GB
CLASS 1LASER PRODUCT
MC230/21M/22/25/30
TABLE OF CONTENTS Page
Location of pc boards & Version variations ................1-2
Technical Specifications .............................................1-3
Measurement setup ....................................................1-4
Service Aids, Safety Instruction, etc. ..........................1-5
Disassembly Instructions & Service positions .............. 2
Service Test Programs ...............................................3-1
Set Block diagram ......................................................4-1
Set Wiring diagram .....................................................5-1
Power Board .................................................................. 6
Key Board ...................................................................... 7
Main Board .................................................................... 8
Displsy Board ................................................................. 9
Set Mechanical Exploded view & parts list ................. 10
Revison List ................................................................. 11
© Copyright 2003 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system ortransmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise withoutthe prior permission of Philips.
Published by SL 0440 Service Audio Printed in The Netherlands Subject to modification
Micro System
3141 785 30021
Version 1.1
MC235/37
1-2
LOCATION OF PRINTED CIRCUIT BOARDS
/21 /22 /25 /30 /37
Aux in / CDR in x x x x xLine OutVideo OutSurround OutSubwoofer OutPower Booster OutDigital OutDigital inMatrix SurroundRDS x xNews x xDolby Pro Logic (DPL)Incredible SurroundKaraoke FeaturesVoltage Selector xECO Power Standby (LCD Display Off) x xECO6 Tuner Board - Systems Non-Cenelec x x xECO6 Tuner Board - Systems Cenelec x xUSB PC LINK
VERSION VARIATIONS:
Type /Versions: MC230 MC235
Features &Board in used:
SPEAKER BOARD
POWER BOARD
DISPLAY BOARD
KEY_A BOARD
MAIN BOARD
KEY_B
BOAR
DHEADPHONE BOARD
KEY_C BOARD
FM/AM BOARD
1-3
SPECIFICATIONS
GENERAL:Mains voltage : 120/240V ± 15% Switchable for /21
120V ± 10% for /37230V ± 10% for /22/25240V ± 10% for /30
Mains frequency: 50/60HzClock accuracy : < 4 seconds per dayDimension centre unit : 250 x 245 x 96 (mm)
Power consumptionActive : 15W for /21/22/25/37/30Standby : < 6W (DEMO mode off)ECO Power Standby : < 1W for /22/25
TUNER:FMTuning range : 87.5-108MHzGrid : 50kHz
100kHz for /21/37IF frequency : 10.7MHz ± 20kHzAerial input : 75 Ω coaxial
300 Ω for /37Sensitivity at 26dB S/N : < 22dBfSelectivity at 300kHz bandwidth : > 33dBImage rejection : > 20dB [> 25dB]Distortion at RF=1mV, dev. 75kHz : < 3%-3dB Limiting point : < 23.5dBCrosstalk at RF=1mV, dev. 40kHz : > 26dB
MWTuning range : 531-1602kHz
530-1700kHz for /21/37Grid : 9kHz
10kHz for /21/37IF frequency : 450kHz ± 1kHzAerial input : Frame aerial 18.1µHSensitivity at 26dB S/N : < 4.0mV/M [> 3.25mV/M]Selectivity at 300kHz bandwidth : > 20dBIF rejection : > 24dBImage rejection : > 20dB [> 28 dB]Distortion at RF=50mV, M=80% : < 5%
AMPLIFIER:Output powerL & R : 2 x 5W FTC (4Ω, 1kHz, 10% THD)Frequency response within -3dB : 60Hz-14kHzDigital Sound Control (DSC) : Jazz / Rock / Pop / ClassicDynamic Bass Boost (DBB) : Jazz / Rock / Pop / Classic
Input sensitivityAux in (at 1kHz) : 500mV at 600 Ω
Output sensitivityHeadphone output at 32 ohm : 15mW ± 2dB (Max. vol.)
COMPACT DISC:Frequency response within ± 3dB : 63Hz - 14kHzOutput level (in Vrms) : 500mV, Zout = 100ΩSignal/Noise ratio (A-weighted) : > 67dBADistortion at 1kHz : < 0.02%Channel unbalance at 1kHz : < ±2dBChannel separation at 1kHz : > 30dBEmphasis : 15/50 µS (switched
automatically by CD10)THD Noise(1kHz) : < 1.5%Outband Attenuation : > 35dB
[....] Values indicated are for /22/25 only.
1-4
LF Generator e.g. PM5110
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
LEVEL METERe.g. Sennheiser UPM550
with FF-filter
S/N and distortion metere.g. Sound Technology ST1700B
L
R
DUT
or Universal Test Cassette Fe SBC420 4822 397 30071
LEVEL METERe.g. Sennheiser UPM550
with FF-filter
S/N and distortion metere.g. Sound Technology ST1700B
L
R
DUT
CD
Use Audio Signal Disc(replaces test disc 3)
SBC429 4822 397 30184
Bandpass250Hz-15kHz
e.g. 7122 707 48001LF Voltmeter
e.g. PM2534DUT
S/N and distortion meter e.g. Sound Technology ST1700B
Frame aeriale.g. 7122 707 89001
Tuner AM (MW,LW)
To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).
