Philips MCM-398-D Service manual

Micro System

MCM398D/all version

TABLE OF CONTENTS

Page

PCBs Location ......................................................................1-2

Specifi cations .......................................................................1-3

Measurement Setup .............................................................1-4

Service Aids, Safety Instruction, etc .....................................1-5

CD Playability Test .....................................................1-6 to 1-8

Software Version Checking .....................................................2

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

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

Main & HP/ AUX Board............................................................5

Front (Display) & USB Jack Board ..........................................6

CMusIC (CD) Board ................................................................7

Set Mechanical Exploded View & Parts List ............................8

Revision 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 0724 Service Audio Printed in The Netherlands Subject to modification

Version 1.1

CLASS 1

LASER PRODUCT

© 3141 785 31831

PCBS LOCATION

1-2

SPECIFICATIONS

1-3

AMPLIFIER

Output power ........................................................................

............... 2 x 50 W RMS / 2 x100 W music power

Signal-to-noise ratio .......................... t 62 dBA (IEC)

Frequency response ......... 40 – 15000 Hz, ± 3 dB

Impedance loudspeakers ......................................... 6 :

Impedance headphones ........................................ 32 :

CD/MP3/WMA-CD PLAYER

Number of programmable tracks ......................... 20

Frequency range .................................. 20 – 20000 Hz

Signal-to-noise ratio ............................................ 75 dBA

Channel separation .......................... t 60 dB (1 kHz)

Total harmonic distortion ........................... < 0.003%

MPEG 1 Layer 3 (MP3-CD) .......... MPEG AUDIO

MP3-CD bit rate ....................................... 32-256 kbps

(128 kbps advised)

Sampling frequencies ....................... 32, 44.1, 48 kHz

USB PLAYER

USB ................................................................. 12 Mb/s, V1.1

......................................... support MP3 and WMA files

Number of albums/folders ................. maximum 99

Number of tracks/titles ...................... maximum 500

FM

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

Sensitivity at 75 :

– mono, 26 dB signal-to-noise ratio ............ 2.8 µV

– stereo, 46 dB signal-to-noise ratio ........ 61.4 µV

Selectivity ................................................................. t 28 dB

Total harmonic distor tion ..................................... d 5%

Frequency response ..... 63 – 12500 Hz (± 3 dB)

Signal-to-noise-ratio ...................................... t 50 dBA

SPEAKERS

2-way Bass reflex system
Dimensions (w x h x d) . 140 x 228 x 247 (mm)

GENERAL INFORMATION

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

Dimensions (w x h x d) .. 152 x 228 x 273 (mm)
Weight (with/without speakers)

............................................................... approx. 6.2/3.65 kg

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

Power consumption Standby ....................... < 12 W

MEASUREMENT SETUP

CD

Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3)
L.P.F. = 13

th

order filter 4822 395 30204

1-4

DUT

Low pass filter 22kHz

L

R

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

SERVICE AIDS

1-5

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

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.

WARNING

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

!

.

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

CLASS 1

LASER PRODUCT

Lead free

INSTRUCTIONS ON CD PLAYABILITY

Customer complaint

"CD related problem"

Set remains closed!

check playability

1

1-6

playability

ok ?

Y

Play a CD

for at least 10 minutes

check playability

playability

ok ?

Y

N

"fast" lens cleaning

check playability

playability

ok ?

N

3

For flap loaders (= access to CD drive possible)
cleaning method

4 is recommended

Standard repair procedure

N

Y

clean the lens

check playability

playability

ok ?

check "EYE-Pattern"

4

Y

N

5

return set

add Info for customer

"SET OK"

return set

1 - 7

For description - see following pages

2

replace Signal Processor

return set

EYE-Pattern

ok ?

Y

check Laser current

Laser current

ok ?

Y

check CD Drive offsets

Y

CD Drive offsets

ok ?

