

R 206 (B,26,53) RS1/16SS104JR 210 (B,13,32) RS1/16SS102JR 214 (B,36,34) RS1/16SS472JR 216 (B,47,49) RS1/16SS472JR 221 (B,36,32) RS1/16SS103J

R 222 (B,35,32) RS1/16SS103JR 225 (A,49,49) RS1/16SS103JR 226 (A,49,50) RS1/16SS393JR 227 (B,45,51) RS1/16SS562JR 228 (B,42,53) RS1/16SS122J

R 229 (B,44,53) RS1/16SS472JR 230 (B,21,28) RS1/16SS0R0JR 232 (B,43,51) RS1/16SS122JR 233 (B,29,52) RS1/16SS103JR 234 (B,30,61) RS1/16SS473J

R 235 (A,25,63) RS1/16SS473JR 239 (B,26,48) RS1/16SS473JR 240 (B,10,31) RS1/16SS473JR 241 (B,9,32) RS1/16SS103J

R 244 (A,20,52) RS1/16SS473JR 255 (A,27,63) RAB4CQ104JR 307 (A,34,19) RS1/16SS183JR 308 (A,38,20) RS1/16SS183JR 309 (A,35,21) RS1/16SS183J

R 310 (A,38,21) RS1/16SS183JR 601 (B,28,38) RS1/16SS0R0JR 602 (B,27,41) RS1/16SS0R0JR 606 (B,23,41) RS1/16SS0R0JR 701 (B,16,35) RS1/16SS221J

R 702 (A,23,55) RS1/16SS221J

CAPACITORS

C 106 (B,56,69) CKSQYB475K6R3C 202 (A,27,57) CKSSYB104K10C 204 (A,24,63) CKSSYB103K16C 205 (B,23,43) CKSQYB475K6R3

C 206 (A,22,39) CKSSYB104K10C 207 (A,24,37) CKSRYB104K16C 209 (B,33,40) CEVW220M6R3C 210 (B,29,42) CKSSYB104K10C 211 (A,27,34) CKSSYB104K10

C 212 (B,29,32) CKSRYB104K16C 213 (A,44,37) CKSSYB104K10C 214 (A,28,33) CKSSYB104K10C 216 (A,50,51) CKSSYB332K50C 217 (A,46,51) CKSSYB104K10

C 218 (A,49,51) CKSSYB473K10C 219 (A,45,53) CKSSYB104K10C 220 (A,46,53) CKSSYB182K50C 221 (A,44,53) CKSSYB104K10C 222 (B,43,53) CCSSCH560J50

C 223 (B,45,53) CCSSCH4R0C50


DEH-P4950MP/XU/ES 415 6 7 8

C

D

F

A

B

E

1 2 3 4

C 224 (A,43,55) CKSSYB104K10C 226 (A,40,58) CCSSCH680J50C 227 (A,40,60) CCSSCH470J50C 228 (A,39,62) CKSSYB103K16

C 229 (B,49,59) CKSSYB104K10C 236 (A,42,61) CKSSYB104K10C 239 (B,44,51) CCSSCH220J50C 240 (A,35,61) CKSSYB104K10C 250 (B,36,30) CKSSYB102K50

C 251 (B,33,29) CKSSYB102K50C 303 (A,35,19) CKSSYB472K25C 304 (A,34,21) CKSSYB223K16C 307 (B,25,9) CKSRYB104K16C 308 (B,10,27) CKSRYB105K10

C 703 (B,11,37) CCSSCH101J50C 704 (B,8,36) CKSSYB102K50C 711 (A,25,26) CKSSYB104K10

Miscellaneous Parts List

Pickup Unit(P10.5)(Service) CXX1942M 1 Motor Unit(SPINDLE) CXC7134M 2 Motor Unit(LOADING/CARRIAGE) CXC4026


DEH-P4950MP/XU/ES421 2 3 4

C

D

F

A

B

E

5 6 7 8

6. ADJUSTMENT6.1 CD ADJUSTMENT

1) Cautions on adjustments• In this product the single voltage (3.3 V) is used for the regulator. The reference voltage is the REFO1 (1.65 V) instead of the GND.If you should mistakenly short the REFO1 with the GND during adjustment, accurate voltage will not be obtained, and the servo’s misoperation will apply excessive shock to the pickup. To avoid such problems:a. Do not mix up the REFO1 with the GND when connecting the (-) probe of measuring instruments. Especially on an oscilloscope, avoid connecting the (-) probe for CH1 to the GND. b. In many cases, measuring instruments have the same potential as that for the (-) probe. Be sure to set the measuring instruments to the floating state.c. If you have mistakenly connected the REFO1 to the GND, turn off the regulator or the power immediately.

