Philips MC-220 EN (serwisowa).pdf

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Micro System
MC-220
all versions
Service Manual
TABLE OF CONTENTS
Handling chip components ............................................................1-1
Technical specification...................................................................2-1
Service tools ..................................................................................2-1
Service measurement setup ..........................................................2-2
Connections and controls ......................................................3-1...3-2
Disassembly diagram ....................................................................4-1
Service Test Program ....................................................................4-2
Pin description of ICs.............................................................4-3...4-4
Set block diagram ..........................................................................5-1
Set wiring diagram .........................................................................5-2
LED BOARD
circuit diagram ..........................................................................6-1
layout diagram ..........................................................................6-1
TUNER BOARD (ECO6 cenelec)
circuit diagram ..........................................................................7-1
layout diagram ..........................................................................7-2
tuner adjustment table ..............................................................7-2
TUNER BOARD (ECO6 non cenelec)
circuit diagram ..........................................................................7-3
layout diagram ..........................................................................7-4
tuner adjustment table ..............................................................7-4
ETF 8 TAPE DECK MODULE
circuit diagram ..........................................................................8-1
layout diagram ..........................................................................8-2
tape deck adjustment................................................................8-3
tape deck wiring diagram..........................................................8-4
CD MODULE (CD99-DA11)
circuit diagram ...................................................................9-1, 9-3
layout diagram ..........................................................................9-2
POWER BOARD
circuit diagram ........................................................................10-1
layout diagram ........................................................................10-1
FRONT BOARD
circuit diagram ........................................................................11-1
layout diagram ..............................................................11-2...11-3
COMBI BOARD
circuit diagram. .............................................................12-1...12-3
layout diagram ..............................................................12-4...12-5
circuit diagram ( for /22/25)...........................................12-6...12-8
layout diagram ( for /22/25) ........................................12-9...12-10
Exploded view (main set) ..................................................13-1...13-2
Mechanical partslist .....................................................................13-2
Exploded view diagram (tape deck).............................................13-3
Electrical partslist.............................................................14-1...14-16
Electrical partslist (for /22/25) ........................................14-17...14-22
©
Copyright
2001 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
CLASS 1
LASER PRODUCT
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
or otherwise without the prior permission of Philips.
Published by LX 0302 Service Audio
Printed in The Netherlands
Subject to modification
©
3140 785 32370
1-1
HANDLING CHIP COMPONENTS
©
WARNING
All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD). Careless handling during
repair can reduce life drastically.
When repairing, make sure that you are connected with the
same potential as the mass of the set via a wristband with
resistance. Keep components and tools at this potential.
ESD
ñ
WAARSCHUWING
Alle IC˙s en vele andere halfgeleiders zijn gevoelig voor
electrostatische ontladingen (ESD).
Onzorgvuldig behandelen tijdens reparatie kan de levensduur
drastisch doen vermindern. Zorg ervoor dat u tijdens reparatie
via een polsband met weerstand verbonden bent met hetzelfde
potentiaal als de massa van het apparaat.
Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.
f
ATTENTION
Tous les IC et beaucoup d˙autres semi-conducteurs sont
sensibles aux d charges statiques (ESD). Leur long vite
pourrait tre consid rablement court e par le fait qu˙aucune
pr caution n st prise leur manipulation.
Lors de r parations, s˙assurer de bien tre reli au m me
potentiel que la masse de l˙appareil et enfileer le bracelet
serti d˙une r sistance de s curit .
Veiller ce que les composants ainsi que les outils que l˙on
utilise soient galement ce potentiel.
d
WARNUNG
i
AVVERTIMENTO
Alle ICs und viele andere Halbleiter sind empfindlich
gegen ber elektrostatischen Entladungen (ESD).
Unsorgf ltige Behandlung im Reparaturfall kann die
Lebensdauer drastisch reduzieren.
Sorgen Sie daf r, da⁄ Sie im Reparaturfall ber ein Puls-
armband mit Widerstand mit dem Massepotential des
Ger tes verbunden sind.
Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem
Potential.
Tutti IC e parecchi semi-conduttori sono sensibili alle scariche
statiche (ESD).
La loro longevit potrebbe essere fortemente ridatta in caso di
non osservazione della pi grande cauzione alla loro
manipolazione. Durante le riparationi occorre quindi essere
collegato allo stesso potenziale che quello della massa
del pparecchio tramite un braccialetto a resistenza.
Assicurarsi che i componenti e anche gli utensili con quali si
lavora siano anche a questo potenziale.
©
Safety regulations require that the set be restored to its
original condition and that parts which are identical with
those specified be used.
Safety components are marked by the symbol
SAFETY
ñ
Veiligheidsbepalingen vereisen, dat het apparaat in zijn
oorspronkeliijke toestand wordt teruggebracht en dat
onderdelen, identiek aan de gespecificeerde, worden toegepast.
De Veiligheidsonderdelen zijn aangeduid met het symbool
f
Les normes de s curit exigent que l appareil soit remis
l tat d origine et que soient utilis les pi ces de
es
rechange identiques celles sp cifi es.
