Philips MCB-204 Service Manual

Micro System

MCB204/05

TABLE OF CONTENTS

Page

Specifi cations .......................................................................1-2

Measurement Setup .............................................................1-3

Service Aids, Safety Instruction, etc ...........................1-4 to 1-6

Service Test Program ..............................................................2

Set Block Diagram ...................................................................3

Set Wiring Diagram .................................................................4

Main Board .............................................................................. 5

Front Board..............................................................................6

MCU Board ..............................................................................7

Power Board ............................................................................8

Set Mechanical Exploded View & Parts List ............................9

©

Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands

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 SL 0716 Service Audio Printed in The Netherlands Subject to modification

Version 1.0

CLASS 1

LASER PRODUCT

© 3141 785 31760

SPECIFICATIONS

1-2

AMPLIFIER

Output power ........................................... 2 x 4W RMS

Signal-to-noise ratio .......................... t 60 dBA (IEC)

Frequency response ....................... 125 – 16000 Hz

Impedance loudspeakers ........................................... 4:

CD PLAYER

Frequency range ............................... 125 – 16000 Hz

Signal-to-noise ratio ............................................ 65 dBA

TUNER

FM wave range ................................... 87.5 – 108 MHz

MW wave range ................................ 531 – 1602 kHz

Sensitivity at 75 :

– FM 26 dB sensitivity .......................................... 20 µV

– MW 26 dB sensitivity ................................... 5 mV/m

Total harmonic distortion ..................................... d 5%

TAPE DECK

Frequency response

Normal tape (type I) ...... 125 – 8000 Hz (8 dB)

Signal-to-noise ratio

Normal tape (type I) .................................... 40 dBA

Wow and flutter .............................................. d 0.4% JIS

SPEAKERS

Bass reflex system
Dimensions (w x h x d) . 146 x 228 x 160 (mm)

GENERAL INFORMATION

AC Power ..................................... 220 – 230 V / 50 Hz

Dimensions (w x h x d) ... 146 x 228 x 216(mm)

Weight (with/without speakers) ..................................

............................................................... approx. 4.4 / 2.0 kg

Power consumption

Active .......................................................................... 30 W

Standby .................................................................... < 5 W

Eco Power Standby ........................................... < 1 W

Specifications and external appearance are
subject to change without notice.

MEASUREMENT SETUP

Tuner FM

1-3

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator

e.g. PM5326

DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50Ω

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)

RF Generator

e.g. PM5326

Ri=50Ω

DUT

Frame aerial

e.g. 7122 707 89001

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

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).

CD

Use Audio Signal Disc
(replaces test disc 3)

DUT

L

R

SBC429 4822 397 30184

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

or Universal Test Cassette Fe SBC420 4822 397 30071

LF Generator

e.g. PM5110

DUT

L

R

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

SERVICE AIDS

1-4

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

HANDLING CHIP COMPONENTS

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

GB

All ICs and many other semi-conductors 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 wrist wrap with resistance.
Keep components and tools also at this
potential.

Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler le bracelet serti d’une résistance de
sécurité.
Veiller à ce que les composants ainsi que les
outils que l’on utilise soient également à ce
potentiel.

F

WARNING

ATTENTION

ESD

D

WARNUNG

Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.

NL

Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
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.

Tutti IC e parecchi semi-conduttori sono
sensibili alle scariche statiche (ESD).
La loro longevità potrebbe essere fortemente
ridatta in caso di non osservazione della più
grande cauzione alla loro manipolazione.
Durante le riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.

WAARSCHUWING

I

AVVERTIMENTO

GB

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

!

.

NL

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.

De Veiligheidsonderdelen zijn aangeduid met het symbool

!

F

Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.

Less composants de sécurité sont marqués

!

D

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. 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 rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.

Componenty di sicurezza sono marcati con

!

CLASS 1

LASER PRODUCT

GB

Invisible laser radiation when open.
Avoid direct exposure to beam.

Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.

SF

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen!

DK

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.

S

Warning !

Varning !

Varoitus !

Advarse !

GB

After servicing and before returning set to customer perform a leakage
current measurement test from all exposed metal parts to earth ground to
assure no shock hazard exist. The leakage current must not exceed

0.5mA.

