Sansui 661 Service Manual

5/14/2018 Sansui 661 Service Manual

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SERVICE MANUALAM/FM STEREO RECEIVER

S A N S U I & & 1

SANSUI ELECTRIC CO., LTD.


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__ 661

This service manual is designed for service engineers to repair,adjust, maintain and order the replacement parts of the 661 correctly.When ordering the parts, use the stock number and parts name speci-fically referring to the Parts Locations & Parts List.For general usage and maintenance of the unit, please refer to theOperating Instructions attached with the unit.

TABLE OF CONTENTS _Section Title Page1. SPECIFICATIONS................................................ 22. BLOCK DIAGRAM AND LEVEL DIAGRAM 3

2-1. Block Diagram 32-2. Level Diagram 4

3. THREADING OF DIAL CORD 54. ALIGNMENTS AND ADJUSTMENTS 6

4-1. Driver Circuit Board Adjustment 64-2. FM IFAlignment 74-3. FM Dial Calibration and RFAlignment , 7,84-4. FM Signal Meter, Mono Distortion and Muting Adjustment. . .. 84-5. MPX Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 94-6. AM IF, Dial Calibration, RFand Signal Meter Alignment. . .. 9, 105. TROUBLESHOOTING CHART 115-1. Troubleshooting on Power Supply Section 115-2. Troubleshooting on Audio Section. . . . . . . . . . . . . . . . . . . . . . . . .. 115-3. Troubleshooting on Tuner Section , 11, 12

6. PARTS LOCATIONS AND PARTS LIST 136-1. F-1501Pre Amplifier Circuit Board , 13, 146-2. F-1491A Tuner Circuit Board 15,16,176-3. F-1499A Driver Circuit Board 18, 196-4. F-1500A Power Circuit Board , 19,206-5. Other Parts (Front Side) 21, 226-6. Other Parts (Top Side) 236-7. Other Parts (Bottom Side). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 23

7. SCHEMATIC DIAGRAM OF TUNER SECTION 248. SCHEMATIC DIAGRAM OF AUDIO SECTION 259. PACKING LIST 2610. ACCESSORY PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2611. MAINTENANCE................................................ 26

11-1. Voltage Adjustment 26


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1. SPECIFICATIONSA UD IO SE CT IO NPOWER OUTPUT (at rated distortion)MUSIC POWER(IHF) 110W (4.0 1,000Hz)75W (3.0 1,OOOHz)CONTINUOUS POWER(Each Channel Driven) .. 40/40W (4.0 1,OOOHz)

32/32W (3.0 1,000Hz)(Both Channels Driven) .. 27+27W (3.0 1,OOOHz)

20+20W(3.0 20 to 20,OOOHz)

TOTAL HARMONIC DISTORTION(at rated power output)

OVERALL (from AUX) .... Iess than 0.5%INTERMODULATION DISTORTION

(at rated power output, 70Hz: 7,000Hz=4 : 1SMPTE method)OVERALL (from AUX) .... Iess than 0.5%

POWER BANDWIDTH (lHF) 15 to 40,OOOHzFREQUENCY RESPONSE (at 1 Watt power output)OVERALL (from AUX) .... 15 to 30,000Hz ~~:~dB

EQUALIZATION (at TAPE REC output).................... RIAA Curve

(30 to 15,000Hz 1.0dB)LOAD IMPEDANCE 4 to 16.0DAMPING FACTOR 60 (3.0)CHANNEL SEPARATION (1,000Hz, at rated power output)PHONO better than 45dBAUX better than 45dB

HUM AND NOISE (IHF)PHONO better than 70dBAUX better than 30dB

INPUT SENSITIVITY AND IMPEDANCE(1,OOOHz,for rated power output)PHONO 2.5mV 50kn(Max. input capability: 150mV at rated distortion)AUX 100mV 50knTAPE-1PLAY Pin jacks 100mV 50knREC/PLAY DIN Socket .. 100mV 50knTAPE-2 (4-CH ADAPTOR)PLAY Pin jacks 100mV 50kn

RECORDING OUTPUTTAPE-1REC Pin jacks 100mVREC/PLAY DIN Socket .. 30mV

TAPE-2 (4-CH ADAPTOR)REC Pin jacks 100mVSWITCHES AND CONTROLSBASS 10dB at 50Hz

TREBLE 10dB at 10,000HzLOUDNESS +10dB at 50Hz,

+3dB at 10,000HzHIGH FILTER -10dB at 10,OOOHz(6dB/oct.)

T UN ER S EC TIO NTUNING RANGE 33 to 103MHzSENSITIVITY (IHF) 2.2f1VTOTAL HARMONIC DISTORTIONMONO 0.5%STEREO 0.7%

SIGNAL TO NOISE RATIO .. better than 60dBSELECTIVITY better than 50dBCAPTURE RATIO 2.5dBIMAGE REJECTION better than 55dB at 93MHzIF REjECTION better than 60dB at 93MHzSUPURIOUS RESPONSEREJECTION

.................... better than 60dB at 93MHzSPURIOUS RADIATION Iess than 34dBSTEREOSEPARATION better than 35dB at 400HzFREQUENCY RESPONSE 30 to 12,000Hz ~~:~dBANTENNA INPUT IMPEDANCE

.............. 300.0 balanced, 75.0 unbalancedTUNING RANGE 535 to 1,605kHzSENSITIVITY (Bar Antenna) .. 50dB/m at 1,000kHzSELECTIVITY better than 23dB at 1,OOOkHIMAGE FREQUENCY REJECTION

................ better than 8OdB/m at 1,OOOkHIF REjECTION better than 30dB/m at 1,OOOkHOTHERSSEMICONDUCTORSTRANSISTORS 45FET 1ICs 2DIODES 25ZENER DIODES .4

POWER REQUIREMENTSVOLTAGE 100,117,220, 240V, SO/60HzCONSUMPTION 70W (rated), 210VA (max.)

DIMENSIONS 444mm (17-}2''') W,135mm (5-%") H,300mm (11-%;/1) D

WEIGHT 10kg (22.0 Ibs.) net,12.4kg (27.3 Ibs.) packed

Des ign and speci fications subject to change wi thout notice forimprovements.

2


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t a6612. BLOCK DIAGRAM AND LEVEL DIAGRAM2-1. Block Diagram

______ lUNER CIRCUIT LAMP UNIT

001F1502

P RE A MP C IR CU IT DRIVER CIRCUIT POWER CIRCUIT

l-CHPHONO

AUrRECT t : ; t .rRECT t t ' &

r--f:-l~Q!_ ~ r - - - E : 1_5QLJ

~ 'lJ 'F1499 F1500

~2

"~' :~l . ~ 1 3 rl , IU , ; ' ~ ~ ' , ;;; > ~Olaf !l ~ &RRENT~ TR09.:~ 0 P o I S02'~ 'k > b TR07 \!>F J ::l ~ I" T~ 9 i i 6 3 I 5i ~ Q~2 ~ T~1= T;;3 T';iii \!> I2 S03a(t_ ~ I

-*tS702b

4;- Ir w I I r U ~ 4 1 SOlb~ ! q ~1 WRENT~ ~ I 1K ,. ..~ ~~ S05b IX < I is ~ \!> IT~ g ; r G\ TROB2 ~ r r ; - ~ 61 Tii52 "g. I3b 1 ::l ~ e; ~ Q~ r ' R ' i i ~S08~i ~ ~1= \!> IY 1 I \!:>I I'

I ~.@----3_S702C 3P 2 2 ITAPERECi~- _ _ _J02

R-CHPHON

AUrRECT t t ' &cREC

TAPE"PlA

AC

=:::1 J01r E P D P H O N E S, / . J A CK

3


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2-2. Level Diagram* Each number ((i), @, @ .... ) indicated in Level Dia-gram undermentioned corresponds to the number inBlock Diagram.