RF Generator e.g. PM5326
Ri=
50Ω
Bandpass250Hz-15kHz
e.g. 7122 707 48001LF Voltmeter
e.g. PM2534DUT
RF Generator e.g. PM5326
S/N and distortion meter e.g. Sound Technology ST1700B
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=
50Ω
Tuner FM
MEASUREMENT SETUP
SERVICE AIDS
Service Tools:
Universal Torx driver holder .................................. 4822 395 91019
Torx bit T10 150mm ............................................. 4822 395 50456
Torx driver set T6 - T20 ......................................... 4822 395 50145
Torx driver T10 extended ...................................... 4822 395 50423
Cassette:
SBC419 Test cassette CrO2 ................................. 4822 397 30069
SBC420 Test cassette Fe ..................................... 4822 397 30071
MTT150 Dolby level 200nWb/M ............................ 4822 397 30271
Compact Disc:
SBC426/426A Test disc 5 + 5A ............................ 4822 397 30096
SBC442 Audio Burn-in Test disc 1kHz ................. 4822 397 30155
SBC429 Audio Signals disc .................................. 4822 397 30184
Dolby Pro-logic Test Disc ...................................... 4822 395 10216
ESD Equipment:
Anti-static table mat - large 1200x650x1.25mm ... 4822 466 10953
Anti-static table mat - small 600x650x1.25mm ..... 4822 466 10958
Anti-static wristband .............................................. 4822 395 10223
Connector box (1MΩ) ............................................ 4822 320 11307
Extension cable
(to connect wristband to conn. box) .................. 4822 320 11305
Connecting cable
(to connect table mat to conn. box) .................. 4822 320 11306
Earth cable (to connect product to mat or box) .... 4822 320 11308
Complete kit ESD3
(combining all above products) ......................... 4822 320 10671
Wristband tester .................................................... 4822 344 13999
1-5
HANDLING CHIP COMPONENTS
1-6
CLASS 1LASER PRODUCT
GB Warning !
Invisible laser radiation when open.Avoid direct exposure to beam.
S Varning !
Osynlig laserstrålning när apparaten är öppnad och spärrenär urkopplad. Betrakta ej strålen.
SF Varoitus !
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinanäkymättömälle laserisäteilylle. Älä katso säteeseen!
DK Advarse !
Usynlig laserstråling ved åbning når sikkerhedsafbrydere erude af funktion. Undgå udsaettelse for stråling.
F"Pour votre sécurité, ces documents doivent être utilisés pardes spécialistes agréés, seuls habilités à réparer votreappareil en panne".
GB WARNING
All ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair can reduce lifedrastically.When repairing, make sure that you areconnected with the same potential as the massof the set via a wrist wrap with resistance.Keep components and tools also at thispotential.
F ATTENTION
Tous les IC et beaucoup d’autressemi-conducteurs sont sensibles auxdécharges statiques (ESD).Leur longévité pourrait être considérablementécourtée par le fait qu’aucune précaution n’estprise à leur manipulation.Lors de réparations, s’assurer de bien être reliéau même potentiel que la masse de l’appareil etenfiler le bracelet serti d’une résistance desécurité.Veiller à ce que les composants ainsi que lesoutils que l’on utilise soient également à cepotentiel.
ESD
D WARNUNG
Alle ICs und viele andere Halbleiter sindempfindlich gegenüber elektrostatischenEntladungen (ESD).Unsorgfältige Behandlung im Reparaturfall kandie Lebensdauer drastisch reduzieren.Veranlassen Sie, dass Sie im Reparaturfall überein Pulsarmband mit Widerstand verbundensind mit dem gleichen Potential wie die Massedes Gerätes.Bauteile und Hilfsmittel auch auf dieses gleichePotential halten.
NL WAARSCHUWING
Alle IC’s en vele andere halfgeleiders zijngevoelig voor electrostatische ontladingen(ESD).Onzorgvuldig behandelen tijdens reparatie kande levensduur drastisch doen verminderen.Zorg ervoor dat u tijdens reparatie via eenpolsband met weerstand verbonden bent methetzelfde potentiaal als de massa van hetapparaat.Houd componenten en hulpmiddelen ook opditzelfde potentiaal.
I AVVERTIMENTO
Tutti IC e parecchi semi-conduttori sonosensibili alle scariche statiche (ESD).La loro longevità potrebbe essere fortementeridatta in caso di non osservazione della piùgrande cauzione alla loro manipolazione.Durante le riparazioni occorre quindi esserecollegato allo stesso potenziale che quello dellamassa dell’apparecchio tramite un braccialettoa resistenza.Assicurarsi che i componenti e anche gli utensilicon quali si lavora siano anche a questopotenziale.
GBSafety regulations require that the set be restored to its originalcondition and that parts which are identical with those specified,be usedSafety components are marked by the symbol ! .
NLVeiligheidsbepalingen vereisen, dat het apparaat bij reparatie inzijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,identiek aan de gespecificeerde, worden toegepast.De Veiligheidsonderdelen zijn aangeduid met het symbool !
FLes normes de sécurité exigent que l’appareil soit remis à l’étatd’origine et que soient utiliséés les piéces de rechange identiquesà celles spécifiées.Less composants de sécurité sont marqués !
DBei jeder Reparatur sind die geltenden Sicherheitsvorschriften zubeachten. Der Original zustand des Geräts darf nicht verändert werden;für Reparaturen sind Original-Ersatzteile zu verwenden.Sicherheitsbauteile sind durch das Symbol ! markiert.
I Le norme di sicurezza esigono che l’apparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.Componenty di sicurezza sono marcati con !
GBAfter servicing and before returning set to customer perform a leakagecurrent measurement test from all exposed metal parts to earth ground toassure no shock hazard exist. The leakage current must not exceed0.5mA.
PREPARATIONS AND CONTROLS
1-7
Pre
par
atio
ns
Rea
r co
nn
ecti
on
sT
he t
ype
pla
te is
loca
ted
at t
he r
ear
of t
hesy
stem
.
AP
ower
Befo
re c
onne
ctin
g th
e A
C p
ower
cor
d to
the
wal
l out
let,
ensu
re t
hat
all o
ther
con
nect
ions
have
bee
n m
ade.