• Before mounting and removing filters or leads for adjustment, be sure to turn off the regulator.

• For stable circuit operation, keep the mechanism operating for about one minute or more after the regulator is turned on.

• In the test mode, any software protections will not work. Avoid applying any mechanical or electrical shock to the mechanism during adjustment.

• The RFI and RFO signals with a wide frequency range are easy to oscillate. When observing the signals, insert a resistor of 1k ohms in series.

• The load and eject operation is not guarantied with the mechanism upside down. If the mechanism is blocked due to mistaken eject operation, reset the product or turn off and on the ACC to restore it.

2) Test modeThis mode is used to adjust the CD mechanism module.• To enter the test mode.While pressing the 4 and 6 keys at the same time, reset.• To exit from the test mode.Turn off the ACC and back up.

Notes:a. During ejection, do not press any other keys than the EJECT key until the loaded disc is ejected.b. If you have pressed the (→) key or (←) key during focus search, turn off the power immediately to protect the actuator from damage caused by the lens stuck.c. For the TR jump modes except 100TR, the track jump operation will continue even if the key is released.d. For the CRG move and 100TR jump modes, the tracking loop will be closed at the same time when the key is released.e. When the power is turned off and on, the jump mode is reset to the single TR (91), the RF amp gain is set to 0 dB, and the auto-adjustment values are reset to the default settings.

DEH-P4950MP/XU/ES 435 6 7 8

C

D

F

A

B

E

1 2 3 4

[Key]

Contents

Display

[4] + [6] + Reset or[4] + [6] + BU + ACC

Test Mode In

[CD] or [SOURCE]

Source On

TRK MIN SEC

[BAND]

Power On(T.Offset is adjusted)TRK MIN SEC00 00 00

[3]

Power On(T.Offset is not adjusted)

99 99 99

[2]

RF AMPGain switching

GG GG GG

*1[4]

SPINDLESpeed switching

SP SP SP

*9

[3]

Focus CloseS curve check

TRK MIN SEC91 91 91

[6]

Focus Mode switching

0X 0X 0X

*2

[1]

Tracking ServoClose

00 00 00or 99 99 99

[>]

CRG +

[2]

Self-adjustingswitching

TRK MIN SEC?? ?? ??

*3*8

[<]

CRG -*8

[BAND]

Power Off

TRK MIN SEC

[BAND]

Power Off

TRK MIN SEC

[BAND]

Power Off

TRK MIN SEC

[BAND]

Power Off

TRK MIN SEC

[1]T.Close & AGC

Applicable servomechanism

TRK MIN SEC?tr ?min ?sec

[6] [3]

RF AGC /RF AGC coefficient display

[>]

CRG +

8X 8X 8Xor 9X 9X 9X

[2]

T.Balance adjustment /T.BAL coefficient display

TRK MIN SEC?? ?? ??

[<]

CRG -T.CloseApplicable servomechanism

?? ?? ??

[1]

F,T,RF AGCF.Bias display switchingTRK MIN SEC

TRK MIN SEC

TRK MIN SEC


TRK MIN SEC

[3] [6]

CRG/TR jumpvalue switching

[>]

CRG/TR Jump +

[2]

Tracking Open

[<]

CRG/TR Jump -

?tr ?min ?sec

TRK MIN SEC

TRK MIN SEC


00 00 00or 99 99 99

TRK MIN SEC


8X 8X 8Xor 9X 9X 9X

8X 8X 8Xor 9X 9X 9X

00 00 00or 99 99 99

TRK MIN SEC?tr ?min ?sec?? ?? ??

*7 F,T AGC / F.BiasRF AGC

8X 8X 8Xor 9X 9X 9X

[2]

Tracking Open

*6

*5

*4 *4

Operation[Key] Test Mode

[BAND] Power On/Off[>] CRG + / TR Jump +

(Direction of the external surface)[<] CRG - / TR Jump -

(Direction of the internal surface)[1] T. CLS & AGC & Applicable servomechanism /

AGC,AGC display setting[2] RF Gain switching / Offset adjustment display /

T.Balance adjustment / T. Open[3] F. Close,S Curve / Rough Servo and RF AGC /

F,T,RF AGC[4] SPDL 1X/2X switching

As for the double speed(2x), audio output cannot besupported.