N

replace CD Drive

6

return set

N

replace CD Drive

7

return set

N

replace CD Drive

return set

INSTRUCTIONS ON CD PLAYABILITY

1-7

1

PLAYABILITY CHECK

For sets which are compatible with CD-RW discs

use CD-RW Printed Audio Disc....................7104 099 96611

TR 3 (Fingerprint)
TR 8 (600µ Black dot) maximum at 01:00

• playback of these two tracks without audible disturbance
playing time for: Fingerprint ≥10seconds

Black dot from 00:50 to 01:10

• jump forward/backward (search) within a reasonable time

For all other sets

use CD-DA SBC 444A..................................4822 397 30245

TR 14 (600µ Black dot) maximum at 01:15
TR 19 (Fingerprint)
TR 10 (1000µ wedge)

• playback of all these tracks without audible disturbance
playing time for: 1000µ wedge ≥10seconds

Fingerprint ≥10seconds
Black dot from 01:05 to 01:25

• jump forward/backward (search) within a reasonable time

4

LIQUID LENS CLEANING

Before touching the lens it is advised to clean the
surface of the lens by blowing clean air over it.
This to avoid that little particles make scratches on
the lens.

Because the material of the lens is synthetic and coated
with a special anti-reflectivity layer, cleaning must be done
with a non-aggressive cleaning fluid. It is advised to use
“Cleaning Solvent B4-No2”, available with codenumber
4822 389 10026.

The actuator is a very precise mechanical component and
may not be damaged in order to guarantee its full function.
Clean the lens gently (don’t press too hard) with a soft and
clean cotton bud moistened with the special lens cleaner.

The direction of cleaning must be in the way as indicated in
the picture below.

2

CUSTOMER INFORMATION

It is proposed to add an addendum sheet to the set which
informs the customer that the set has been checked
carefully - but no fault was found.
The problem was obviously caused by a scratched, dirty or
copy-protected CD. In case problems remain, the customer
is requested to contact the workshop directly.
The lens cleaning (method 3) should be mentioned in the
addendum sheet.

The final wording in national language as well as the printing
is under responsibility of the Regional Service Organizations.

3

FAST LENS CLEANING (dry brush)

Use lens cleaning CD

SBC AC300...........................................9082 100 00043

Insert the lens cleaning CD, press PLAY and follow the
voice guide´s instructions on the CD.

Sanyo DA12T3

CD Drive

A

A

F

C

B

E

C

D

E

VCC

B

VREF

F

D

9

10

11

12

13

14

15

16

1800

+5V_HF

VrefCD10

A

D

E

B
C

F

GND

8

E

D

A

B

C

F

Laser power control

100n

2878

470n

2876

3821

1R

1K

3823

2880

33p

+5V

BC807-40

7879

3817

47R

3820

4R7

47R

3819

1n

2879

2877

47u

1

8

4

7811-A

LM358D

3

2

10K

3822

47R

3818

2841

100n

47n

2869

+5V_HF

LASER DIODE

U >250mV

->Laser damaged !

4,6V

3V

3,3V

3,9V

2V

0,17V

0,17V

Sanyo
DA12T3

HF-Amplifier

D3

D2

D1

680R

3905

3903
3K3

BC847B

7877

47n

2818

1K5

3902

5

7

4

2

1

6

3

64

8

9

10

11

470R

3893

+3.3V

2K2

3908

10K

3923

BC847B

7878

BC847B

7876

4n7

2813

3896
100R

220u

2885

2881
560p

47n

2887

560R

3901

2883
470n

2817

4u7

3n3

2814

3898
220R

3895

27K

470n

2884

+3.3V

3909

820R

3907

100R

3920

33K

3897

2882

82p

3K3

3904

2K7

3899

3906

470R

+5V_HF

HFIN

VrefCD10

100p

28152816

22n

LDON
to 3826,3827

VREF GE

VDDA1

VRIN

VSSA1

ISLICE

LD

ON

D1

D2

D3

D4

HFIN

HFREF

IREF

CD_DA: 0V / CD_RW: 3V

Σ (A-D)

800mVpp

TB = 0.5µs/div

EYE-PATTERN

1,8V

1,2V

2,4V

2,6V

0,65V

INSTRUCTIONS ON CD PLAYABILITY

1-8

5

EYE-PATTERN SIGNAL – JITTER MEASUREMENT

Measure the signal on the input of the Signal processor
using an analog oscilloscope. Please find the exact
measuring point in your Service Manual.