1. MASTERVOLUME control Maximum2. BASS,TREBLE,BALANCE volume control Center3. Input PHONO 2.0mV 1kHz Sine Wave

AUX-1 80mV 1kHz Sine Wave(output impedance of 600.0 at anaudio oscillator)

4. Output 16V (32W) 8.0Note: Eachvoltage value is for reference and measured

by a VTVM. In some recorders, the actual volt-age value is in minor difference from the refer-ence value.

dB 10.-1

0-10-20 1 _ 130 80mV 80mV-40 (-45dB) (-45dB)-50 T60 2.0mV-70 (-77dB)-80

70mV(-47dB)

16V(OdB)

SOl a, b : TAPE MONITOR-l S05a, b : HIGH FILTER S702a-d: SELECTOR1. OFF 1. OFF l. PHONO2. ON 2. ON 2. FM AUTO

S02a, b: TAPE MONITOR-2 S08 FM MUTING 3. AUXl. OFF l. ON S703 POWER2. ON 2. OFF SOl FM DE-EMPHASIS

S03a, b: MODE S701a-do SPEAKERS l. 75/1sl. STEREO l. OFF 2. so,2. MONO 2. A

S04a, b : LOUDNESS 3. Bl. OFF 4. A+B2. ON

4


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~661

3. THREADING OF DIAL CORDIf dial cord is cut or slips, replace cord by followingprocedures. As 661 is used 0.6mm~ cord, please replaceit with same type certainly.

Fig. 3-1

9,3 turns(Counterclockwise)

1. Threading of Dial CordThread dial cord in numerical order from 1 to 16 asshown in Fig. 3-1.

1) Close the variable capacitor completely (Max. ca-pacitance) and tie cord to number @ screw of thedial pulley.2) Thread cord in the direction of arrow from 1 to 3,then wind cord three turns around the tuning shaftcounterclockwise.3) Thread cord in the direction of arrow from 4 to 12,then wind it two turns on the dial pulley from 13to 16.4) After 16, tie cord to number screw of the dialpulley.* When you perform procedure 4) successfully,please refer to the followings.CDTostrengthen the dial cord tension, hold aroundthe end of cord and pull it toward the FrontPanel.@Then, turn tuning shaft counterclockwise, as thecord tension will be more constantly obtained.Tie the cord to number screw of the dial pulley(same as procedure 4).5) After procedures, lock the knots of cord with paint.5

* Length of dial cord approx. 150cm (59 inch)

2. Attachment of Dial Pointer1) Close the variable capacitor completely.2) Set the dial pointer to "0" on dial scale and installthe dial pointer ass'y (See Fig. 3-2).

Fig. 3-2

FMAM c 1020.

Stock No. Description6036050 Dial Cord (0.6mm(b)


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4. ALIGNMENTS AND ADJUSTMENTSAbbreviationEquipmentAM FM Generator Oscilloscope GenescopeAM Standard Signal Generator AM SSGFM Standard Signal Generator FM SSGFM Stereo Generator Stereo SGOscilloscope ScopeAudio Oscillator Audio Osci.Distortion Meter Dist. Meter

OthersClockwise CWoCounterclockwise CCW.Antenna ANT.Modulation MOD.

4-1. Driver Circuit Board Adjustment (See Figs. 4-1, 4-2 and 4-3)Note: 1. Master Volume Minimum

2. Speaker Selector SYSTEM (A)3. Make the SP t erminals free (no load).4. Confirm the AC Power Supply voltage.5. After adjustment, run the unit for more than 5 minutes, then check and readjust necessary.6. Room temperature should be 18~28 (6S~83F) for bias current adjustment.

STEP I SUBJECT EQUIPMENT I MEASURE OUTPUT I ADJUST ADJUST FOR1 I DC OV L-ch DC volt meter Speaker terminal I F-1499 OV 10mVL-ch VR01(Fig. 4-1)

CONDITION

2 DC OV R-ch Same as above Speaker terminal F-1499R-ch VR02(Fig. 4-1)3 Bias current DC milliammeter F-1S00 F-1499L-ch F01 VR03

; (Fig. 4-2)4 Bias current Same as above F-1500 F-1499R-ch F02 VR04(Fig. 4-2)

Fig. 4-1 Fig. 4-2SPEAKER TERMINAL

Same as above

o Step down meter's rangeaccordinglyo Change lead's polarity ifmeter swings backwardSame as above

191mA o Step down meter's rangeaccordingly! Same as above Same as above

F1500r m (:O~],~ ~-+

Fig. 4-3 F1499

VR03bias currentvolumeVROlDCOVvolume

VR02DCOVvolumeVR04bias currentvolume

6


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ta66!4-2. FM IF Alignment (See Figs. 4-8 and 4-9 on page 10)Note: 1. Selector ....................... FM AUTO

2. Master Volume Minimum3. Output level of genescope After attenuator4. Sweepwidth 1.5~2cm/150kHz5. Frequency band 9.5~11.5MHz

STEP I SUBJECT FEED S IGNALFROM TO

6. Connection Connect the output ofgenescope to TP. 1 through 100pF ceramic capacitor.

DETECTOR PROBE BLOCKo-wtv--i t-.--.t..............o4.7kn lOpF

IN gz

MEASUREOUTPUT ADJUST ADJUST FOR CONDITION

o Turn core of T05CCW.IF coil Output 55dBGenescopeI

TP.1, (fig. 4-9)

2 Meter coil Same asaboveSame as above

I

3 I Descrimina-I'tor coil Same as aboveSame asabove

TP.2(fig. 4-9)Use DetectorProbeTP.4(Fig. 4-9)Direct fromGenescope

T01, T02 Max. IFwave-form 1 asFig. 4-8

T05, T06 i Max. IFwave- Iform 2 IISet the centerof wavefrom 2with waveform I1 as Fig. 4-8 iMax. linearityof S curve, Set the center

Iof S curvewaveform 1 &

i 2 as Fig. 4-8

TP.3(Fig. 4-9)Direct fromGenescope

T03T04

Note: 1.2.3.4.5.

4-3. FM Dial Calibration and RF Alignment (See Fig. 4-9 on page 10)Selector FM AUTOMaster Volume MinimumFM Muting switch ................. OFF (pushed in)Confirm start point of dial pointer before alignment.In Step 3, 4 and 5, readjust items of steps 1, 2, it not correctly, and repeat 3, 4 and 5 again.

VTVM SCOPEFM SSG UNIT EB v OUT TAPE~NT REC , . . . - - - " " ' " IN OUT ,.-----"\~ _'t- - i...:-0 _J-----1~ 0-

FEED S IGNAL CONDITIONSTEP I SUBJECT FROM TO MEASUREOUTPUT ADJUST I A DJU ST FO R1 I 88MHz 88MHz ANT RECOUT L or L0 3 I Max. output I Set Dial on 88MHzDial Calibration ANT input 60dB terminal R-ch1kHz (100% MOD) 300n VTVM & Scope

j I FM t " ~ ~ , , ' , , ~ ~ , , rM SSG I2 108MHz 108MHz Same as Same as Trimmer I Same as I . S " D;,' 00 108MH,Dial Calibration ANT input 60dB above above TC03 above1~~",,,~~~,,,,,~~MHz IkHz (100% MOD)I FM SSG

7


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--FEED S IGNAL MEASURE

ISTEP SUBJECT I TO OUTPUT ADJUST ADJUST FOR CONDITIONFROM3 I Conf irm 88MHz Same as Step 1 Same as I Same as I Confirm I 0 If not, repeat from. Dial Cal ibration above above 88MHz Dial i Step 1

I Calibration i4 Conf irm 98MHz 98MHz Same as Same as ConfirmDial Calibration ANT input 60dB above above 98MHz Dial1kHz (100% MOD) Cal ibrationFM SSG

5 Confirm Same as Step 2 Same as Same as Confirm oIf not, repeat f rom108MHz above above 108MHz Dial Step 2Dial Calibration Calibration6 88MHz RF Adj. 88MHz Same as Same as L01, L02 Max. output oTune FM SSG (Max.ANT input 10dB above above indication of Signal1kHz (100% MOD) Meter)FM SSG7 i 108MHz RF Adj. 108MHz Same as Same as Trimmer Same as Same as above

I ANT input 10dB above above TC01, TC02 aboveI 1kHz (100% MOD)I I FM SSG

4-4. FM Signal Meter, Mono Distortion and Muting Adjustment(See Fig. 4-9 on page 10)

Note: 1. Selector FM AUTO2. Master Volume Minimum

V T V M SCOPEFMSSG UNIT I~-fl v OUT TAPEANTREC ~--- IN OUT ..---- . . . . . .