[5] Error Rate measurementON : ERR 30Counts StartBER display data[%]

[6] F. Mode switching / Tracking Close / CRG•TRJump Switching

*) • After the [Eject] key is pressed keys other than the [Eject] key should not be pressed, until disc ejection is complete.• When the key [2] or [3] is pressed during the Focus Search, the power supply should be immediately turned off (otherwise the lens

sticks to Wall, causing the actuator to be damaged).• In the case of TR jump other than to 100TR, the function shall continue to be processed even if the TR jump key is released. As for

the CRG Move and 100TR Jump, the mechanism shall be set to the Tracking Close mode when the key is released.• When the power is turned on/off the jump mode is reset to the Single TR (91) while the gain of the RFAMP is reset to 0 dB. At the

same time all the self-adjusting values shall return to the default setting.

*10

TRK MIN SEC

[5]

Gop ModeGop Mode switching

OL OL OL

- Flow Chart

*1) TYP → + 6 dB → + 12 dB TRK MIN SEC TRK06MIN06SEC06 TRK12MIN12SEC12

*2) Focus Close → S Curve check setting → F EQ measurement setting TRK00MIN00SEC00

TRK01MIN01SEC01 TRK02MIN02SEC02 (TRK99MIN99SEC99)

*3) F.Offset Display → RF.Offset → T.Offset Display → Switch to the order of the original display

*4) 1TR/4TR/10TR/32TR/100TR*5) Single → 4TR → 10TR → 32TR → 100TR → CRG Move 9x(8x):91(81) 92(82) 93(83) 94(84) 95(85) 96(86)

*6) Only at the time of CRG move, 100TR jump

*7) TRK/MIN/SEC → F.AGC → T.AGC Gain → F.Bias → RF AGC

*8) CRG motor voltage = 2 [V]

*9) TYP (1X) → 2X → 1X TRK MIN SEC

TRK22MIN22SEC22 TRK11MIN11SEC11*10) OFF(TYP) → FORCUS → TRACKING TRK MIN SEC

TRK70MIN70SEC70 TRK71MIN71SEC71

• As for the double speed (2x), audio output cannot be supported

DEH-P4950MP/XU/ES441 2 3 4

C

D

F

A

B

E

5 6 7 8

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT

CD CORE UNIT(S10.5COMP2)

• Note :The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if the PU unit must be changed, the grating should be checked using the procedure below.

• Purpose :To check that the grating is within an acceptable range when the PU unit is changed.

• Symptoms of Mal-adjustment :If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform track search operations, or taking a long time for track searching.

• Method :

• Measuring Equipment• Measuring Points

• Oscilloscope, Two L.P.F.• E, F, REFO1

• Disc • TCD-782• Mode • TEST MODE

• Checking Procedure1. In test mode, load the disc and switch the 3 V regulator on.2. Using the → and ← buttons, move the PU unit to the innermost track.3. Press key 3 to close focus, the display should read "91". Press key 2 to implement the tracking balance adjustment the display should now read "81". Press key 3. The display will change, returning to "81" on the fourth press.4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase difference is within 75° . Refer to the photographs supplied to determine the phase angle.5. If the phase difference is determined to be greater than 75° try changing the PU unit to see if there is any improvement. If, after trying this a number of times, the grating angle does not become less than 75° then the mechanism should be judged to be at fault.• NoteBecause of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the average angle.

• HintReloading the disc changes the clamp position and may decrease the "wobble".

100 kΩ

390 pF

100 kΩ

390 pF

E

VREF

F

VREF

Xch Ych

L.P.F.

L.P.F.

Oscilloscope

FE

REFO1

DEH-P4950MP/XU/ES 455 6 7 8

C

D

F

A

B

E

1 2 3 4

Grating waveform

45°

0°

75°

60°

30°

90°

Ech → Xch 20 mV/div, ACFch → Ych 20 mV/div, AC

DEH-P4950MP/XU/ES461 2 3 4

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D

F

A

B

E

5 6 7 8

6.3 ERROR MODE

- Error Messages

If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the users and also for facilitating trouble analysis and repair work in servicing.

(1) Basic Indication Method

1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN (minutes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO remains in blank as before.

2) Head unit display examples

Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.

8-digit display 6-digit display 4-digit display

ERROR–xx ERR–xx E–xx

(2) Error Code List

Code Class Displayed error code Description of the code and potential cause(s)

10 Electricity Carriage Home NG CRG can't be moved to inner diameter.

SERVO LSI Com- CRG can't be moved from inner diameter.

munication Error → Failure on home switch or CRG move mechanism.