Les composants de s curit sont marqu s
i
d
Bei jeder Reparatur sind die geltenden Sicherheitsvor-
schriften zu beachten. Der Originalzustand des Ger tes
darf nicht ver ndert werden. F r Reparaturen sind Original-
ersatzteile zu verwenden.
Sicherheitsbauteile sind durch das Symbol
markiert.
Le norme di sicurezza estigono che l˙apparecchio venga
rimesso nelle condizioni originali e che siano utilizzati i
pezzi di ricambiago identici a quelli specificati.
Componenty di sicurezza sono marcati con
DANGER:
Invisible laser radiation when open.
AVOID DIRECT EXPOSURE TO BEAM.
CLASS 1
LASER PRODUCT
©
After servicing and before returning the set to customer
perform a leakage current measurement test from all
exposed metal parts to earth ground, to assure no
shock hazard exists.
The leakage current must not exceed 0.5mA.
s
Varning !
Osynlig laserstr lning n r apparaten r ppnad och
sp rren r urkopplad. Betrakta ej str len.
∂
Advarsel !
Usynlig laserstr ling ved bning n r sikkerhedsafbrydere
er ude af funktion. Undg udsaettelse for str ling.
ß
Varoitus !
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
n kym tt m lle laseris teilylle. l katso s teeseen !
f
"Pour votre s curite, ces documents doivent tre utilis s par
des sp cialistes agr s, seuls habilit s r parer votre
appareil en panne".
2-1
TECHNICAL SPECIFICATIONS
GENERAL
-/25
-/37
-/21/21M
-/22/30/33
Mains frequency
-/22/ 30/33
/25/
-/21/21M
-/37
Battery
remote
Power consumption
normal
Standby
Dimension (W x H x D)
Weight
Mains voltage
:
:
:
:
:
:
:
:
:
:
:
:
240 V
120 V
120 / 230 V
230 V
50 Hz
50 / 60 Hz
60 Hz
3 V (R6 x 2)
60 W
3W
140 x 231 x 280 mm
6.7 Kg
TUNER - AM SECTION
Tuning range
Tuning range
IF frequency
Sensitivity
Selectivity
IF rejection
Spurious rejection ratio
Image rejection ratio
MW : 531 - 1602 kHz
-/37 : 530 - 1700 kHz
LW : 153 - 279 kHz
: 450 kHz
±
1 kHz
MW :
≤
3.5 mV/m at 26dB S/N
LW :
≤
4.2 mV/m
MW : < 22 dB
LW : < 35 dB
MW : < 64 dB
MW : < 58 dB
LW : < 51 dB
MW : < 40 dB
LW : < 47 dB
AMPLIFIER
Output power
Speaker impedance
Frequency response
mains : 2 x 8 W
: 2 x 8 ohm
: 100 Hz - 10 kHz (±4dB)
AUDIO CASSETTE RECORDER
Frequency response
Wow & flutter
Tape speed
Channel difference
S/N ratio (unw.)
S/N ratio (wght.)
87.5 - 108 MHz
10.7 MHz
±
0.02 MHz
16 dBf at 26dB S/N
55 dB
85 dB
40 dB
28 dB
:
:
:
:
:
:
:
:
80 - 12500 Hz
0.4 % (DIN)
4.76 cm/s
±
2 %
0 dB
47 dB
50 dB
52 dB
56 dB
TUNER - FM SECTION
Tuning range
IF frequency
Sensitivity
Selectivity
IF suppression
Image suppression
Channel separation
:
:
:
300kHz :
:
:
1kHz :
1kHz
Ferro
Chrome
Ferro
Chrome
COMPACT DISC
Frequency response
S/N ratio (unw.)
S/N ratio (A-wght.)
THD+N
Channel crosstalk
Channel unbalance
:
:
:
1 kHz :
:
:
20Hz
-
20kHz within
1.5dB
> 85 dB
> 90 dB
> 72 dB
> 50 dB
<
±1
dB
SERVICE TOOLS
TORX T10
screwdriver with shaftlength 150mm.........................................4822 395 50423
TORX screwdriver set
SBC 163...............................................................4822 295 50145
Audio signal disc
SBC 429........ ..............................................................4822 397 30184
Playability test disc
SBC 444...................................................................4822 397 30245
Test disc 5
(disc without errors ) +
Test disc 5A
(disc with dropout errors, black spots and fingerprints)
SBC 426/426A.....................................................................4822 397 30096
Burn in test disc
(65 min. 1kHz signal at -30 dB level without pause .....4822 397 30155
)
Universal test cassette Fe
SBC 420 ........................................................4822 397 30071
AVAILABLE ESD PROTECTION EQUIPMENT
4822 466 10953
4822 466 10958
anti-static wristband
4822 395 10223
4822 320 11307
connection box
(3 press stud connections, 1M‰)
extendible cable
(2m, 2M‰, to connect wristband to connection box) 4822 320 11305
connecting cable
(3m, 2M‰, to connect table mat to connection box) 4822 320 11306
earth cable
(1M‰, to connect any product to mat or to connection box) 4822 320 11308
KIT ESD3
(combining all 6 prior products - small table mat)
4822 310 10671
wristband tester
4822 344 13999
anti-static table mat
large 1200x650x1.25mm
small 600x650x1.25mm
2-2
SERVICE MEASUREMENT
Tuner FW
DUT
RF Generator
e.g. PM5326
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
Ri=50‰
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).