'to -Lk> o - f - 1 " . - - .-tT ITI I I II I III : DIST. METER : Il - ~ - - - 1 EB~b~ jSTEP SUBJECT FEED S IGNAL MEASUREOUTPUT ADJUST ADJUST FOR I CONDITIONFROM I TO1 Signal Meter 9BMHz ANT term i- Signal Meter VR02 4.3 on meter

I

oTune FM SSG (Max.ANT input 66dB nal

~indication of Signal1kHz (100% MOD) 300n Meter)FM SSG o Before adjustment, ifmeter swings out ornot enough, preadjust

I VR02 unt il t he reason-: able point2 I Distortion Same as above Same as REC OUT L T03 Min. distort ion o Tune FM SSG (Max.above or R-ch indication of signalDist . meter

Imeter)& Scope

3 Muting Level 98MHz Same as REC OUT L VR03 Audio signal o Set FM MUTING switchANT input 25dB above or R-ch just muted to OFF (pushed in)1kHz (100% MOD) VTVM &FM SSG Scopei

II

8


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661

4-5. MPX Alignment (See Fig. 4-9 on page 10)Note: 1. Selector ......................... FM AUTO 4. Before adjustment, turn VR04 CW (Max.) and VR05 to

center.

AUDIO osctCONDITIONI I FEEDSIGNALSTEP SUBJECT ---FR~O-M----"'--~TO-- MEASUREOUTPUT ADJUST ADJUSTFOR

19kHzcoil Max. output o Tune FM SSG (Max.indication of signalmeter)1

Indicator(Lightinglevel)

2 Separation

3 CofirmSeparation

4

98MHzANT input 60dBFM SSGPilot 19kHz(10% MOD)L-ch 1kHz(45% MOD)R-ch (0% MOD)Stereo SGSame as above

ANTterminnal300[lREC OUT T11L-chVTVM&Scope

REC OUT VR05R-chVTVM&ScopeREC OUTL-chVTVM &Scope

o Tune FM SSG (Max.indication of signalmeter)

98MHzANT input 60dBFM SSGPi lot 19kHz(10% MOD)L-ch (0% MOD)R-ch 1kHz(45% MOD)Stereo SG98MHzANT input 37dBFM SSGPilot 19kHz(10% MOD)Stereo SG

Same asabove

Same asabove

Stereo indi- VR04cator lamp

Min. output

Same asabove

Min. output o If less the 35dB, adjustVR05

Light ing Point

4-6. AM IF, Dial Calibration, RF and Signal Meter Alignment(See Figs. 4-5, 4-6, 4-7 and 4-9 on page 10)Note: 1. Selector ......................... AM

2. Master Volume ................. Minimum3. Confirm start point of dial pointer before alignment.4. In case of using loop antenna, increase output of AM SSG for 26dB than bar antenna's direct input as it attenuates input

sensitivit y for 26dB (See Fig. 4-4).5. After adjustment of signal meter, confirm the meter's swing on FM. (If meter swings out or not enough, readjust VR02.)

(See Page 8)

9

Fig. 4-4

B A : : y R N T fP A N T .60cm

G EN E S CO P EoE J


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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VTVM SCOPEr : roT~ UNIT I--rlTAPE0 REC IN OUTBAR ANTSTEP I FEED SIGNAL MEASURE ADJUST I ADJUST FORUBJECT FROM I TO OUTPUT CONDITION1 IF coil Output 90dB OSCtrimmer TP. 5 T07 Max. IF wave- oTurn core T08& T09Genescope cap. (TC04) (Fig. 4-9) form as Fig. 4-5 CCW.(Fig. 4-9)2 IF coil Output 70dB Same as Same as T08 Max. IF wave-Genescope above above form as Fig. 4-63 IF coil Output 60dB Same as Same as T09 Max. IF wave- o If not, readjust T07 &Genescope above above form as Fig. 4-7 T08 slightly4 535kHz 535kHz Bar ANT REC OUT l T10 Max. output o If broadcasting stationDial calibra- ANT input 86dB or R-ch is near, it might be usedtion 400Hz (30% MOD) VTVM &AM SSG Scope I 5 ~ 5 1 r i l l nrln r I I r I IUse loop ANT 5 5 6005 1400kHz 1400kHz Same as Same as Trimmer Same as above Same as aboveDial Calibra- ANT input 86dB above above Cap. TC04tion 400Hz (30% MOD) ' n o o ' I ' " 1 ' 1~ ' , I " , \60JAM SSGUse loop ANT6 Confirm 600kHz Same as Same as Confirm o If not, repeat from600kHz ANT input 86dB above above 600kHz Dial Step 4Dial Calibra- 400Hz (30% MOD) Calibrationtion AM SSGUse loop ANT7 Confirm 1000kHz Same as Same as Confirm1000kHz ANT input 86dB above above 1000kHz DialDial Calibra- 400Hz (30% MOD) Calibrationtion AM SSGUse loop ANT8 Confirm Same as Step 5 Same as Same as Confirm o If not, repeat from Step1400kHz above above 1400kHz Dial

Dial Calibra- Calibrationtion9 600kHz 600kHz Same as Same as Bar ANT Max. outputRF Adj. ANT input 50dB above above l701400Hz (30% MOD)AM SSGUse loop ANT10 1400kHz 1400kHz Same as Same as Trimmer Same as aboveRF Adj. ANT input 50dB above above Cap. TC05400Hz (30% MOD)AM SSGUse loop ANT11 Signal Meter 1000kHz Same as Same as VR01 4 on meter o Tune AM SSG (Max.ANT input 100dB above above indication of signal400Hz (30% MOD) 5E meter)AM SSG o Before adjustment, ifUse loop ANT meter swings out ornot enough, preadjustVR01 until the reason-able point


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Fig. 4-5

Fig. 4-6

Fig. 4-7

Fig. 4-8

IIl waveform 3IIIIIIIII

Fig. 4-9

FM stereoIndicator ~volume ~/ TIl19kHz

VR04 coil

VROS(fjjJFM stereoseparationvolume

@ jVR03FM mutingvolumeFM

AMOSCcoil(535kHz)

G ~ r

~TP.3~T04

~T03discriminatortransformer

~P.2

T07AM IFcoil

F-1491

FM RFcoil(88MHz)

10


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1 B i 6 6 15. TROUBLESHOOTING CHART5-1. Troubleshooting on Power Supply Section

Symptom Check Point1. No power supplied to each section1-1. Each lamp not lighted~-~

Cause & What to Do

-~~~~~-----r--l. Imperfect contact of power supply plug~-2. Defective power switch 5703

-3. Imperfect contact of voltage selector--4. Powet fuse F701open--5. F05on F-1500open

-6. Defective power transformer1-2. Each lamp lighted

--1) +23V not supplied to emitter of TR05 and+13.2V not supplied to emitter of TR06 onF-1500-- - -_ ......._-_ ...-

2) +27V not supplied toF-1499

terminal [Q ~ ([O_'!Dn.....-~~11.

1 - - - = 12.---13.

F07,FOBon F C1500 openDefective D05~D06on F-1S00Defective TROS,TR06on F-1S00Defective ZD01,ZD02 on F-1500

F01,F02on F-1S00openDefective DOl, D04on F-1S00Defective TR01,TR02on F-1S00

-3) -27V not supplied to terminal [1 J (1J1j) onF-1499--------------------r--'14. F03,F04on F-1500open

t _ . . ~ : : ~ : : : : : ~ ~ : ~~~;,DTo:O:nO~-;~~~OO4) Normal voltages supplied to each terminal onF-1500-------------- --- ...-- ..

" " - - 1 - = . ; :. -20.--21.

5-2. Troubleshooting on Audio Section1. Quick acting fuse open1-1. After replacement, fuse open again---~----

F06on F-1500openDefective D07, DOBon F-1S00Defective TR07,TROBon F-1500Defective Relay RY10l on F-1S00Defective D09-D12 on F-1500

Defect ive TR01,TR03(TR02,TR04)on F-15Defective TR09,TRll (TR10,TR12)on F-14Defective TR07(TROB)on F-14991-2. After replacement, fuse not open

1) DC Bias current adjustable-----------4. Set the current to j19mAby VR03 (VR02) DC Bias current not adjustable -r-5. Defective VR03(VR04)on F-1499

1--6. Defective TR05(TR06)on F-14993) Center voltage adjustable------------7. Set the center voltage to OVby VROl(VR

on F-14994) Center voltage not adjustable---------.---;8. Defective TR01,TR03(TR02,TR04)on F-1r--9.