–If
your
sys
tem
is e
quip
ped
with
a V
olta
geSe
lect
or, s
et t
he V
OLT
AG
E SE
LEC
TOR
to
the
loca
l pow
er li
ne v
olta
ge.
WA
RN
ING
!–
For
opti
mal
per
form
ance
, use
onl
y th
eor
igin
al p
ower
cab
le.
–N
ever
mak
e or
cha
nge
any
conn
ecti
ons
wit
h th
e p
ower
sw
itch
ed o
n.
To a
void
ove
rhea
ting
of
the
syst
em, a
saf
ety
circ
uit
has
been
bui
lt in
. The
refo
re, y
our
syst
em m
ay s
wit
ch t
o St
andb
y m
ode
auto
mat
ical
ly u
nder
ext
rem
e co
ndit
ions
. If
this
hap
pen
s, le
t th
e sy
stem
coo
l dow
nbe
fore
reu
sing
it (
not a
vaila
ble
for a
ll ve
rsio
ns).
BA
nte
nn
as C
on
nec
tio
nC
onne
ct t
he s
uppl
ied
MW
loop
ant
enna
and
FM
ante
nna
to t
he r
espe
ctiv
e te
rmin
als.
Adj
ust
the
posit
ion
of t
he a
nten
na fo
r op
timal
rec
eptio
n.
MW
An
ten
na
Posit
ion
the
ante
nna
as fa
r as
pos
sible
from
a T
V,V
CR
or
othe
r ra
diat
ion
sour
ce.
MW
loop
an
tenn
aFM
wire
ant
enna
AC p
ower
cor
d
Spe
aker
s(r
ight
)S
peak
ers
(left)
NO
T FO
R A
LLVE
RSI
ON
S
VOLT
AG
ESE
LEC
TOR
110V
-12
7V
220V
-24
0V
FM
An
ten
na
For
bett
er F
M s
tere
o re
cept
ion,
con
nect
an
outd
oor
FM a
nten
na t
o th
e FM
AER
IAL
(FM
AN
TEN
NA
) te
rmin
al.
CS
pea
kers
Co
nn
ecti
on
Fro
nt
Sp
eake
rsC
onne
ct t
he s
peak
er w
ires
to t
he S
PEA
KER
Ste
rmin
als,
right
spe
aker
to
" RIG
HT
" and
left
spea
ker
to "L
EFT
", co
lore
d (m
arke
d) w
ire t
o"+
" and
bla
ck (
unm
arke
d) w
ire t
o "-
".
Fully
inse
rt t
he s
trip
ped
port
ion
of t
he s
peak
erw
ire in
to t
he t
erm
inal
as
show
n.N
otes
:–
For
optim
al s
ound
per
form
ance
, use
the
supp
lied
spea
kers
.–
Do
not c
onne
ct m
ore
than
one
spe
aker
to a
nyon
e pa
ir of
+/ -
spe
aker
term
inal
s.–
Do
not c
onne
ct s
peak
ers
with
an
impe
danc
elo
wer
than
the
spea
kers
sup
plie
d. P
leas
e re
fer
toth
e SP
ECIF
ICAT
ION
S se
ctio
n of
this
man
ual.
Op
tio
nal
co
nn
ecti
on
The
opt
iona
l equ
ipm
ent
and
conn
ectin
g co
rds
are
not
supp
lied.
Ref
er t
o th
e op
erat
ing
inst
ruct
ions
of t
he c
onne
cted
equ
ipm
ent
for
deta
ils.
Co
nn
ecti
ng
oth
er e
qu
ipm
ent
to y
ou
rsy
stem
Con
nect
the
aud
io le
ft an
d rig
ht O
UT
ter
min
als
of a
TV,
VC
R, L
aser
Disc
pla
yer,
DV
D p
laye
r or
CD
Rec
orde
r to
the
AU
X-I
Nte
rmin
als.
Not
e:–
If yo
u ar
e co
nnec
ting
equi
pmen
t with
a m
ono
outp
ut (a
sin
gle
audi
o ou
t ter
min
al),
conn
ect i
t to
the
AUX
left
term
inal
. Alte
rnat
ively,
you
can
use
a“s
ingl
e to
dou
ble”
cin
ch c
able
(th
e ou
tput
sou
ndst
ill re
mai
n m
ono)
.
Bef
ore
usi
ng
the
rem
ote
co
ntr
ol
1Pu
ll ou
t th
e pl
astic
pro
tect
ive
shee
t.2
Sele
ct t
he s
ourc
e y o
u w
ish t
o co
ntro
l by
pres
sing
one
of t
he s
ourc
e se
lect
key
s on
the
rem
ote
cont
rol (
for
exam
ple
CD
, TU
NER
).3
The
n se
lect
the
des
ired
func
tion
(for
exa
mpl
eÉÅ
,í
,ë
).
pla
stic
pro
tect
ive
shee
t
Rep
laci
ng
bat
tery
(lit
hiu
mC
R20
25)
into
th
e re
mo
te c
on
tro
l1
Pull
out
the
knob
A
sligh
tly t
o th
e le
ft.
2Pu
ll ou
t th
e ba
tter
y co
mpa
rtm
ent B
.
3R
epla
ce a
new
bat
tery
and
fully
inse
rt t
heba
tter
y co
mpa
rtm
ent
back
to
the
orig
inal
posit
ion.
CA
UT
ION
!B
atte
ries
con
tain
che
mic
al s
ubst
ance
s, so
they
sho
uld
be d
isp
osed
off
pro
per
ly.