Communication error between microcomputer and SERVO LSI.

11 Electricity Focus Servo NG Focusing not available.

→ Stains on rear side of disc or excessive vibrations on REWRITABLE.

12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).

Subcode NG → Failure on spindle, stains or damages on disc, or excessive vibrations.

A disc not containing CD-R data is found.

Turned over disc are found, though rarely.

CD signal error.

17 Electricity Setup NG AGC protection doesn't work. Focus can be easily lost.

→ Damages or stains on disc, or excessive vibrations on REWRITABLE.

30 Electricity Search Time Out Failed to reach target address.

→ CRG tracking error or damages on disc.

44 Electricity ALL Skip Skip setting for all track.

(CD-R/RW)

50 Mechanism CD On Mech Error Mechanical error during CD ON.

→ Defective loading motor, mechanical lock and mechanical sensor.

A0 System Power Supply NG Power (VD) is ground faulted.

→ Failure on SW transistor or power supply (failure on connector).

Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).

Unreadable TOC does not constitute an error. An intended operation continues in this case.

Upper digits of an error code are subdivided as shown below:

1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.

DEH-P4950MP/XU/ES 475 6 7 8

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F

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1 2 3 4

6.4 SYSTEM MICROCOMPUTER TEST PROGRAM

- PCL OutputIn the normal operation mode (with the detachable panel installed, the ACC switched ON, the standby mode cancelled), shift the TESTIN IC601(Pin 88) terminal to H. The clock signal is output from the PCL terminal IC601(Pin 39). The frequency of the clock signal is 468 750 Hz that is one 32th of the fundamental frequency.The clock signal should be 468 750 Hz(- 10 Hz, + 15 Hz).If the clock signal is out of the range, the X'tal (X601) should be replaced with new one.

DEH-P4950MP/XU/ES481 2 3 4

C

D

F

A

B

E

5 6 7 8

7. GENERAL INFORMATION7.1 DIAGNOSIS7.1.1 DISASSEMBLY

1

1

2

3

Fig.1

Fig.2

- Removing the CD Mechanism Module (Fig.1) CD Mechanism Module

- Removing the Grille Assy (Fig.1)

- Removing the Tuner Amp Unit (Fig.2)

Grille Assy

Remove the four screws.

1. Remove the Case.

Remove the screw.

Remove the three screws.

Straighten the tabs at four locationsindicated and then remove the TunerAmp Unit.

2

1

2

1

2

1

1 2

3

1

3

33

2

Disconnect the connector and then remove theCD Mechanism Module.

Tuner Amp Unit

2 Release the two latchs and thenremove the Grille Assy.

- Removing the Case (not shown)

DEH-P4950MP/XU/ES 495 6 7 8

C

D

F

A

B

E

1 2 3 4

A

A

B

B

Upper Frame

Lower Frame

B

B

B

B

a

Damper

Carriage Mechanism

Damper

Do not squeeze this area.

- How to hold the Mechanism Unit

- Removing the Upper and Lower Frames1. With a disc inserted and clamped in the

mechanism, remove the two Springs (A), the six Springs (B), and the four Screws.

2. Turn the Upper Frame using the part "a" as a pivot, and remove the Upper Frame.

3. While lifting the Carriage Mechanism, remove it from the three Dampers.

Caution: When assembling, be sure to apply some alcohol to the Dampers and assemble the mechanism in a clamped state.

1. Hold the Upper and Lower Frames.2. Do not hold the front portion of the Upper

Frame, because it is not very solid.

DEH-P4950MP/XU/ES501 2 3 4

C

D

F

A

B

E

5 6 7 8

Screw

Shorting Solder

CD Core Unit

Solder

Chassis

Pickup Rack

Pickup

Poly Washer Change Arm

Pickup Lock Arm

Feed Screw

Planet Gear

Inner Holder

- How to remove the CD Core Unit1. Apply Shorting Solder to the flexible cable of

the Pickup, and disconnect it from the connector.

2. Unsolder the four leads, and loosen the Screw.

3. Remove the CD Core Unit.Caution: When assembling the CD Core Unit,

assemble it with the SW in a clamped state so as not to damage it.

- How to remove the Pickup Unit1. Make the system in the carriage mechanism mode, and have it clamped.2. Remove the CD Core Unit and remove the leads from the Inner Holder.3. Remove the Poly Washer, Change Arm, and Pickup Lock Arm.4. While releasing from the hook of the Inner Holder, lift the end of the Feed Screw.Caution: When assembling, move the Planet Gear to the load/eject position before setting the Feed Screw in the Inner

Holder.Assemble the sub unit side of the Pickup, taking the plate (Chassis) in-between. When treating the leads of the Load Carriage Motor Assy, do not make them loose over the Feed Screw.