L-10.Ln11

Defective TR05(TR06)on F-1499Defective DOl, D03 (D02, D04) on F-1499Defective VROl(VR02)on F-1499


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_ _ 1 _ _ . .

2. AUX inoperativeSymptom Check Point Cause & What to Do

~~----------12. Defective power supply section (F-1s00)-1. Both channels inoperative~--2-2. One channel inoperativeL 1) Land R-ch will be operative whenMODE switch is pushed in (It's MONO position)---13. Imperfect contact of SELECTORswitchS702a (S702b)2) R-ch will be inoperative when MODE switch ispushed in ~--------------___,,____-14. Defective TROs(TR06) on F-1s01

15. Imperfect contact of TAPEMONITORswitch S01,S02,MODE switch S03Defective BALANCEvolume VR01Imperfect contact of SELECTORwitchS702a (S702b)

18. Imperfect contact of SPSELECTORswitchS701a (S701b)

--19. Defective F-14993. PHONO inoperative3-1. Both channels inoperative -20. Defective power supply section (F-1s00)3-2. One channel inoperative

L__1) Reverse the output cords of Land R-ch fromturntable

1-1) Inoperative channel reverse----~-1---21. Imperfect contact of the output cord22. Defective turntable

1-2) Inoperative channel not reverse 23. Defective TR01,TR03(TR02,TR04)on F-1s0124. Imperfect contact of SELECTORswitch

S702a (S702b)

5-3. Troubleshooting on Tuner Section1. Both FM and AM inoperative (PHONO operative)1-1. Both channels inoperative

~1) +13.2V not supplied to terminal 1 9 , W , [ ] on F-1491--1. Defective power supply section (F-1s00)L_2) +13.2Vnot supplied to terminal 1 9 , [ E J on F-1491 2. Imperfect contact ofSELECTORwitch S702d

1-2. One channel inoperativeC1) AM section inoperative'-------------3. Defective SELECTORswitch S702a (S702b)

2) FMsection inoperative~-----------,----4. Defective SELECTORswitch S702a (S702b)5. Defective TR12,TR13on F-14916. Defective Low Pass Filter L.P.F.01

2. FM Section*Before check, set MUTING switch to OFF (Pushed in)

2-1. FMinoperative onlyL_,) Tune FMsignal or FMbroadcasting station

1-1) Signal meter operative-------~-7. Defective CF01,CF02on F-1491(Interstation noise too low compared --8. Defective FET01,TR01-TR03 on F-1491with proper unit) 9. Defective TROs,TR06on F-1491

10. Defective L01-L03 on F-1491*to page 12


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Symptom Check Point Cause & What to Do*fro m page 11

L__1-2) Signalmeter inoperative-------~C-----'11.12.n

t=14.15.

Defective T01,T02on F-1491Defective IC01on F-1491Defective T03,T04on F-1491Defective IC02on F-1491Defective D01,D02on F-1491

2-2. Signalmeter inoperative----------------.,----16. IF,RFout of adjustment on F-1491(FMbroadcasting sound can be heard) Defective TR07,TR08on F-1491

18. Defective T05,T06on F-1491Defective D03,DOSon F-1491Defective VR02on F-1491

21. Defective signal meter2-3. Muting circuit inoperative----------------,~--22. Defective TR09-TR11 on F-1491

(Signalmeter operative) 23. Defective TR14,TR15on F-149124. Defective 004 on F-149125. Defective VR03on F-149126. Imperfect contact ofMUTINGswitch S0

2-4. No channel separation on FMstereo broadcasting*Confirm that SELECTORwitch is set to FMAUTO*Confirm signal meter operates

1) Indicator lamp not lighted------------.----27. Defective the indicator lamp PL70128. Defective TR16on F-149129. Defective T11on F-149130. Defective IC02on F-149131. Defective VR04for indicator lamp on

F-149132. Defective VR05for FMstereo separation

on F-149133. Defective F-1500

2) Indicator lamp lighted-------------.34. Defective TR16on F-14913. AM Section

AM inoperative~1) Interstation noise changes by touching the terminal

[ Q ] on F-1491

[

1-1) Increase ~35. Defective bar antenna36. Defective TR20on F-149137. Defective T11on F-149138. Variable capacitor shorted

1-2) No change--------------,--.39. Defective D07 on F-149140. Defective TR17-TR19 on F-149141. Defective T07-T09 on F-1491

3-2. Distortion------------------------,--42. Defective 006, 007 on F-149143. IFout of adjustment on F-1491

3-3. Signalmeter inoperative---------------,~-44. IF,RFout of adjustment on F-1491(AMbroadcasting sound can be heard) 45. Defective TR25on F-1491

46. Defective 007, 008 on F-149147. Imperfect contact of VR01on F-1491

--48. Defective signal meter

3-1.

12


16/34

__ 661

6. PARTS LOCATIONS AND PARTS LIST6-1. F-1S01 Pre Amplifier Circuit Board (Stock No. 7550530 Complete Circuit Board F-1501)C onductor S ide

P a rts L istParts No. Stock No. Description Position Parts No. Stock No. Description Position

0306070, 1 2SC1313 (F, G) Cll 0600107 0.01 pF 1 Bor or C12 0600107 O.Ol/1F lATR01 0306011,2 2SC 1222 (E, F) 1 B 5% 5 0 V M.CC13 0600276 0.0027 pF 1 Bor or0305880, 1 2SCl 000 (GR, Bl) C14 0600276 0.0027 (IF lAj 0306070,1 2SC1313 (F, G) C15 0519103 0.47PF} 1 B5 0 V E.Cor or C16 0519103 0.47 flF lATR02 1 0306011,2 2SC1222 (E, F) 1 A C17 0620471 470PF} 2 Bor or C18 0620471 470pF 5% 5 0 V P.C 2 B0305880,1 2SCl 000 (GR, Bl)J 0306070, 1 2SC1313 (F, G) C19 0600227 O ' ' ' ' I ' F ) 2 Bor or C20 0600227 0.022pF + % 2B

TR03 1 0306011,2 2SC 1222 (E, F) 1 B C21 0601228 0.22pF - 5 0 5 0 V M.C lCor or C22 0601228 0,22/lF 2C0305880,1 2SCl 000 (GR, Bl) Transistor C23 0660100 10PF} lCJ 0306070,1 2SC1313 (F, G) C24 0660100 10pF 5 0 V CC lCor orTR04 1 0306011,2 2SC1222 (E, F) lA C25 0519103 0.47/lF} 1,2Cor or C26 0519103 0.47/lF 5 0 V E.C 2C0305880,1 2SCl 000 (GR, Bl) C27 0600276 0.0027 (IF 1,2CJ 0306070,1 2SC1313(F,G) C28 0600276 0.0027 (IF 2Cor or C29 0600157 0.015/lFTR05 1 0306011,2 2SC1222 (E, F) lC 2Cor or C30 0600157 0.015pF 2C

0305880,1 2SCl 000 (GR, Bl) C31 0600277 0.027 {IF 2D! 030"'0, I 2SC1313 (F, G) C32 0600277 0.027 flF 5% 5 0 V M.C 2Dor or C33 0600158 0.15f1F 2DTR06 0306011,2 2SC 1222 (E, F) lC C34 0600158 0.15{1F 2Dor or0305880,1 2SCl 000 (GR, Bl) C35 0600686 0.0068!lF 1 DC36 0600686 0.0068/1F 2D

COl 0573159 1.5,uF} lC C601 0514101 100flF} lCCO2 0573159 2 5 V T.C C602 0514101 1 0 0 f l F 3 5 V E.C lC,5f1F 1AC03 0660330 33pF 1 BC04 0660330 33pF lA ROl 0107563 56kD 1 1 BC07 0660151 150pF 5 0 V CC R02 0107563 56kD lABC08 0660151 150pF 1A R03 0107222 2.2kD f 5 % l~ W CR. 1 BCC9 0510101 100/1F} 1 B R04 0107222 2.2kD lAClO 0510101 1 0 0 f 1 F 6 . 3 V E.C. 1A R05 0107104 100kD 1 B

13


17/34

c2SC1000 2SC1222VE C B

2SC1313

~B C E

Parts No. Stock No. Description Position Parts No. Stock No. Description Position