Tuner AM (MW,LW)
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
DUT
LF Voltmeter
e.g. PM2534
RF Generator
e.g. PM5326
S/N and distortion meter
e.g. Sound Technology ST1700B
Ri=50‰
Frame aerial
e.g. 7122 707 89001
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 250kHz) to eliminate hum (50Hz, 100Hz).
CD
Use Audio Signal Disc SBC429
(replaces test disc 3)
4822 397 30184
RECORDER
Use Universal Test Cassette
Fe
SBC420
4822 397 30071
DUT
L
R
LF Generator
e.g. PM5110
DUT
L
R
S/N and distortion meter
e.g. Sound Technology ST1700B
Ri=50‰
S/N and distortion meter
e.g. Sound Technology ST1700B
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
%
2
Controls
!
)
1
CLOCK / RDS
VOL
0
^
&
5
9
2
0
–
–
DSC
MUTE
NEWS/TA
DBB
IS
REPEAT
SHUFFLE
SLEEP
CD
AUX
TUNER
TAPE
Controls on the system and
remote control
6
*
(
3
–
–
!
CONNECTION AND CONTROLS
$
4
–
@
5
–
–
6
#
–
3-1
STANDBY-ON
REV
MODE
BAND
SIDE A/B
PROGRAM
TIMER
RDS
REPEAT
SHUFFLE
$
–
#
@
!
4
7
–
ON
OFF
CLOCK
1
2
3
%
–
PROGRAM SHUFFLE
0
SOURCE
SELECT
^
–
RECORD
PLAY•PAUSE
STOP
&
–
9
8
–
PREV
NEXT
iR
5
6
7
9
*
–
(
–
8
)
–
(
¡, ™
) ................skips to the beginning of a
cur rent tr ack/previous/
subsequent track.
(
à, á
) ..........fast searches back and forward
within a track/CD.
.................................fast rewind/wind tape.
TUNING
à á
(
à, á
) ..........tunes to radio stations.
RECORD
........starts recording.
SELECT SOURCE
selects the respective sound source for CD/
TUNER/ TAPE /AUX.
switches on the system.
STANDBY ON
y
switches the system to standby/on.
on the remote control only
- switches the system
to standby.
PROGRAM
for CD .................programmes tracks and reviews
the programme .
for Tuner .............programmes tuner stations
manually or automatically .
TIMER ON•OFF
activates/deactivates or sets the timer function.
OPEN•CLOSE
opens/closes the CD door .
n
connect headphones.
REPEAT
repeats a track/CD programme/ entire CD .
SHUFFLE
plays CD tracks in random order.
MUTE
interrupts and resumes sound reproduction.
NEWS/TA
activates RDS news and Traff ic Announcement .
SLEEP
activates/deactivates or selects the sleeper time .
for Tuner.............displays RDS information.
for Clock ............sets the clock function.
for Tape...............shows tape counter in recording
mode.
REPEAT/ REV MODE/ BAND
for CD .................repeats a track/CD programme/
entire CD.
for Tape............... selects tape reverse modes.
for Tuner.............selects waveband.
SHUFFLE/ SIDEA/B
for CD ................. plays CD tracks in random order
for Tape...............switches tape direction.
Display
shows the status of the system.
VOLUME (VOL
-/+)
adjusts the volume level.
on the system only
- adjusts the hour and minutes
for the clock/timer functions.
INTERACTIVE SOUND controls:
DBB
....................(Dynamic Bass Boost) enhances
the bass.
DSC
.....................(Digital Sound Control) selects
sound characteristics: CLASSIC/
ROCK/JAZZ/POP.
INCREDIBLE SURR.
(IS)
.......................creates a super-enhanced stereo
eff ect.
OPEN
opens tape compar tment.
iR SENSOR
infrared sensor for remote control.
Mode Selection
STOP
9
............stops CD playback or erase a
CD programme.
.................................stops tape playback/recording.
PLAY•P
AUSE
É
Å
.................................starts or interrupts CD playback.
.................................star ts tape playback.
.................................(on
the remote control only)
dur ing tape playback, switches
tape direction.
PRESET
34
(
¡, ™
) .............. selects a preset radio station.
PREV
¡1
/
NEXT
2™
Notes for remote control:
– Fir st select the source you wish to control
by pressing one of the source select keys on
the remote control (for example CD,
TUNER).
– Then select the desired function (for
example
É
,
í
,
ë
).

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