Pre
par
atio
ns
PREPARATIONS AND CONTROLS
1-8
)
1 3 4 6 7 8 9
5 ! 02
1
! 7 0 8 *%@
3 # $ & ^ (5
Co
ntr
ols
Co
ntr
ols
on
th
e sy
stem
an
dre
mo
te c
on
tro
l
1S
TA
ND
BY-
ON
/ EC
O P
OW
ER
–sw
itche
s th
e sy
stem
on
or t
o Ec
o Po
wer
sta
ndby
.2
Dis
pla
y–
show
s th
e st
atus
of t
he s
yste
m.
3O
PE
N •
CL
OS
Eç
–op
ens/
clo
ses
the
CD
doo
r.4
IR–
rem
ote
sens
or5
VO
LU
ME
(3
/ 4
) (+
/-)
–ad
just
s th
e vo
lum
e le
vel.
6C
D D
oo
r7
Mo
de
Sel
ecti
on
SE
AR
CH
/ TU
NE
(à
/á)
for T
UN
ER....
....tu
nes
to a
sta
tion
for
CD
........
........
. fas
t se
arch
es b
ack
and
forw
ard
with
in a
tra
ck/ C
D.
ST
OP
9....
........
stop
s C
D p
layb
ack
or e
rase
aC
D p
rogr
amm
e.P
LA
YÉÅ
...... s
tart
s or
inte
rrup
ts p
layb
ack.
PR
ES
ET
(¡
/ ™
)fo
r TU
NER
........
sele
cts
a pr
eset
rad
io s
tatio
n.fo
r C
D....
........
..... s
kips
to
the
begi
nnin
g of
acu
rren
t tr
ack/
pre
viou
s/su
bseq
uent
tra
ck8
DB
B(D
ynam
ic B
ass
Bo
ost
)–
enha
nces
the
bas
s.9
BA
ND
–se
lect
s a
wav
eban
d.0
PR
OG
RA
Mfo
r C
D....
........
..... p
rogr
amm
es t
rack
s an
d re
view
sth
e pr
ogra
mm
e.fo
r TU
NER
........
prog
ram
mes
tun
er s
tatio
ns.
!S
OU
RC
E–
sele
cts
the
resp
ectiv
e so
und
sour
ce fo
r C
D/
TU
NER
/ AU
X.
@C
LO
CK
SE
T–
sets
the
clo
ck fu
nctio
n.–
view
s th
e cl
ock.
#T
IME
R–
activ
ates
/ dea
ctiv
ates
or
sets
the
tim
er fu
nctio
n$
SL
EE
P–
activ
ates
/dea
ctiv
ates
or
sele
cts
the
sleep
er t
ime.
%D
SC
(Dig
ital
So
un
d C
on
tro
l)–
sele
cts
soun
d ch
arac
teris
tics:
ROC
K/ JA
ZZ
/PO
P/ C
LASS
IC.
Not
es f
or r
emot
e co
ntr o
l:–
Firs
t se
lect
the
sou
rce
you
wis
h to
con
trol
by p
ress
ing
one
of t
he s
ourc
e se
lect
key
s on
the
rem
ote
cont
r ol (
for
exam
ple
CD
,T
UN
ER).
–T
hen
sele
ct t
he d
esir
ed f
unct
ion
(for
exam
pleÉÅ
, ¡ ,
™).
^R
DS
.NE
WS
–ac
tivat
es R
DS
new
s an
d Tr
affic
Ann
ounc
emen
t.–
for
tune
r, di
spla
ys R
DS
info
rmat
ion.
&M
UT
E–
inte
rrup
ts a
nd r
esum
es s
ound
rep
rodu
ctio
n.*
RE
PE
AT
–re
peat
s a
trac
k/ C
D p
rogr
amm
e/ e
ntire
CD
.(
SH
UF
FL
E–
play
s C
D t
rack
s in
ran
dom
ord
er.
) –co
nnec
ts h
eadp
hone
s
PREPARATIONS AND CONTROLS
1-9
Impo
rtan
t no
tes
for
user
s in
the
U.K
.
Mai
ns
plu
gT
his
appa
ratu
s is
fitte
d w
ith a
n ap
pro v
ed 1
3A
mp
plug
. To
chan
ge a
fuse
in t
his
type
of p
lug
proc
eed
as fo
llow
s:
1R
emov
e fu
se c
over
and
fuse
.
2Fi
x ne
w fu
se w
hich
sho
uld
be a
BS1
362
5 A
mp,
A.S
.T.A
. or
BSI a
ppro
ved
type
.
3R
efit
the
fuse
cov
er.
If th
e fit
ted
plug
is n
ot s
uita
ble
for
your
soc
ket
outle
ts, i
t sh
ould
be
cut
off a
nd a
n ap
prop
riate
plug
fitt
ed in
its
plac
e.If
the
mai
ns p
lug
cont
ains
a fu
se, t
his
shou
ldha
ve a
val
ue o
f 5 A
mp.
If a
plu
g w
ithou
t a
fuse
is us
ed, t
he fu
se a
t th
e di
strib
utio
n bo
ard
shou
ld n
ot b
e gr
eate
r th
an 5
Am
p.
Not
e: T
he s
ever
ed p
lug
mus
t be
disp
osed
of t
oav
oid
a po
ssib
le s
hock
haz
ard
shou
ld it
be
inse
rted
into
a 1
3 Am
p so
cket
else
whe
re.
How
to
co
nn
ect
a p
lug
The
wire
s in
the
mai
ns le
ad a
re c
olou
red
with
the
follo
win
g co
de: b
lue
= n
eutr
al (
N),
brow
n =
live
(L)
.