See below examples of the signal. Amplitude should read at
least 700mVpp using SBC444A.

6

CD DRIVE – LASER CURRENT MEASUREMENT

The laser current can be measured as a voltage drop on a
resistor. The resistor is marked in every Service Manual.
The value depends on the type of CD drive.

typical value most probably defect

VAMxxxx : 150-230mV ≥350mV
MCDxx : 170-230mV ≥300mV
DA1x : 210-250mV ≥350mV
DA2x : 175-200mV ≥250mV
Use SBC444A (CD-DA) for measurement.

If the oscilloscope shows a signal like the ‘bad’ one, and/or
the amplitude decreases within 1 minute - the CD drive has
to be replaced.

good

bad

7

CD DRIVE – OFFSET MEASUREMENT

The photodiodes of the CD-drive may have an offset. These
offsets have to be compensated by the signal processor.
High offsets can lead to poor playability of some CDs
(skipping tracks).

To measure the offset values, start the Service Test
Program - section “Focus Test” without a CD.

The offsets can be measured with a DC Millivoltmeter
directly on the connector (see drawing below). Pin
numbering varies from drive to drive.

The values from diode A-D should read 0±10mV.
Diodes E and F are less critical.

If one of the offsets is higher than ±10mV the CD drive has
to be replaced. Otherwise replace the Signal Processor.

SOFTWARE VERSION CHECKING

2-1

2-1

How to read software version,

1. Press and hold DISPLAY and SOURCE buttons then plug A/C to power on,
LCD Display shows existing software version "S 0.12".

2. During shows "S 0.12", press “STOP” button to show firmware version.

SET BLOCK DIAGRAM

3-1

3-1

SET WIRING DIAGRAM

4-1

4-1

5-1 5-1

MAIN BOARD

TABLE OF CONTENTS

Main PCB - Layout Top View ........................................... 5-2

Main PCB - Layout Bottom View .....................................5-3

Main PCB - Circuit Diagram Part1 ....................................5-4

Main PCB - Circuit Diagram Part2 ....................................5-5

Headphone & AUX PCB - Circuit Diagram .......................5-6

5-2 5-2

PCB LAYOUT - MAIN BOARD (TOP VIEW)

5-3

PCB LAYOUT - MAIN BOARD (BOTTOM VIEW)

5-3

CIRCUIT DIAGRAM - MAIN BOARD
PART1

5-4

5-4

CIRCUIT DIAGRAM - MAIN BOARD
PART2

5-5

5-5

5-6

CIRCUIT DIAGRAM - HP & AUX BOARD

5-6

6-1 6-1

FRONT(DISPLAY) & USB

JACK BOARD

TABLE OF CONTENTS

Display PCB - Layout Top View ....................................... 6-2

Display PCB - Layout Bottom View .................................6-3

Display PCB - Circuit Diagram .........................................6-4

USB PCB - Circuit Diagram ..............................................6-5

6-2 6-2

PCB LAYOUT - DISPLAY BOARD (TOP VIEW)

6-3

PCB LAYOUT - DISPLAY BOARD (BOTTOM VIEW)

6-3

6-4

CIRCUIT DIAGRAM - FRONT(DISPLAY) BOARD

6-4

CIRCUIT DIAGRAM - USB BOARD

6-5

6-5

7-1

CMUSIC BOARD

7-1

TABLE OF CONTENTS

CMUSIC PCB - Layout Top View .....................................7-2

CMUSIC PCB - Layout Bottom View ................................7-3

CMUSIC PCB - Circuit Diagram ....................................... 7-4

7-2

PCB LAYOUT - CMUSIC BOARD (TOP VIEW)