F

"Pour votre sécurité, ces documents doivent être utilisés par
des spécialistes agréés, seuls habilités à réparer votre
appareil en panne".

1 - 6

s

INFORMATION ABOUT LEAD-FREE SOLDERING

Philips CE is producing lead-free sets from 1.1.2005 onwards.

IDENTIFICATION:

Regardless of special logo (not always indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules:

Example S/N:

Bottom line of typeplate gives a 14-digit S/N. Digit 5&6 is the year, digit 7&8 is the week number,
so in this case 2005 wk12

So from 0501 onwards = from 1 Jan 2005 onwards

Important note
you avoid mixing solder-alloys (leaded/ lead-free). So best to always use SAC305 and the
higher temperatures belong to this.

Due to lead-free technology some rules have to be respected by the workshop during a repair:

• Use only lead-free solder alloy Philips SAC305 with order code 0622 149 00106. If lead-free solder-paste is required, please contact

the manufacturer of your solder-equipment. In general use of solder-paste within workshops should be avoided because paste is not
easy to store and to handle.

• Use only adequate solder tools applicable for lead-free solder alloy. The solder tool must be able

o To reach at least a solder-temperature of 40
o To stabilize the adjusted temperature at the solder-tip
o To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature around

solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400 otherwise wear-out of tips will rise drastically and flux-fluid
will be destroyed. To avoid wear-out of tips switch off un-used equipment, or reduce heat.

• Mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed

solder alloy types (leaded and lead-free).
If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder
with new solder alloy (SAC305).

• Use only original spare-parts listed in the Service-Manuals. Not listed standard-material (commodities) has to be purchased at

external companies.

• Special information for BGA-ICs:

- always use the 12nc-recognizable soldering temperature profile of the specific BGA (for de-soldering always use the lead-free
temperature profile, in case of doubt)

- lead free BGA-ICs will be delivered in so-called 'dry-packaging' (sealed pack including a silica gel pack) to protect the IC against
moisture. After opening, dependent of MSL-level seen on indicator-label in the bag, the BGA-IC possibly still has to be baked dry.
(MSL=Moisture Sensitivity Level). This will be communicated via AYS-website.
Do not re-use BGAs at all.

• For sets produced before 1.1.2005 (except products of 2004), containing leaded solder-alloy and components, all needed spare-part

will be available till the end of the service-period. For repair of such sets nothing changes.

: In fact also products of year 2004 must be treated in this way as long as

− is reached and stabilized at the solder joint. Heating-time of the

• On our website www.atyourservice.ce.Philips.com

BGA-de-/soldering (+ baking instructions)

∗

Heating-profiles of BGAs and other ICs used in Philips-sets

∗

You will find this and more technical information within the "magazine", chapter "workshop news".

For additional questions please contact your local repair-helpdesk.

you find more information to:

SERVICE INSTRUCTION

Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to
the following points:

· Route the wire trees correctly and fix them with the
mounted cable clamps.

· Check the insulation of the AC Power lead for external
damage.

· Check the strain relief of the AC Power cord for proper
function.

· Check the electrical DC resistance between the AC Power
Plug and the secondary side (only for sets which have a AC
Power isolated power supply):

1. Unplug the AC Power cord and connect a wire
between the two pins of the AC Power plug.

2. Set the AC Power switch to the "on" position (keep the
AC Power cord unplugged!).

3. Measure the resistance value between the pins of the
AC Power plug and the metal shielding of the tuner or
the aerial connection on the set. The reading should be
larger than 4.5 Mohm (For U.S. it should be between

4.2 Mohm and 12 Mohm).

4. Switch "off" the set, and remove the wire between the
two pins of the AC Power plug.

• Check the cabinet for defects, to avoid touching of any

inner parts by the customer.