¶A
s th
ese
colo
urs
may
not
cor
resp
ond
with
the
colo
ur m
arki
ngs
iden
tifyi
ng t
he t
erm
inal
s in
your
plu
g, pr
ocee
d as
follo
ws:
–C
onne
ct t
he b
lue
wire
to
the
term
inal
mar
ked
N o
r co
lour
ed b
lack
.–
Con
nect
the
bro
wn
wire
to
the
term
inal
mar
ked
L or
col
oure
d re
d.–
Do
not
conn
ect
eith
er w
ire t
o th
e ea
rth
term
inal
in t
he p
lug,
mar
ked
E (o
r e)
orco
lour
ed g
reen
(or
gre
en a
nd y
ello
w).
Befo
re r
epla
cing
the
plu
g co
ver,
mak
e ce
rtai
nth
at t
he c
ord
grip
is c
lam
ped
over
the
she
ath
of t
he le
ad -
not
sim
ply
over
the
tw
o w
ires.
Co
pyri
ght
in t
he
U.K
.R
ecor
ding
and
pla
ybac
k of
mat
eria
l may
requ
ire c
onse
nt. S
ee C
opyr
ight
Act
195
6 an
dT
he P
erfo
rmer
’s Pr
otec
tion
Act
s 19
58 t
o 19
72.
No
rge
Type
skilt
finn
es p
å ap
para
tens
und
ersid
e.
Obs
erve
r: N
ettb
ryte
ren
er s
ekun
der t
innk
ople
t. D
en in
neby
gde
netd
elen
er
derf
or ik
ke f
rako
ple
t ne
ttet
så
leng
eap
par
atet
er
tils
lutt
et n
ettk
onta
kten
.
For
å re
duse
re fa
ren
for
bran
n el
ler
elek
trisk
støt
, ska
l app
arat
et ik
ke u
tset
tes
for
regn
elle
rfu
ktig
het.
Ita
liaD
ICH
IAR
AZ
ION
E D
I C
ON
FO
RM
ITA
’
Si d
ichi
ara
che
l’app
arec
chio
MC
230,
MC
235
Phili
ps r
ispon
de a
lle p
resc
rizio
ni d
ell’a
rt. 2
com
ma
1 de
l D.M
. 28
Ago
sto
1995
n. 5
48.
Fatt
o a
Eind
hove
n
Phili
ps C
onsu
mer
Ele
ctro
nics
Philip
s, G
lasla
an 2
5616
JB E
indh
oven
, The
Net
herla
nds
CA
UT
ION
Use
of
cont
rols
or
adju
stm
ents
or
per
form
ance
of
pr o
cedu
res
othe
r th
anhe
rein
may
res
ult
in h
azar
dous
radi
atio
n ex
pos
ure
or o
ther
uns
afe
oper
atio
n.
VAR
OIT
US
Mui
den
kuin
täs
sä e
site
ttyj
ento
imin
toje
n sä
ädön
tai
ase
tust
e nm
uutt
o sa
atta
a al
tist
aa v
aara
llise
llesä
teily
lle t
ai m
uille
vaa
ralli
sille
toim
inno
ille.
1-10
PREPARATIONS AND CONTROLSW
AR
NIN
GU
nder
no
circ
umst
ance
s sh
ould
you
try
to
rep
air
the
syst
em y
ours
elf,
as t
his
will
inva
lidat
e th
ew
arra
nty.
Do
not
open
the
sys
tem
as
ther
e is
a r
isk
of e
lect
ric
shoc
k.
If a
fau
lt o
ccur
s, fi
rst
chec
k th
e p
oint
s lis
ted
belo
w b
efor
e ta
king
the
sys
tem
for
rep
air.
If y
ouar
e un
able
to
rem
edy
a p
robl
em b
y fo
llow
ing
thes
e hi
nts,
con
sult
you
r de
aler
or
Phi
lips
for
help
.
Pro
blem
So
luti
on
CD
OP
ER
AT
ION
“NO DISC
” is
dis
pla
yed
.–
Inse
rt a
disc
.–
Che
ck if
the
disc
is in
sert
ed u
psid
e do
wn.
–W
ait
until
the
moi
stur
e co
nden
satio
n at
the
lens
has
clea
red.
–R
epla
ce o
r cl
ean
the
disc
, see
“M
aint
enan
ce”.
–U
se a
fina
lised
CD
-RW
or
CD
-R.
RA
DIO
RE
CE
PT
ION
Rad
io r
ecep
tio
n is
po
or.
–If
the
signa
l is
too
wea
k, ad
just
the
ant
enna
or
conn
ect
an e
xter
nal a
nten
na fo
r be
tter
rec
eptio
n.–
Incr
ease
the
dist
ance
bet
wee
n th
e M
icro
HiF
iSy
stem
and
you
r TV
or V
CR
.
GE
NE
RA
L
Th
e sy
stem
do
es n
ot
reac
t w
hen
bu
tto
ns
–R
emov
e an
d re
conn
ect
the
AC
pow
er p
lug
and
are
pre
ssed
.sw
itch
on t
he s
yste
m a
gain
.
So
un
d c
ann
ot
be
hea
rd o
r is
of
po
or
–A
djus
t th
e vo
lum
e.q
ual
ity.
–D
iscon
nect
the
hea
dpho
nes.
–C
heck
tha
t th
e sp
eake
rs a
re c
onne
cted
cor
rect
ly.–
Che
ck if
the
str
ippe
d sp
eake
r w
ire is
cla
mpe
d.
Th
e le
ft a
nd
rig
ht
sou
nd
ou
tpu
ts a
re–
Che
ck t
he s
peak
er c
onne
ctio
ns a
nd lo
catio
n.re
vers
ed.