R06 0107104 100kO 1A R40 0107474 470kO 2DR07 0107821 8200 1 B R43 0107272 2.7kO 1.2 DR08 0107821 8200 1A R44 0107272 2.7kO 2DR09 0107224 220kO 1 B R45 0107472 4.7kO 2DRIO 0107224 220kO 1A R46 0107472 4.7kO 2DRll 0107472 4.7kO 1 B R47 0107472 4.7kO 5 W \I"W C.R. 1 DRI2 0107472 4.7kO 1A R48 0107472 4.7kO 2DRI3 0107331 3300 1A R49 0107824 820kO 1.2 DRI4 0107331 3300 1 A Rso 0107824 820kO 2D. . . . RI5 0107394 390kO 1 B R601 0107101 1000 1CRI6 0107394 390kO 1A R602 0107101 1000 1CR17 0107273 2nD 1 B VROl,02 1010950 250kO (MN) 2C1 RI8 0107273 27kO 1A VR03, 04 1010920 250kO (B) x 2 Variable 2 BRI9 0107104 100kO 1 B VR05, 06 1010960 100kO (A) x 2 Resistor 2CR20 0107104 100kO 1A VR07,08 1010960 1OOkO (A) x 2 2D

J R21 0107681 6800 1 A. BR22 0107681 6800 1A SOl 1130770 1 2AR23 0107103 10kO 5 % )i W C.R. 2A S02 1130770 2AR24 0107103 10kO 2A S03 1130770

fPushSwitch (5 Stage) 2A

R2S 0107183 18kO 2A S04 1130770 2BR26 0107183 18kO 2B S05 1130770 2DR27 0107331 3300 2C S06 1130780 PushSwitch (1 Stage) 2AR28 0107331 3300 2CR29 0107105 1M O 1CR30 0107105 1MO 2CR31 0107472 4.7kO 1CR32 0107472 4.7kO 1CR33 0107471 4700 1C =Abbreviations=R34 0107471 4700 1C Bi-Polar ElectrolyticR3S 0107224 220kO 2C C.R. Carbon Resistor BP.E.C.:S.R. Solid Resistor CapacitorR36 0107224 220kO 2C Ce.R. Cement Resistor C.C. Ceramic CapacitorR37 0107123 12kO 1 C. D M.R. Metallized Film MLC. Mica CapacitorR38 0107123 12kO 2C . D Resistor O.C. Oil CapacitorR39 0107474 470kO 2D M.C. Mylar Capacitor P.C. Polystyrene Capacito

E.C. Electrolytic Capacitor T.C. Tantalum Capacitor

1


18/34

661

6-2. F-1491A Tuner Circuit Board (Stock No. 7520730 Complete Circuit Board F-1491A)Conductor Side

Parts ListParts No. Stock No. Description Position Parts No. Stock No. Description PositionTRoT 0305801,2 2SCl 047 (B, C) lA CO2 0657102 O.OOl,uF} ~~~% lATR02 0305790, 1 2SC930 (C, D) lA C03 0657223 0.022,uF 50Y c.c. lATR03 0305790, 1 2SC930 (C, D) 1A, B C04 0660221 220pF 10% 50Y c.c. lATR05 0306112,3 2SC738 (C, D) 1 B C05 0669019 18pF 5% 50Y c.c. lATR06 0306112,3 2SC738 (C, D) 1 B C06 0657223 0.022,uF ~~~% 50Y C.c. lATR07 0305942,3 2SC71 0 (C, D) 2B C07 0669005 8.2pF 0.25pF 50Y c.c. lATR08 0305942,3 2SC710 (C, D) 2C C08 0657223 :+:~~%TR09 0305732,3 zsc z n (F, G) 1,2C 0.022,uF 50Y c.c. lATRTO 0305732,3 2SC711 (F, G) 1,2C C09 0669306 22PF} lACTO 0669019 18pF s% 50Y c.c. 2ARll 0300291,2 2SA678 (6, 7) Transistor 2CTRT2 0306141,2 2SC1362 5 (7, 8) 2D Cll 0657223 0.022,uF} 1ATRT3 0306141. 2 2SC1362 5 (7, 8) 1,2 D CT2 0657223 0.022,uF ~~~% SOY c.c. 1ATR14 0306131. 2 2SC1364 (6,7) 2D C14 0657223 0.022,uF 1ATR15 0306131. 2 2SC1364 (6, 7) 2D C15 0669203 2.7pF 0.25pF 50Y c.c. 1ATR16 0300221 2SA562 (Y) 2D C17 0664100 10pF 0.5pF 50Y c.c. lATR17 0305992 2SC403C (4) 1. 2 B Cl8 0669019 18pF 5% 50Y c.c. 2ATR18 0305992 2SC403C (4) 1. 2 B C19 0664100 10pF 0.5pF 50Y c.c. 1A, BTR19 0305991 2SC403C (3) 1,2C C2l 0657223 0.022,uF l 1 BTR20 0305991 2SC403C (3) 2B C22 0657223 0.022,uF 1 BC23 0657223 0.022,uF +80% 1 B50Y c.c.001 0311060 IN" I lC C24 0657223 0.022,uF J -20 0 1 B002 0311060 lN60P lC C25 0657223 0.022,uF 1 B003 0310400 lN34A 2C C26 0657223 0.0221'F 1 B, C004 0340090 DS430 Diode 1,2C C27 0657223 0.022,uF l lC005 0340090 D5


19/34

2SA562 3SK391N34A1N60P OS430

i f ? fE C B

3 42 1

L Drain2. Gate 23. Gate 14. Source andCase

Parts No. Stock No. Description Position Parts No. Stock No. Description Position

C39 0512101 100f'F 16V E.e. C73 0657473 0.047 {IF1 2 BC40 0657223 0.022,IIF ~~g% 50V e.e. 1.2C C74 0657223 0.022/IF . +80% 50V e.e. 2 BC41 0601108 0.1{IF IO% 50V M.e. 2C C75 0657223 0.022f1F [20 2 BC42 0573159 1.5pF 25V T.e. 2C C76 0657473 0.047 pF lB. CC43 0510101 100/IF 6.3V E.e. 2C C77 0513479 4.7 pF 25V E.e. 2CC44 0629001 6800pF 5% 50V P.e. I D C78 0512100 10flF 16V E.e. 2 BC45 0515339 3.3f1F} ID C79 0601108 0.1pF IO% 50V M.e. ICC46 0515339 3.3/IF 50V E.e. 2D C80 0657473 ,,,,,, ) 2C' . 1 ' " C47 0512100 10pF 16V E.e. 1.2D C81 0657223 0.022flF 2CC48 0519102'3/" l 2D C82 0657223 0.022flF ~~g% 50V e.e. 2CC49 0515339 3.3pF 2D C83 0657223 0.022pF 2C50V E.e.C50 0515339 3.3f1F I D C84 0657223 0.022pF 2CC51 0519102 3.3f1F 2D C85 0901476 0.0047 flF IO% 50V M.e. 2CC52 0600187 0.018flF} 5% 2D C86 0657223 0.022f1F ~~g% 50V e.e. 2C50V M.e.C53 0600187 0.018pF 2D C87 0601107 0.0 IpF IO% 50V M.C. 2CC54 0600826 0.0082PF} 5% ID C88 0657223 0.022pF :::~g% 50V e.e. 2CC55 0600826 0.0082f1F 50V M.e. 2D C89 0601477 0.047 pF IO% 50V M.e. 2CC56 0620221 220pF 5% 50V P.e. 2D C90 0573108 0.1f1F 25V T.e. I DC57 0657223 0.022pF ~~g% 50V e.e. 2 B C91 0664100 10pF 0.5pF 50V e.e. I B