SET BLOCK DIAGRAM

3-1

3-1

SET WIRING DIAGRAM

4-1

4-1

5-1 5-1

PCB LAYOUT - MAIN BOARD (TOP VIEW)

5-2

PCB LAYOUT - MAIN BOARD (BOTTOM VIEW)

5-2

CIRCUIT DIAGRAM - MAIN BOARD
CD MP3 PART

5-3

5-3

CIRCUIT DIAGRAM - MAIN BOARD
INTERF ACE ACE P ART

5-4

5-4

CIRCUIT DIAGRAM - MAIN BOARD
DAB PART

5-5

5-5

6-1 6-1

PCB LAYOUT - FRONT (LCD) BOARD (TOP VIEW)

6-2

PCB LAYOUT - FRONT (LCD) BOARD (BOTTOM VIEW)

6-2

6-3

CIRCUIT DIAGRAM - FRONT (LCD) BOARD

6-3

6-4

CIRCUIT DIAGRAM - FRONT (LCD) BOARD
KEY PART

6-4

PCB LAYOUT - MCU BOARD

7-1

7-1

CIRCUIT DIAGRAM - MCU BOARD

7-2

7-2

CIRCUIT DIAGRAM - MCU BOARD
MEMORY PART

7-3

7-3

CIRCUIT DIAGRAM - MCU BOARD
SUB PART

7-4

7-4

8-1

PCB LAYOUT - POWER BOARD (TOP VIEW)

8-1

8-2

PCB LAYOUT - POWER BOARD (BOTTOM VIEW)

8-2

CIRCUIT DIAGRAM - POWER BOARD

8-3

8-3

CIRCUIT DIAGRAM - POWER BOARD
AUDIO PART

8-4

8-4

CIRCUIT DIAGRAM - POWER BOARD
REC PART

8-5

8-5

SET MECHANICAL EXPLODED VIEW

9-1

9-1

22

11

38

42

20

39

43

35

27

16

25

26

10

37

34

37

40

25

41

30

31

9

21

12

A

(

)

9-2

MECHANICAL & ACCESSORIES PARTS LIST

10 994000003392 CD MECHANISM DA11B3VF (SANYO)
11
16
20
21

996510000933
996510003744
996510003745
996510003746

CD DOOR SWITCH 1P2T
CD DOOR SPRING
FRONT CABINET
REAR CABINET

22
25

26 996510000397
27

30 996510003764 CASS. DECK MECHANISM CT302

31 996510003741 RECORD SPRING PLATE
32 996510003742 CASSETTE DOOR SPRING
34 996510003758 CASSETTE DOOR
35 996510003761 CD TRAY
37 996510003759 CASS KEY DOOR

38 996510003747
39 996510003748
40 996510003749

41
42 996510003756

43
ANT 996510003766 ANT WIRE ASSEMBLY L2500MM 2P
W2 996510002328 16P FFC CABLE 100MM P=1.0MM
W3 996510003765 22P FFC CABLE L140MM P1.25MM
W4

996510003757
994000001295

994000005115

996510003760

996510003762

996510002328

CD DOOR
DAMPER GEAR ASS'Y
CD DAMPER PINK COLOR 40DEG
CD DAMPER BLACK 658PH

VOL KNOB
POWER BUTTON
CONTROL KEYS
CASS KEY WITH HOLDER
DISPLAY LENS

POWER LIGHT GUIDE

16P FFC CABLE 100MM P=1.0MM

W5
W6
W7
W8 !
W9 996510003743 CASSETTE KEY DOOR SPRING

Note: Only these parts mentioned in the list are

996510003763
996510003767
996510003768
996510003769

normal service parts.

DUST COVER
WOODEN SPEAKER
REMOTE CONTROL
SWITCHING POWER SUPPLY 13V1.4A

LEFT+RIGHT

D

D

W

5

D

D

9-3

ELECTRICAL PARTSLIST

MAIN BOAR

CF501 996510003722 FM CER. DISCRIMINATOR J10.7C U1
CF502 996510003723 FM CERAMIC FILTER LT10.7MS2 U2
D304 996510003726 SCHOTTKYBARRIER DIODE PRLL5U3
D306
DAB500

IC301
IC500 996510003733 I.C. UTCLD1117/A 1.8V SOT-223 Y1
IC501 996510003732 I.C. TB2132FNG
IC502
IC503

IC801
IC802 994000005753 I.C. D9258PH C476
L534 996510003728 BOBBIN COIL 2 1/2T CN303
L535 996510003729 BOBBIN COIL 3 1/2T MD6B-03F44 CN401
L536 996510003734 SPRING COIL 3.5X0.5X5 1/2T CN501