Th
e re
mo
te c
on
tro
l do
es n
ot
fun
ctio
n–
Sele
ct t
he s
ourc
e (C
D o
r TU
NER
, for
exa
mpl
e)p
rop
erly
.be
fore
pre
ssin
g th
e fu
nctio
n bu
tton
(ÉÅ
,í,
ë).
–R
educ
e th
e di
stan
ce b
etw
een
the
rem
ote
cont
rol
and
the
syst
em.
–In
sert
the
bat
tery
with
its
pola
ritie
s(+
/– s
igns
) al
igne
d as
indi
cate
d.–
Rep
lace
the
bat
tery
.–
Poin
t th
e re
mot
e co
ntro
l dire
ctly
tow
ard
IR s
enso
r on
the
fron
t of
the
sys
tem
.
Th
e ti
mer
is n
ot
wo
rkin
g.–
Set
the
cloc
k co
rrec
tly.
–Pr
ess T
IMER
to
switc
h on
the
tim
er.
Th
e C
lock
/Tim
er s
etti
ng
is e
rase
d.
–Po
wer
has
bee
n in
terr
upte
d or
the
pow
er c
ord
has
been
disc
onne
cted
. Res
et t
he c
lock
/tim
er.
Tro
ubl
esh
oo
tin
g
DISMANTLING INSTRUCTIONS
Dismantling of the Rear Portion
1) Remove 11 screws A and B as indicated to remove theRear Cabinet.
2) Remove 2 screws C as indicated to loosen the SpeakerWire Holder.
3) Remove 2 screws D as indicated to loosen the SpeakerBoard .
4) Remove 2 screws E as indicated to loosen the AUX INjack.
DISMANTLING INSTRUCTIONS
2-1 2-1
Figure 1
Figure 2
1) Loosen 3 screws G each to remove the CD MechanismHolder Bracket.
2) Loosen 7 screws F1 and F2 as indicated to remove theMain Board.
3) Remove 3 screws H as indicated to loosen the Gear MotorModule.
4) Loosen 4 screws I (see Figure 3) to remove the Key_CBoard.
5) Loosen 2 screws J (see Figure 3) to remove the DisplayBoard.
Figure 6
Figure 4
Figure 3
Dismantling of the Front Boards and CD Door
6) Loosen 4 screws K (see Figure 3) to remove the Key_BBoard.
7) Loosen 8 screws L (see Figure 3) to remove the Key_ABoard.
8) Loosen 8 screws M (see Figure 3) to remove the Door EjectLever Bracket Right/Left, then remove CD door.
Repair Hints & Service Positions
Note: The flex cables are very fragile, care should be takennot to damage them during repair. After repair, bevery sure that the flex cables are inserted properlyinto the flex sockets before encasing, otherwise faultsmay occurs.
Service position A
Service position C
Service position B
Figure 5
3-1 3-1
SERVICE TEST PROGRAM
Y
N
Y
N
PROGRAMButton pressed?
PROGRAMButton pressed?
ERASE THEEEPROM
Display shows "EP CLR"
COMPACT DISCTEST
KEY
NEXT
PREV
STOP
PLAY
DISPLAYMESSAGE
-
-
-
-
-
-
-
-
-
ACTION
Disc motor turns clockwise, motor power 50%.
Disc motor turns counter clockwise, motor power 50%
Slide moves outside.
Slide moves inside.
Exit to main menu.
Enter focus servo test.
OKAY ERROR
MOTOR 1
MOTOR 2
SLE OUT
SLE IN
FOCUS
Note : Disc should be available on the tray before entering the Service Test Mode.
VOLUME+Button pressed?
Button pressed?
Y
N
N
Y
Display shows "Key"
KEYTEST
AnyButton pressed?
N
Main Set Key
STANDBY-ON
OPEN*CLOSE
SOURCE-
DBB
BAND
PROGRAM
DISPLAY
32
29
11
17
10
14
18
19
20
24
23
Table 1
Y
N
Y
N
Y
N
VOLUME-Button pressed?
VOLUME-Button pressed?
STOPButton pressed?
DISPLAYTEST
Display shows all display segments and switch allLEDs on.
Display shows alternate display segments & switchalternate LEDs on.
To start service test programPLAY & SOURCEdepressed while
plugging in the mains cord
Display shows theROM version "VER XXX"(Main menu)
VER refers to Version
XXX refers to Software version number of the uProcessor (counting up from 010 to 999)
PLAYVOLUME+
VOLUME-
PREVIOUS( )
NEXT ( )
The corresponding codes according to Table 1 will be displayed
STOP
12
13
- -
-
-
R-C Key
POWER
CD
TUNER
AUX
OPEN*CLOSE
DBB
DISPLAY
12
63
63
63
45
70
52
50
33
32
"VER XXX"
VOL+
VOL-
PREVIOUS( )
NEXT ( )
42
38
PROG
REPEAT
SHUFFLE
PLAY
STOP
CLOCK SET
TIMER
SLEEP
89
MUTE
RDS * NEWS 15
13
17
16
53
26
29
36
REMOTE CONTROLKEY TEST
Note : In Key test mode, if a key on the remote control is pressed, the display shows its corresponding code in track area.