C58 0515339 3.3f1F 50V E.e. 2BC59 0660150 15pF IO% 50V e.e. 2B CF01 0910150 SFHO.7MA } Ceramic Filter I BC60 0657473 0.047 PF} :::~g% 50V e.e. 2B CF02 0910150 SFE-IO.7MA I BC61 0657473 0.047 pF 2BC62 0620361 360pF 5% 50V P.e. 2B T01 4235890 TKAC-22919PQI} IAC63 0660150 15pF IO% 50V C.e. 2 B T02 4235900 TKAC-22918N FM IFCoil I A, BC64 0601107 O.OII'F} IO% 50V M.e. 2B T03 4235750 MTKAC-21238QAS \FM ICC65 0601107 O.OlflF 2B T04 4235760 MTKAC-21229SBS {Discriminator ICC66 0657223 0.022flF :::~g% 50V e.e. 2B T05 4235770 TKAC-21399HB } 2B,CC67 0512100 10flF 16V E.e. 2B T06 4235780 TKAC-21400HB FMMeter Coil 2CC68 0657473 0.047 flF :::~g% 50V e.e. 2 B T07 0910180 YFL-455E2 Ceramic Filter 1. 2 BC69 0660150 15pF IO% 50V C.C. 2 B T08 4230610 455kHz (Black) }AM IF Coil 1,2 B CC70 0657473 0.047 flF} :::~g% 50V e.e. 2B T09 4230500 455kHz (Blue) 1.2CC71 0657473 0.047 flF I B TlO 4220380 3-304523 AM OSC Coil 2 BC72 0660470 47pF IO% 50V e.e. 2B Til 4240720 19kHz MPXCoil I C, D

to be continue16


20/34

__ 661

F -1491 A P ar ts L istParts No. Stock No. Description Positionarts No. Stock No. Positionescription

27kO} 5 %5600330kO} + 5 %4.7kO _: ~ ~ g l5 %5.6kO3.3kO3.3kO 5 %5.6kO150027kO3900180kO3.3kO 5 %3.3kO3.3kO3.3kO3.3kO180kO10kO} 5%2205600}330kO 5 %lkO1 ~ ~ m )5%

22kOlkO

390010kOlkO 5 %

4.7kO12006800lkO 5 %

120kO)15kO 04.7k0 5 %lkO

2200}8.2kO 5 %10004.7kO} 5 %15kO! ~ ~ g )5 %15kO _ 04.7kO10kO} 5 %1000IkO 5 %

R58R59R60R6lR62R63R64R65R66R67R68R69R70R7lR 7 2R73R74R75R76R nR79R80R8lR82R a 3R 8 4R85R86R87R a 8R89R90R9lR 9 2R93R94R96R97R98R99RIOORIOIRl02Rl03Rl04R105Rl06R107R108Rl09RnoRIllRl12

0106273010612101073340107472010639101063320106562010633201073320106562010615101062730106391010618401063320106332010633201063320106332010618401071 030107220010656101063340106102010722101071230107122010722301071 0201063910106103010610201064720106121010668101071020106124010615301064720106102010722101078220107101010647201061530106561010647101061530106472010710301071010106102

LOI 4200570L02 4210200L03 4220400L04 4290110L05 4290010L06 4290010LCOl 424071 0LPFol 0910220

X W C.R. 1,2 D(E.L .R.) I D

X W C.R. I DI D2DX W C.R. 2 D

(E.L .R.) 2 D2DXw C.R. 2 D2D1 D1.2DI D2DX W C.R. 2 D(E.L .R.) 2 D2D2D2D2D

Xw C.R. 1,2 D2B1. 2 BXw C.R. 1,2B

(E .L .R.) 2 B2B2BX W C.R. 2 B2BI B1,2 B2BX W C.R. 2 B

(E.L .R.) 2 B

FM Antenna Coil I AFM RF Coil I A

3-3046703-304671FM OSC Coil I APeaking Coil3.5pH Peaking Coil 2 A3.5pH Peaking Coil

MPX Coil I DBl-14 low Pass Filter 2 D

VC01-05 1220150 Variable Capacitor 2 AROI 0107124R02 0107101R03 0106222R04 0106124R05 0107102R06 0107153R07 0107221R08 0106224R09 0107221RIO 0106473R11 0106121Rl2 0106102Rl3 0106682R14 0106152R15 0107222R16 0106390R19 0106102R20 0106221R21 0106152R22 0106332R23 0106102R24 0107561R25 0106560

120kO} + %1000 _ 5 02.2kO} 5 %120kOIkO}15kO 5 %

2200220kO 5 %

~w C.R. : ~~W C.R. I A(E .l .R .) 1 A

I A~W C.R. I AIA

~W C.R. I A( E . l oR .)~W C.R. I A200 5 %47kO 11200IkOf 5 %6.8kO

1.5kO2.2kO 5 %3901kO2200 5 %

1.5kO J3.3kOlkO

5600 5 %590 5 %

IAIA~w C.R. I A

(E.L.R.) I A1 A~w C.R. I AI BI B~w C.R. I B

(E.L .R.) I BI BI B~w C.R. I B~w C.R. I B(E.L.R.)

~w CR. ::I B

2B1. 2 B

220}1.5kO 5 %3 . ~ ~ g ) 5 %TkO560220 5 %1800} 5 %6801000 5 %5.6kO} 5 %2200220} 5 %4.701000 5%6.8kO rIkO 5 %IkO

6.8kO 5 %TkO 5%

15kO 1IMO l+ 5 %560 f47kO4.70 5 %68kO} 5 %IkO~ ~ ~ m5 %47kO 5 %

R26 0107220R27 0107152R28 0106332R29 0106102R30 0106102R31 0106560R32 0107220R33 0106181R34 0106680R35 0107101R36 0106562R37 0106221R38 0107220R39 0107479R40 0107101R4l 0106682R42 0106102R43 0106102R44 0106682

Xw C.R. 1,262B2BX W C.R.(E.L.R.)~W C.R. I B(E .l .R .) I 6

I 6~W C.R. 16~W C.R. 16

(E.L .R.) I B , C~W C.R. 16, C~W C.R. IC

(E.L.R.)

2B262B,C26,C26,ClC2CIC

Xw CR.Xw C.R.(E.L.R.)

lC 1.2C2C2C2C2CIC

X W C.R.(E.L.R.)C.R. I ClC> ~ w C.R. 1 C ;1.w C.R.CICIC

%W C.R.(E.L.R.) ;1.w C.R.(E.L.R.)

;1.w C.R.;1.w C.R. 2C(E.L.R.);1.w C.R. 2C

;1.w C.R. 1 C(E.L.R.)%W C.R. lC4.70 5%10kO 5%Rl13Rl14 01074790106103R45 0107102

R46 0106153R47 0106105R48 0106560R49 0106473R50 0107479R51 0106683R52 0106102R53 0107472R54 0107221R55 0106473

lC 2.2kO 5 %~ ~ ~ g l5 %470010kO

R115Rl16Rl17R n 8Rl19R120VROIVR02VR03VR04VR05501

010722201062210106473010610001064710106103103515010351501035190103519010350701110240

~w C.R. I C(E.L .R .) I C 2C2C;1.w C.R. 26

(E.L .R.) I A2C

2C%W C.R. 2C%W C.R. 2C(E.L .R .) 2 D

%W C.R. 2C, D2C, D;1.w C.R. I D(E.L.R.)22kO (B)22kO (B) . .IOOkO (B) Seml-vana~leI OOkO (6) ReSIStor

I kO (B )Slide Switch

2C2DI C, DI DI D.7kO} + _ 5 % 0 !/W C 1. 2 D3.9kO /4 .R. 2 DR56 0107472R57 0107392

17


21/34

6-3. F-1499A Driver Circuit Board (Stock No. 7570800Complete Circuit Board F-1499A)Conductor Side

A 25A640 25C281

.~E

8E C

05-430 RO-8_2

7 + +Parts ListParts No. Stock No. Description Position Parts No. Stock No. Description Position

TRol 0300303,5 25A640 (K, L) 26 Cll 0660100 10PF} 10% 1 650V e.e.TR02 0300303,5 25A640 (K, L) 2A CI2 0660100 10pF 1ATR03 0300303,5 25A640 (K, L) 26 CI3 0515101 100/iF} 2650V E.e.TR04 0300303,5 25A640 (K, L) 2A CI4 0515101 100pF 2ATR05 0305901,2 25Cl124 (2, 3) 1 6 CI7 0657473 0.047 PF} 26" 50V C.e.TR06 0305901,2 25Cl124 (2, 3) Transistor 1A CI8 0657473 0.047 pF 2ATR07 0305121,2 25C281 (6, C) 1 6 C21 0601108 0.1PF} 2650V M.e.TR08 0305121,2 25C281 (6, C) 1A C22 0601108 0.1 pF 2ATR09 0305900, 1 25Cl124 (1, 2) 26 ROlTRlO 0305900, 1 25Cl124(1,2) 2A 0107104 1 O O k O 1 26TRll 0300390,1 25A706 (1, 2) 26 R02 0107104 100kn 2ATRI2 0300390, 1 25A706 (1, 2) R03 0107222 2.2kn 262A R04 0107222 2.2kn 2ADOl 0340090 05-430 I 1 6 R05 0107104 100kn 1 6D02 0340090 05-430 1A R06 0107104 100kn 5% 7f,w e.R. 1AD03 0340090 05-430 f Diode 1 6 R07 0107223 22kn 1 6D04 0340090 05-430 1A R08 0107223 22kn 1Azo 0316210 RO-8.2E (6)} 1 6 R09 0107683 68kn 1 6Zener DiodeZD02 0316210 RO-8.2E (6) 1A RIO 0107683 68kn 1A