DEH-P4950MP/XU/ES 515 6 7 8

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1 2 3 4

7.1.2 CONNECTOR FUNCTION DESCRIPTION

RE

AR

O

UT

PU

T

SU

BW

OO

FE

R

OU

TP

UT

FR

ON

T

OU

TP

UT

AN

TE

NN

A

AU

X

1. B

US

+ 2

. GN

D 3

. GN

D 4

. NC

5. B

US

- 6

. GN

D 7

. BU

S L

+ 8

. AS

EN

B 9

. BU

S R

+10

. BU

S R

- 11

. BU

S L

-

1110

98

76

5

43

21

IP-B

US

INP

UT

16 1514 13

12 1110 9

8 76 5

4 32 1

1 B

. UP

2 G

ND

3 A

CC

4 N

C5

NC

6 B

. RE

M7

NC

8 N

C

9

RL-

10

FL-

11

RL+

12

FL+

13

RR

-14

F

R-

15

RR

+16

F

R+

DEH-P4950MP/XU/ES521 2 3 4

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D

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5 6 7 8

7.2 PARTS7.2.1 IC

PAL007C

1

TAB

2

P-GND2

3

OUT2-

4

STBY

5

OUT2+

6

VCC

7

OUT1-

8

P-GND1

9

OUT1+

10SVR

11IN1

12IN2

13S-GND

14IN4

15IN3

16AC-GND

17OUT3+

18P-GND3

19OUT3-

20VCC

21OUT4+

22MUTE

23OUT4-

24P-GND4

SWITCH

25

+-

+ -Offset

Detection+

-+ -

OffsetDetection

+-

+ -

OffsetDetection

+-

+ -

OffsetDetection

Protector;Over current limit

sw_v

cc

stby

Protector;Short circuit

Mute circuit

am

p_v

cc

Stand-byCircuit

Protector;Over voltage

sw_v

cc

Protector;Thermal

Referenceamp_vcc

1 32

S1 R out S2 GND

-BUS+BUSVCCstb

4

5678

BIAS

DRIVEROUTPUT(current)

+

-

-

+

COMRECEIVEROUTPUT

HA12241FP

DEH-P4950MP/XU/ES 535 6 7 8

C

D

F

A

B

E

1 2 3 4

- Pin Layout

1

2

3

4

5

6

7

8

9

10

28

27

26

25

24

23

22

21

20

19

11

12

13

14

18

17

16

15

IN1_L

IN2_L

IN3_L

IN4+_L

IN4-_L

Front_L

Rear_L

Vcc

Vref

GND

IN1_R

IN2_R

IN3_R

IN4+_R

IN4-_R

Front_R

Rear_R

STB

CLK

DATA

FIE_L

Pre/SW_L

Vp

Pref

FIE_R

Pre/SW_R

LMout

PGND

- Block Diagram

Isol

ator

Isol

ator

Aut

o

Zer

o

Gai

n

Adj

uste

r

Input Selector

TR

EB

AS

S

LOU

DN

ES

S

Fro

nt_R

Rea

r_R

Fro

nt_L

Rea

r_L

Ant

i-Alia

sF

ilter

Prim

ary

Vol

ume

IN1_

L

IN2_

L

IN3_

L

IN4+

_L

IN4-

_L

IN4-

_R

IN4+

_R

IN3_

R

IN2_

R

IN1_

R

STB

DATA

CLK

GND

Vcc

Vref

MID

Leve

l Met

er

LM_out

Sec

onda

ry

Vol

ume

Sec

onda

ry

Vol

ume

Pre

/SW

_L

Pre

/SW

_R

Ant

i-R

adia

tion

Filt

er

Sup

ply

&

Ref

eren

ce

Ant

i-

Rad

iatio

n

Filt

er

HP

F

Dig

ital

Blo

ck

Phase inv. LPF

FIE

FIE

FIE

_L

FIE

_R

Sec

onda

ry

Vol

ume

Vp

Pre

f

PG

ND

Sof

t ste

p B

lock

s(

)M

.S.S

.M

.S.