Exit to main menu
REMARK
4-1 4-1
SET BLOCK DIAGRAM
5-1 5-1
SET WIRING DIAGRAM
POWER BOARD
TABLE OF CONTENTS
Circuit Diagram ................................................................ 6-2PCB Layout ....................................................................6-3
6-1 6-1
6-2 6-2
CIRCUIT DIAGRAM
6-3 6-3
LAYOUT DIAGRAM - POWER BOARDCOMPONENT SIDE
LAYOUT DIAGRAM - POWER BOARDSMD SIDE
7-1
KEY BOARD
TABLE OF CONTENTS
Circuit Diagram ........................................................................... 8-2Layout Diagram-Component ...................................................... 8-3Layout Diagram-SMD ................................................................. 8-3Layout Diagram-Component ...................................................... 8-4Layout Diagram-SMD ................................................................. 8-4
7-1
CIRCUIT DIAGRAM - FRONT BOARD
7-2 7-2
LAYOUT DIAGRAM - KEY_A BOARDCOMPONENT SIDE
7-3 7-3
LAYOUT DIAGRAM - KEY_B BOARDCOMPONENT SIDE
LAYOUT DIAGRAM - KEY_A BOARDSMD SIDE
LAYOUT DIAGRAM - KEY_B BOARDSMD SIDE
7-4 7-4
LAYOUT DIAGRAM - KEY_C BOARDCOMPONENT SIDE
LAYOUT DIAGRAM - KEY_C BOARDSMD SIDE
8-1
MAIN BOARD
TABLE OF CONTENTS
IC Block Diagram........................................................................ 8-1Circuit Diagram-Main Part .......................................................... 8-2Component Layout - Main PCB ................................................. 8-3SMD Layout - Main PCB ............................................................ 8-4Layout - Headphone PCB .......................................................... 8-5IC Block Diagram........................................................................ 8-5
8-1
SOUND FADER CONTROL CIRCUITTEA6321
8-2 8-2
MAIN BOARD - CIRCUIT DIAGRAMMCU & AMP. PART
8-3 8-3
MAIN BOARD - CIRCUIT DIAGRAMCD PART
8-4 8-4
MAIN BOARD - CIRCUIT DIAGRAMTUNER PART
8-5 8-5
MAIN PCB - COMPONENT LAYOUT
MAIN PCB - COMPONENT LAYOUT
8-6 8-6
HEADPHONE PCB - TOP LAYOUT
8-7 8-7
HEADPHONE PCB - BOTTOM LAYOUT
FLASH MICROCONTROLLERP89C60X2/P89C61X2--BLOCK DIAGRAM
9-1
DISPLAY BOARD
TABLE OF CONTENTS
Circuit Diagram ........................................................................... 9-2Layout Diagram-Component ...................................................... 9-3Layout Diagram-SMD ................................................................. 9-3
9-1
CIRCUIT DIAGRAM - DISPLAY BOARD
9-2 9-2
LAYOUT DIAGRAM - DISPLAY BOARDCOMPONENT SIDE
9-3 9-3
LAYOUT DIAGRAM - DISPLAY BOARDSMD SIDE
10-1 10-1
EXPLODED DRAWING
5
5
11
12
12
19
19
28
28
36
38
41 43
19
19
19
19
43
48
71
28
51
53
19
59
61
63
63
71
71
71
71
43
69
43
43
72
28
001
002
003
004
006
007
008
009
011
012
013
014
016
017
018
019
021
022
023
024
026
027
028
71
029
031
024
027
027
QTYDESCRIPTIONITEM6SELF-TAPPING SCREW TA/KH 1.4x3.5 mm58SELF-TAPPING SCREW TA/KH 2.6x8mm12
17HARDEN SCREW BTTB 2x8 MC1919HARDEN SCREW BTTB 2.6x8mm MC281SELF-TAPPING SCREW TB/WH 3x6mm361SELF-TAPPING SCREW TA/WH 2.6x6 mm382MACHINE SCREW MS/BH 3x4 mm41
14HARDEN SCREW BTTB 3x12 AB432SELF-TAPPING SCREW TA/WH 3x12mm481SCREW TA/BWH 3x10mm (HD:12mm)512NUT ID:3 OD:5.5 T:2.3mm592MACHINE SCREW MS/KH 3x8mm HD 5mm614SELF-TAPPING SCREW TA/WH 3x10mm(H D:10mm)632HARDEN SCREW TT/PH 3x4699HARDEN SCREW BTTB 3x8mm AB712SELF-TAPPING SCREW TB/KH 3x8 HD 5mm72
MC230 SCREW LIST
10-2 10-2
MECHANICAL & ACCESSORIES PARTSLIST
001 9940 000 00303 CD DOOR LENS /22/25
9940 000 00512 AC CORD BS PLUG 2M /25001 9940 000 00595 CD DOOR LENS /21/30
9940 000 00593 AC CORD SAA APP 2M /30001 9940 000 00599 CD DOOR LENS /37002 9940 000 00292 CD DOOR COVER -LEFT003 9940 000 00293 CD DOOR COVER -RIGHT
004 9940 000 00304 CONTROL PANEL LENS /22/25/37004 9940 000 00596 CONTROL PANEL LENS /21/30006 9940 000 00289 FRONT CABINET /22/25006 9940 000 00318 FRONT CABINET /37006 9940 000 00591 FRONT CABINET /21/30
007 9940 000 00305 SENSOR LENS008 9940 000 00297 POW CD OPEN BUTT /22/25008 9940 000 00321 POW CD OPEN BUTT /21/30/37009 9940 000 00298 VOL +/- BUTTON /22/25009 9940 000 00322 VOL +/- BUTTON /21/30/37
011 9940 000 00279 CD MECHANISM TPP381012 9940 000 00287 SHOCK ABSORBER013 9940 000 00288 SHOCK ABSORBER014 9940 000 00302 FUNCTION BUTTON /22/25014 9940 000 00324 FUNCTION BUTTON /21/30/37
016 9940 000 00299 FUNC BUTTON S/P /22/25016 9940 000 00323 FUNC BUTTON S/P /21/30/37017 9940 000 00589 DRIVE BELT (DIA:38X1MM) 018 9940 000 00296 DRIVER PULLEY GEAR019 9940 000 00295 IDLER GEAR
Note: Only these parts mentioned in the list are normal
021 9940 000 00294 DRIVING GEAR
normal service parts.