Rll 0107103 10kn 1 6COl 0519103 0.47 PF} 26CO2 50V E.e. to be continue0519103 0.47 pF 2AC03 0660151 150PF} 26C04 0660151 150pF 50V e.e. 2A =~CAbbreviations=C05 0511221 220PF} 26C06 0511221 220pF 50V E.e. 2A C.R. Carbon Resistor BP.E.C.: Bi-Polar ElectrolyticS.R. Solid Resistor CapacitorC07 0660100 10PF} 10% 50V 1 6 Ce.R. Cement Resistor C.C. Ceramic Capacitorc.c,C08 0660100 10pF 1A M.R. Metallized Film MLC. Mica CapacitorC09 0515330 33PF} 50V 1 6 Resistor O.C. Oil CapacitorCI O 0515330 33pF E.e. 1A M.C. Mylar Capacitor P.C. Polystyrene CapacitoE.C. Electrolytic Capacitor T.C. Tantalum Capacitor

1


22/34

"661F-1499A Parts ListParts No. Stock No. Description Position

R 1 2 0107103 10kn lAR 1 3 0107100 IOn 1 BR 1 4 0107100 Ion lAR I 5 0107100 Ion 1 BR 1 6 0107100 Ion 1 AR 1 7 0107152 1.5kn 5% Y 4W CR.. 1 BR 1 8 0107152 1.5kn lAR 1 9 0107682 6.8kn 1 BR 2 0 0107682 6.8kn lAR 2 1 0107104 100kn 1 BR 2 2 0107104 100kn lAR 2 3 0107103 10kn 1. 2 BR 2 4 0107103 10kn 1.2AR 2 5 0107471 470.0, 2BR 2 6 0107471 470.0, 2AR 2 7 0107182 1.8kn 1 BR 2 8 0107182 1.8kn 1 AR 2 9 0107472 4.7kn 1 BR 3 0 0107472 4.7kn lAR 3 1 0107390 39.0, 1 BR 3 2 0107390 39.0, lAR 3 3 0107332 3.3kn 1 BR 3 4 0107332 3.3kn lAR 3 S 0107152 1.5kn 1 BR 3 6 0107152 1.5kn 5% ; . ; . w C.R. lAR 3 7 0107151 150.0, 2BR 3 8 0107151 150.0, 2AR 3 9 0107100 Ion 2BR 4 0 0107100 Ion 2AR 4 1 0107479 4.7.0, 2 BR 4 2 0107479 4.7.0, 2AR 4 3 0107221 220.0, 2 BR 4 4 0107221 220.0, 2AR 4 5 0107221 220.0, 2BR 4 6 0107221 220.0, 2AR 4 9 0107479 4.7.0, 2BR so 0107479 4.7.0, 2AR S I 0107221 220.0, 2BR S 2 0107221 220.0, 2AR S 3 0171100 Ion} 10% 2 BlW M.R.R S 4 0171100 Ion 2AV R O I 1033091 5kn (B) 1 1 BV R 0 2 1033091 5kn (B) Semi-Variable Resistor lAV R 0 3 1033051 lkn (B) f 1 BV R 0 4 1033051 1kn (B) lA

=Abbreviations=C . R .S.R.Ce.R.M.R.

Carbon Resistor BP.E.C.: Bi-Polar ElectrolyticSolid Resistor CapacitorCement Resistor C.C. Ceramic CapacitorMetallized Film Mi.C. Mica CapacitorResistor O.C. Oil CapacitorMylar Capacitor P.C. Polystyrene CapacitorElectrolytic Capacitor T.C. Tantalum CapacitorM . e .E.C.

19

6-4. F-1500A Power Circuit Board(Stock No. 7591930 Complete Circuit Board F-1500A)

Conductor SideA

Parts ListParts No. Stock No. Description Position

T R o l 0305630-2 2SCI 030 (A, B,C) lCT R o 2 0305630-2 2SCI 030 (A , B,C) lAT R o 3 0305630-2 2SCI 030 (A , B, C) 1 B, AT R o 4 0305630-2 2SCI 030 (A, B,C) i T ,"""",0 1 A, BT R o s 0305981,2 2SC875 (E, F) 2AT R o 6 0308361,2 2SD330 (D, E) 2AT R o 7 0306131,2 2SCI364(6,7) 2 A, BT R o 8 0306131. 2 2SCI364(6,7) 2 A, B

D O l 0310680 10DC-l 2B,CD 0 2 0310680 10DC-l 2B,CD 0 3 0310670 10DC-I (R) 1.2CD 0 4 0310670 10DC-l (R) 2CD o s 0310340 10D-l 2 BD 0 6 0310340 10D-l Diode 2BD 0 7 0310340 10D-l 2 B008 0310340 10D-l 2AD 0 9 0310400 lN34A 2AD lO 0310400 lN34A 2AD ll 0310400 lN34A 2A0 1 2 0310400 lN34A 2AZ D O I 0316310 RDI3E(B) } Zener Diode 2AZ D 0 2 0315420 RD24A-N 2A


23/34

B 2SC1364

~2SC1030I~\

B I~r.\r : -# .C + v r /C

10DC-l

llr100-1Parts No. Stock No. Description Position Parts No. Stock No. Description Position

COl 0659011 O.OlpF 500V C.e. 2C R07 0107823 82kD 2 B~ CO2 0549004 1000,uF 35V E.e. 2A, B ROB 0107223 22kD 2 BC03 0515470 47 PF} 2A R09 0107473 47'D 1,2A50V E.C. 5% l!4W c . e .C04 0515470 47pF 2A RIO 0107473 47kD 1,2A

C05 0513101 100pF 25V E.e. 2A Rll 0107332 3.3kD 1,2AC06 0512101 100,I1F 16V E.C. 2A RI2 0107332 3.3kD 1,2AC07 0515330 33pF 50V E.e. 2B RI3 0103100 10D} 2ACO B 0510221 2 2 0 f l F 6.3V E.e. 2B RI4 0103100 10D 5% Y z w e.R. 2AC09 0515109 IpF 50V E.e. 2A RI5 0132338 0.33D l ICCIO 0535109 I f l F 50V BP.E.C. 2A RI6 0132338 0.33D 1 A2 W Ce.R.Cll 0530470 47pF 6.3V BP.E.C 2A RI7 0132338 0.33D J 1 BCI2 0601108 O.IPF}

10%2A RIB 0132338 0.33D I B

CI3 50V M.e. 1,2A0601108 0.1 flFCI4 0657473 0.047/lF} 2A RYol 1150250 MY2-0 Relay 2ACI5 50V e.e. 2A0657473 0.047 f lFCI6 0549006 3300PF} 2C FOl 0433630 l 1,2CCI7 35V E.e. 2C F02549006 3300pF 0433630 4A Quick Acting Fuse 1,2CC21 0515109 l,uF} F03 0433630 f 1,2C50V E.C.C22 0515109 lfiF F04 0433630 1,2C

F05 0432900 5A Wired-in Fuse 2BROl 0132820 82D 2W Ce.R. 2A F06 0432820 0.8A Wired-in Fuse 2BR02 0107122 " ' 0 ) 2A F07 0432850 2A Wired-in Fuse 2BR03 0107332 3.3kD 2A FOB 0 4 3 2 8 5 0 2A Wired-in Fuse 2BR04 0107122 1.2kD 5 % Y 4 w c . e . 2A 2 4 2 0 1 7 0 I 8P Connector I BR05 0107332 3.3kD 2A 2260010 Test PinR06 01 071 00 10D 2B