Sec

onda

ry

Vol

ume

Sec

onda

ry

Vol

ume

PML015B

DEH-P4950MP/XU/ES541 2 3 4

C

D

F

A

B

E

5 6 7 8

NJM2794V

OUT2

OUT1IN1-

IN1+

IN2+

IN2-

Vref

GND

V+ 14

13

12

11

10

9

8

1

2

3

4

5

6

7

IN1+

NC

IN1-

NC

IN2-

NC

IN2+

OUT1

NC

GND

VREF

V+

NC

OUT2

DEH-P4950MP/XU/ES 555 6 7 8

C

D

F

A

B

E

1 2 3 4

Pin No. Pin Name I/O Format Function and Operation12

3,45,6

789

10,1112131415161718192021222324252627282930313233343536

37,383940

41-464748

49-51525354555657585960616263646566

ILMPWNCROT1,0NCSWVDDBYTECNVSSNCresetXOUTVSSXINVCCnmidsensbsensasensCDRSTVDCONTbrstBRXENbsrqNCRX2NCRXTXBSOBSIBSCKNCDPDTKYDTNCPCLASENBONCDALMONSYSPWNCIPPWMUTEVSTVCKVDTNCROMDATAROMCKROMCSNCVCCNCVSSce@CE1

O

I

OII

IOIIIIIIIOOOI/OI

I

IOOIO

OI

OO

OO

OOOOO

I/OOO

I

IOO

C

C

C

CCCC

NC

C

C

CC

CC

CCCCC

CCC

CC

Illumination power outputNot usedRotary encoder pulse input 1, 0Not usedVDD for display microcomputer External data bus width change inputProcessor mode change inputNot usedReset inputMain clock outputGNDMain clock inputPower supply input(+)NMI inputDetach sense inputBackup sense inputACC sense inputCD mechanism RESET outputVD power supply outputP-BUS : Reset outputP-BUS : Reception enable input/outputP-BUS : Service request inputNot usedIPBUS : Input 2Not usedIPBUS : InputIPBUS : OutputPBUS : OutputPBUS : InputPBUS : Clock outputNot usedDisplay microcomputer communication data outputDisplay microcomputer communication data inputNot usedOutput for clock adjustmentIPBUS : Slave ACC sense outputNot usedFor consumption current reduction outputSystem power control outputNot usedIPBUS : Driver power supply control outputSystem mute outputE.VOL strobe outputE.VOL clock outputE.VOL data outputNot usedROM correction data input/outputROM correction clock outputROM correction chip select outputNot usedPower supply input(+)Not usedGNDTUNER : Chip enable output(EEPROM)TUNER : Chip enable output(PLL)

- Pin Functions (PEG298A)

DEH-P4950MP/XU/ES561 2 3 4

C

D

F

A

B

E

5 6 7 8

PEG298A

50 81

10031

80130

51

Format Meaning C CMOS N Nch open drain

Pin No. Pin Name I/O Function and Operation6768

69-85868788

89-9192

93,949596979899

100

TUNPCKTUNPDINCTUNPDONCTESTINNCSSENSNCMODELAVSSSLVREFAVCCNC

OI

O

I

IIIII

FormatC

C

TUNER : Clock output(PLL)TUNER : Data input(PLL)Not usedTUNER : Data output(PLL)Not usedTest program inputNot usedSource keyNot usedModel select inputA/D converter GND(Connected to VSS)Signal level input(Field intensity)A/D converter reference voltage inputA/D converter power supply input terminal(Connected to VCC)Not used

DEH-P4950MP/XU/ES 575 6 7 8

C

D

F

A

B

E

1 2 3 4

PE5547A

144 37

72109

367310

81

Format Meaning C CMOS N Nch open drain

- Pin Functions(PD6340A)Pin No. Pin Name I/O Function and Operation

1-5 SEG4-0 O LCD segment output6-9 COM3-0 O LCD common output 10 VLCD LCD drive power supply

11-14 KST3-0 O Key strobe output15,16 KDT0,1 I Key data input (analogue input)

17 REM I Remote control reception input18 DPDT I Display data input19 NC Not used20 KYDT O Key data output21 MODA GND22 X0 Crystal oscillator connection pin23 X1 Crystal oscillator connection pin24 VSS GND