7-2

7-3

PCB LAYOUT - CMUSIC BOARD (BOTTOM VIEW)

7-3

CIRCUIT DIAGRAM - CMUSIC BOARD
CD & TUNER PART

7-4

7-4

CIRCUIT DIAGRAM - CMUSIC BOARD
USB PART

7-5

7-5

SET MECHANICAL EXPLODED VIEW

8-1

8-1

8-2

MECHANICAL & ACCESSORIES PARTS LIST

1 996510004576 CD LOADER COVER
2 996510001086 CHROME RING-LOADER COVER
3 996510004572 DISPLAY LENS

4 996510004573 LEFT FRONT PANEL I 996510001913 IPOD HOLDER-60GB-VIDEO-INJ.
5

6
7 996510001448 STANDBY BOTTON LIGHT GUIDE L
8 996510004571 CONTROL KEY-DOCKING M
22

24 996510004581
25 996510004569

30 996510000868 CD DAMPER PINK 658F
31 996510004568 BOTTOM CABINET

35
37
38

39 996510001438 VOLUME KNOB RING
40

996510004567

996510004577

996510004566

996510004578
996510004570
996510004574

996510001082

FRONT CABINET J 996510001914 IPOD HOLDER-MINI-INJ.

CONTROL KEY SET - LEFT K 996510001915 IPOD HOLDER-NANO-INJ.

TOP CABINET N

F
G
H 996510001912 IPOD HOLDER-60GB-INJ.

OREVOC POT57540001569932

1

2

996510001099
996510001911

996510001916
996510001917
996510001918
994000005786

996510005461 BS POWER SUPPLY CORD

AM LOOP FRAME ASSY
IPOD HOLDER-40GB-INJ.

IPOD HOLDER-20GB-INJ.
IPOD HOLDER-30GB-PHOTO-INJ
IPOD HOLDER-30GB-VIDEO-INJ.
CD MECHANISM DA11VF(SANYO)

/12

1.83M /05

Note: Only these parts mentioned in the list are

normal service parts.

D

D

D

D

D

8-3

ELECTRICAL PARTSLIST

C MUSIC BOAR

IC401 994000003199
IC901 996510004550 IC (PROGRAMMED) SAA7838H/N3 SW705 996500039269 TACT SWITCH
IC902
IC903
Q204 994000005729 TRANSISTOR KTA1273 TO-92L SW708 996500039269 TACT SWITCH

Q211 994000005729 TRANSISTOR KTA1273 TO-92L SW709
Q901 996510000378 TRANSISTOR BST50 SW710
Q909 996500039268 TRANSISTOR KTC-8050C
Q910 996500039268 TRANSISTOR KTC-8050C SW712 996500039269 TACT SWITCH
IC905 994000005751 I.C. 74HC4520DB SSOP16 SW713 996500039269 TACT SWITCH

IC906
IC907
IC908 996510001069 IC D6208 SOP8

L101 994000005754
Q204 994000005755

Q211 994000005755
Q909 996500039268
Q910 996500039268

U201
U202 996510000738 IC EPROM ICE27C512-70?PCW

X901
X902 994000003208 CRYSTAL 32.768KHZ 12.5PF -10P
Y1
ZD2001 994000005744 ZENER DIODE 5V1 1/2W

994000005753
994000003272

994000005749
994000005748

994000005747

994000005742

994000005741

FRONT & USB BOAR

CON102 996510001071 USB JACK 4P ANGLE TYPE
D101 996510001072 LED INDICATOR D3 CLEAR BLUE
D102 996510001072 LED INDICATOR D3 CLEAR BLUE
D103 996510001072 LED INDICATOR D3 CLEAR BLUE
EN701 996510004552 ENCODER E1211A3V1NE0054

FB701 996510001060 FER. BEAN SBK160808T-601Y-S
IC701 996510001064 IC ET8861S (FOR LCD DRIVER)