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661

6-5. Other Parts (Front Side)Pa rts L is tParts No. Stock No. Description

51011652 51861103 51011654 51861105 51011656 51861107 51011658 51861109 572683010 53177201112 532641013 531774014 531774015 531774016 531782017 53177201819 53177302021 532641022 510254323 510254324252627282930313233343536373839404142434445464748495051525357585960616263

{53089405407540510104351010435101043510104350476905308900710608369060311130350

Binding Head Screw, M4 X 14Plain Washer, 41Binding Head Screw, M4 X 14Plain Washer, 41Binding Head Screw, M4X 14Plain Washer, 41Binding Head Screw, M4 X 14Plain Washer, 41Wood BonnetL-l Type Knob, SPEAKERSHex. Nut. M9Push ButtonS-3 Type Knob, BASS volumeS-3 Type Knob, TREBLEvolumeS-3 Type Knob, BALANCE volumeT-6 Type Knob, TUNINGL-l Type Knob, VOLUMEHex. Nut, M9M-3 Type Knob, SELECTORHex. Nut, M9Push ButtonFlat Countersunk Head Screw, M3 X 6Flat Countersunk Head Screw, M3 X6Front PanelDial ScaleBinding Head Screw, M3X6Binding Head Screw, M3 X 6Binding Head Screw, M3 X 6Binding Head Screw. M3X6Smoked PlateFrame, smoked platePush Button, POWER switchSpring, POWER switchPosh Switch, POWERHex. Nut, M9Plain Washer, 91Headphone JackSpacer Nut, M9Plain Washer, 91Rotary Swi tch Y-1-4-4 , SPEAKERSPush SwitchHex. Nut, M8Plain Washer, 81100kn (B)X 2 BASS VolumeHex. Nut, M8Plain Washer, 81100kn (B) X 2 TREBLEVolumeHex. Nut, M8Plain Washer, 81250kn (MN) BALANCE VolumeSpacer Nut. M8Plain Washer, 81250kn (B) X 2 VOLUMEPuse Switch (5 Stage)Spacer Nut, M9Rotary Swi tch Y-2-5-4 , SELECTORTuning Ass'yDial PointerBinding Head Tapping Screw. M3X8Binding Head Tapping Screw. M3 X 8Holder. s ignal meter

21

24302005236481

11014701130780

1010960

1010960

10109505236451

101092011307705236481110252070363805416361510912251091225269330

Parts No. Stock No. Description64 0420040 Fuse Type Lamp (7V 300mA)65 7726050 Meter Lamp Ass'y66 4300610 Signal Meter67 0400300 Lead Type Lamp (7V 1OOmA), STEREO

Indicator68 5109122 Binding Head Tapping Screw, M3 X 869 5109122 Binding Head Tapping Screw, M3XB70 0420040 FuseType Lamp (7V 300mA)71 5058150 I lluminator Box72 5109122 Binding Head Tapping Screw, M3 X 873 5109122 Binding Head Tapping Screw, M3 X 874 5269350 P.C.B Holder75 5101161 Binding Head Screw, M4 X 676 5101161 Binding Head Screw, M4 X 677 5101165 Binding Head Screw, M4 X 1478 5516911 Rubber Foot79 5101165 Binding Head Screw, M4X 1480 5516911 Rubber Foot81 5058120 Bottom Plate


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__ 661

6-6. Other Parts (Top Side)

R7Dl-R:7~1-------~~------~=-~--~--~~'J02

Top Side Parts ListParts No,. Stock No. Descr,lpt'lon Par-h, No. Stock No. Doscrlpt,lon

T7QI 4290021 75!l: 300n FM Solun

PTol 4001380 Pow", Tron


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6-7. Other Parts (Bottom Side)

Bottom Side Parts ListParts No. Stock No. Description

TRol 0305630-2 2SCI 030 (A. B,C) lTRo2 0305630-2 2SC 1030 (A. B. C)TRo3 0305630-2 2$Cl 030 (A. B. C) f TronslsrorTRo.1 0305630-2 2SCI 030 CA.B . C)CIOI 0659802 0.OO47/,F 1.4KV M.e.R z o s 0171471 470!1} 10%R7o.! 0171471 470(1 lW Ce.R.

F70l { 0431270 4A Power Fuse (100-117V)0431250 2.5A Power Fuse (200-24OV)2300060 Fuse Holder

)01 2430020 Heodphone Jock3800020 Power Cord2230050 Ground Terminal

=AbbrevlationsC.R.S.R.Ce.R.M.R.

Carbon ResistorSolid ResistorCement ResistorMetallized Film

BP.E.C.: BiPolar ElectrolyticCapacitor

M.C.E.C.

Mylar CapacitorElectrolytic Capacitor

C . C .MI.C.O . C .P . C .T.C.

Ceramic CapacitorMica CapacitorOil CapacitorPolystyrene CapadtofTanlal um Ca cac Itor

Resistor


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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7. SCHEMATIC DIAGRAM OF TUNER SECTION

AO---~ TRo52SC738(C.O) TR,.2SC738(C.O)

A,

,,I' L_ '/~/_~-A~_~_~ ~~~~ __--.~ J11

11

TRo2 032SC930

11

111L__

C 11

1/,

111,I1

11I

1I/

111

/ TRw/ 2SC403C(3)

1 / ~ J T " @ " 6 T 8 ,/ ~ J ~;'1 1

/ R"8'0 I_ _ _ _ --< rR '---- J'---_-QQ~ __

S

TR /62SA!S62(Y

Np

P L7 02 5V 60 .mA


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* Design and sepecif lcations subject to change without not ice for improvements.

TP2 tcs,TA-7061 IN60P

TR,4,J52SCI364(6,7)

TR /62SA562(Y)

TR!?132SCI362(7,S)

K

CAPAC ITOR@ MyLar Tantalum81 StyroLl ::. Ceramic

TP 3

N

o

/1

EU Mor;ieC onLy

7/7V

V O LT A GE S E LE C T OR

21II 22I [ ' A N ( ' C /6I ,NGE-- -=---0/7I B~0W',

1

' ( : : : - ~ , : :-'~ __~ ~__~ -, --Q 9

/.4AV

15


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__ 661

8. SCHEMATIC DIAGRAM OF AUDIO SECTION

R- - - - - - - r , T 1 A r : . : - - - -

2SCI313tR)F.GTRo/.OJ2SCI313(R)F,G"",,00

II

I ~ IL .JLA > f o


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* Design and specifications subject to change without notice for improvements.

?R OI,032SA640(K,L)Rn!50

TRos TR,!2SCI124-2,3 2SA706-3U,21

T R ( ) , J O ; P l2SCI030 ..A,B,C)X2~--~~~~----------~~----~--~~2m7~V~--TRo t

r-


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9. PACKING LISTParts No. Stock No. Description

9017330 Inner Packing (upper)2 9027770 Stylofoam Packing3 9007530 Carton Case

10. ACCESSORYPARTS LISTParts No. Stock No. Description

9406020043363092079009227900

Polishing Cloth4A Quick Acting FuseOperating InstructionsOperating Instruction Sheet

11. MAINTENANCE11-1. Voltage AdjustmentThe Voltage Selector on the rear panel enables you to

operate at correct voltage in any areas. The voltage hasbeen preadjusted at the factory, but can be easilychanged as follows, in compliance with to the linevoltage using in your area.1) Remove the two screwse securing the name plate onthe unit's rear panel, then remove the name plate.

2) Unplug the Voltage Selector plug once, and reset itso that the arrow mark on it faces the correct voltageindication. Also change the power fuse when thepower supply voltage has changed. For 100/117 voltoperation, use a 4-ampere glass-tubed fuse. For 220/240 volt operation, use a 2.5-ampere one.

Note: The Voltage Selector can be used to eliminatethe trouble caused !by the considerable voltagefluctuation. In this case, it should be set to thepeak voltage.l00V 240V2 C W O V 1 1 7 V g @

2 lOOY

240~117Y@ g 220V lOOY

117V 220V

@ 2g~Cl5 220Y lOOY

~7g ( )220y lOOY

26


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SANSUI ELECTRIC CO., LTD.14-1, 2-chome, Izumi, Suginarni-ku, Tokyo 168, Japan.TELEPHONE: (03) 323-1111/TELEX: 232-2076

SM009 Printed in Japan (l4050M)

Sansui 661 Service Manual

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Transcript of Sansui 661 Service Manual