25,26 KDT2,3 I Key data input27 NC Not used28 KST4 O Key strobe output

29-32 NC Not used33-55 SEG35-13 O LCD segment output

56 VDD Power supply57-64 SEG12-5 O LCD segment output

PD6340A

49

48 3332

17

161

64

DEH-P4950MP/XU/ES581 2 3 4

C

D

F

A

B

E

5 6 7 8

Pin No. Pin Name I/O Format Function and Operation123456789

10111213141516171819202122232425262728293031

32-363738394041424344454647484950515253545556575859

ROMDATAROMCKROMCSNCLOEJDSCSNS*sns!@snshomeTEMPVDSENSadenaADC.VDDADC.GNDFLMD0resetPULLDOWNNCtestinNCBSIBSObsckFTxDFRxDBRXENbsrqNCfmodeFLRQROMNCMCKRQLRCKOKpuenCD3VONCONTVDCONTCLCONTCDMUTETESTbrstREGSC.VDDC.GNDXTALX.GNDxtalX.VDDDA.VDDLOUTDA.GNDREGCDA.GNDROUT

I/OOO

OIIII

O

IIO

I

IOI/OOI

I/OI/O

IOI

OOOOOOOOII

I

O

O

O

/CCC

C

C

C

NNNN

/C/C

C

NNCCCCCC

E2PROM : Data input/outputE2PROM : Clock outputE2PROM : Chip select outputNot usedLOAD/EJECT direction switching outputDisc sense input8 cm disc detection input12 cm disc detection inputHOME SW sense inputTemperature information sense inputVD power supply short circuit/earth fault sense inputA/D reference voltage supply control outputPower supply for A/D converterGround for A/D converterFlash writing control terminalInternal microcomputer reset terminalPull-downNot usedChip check, test program start-up inputNot usedP-BUS : Serial data inputP-BUS : Serial data outputP-BUS : Serial clock input/outputTx for flash rewritingRx for flash rewritingP-BUS : Reception enable input/outputP-BUS : Service request inputNot usedFlash self-rewriting mode start-up inputFlash self-rewriting reset voltage controlOpen(EMPH)Not usedCLOCK requestLRCK reference enablePickup hologram power supply control outputCD + 3.3 V power supply control outputServo driver power supply control outputVD power supply control outputCRG/LOAD-EJECT switching control outputCD mute control outputTest terminalP-BUS : Communication reset inputCapacitor connection for standbyPower supply for internal microcomputerGround for internal microcomputerConnected to the crystal oscillatorGround for the crystal oscillatorConnected to the crystal oscillatorPower supply for the crystal oscillatorPower supply for DACOutput of audio for the left channel Ground for DACConnected to the capacitor for band gapGround for DACOutput of audio for the right channel

- Pin Functions (PE5547A)

DEH-P4950MP/XU/ES 595 6 7 8

C

D

F

A

B

E

1 2 3 4

Pin No. Pin Name I/O Function and Operation60616263646566

67-69707172737475767778

79-949596

97-108109110111112113114115116117118119120121122

123,124125126127128129130131132133134135136137138139140141142143144

DA.VDDD.GNDD.VDDREG16LRCKSCKODOUTSVMON0-2SVMON3C33M(rcs)(CKE)rascas)(LDQM)cas!(UDQM)weoe(cas)RDB0-15IO.GNDIO.VDDRA0-11FDTDSDMDEFMASYATESTA.VDDA.GNDRFIAGCOC3TAGCIRFOEQ2,1RF2-RF-A.GNDA.VDDABFEREFOUTFE-FEOADCINTE-TEOTE2TECLDPDAD.VDDAD.GND

OOOI/OI/OOOOOOOOOI/O

OOOOOOIO

IO

IOIII

IIIIOIOIIOOIOI

Format

CCC/C/CCCCCCCCC/C

CCCCC

Power supply for DACGround for digital circuitsPower supply for digital circuitsCapacitor connection for 1.6 V regulator3-wire audio LR clock output3-wire audio serial I/F clock output3-wire audio serial I/F data outputServo monitor input/output 0-2Servo monitor input/output 3(Ext MCK IN)DRAM CLOCKDRAM CSDRAM CKE outputOutput of DRAM RASDRAM Lower CAS(LDQM) outputDRAM Upper CAS(UDQM) outputOutput of DRAM WEDRAM OE(CAS) outputInput/output of DRAM data 0-15Ground for I/O terminalPower supply for I/O terminalOutput of DRAM address 0-11Output of focus drive PWMOutput of tracking drive PWMOutput of thread drive PWMOutput of spindle drive PWMOutput of EFM signalsAsymmetry inputAnalog testsPower supply for the analog systemGround for the analog systemInput of RFOutput of RFConnection to the capacitor for detecting 3TInput of AGCOutput of RF(AGC)Equalizer 2, 1Reversal input of RF2Reversal input of RFGround for the analog systemPower supply for the analog systemInput of AInput of BInput of FInput of EOutput of reference voltageReversal input of FEOutput of FEFE,TE A/D converter inputReversal input of TEOutput of TETE2TECOutput of LDInput of PDPower supply for servo ADCGround for servo ADC

DEH-P4950MP/XU/ES601 2 3 4

C

D

F

A

B

E

5 6 7 8

No. Symbol I/O Explain1 AMANT I AM antenna input AM antenna input high impedance AMANT pin is connected with

an all antenna by way of 4.7 μH. (LAU type inductor)A series circuit including an inductor and a resistor is connected with RF ground for the countermeasure against the hum of power transmission line.