022 9940 000 00286 MOTOR 5V023 9940 000 00278 TRANSFORMER 230V /22/25023 9940 000 00316 TRANSFORMER 120V /37023 9940 000 00597 H/TRANSFORMER 120/230V /21
023 9940 000 00598 H/TRANSFORMER 240V /30024 9940 000 00284 RUBBER FOOT026 9940 000 00291 REAR CABINET /22/25/30026 9940 000 00319 REAR CABINET (94V2) /37026 9940 000 00592 REAR CABINET /21
027 9940 000 00283 SPEAKER HOLDER028 9940 000 00307 SPEAKER WIRE HOLDER029 9940 000 00306 STAND UNIT
031 9940 000 00243 AM/FM ANT ASS'Y /21/22/25/30031 9940 000 00308 AM/FM ANT ASS'Y /37
9940 000 00246 REMOTE CONTROL UNIT
9940 000 00247 SPEAKER BOX UNIT (LEFT)9940 000 00309 SPEAKER BOX UNIT (LEFT) /379940 000 00248 SPEAKER BOX UNIT (RIGHT)9940 000 00311 SPEAKER BOX UNIT (RIGHT)/379940 000 00282 AC CORD VDE APP 2M /21/22
9940 000 00317 AC CORD CUL APP 6FT /37
!
!
!
!
!
!
!
!
ELECTRICAL PARTSLIST
AUX 9940 000 00281 RCA JACK BD 2P U601 9940 000 00366 IC TEA6321CF1 9940 000 00245 BAND PASS FILTER U602 9940 000 00249 IC (ROHM) BA4558F D407 9940 000 00312 VARICAP DIODE /21/30/37 U603 9940 000 00367 IC (PHILIPS) TFA9842JD408 9940 000 00312 VARICAP DIODE /21/30/37 VC402 9940 000 00314 TRIMMER 10PF 6MMFS300 9940 000 00588 GLASS FUSE T800MA/250V/21 VC403 9940 000 00254 TRIMMER 10PF 6MM (WH)
FS301 9940 000 00258 CERAMIC FUSE /22/25/37 VR401 9940 000 00313 SEMI FIXED VRB100K 6MMFS301 9940 000 00585 CERAMIC FUSE 2A/250V /21/30 X201 9940 000 00255 CER RESONATOR 8.4672MHzFS302 9940 000 00259 CERAMIC FUSE /22/25/37 9940 000 00587 SWITCH /21MFS302 9940 000 00586 GLASS FUSE 3.15A/250V /21/30FS303 9940 000 00263 SUBMINIATURE FUSE 100MA/250V
IC1 9940 000 00277 IC (LIBERAL) LM78L05JK401 9940 000 00275 RCA PIN JACK #RCA-125JK601 9940 000 00257 PHONE JACK MSJ-2000(ST)JK602 9940 000 00276 SPK JACK (R/B/R/B)LCD5019940 000 00268 LCD DISPLAY
LED501 9940 000 00266 LED LAMP 3MM (BLUE)LED502 9940 000 00267 LED LAMP 5MM (BLUE)LED503 9940 000 00265 LED LAMP (MICRO)RF1 9940 000 00256 TUNER (MITSUMI) FE450-G01RL301 9940 000 00264 RELAY
S501 9940 000 00274 TACT SWITCH TSA-064301-100S502 9940 000 00274 TACT SWITCH TSA-064301-100S503 9940 000 00274 TACT SWITCH TSA-064301-100S504 9940 000 00274 TACT SWITCH TSA-064301-100S505 9940 000 00274 TACT SWITCH TSA-064301-100
S506 9940 000 00274 TACT SWITCH TSA-064301-100S507 9940 000 00274 TACT SWITCH TSA-064301-100S508 9940 000 00274 TACT SWITCH TSA-064301-100S509 9940 000 00274 TACT SWITCH TSA-064301-100S510 9940 000 00274 TACT SWITCH TSA-064301-100
S511 9940 000 00274 TACT SWITCH TSA-064301-100S512 9940 000 00274 TACT SWITCH TSA-064301-100S513 9940 000 00274 TACT SWITCH TSA-064301-100S514 9940 000 00274 TACT SWITCH TSA-064301-100SR501 9940 000 00272 OPTIC SENSOR /22
SR501 9940 000 00325 OPTIC SENSER /21/30/37SW601 9940 000 00273 MICRO SWITCH 1120B Note: Only these parts mentioned in the list are normalSW602 9940 000 00273 MICRO SWITCH 1120B normal service parts.T302 9940 000 00262 TRANSF. EI-28 AC230V /22/25U101 9940 000 00253 IC (SAMSUNG) KA7808
U102 9940 000 00244 IC P89C60X2BBD /22/25U102 9940 000 00368 IC P87C58X2BBD /21/30/37U103 9940 000 00251 IC (ROHM) BR24L04U201 9940 000 00365 IC (PHILIPS) SAA7379HL CD-18U202 9940 000 00252 IC MOTOR DRIVER D9259
U301 9940 000 00261 IC (LIBERAL) LM78L05U401 9351 772 20557 IC SM TEA5762H/V1 (PHSE) YU501 9940 000 00269 IC ET1621 COB LCD DRIVER
!
!
!
!
!
!
11-1
REVISION LIST
1.1 Manual 3141 785 30021 In this version, the schematics of CD section and Tuner section are added. P8-1 : Main Board P8-2 : Circuit Diagram-- MCU and Amplifier Part P8-3 : Circuit Diagram-- CD Part P8-4 : Circuit Diagram-- Tuner Part P8-5 to P8-6: PCB Layouts
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