Q501 996510003718 TRANSISTOR KTC-8550C HP401
Q510 996510003718 TRANSISTOR KTC-8550C HP402
Q802 996510003718 TRANSISTOR KTC-8550C IC300
Q803 996510003718 TRANSISTOR KTC-8550C IC401
TC530 994000002418 TRIMMER CAP 220VDC 50%-0% IC402

996510003726
996510003725

996510003731

994000003215
996510003731

996510003730

SCHOTTKYBARRIER DIODE PRLL
DAB TUNER MODULE U5

I.C. V REGULATOR LD1117-3.3 U7

RDS IC SAA6581T
I.C. V REGULATOR LD1117-3.3

I.C. SAA7824HL/M1A 557 C401

U4

MCU BOAR

996510003740
996510003736
996510003733
996510003737
996510003739

996510003738
996510003735

POWER BOAR

994000003217
994000003217
996510000380
996510001054
996510003842

996510003840
996510003841
996510003843
996510003715
996510003846

I.C. WM8725ED 14-PIN SOIC
I.C SST39VF800A-70-4C-EKE W/S
I.C. UTCLD1117/A 1.8V SOT-223
I.C HY57V641620ETP-7 64M SDRA
I.C. TCC760

I.C. MAX809STR SOT-23
X'TAL 24.000MHZ 20PF +/-20PPM

AL.E.CAP 3300UF 25V
AL.E.CAP 3300UF 25V
PUSH TERMINAL JACK PST-418

6.5MM DC JACK (DJ32-2)
USB CONNECTOR 4PINS

3.5MM STEREO JACK

3.5MM AUX IN JACK
I.C. ATMEGA88-20AU TQFP W/SW
I.C. TDA1517 SOT110
I.C. SC7314 SELECTOR & E_VOL

VD533 996510003727 DIODE 1SV262 IC403 996510003845 I.C. LP2950ACZ-3.3 TO-92
VD534 996510003727 DIODE 1SV262 IC405 996510003844 I.C. VOLTAGE REGULATOR
X501 996510003724 CRYSTAL 75KHZ 20PF +/-20PPM
X502 994000003209 CRYSTAL 4.332MHZ HC-49/S
X801 994000005742 CRYSTAL 8.4672 MHZ 20PF

FRONT BOAR

D701 994000005763 LED INGICATOR RED
D702 996510001423 LED INDICATOR 3mm WHITE
IC701 996510001064 IC ET8861S (FOR LCD DRIVER)
IR701 994000005759 INFRARED RECEIVER IRM502H-S
LCD701 996510003720 SEGMENT LCD DISPLAY

SW701 996510003721 TACT SWITCH TSJ-064301-250 Q411 996510003718 TRANSISTOR KTC-8550C
SW702 996510003721 TACT SWITCH TSJ-064301-250 Q601 996510003716 TRANSISTOR 2SC2712GR
SW703 996510003721 TACT SWITCH TSJ-064301-250 Q604 996510003718 TRANSISTOR KTC-8550C
SW704 996510003721 TACT SWITCH TSJ-064301-250
SW705 996510003721 TACT SWITCH TSJ-064301-250 SW601 994000002397 REC SWITCH 6P2T

SW706 996510003721
SW707 996510003721
SW708 996510003721
SW709 996510003721
SW710 996510003721

TACT SWITCH TSJ-064301-250
TACT SWITCH TSJ-064301-250
TACT SWITCH TSJ-064301-250
TACT SWITCH TSJ-064301-250
TACT SWITCH TSJ-064301-250

IC601
L406 996510000388
L407 996510000388

L408 996510000388
L409 996510000388
L420 994000003226
Q401 996510001414
Q402 996510001414

Q405 996510001414
Q406 996510003717

T601 996510001408 AM OSC BLACK
X300 996510003839

996510001411 I.C.D7312/D7312CP

CHOKE COIL 8UH 3A1941N
CHOKE COIL 8UH 3A1941N

CHOKE COIL 8UH 3A1941N
CHOKE COIL 8UH 3A1941N

AC LINE FILTER 400UH -30%
TRANSISTOR KTB772
TRANSISTOR KTB772

TRANSISTOR KTB772
TRANSISTOR KTD882 (KEC)

CRYSTAL 32.768KHZ 12.5PF

SW711 996510003721
VR701 996510003719

TACT SWITCH TSJ-064301-250 Note: Only these parts mentioned in the list are
ROT. ENCODER normal service parts.