2 RFGND RF ground Ground of antenna block3 FMANT I FM antenna input Input of FM antenna 75 Ω Surge absorber(DSP-201M-S00B)is necessary.4 VCC power supply The power supply for analog block. D.C 8.4 V ± 0.3 V5 SL O signal level Output of FM/AM signals level6 CE2 I chip enable-2 Chip enable for EEPROM ”Low” active7 NC non connection Not used8 CE1 I chip enable-1 Chip enable for AF•RF ”High” active9 CK I clock Clock

10 DI I data in Data input11 NC non connection Not used12 OSCGND osc ground Ground of oscillator block13 ROM_VDD power supply Power supply for EEPROM pin 13 is connected with a power supply of

micro computer.14 DO O data out Data output15 DGND digital ground Ground of digital block16 NC non connection Not used17 VDD_3.3 power supply The power supply for digital block. 3.3 V ± 0.2 V18 NC non connection Not used19 NC non connection Not used20 NC non connection Not used21 NC non connection Not used22 AUDIOGND audio ground Ground of audio block23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output 24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output

FMRF

ANT adjRF adj

FM ANT

T51 CF52

RFG

ND

OS

CG

ND

DG

ND

AU

DIO

GN

D

NC

VC

C

VD

D_3

.3 3.3 V 2.5 VIC 4

3.3 V 2.5 V

←

IC 22.5 V

NC

CE

2

RO

M_V

DD SL DI

CK

CE

1

NC

DO

NC

NC

NC

NC

7 6 13 5 10 9 8 11 14 18 19 20 21

1

3

2 12 15 22 16 4 17

IC 13.3 V

AM ANT FMRFATT

LPFOSC

IC 3 EEPROM5.0 V

IC 55 V 3.3 V←

ATT

MIXER, IF AMP DET, FM MPX

24

23

Rch

Lch

- FM/AM Tuner Unit

DEH-P4950MP/XU/ES 615 6 7 8

C

D

F

A

B

E

1 2 3 4

7.2.2 DISPLAY

- LCD(YAW5083)S

EG

ME

NT

CO

MM

ON

DEH-P4950MP/XU/ES621 2 3 4

C

D

F

A

B

E

5 6 7 8

7.3 OPERATIONAL FLOW CHART

VCC = 5 VPin 16, 62

Power ON

bsens = L (B.UP ON)

asens = L (ACC ON)

dsens = L (DETACH ON)

bsensPin 19

asensPin 20

dsensPin 18

SWVDD←HPin 7

ASENBO←HPin 40

Source keys operative

Completes power-on operation.(After that, proceed to each source operation)

SYSPW←HPin 48

Startscommunication

with Grillemicrocomputer.

Source ON

300 ms

300 ms

In case of the above signal, the communication with Grille microcomputer may fail.If the time interval is not 300 msec, the oscillator may be defective.

DEH-P4950MP/XU/ES 635 6 7 8

C

D

F

A

B

E

1 2 3 4

8. OPERATIONS

DEH-P4950MP/XU/ES641 2 3 4

C

D

F

A

B

E

5 6 7 8

(CXX1982)

DEH-P4950MP/XU/ES 655 6 7 8

C

D

F

A

B

E

1 2 3 4

- Connection Diagram

DEH-P4950MP/XU/ES661 2 3 4

C

D

F

A

B

E

5 6 7 8

DEH-P4950MP/XU/ES 675 6 7 8

C

D

F

A

B

E

1 2 3 4

Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools:

Portions to be cleaned Cleaning toolsg

CD pickup lenses Cleaning liquid : GEM1004

Cleaning paper : GED-008g p p

- Jigs List

Test DiscL.P.F.

TCD-782 Checking the gratingg g gChecking the grating g g g (Two pieces)( p )

Name Jig No. Remarks

- Grease List

GreaseGrease

GEM1024GEM1045

CD Mechanism ModuleCD Mechanism Module

Name Grease No. Remarks

DEH-P4950MP/XU/ES681 2 3 4

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