LCD701 996510001061 LCD DISPLAY GS-34301+HSC-A/P
LED701 996510000394 LED INDICATOR RED4.3X2.98MM
LED702 996510004553

LED703 996510004553 LED INDICATOR D3mm WHITE
LED704 996510004553 LED INDICATOR D3mm WHITE
LED705 996510001422 LED INDICATOR BLUE 33B4SCA01
LED706 996510001422 LED INDICATOR BLUE 33B4SCA01
LED707

RS701
SW701
SW702
SW703

996510001422

996510001070
996500039269
996500039269
996500039269

IC HEF4094BT SW704 996500039269 TACT SWITCH

I.C. D9258PH SW706 996500039269 TACT SWITCH
IC M24C01-RDW6T SW707 996500039269 TACT SWITCH

SW711 996500039269

I.C. 74HC4094DB SSOP16
I.C. 74HC02DB SSOP14

FIXED INDUCTOR 33UH-K
TRANSISTOR KTA1273 TO-92L

TRANSISTOR KTA1273 TO-92L
TRANSISTOR KTC-8050C

TRANSISTOR KTC-8050C
IC OTI6888-G LQFP-64

CRYSTAL 8.4672 MHZ 20PF

CRYSTAL 14.318 MHZ 20PF

LED INDICATOR D3mm WHITE Q214 994000005727 TRANSISTOR 2SB562C TO-92MOD

LED INDICATOR BLUE 33B4SCA01

INFRARED RECEIVER SM3385B
TACT SWITCH
TACT SWITCH
TACT SWITCH

ZD701 996510004551

HP901 994000003229 HEADPHONE JACK D3.5MM
HP902 996510001073 EARPHONE CKX3.5-19S (3PIN)

C319 996510004554 CBB CAP HMFS-5 0.47UF 63V
C320 996510004554 CBB CAP HMFS-5 0.47UF 63V
CN301 996510000380 PUSH TERMINAL JACK PST-418
CN401 996510001073 EARPHONE CKX3.5-19S (3PIN)
CN402 996510004561 MINI DIN JACK 9PINS

D201 996510001053 RECTIFIER DIODE RL201
IC201 996510001057 IC S1117-33PIC TO-220F-3SL
IC202 996510001058 IC S7806PI TO-220F
IC301 996510004564 POWER AMPLIFIER IC TDA8922BJ
IC401 996510004563 I.C. LM324DG SOIC-14

IC501 996510001056 IC ET2314
IC601
IC801 996510004562 I.C. D4558
IC802 996500039259 I.C. PT4800(L) DIP-8 PIN
Q203 994000001436 TRANSISTOR 2SB1566-F

Q205 996500039268 TRANSISTOR KTC-8050C
Q208 996500039268 TRANSISTOR KTC-8050C

Q401 994000005755 TRANSISTOR KTA1273 TO-92L
Q501

Q881 994000003206 TRANSISTOR 8550D
Y601 994000003209 CRYSTAL 4.332MHZ HC-49/S
ZD201 996510004555 DIODE 10V 1/2W TCLLZ10V LL34
ZD205 996510004558 DIODE 6V8 1/2W TCLLZ6V8 LL34
ZD206 996510004560 DIODE 9V1 1/2W TCLLZ9V1 LL34

ZD351 996510004557 DIODE 5V6 1/2W TCLLZ5V6 LL34
ZD401 996510004556 DIODE 5V1 1/2W TCLLZ5V1 LL34

FRONT & USB BOAR

996500039269
996500039269

TACT SWITCH
TACT SWITCH
TACT SWITCH

ZENER DIODE BZX384-C3V3

HEADPHONE BOAR

MAIN BOAR

994000003215 RDS IC SAA6581T

996500039268

TRANSISTOR KTC-8050C

D

8-4

ELECTRICAL PARTSLIST

MAIN BOAR

ZD402 996510004556 DIODE 5V1 1/2W TCLLZ5V1 LL34
ZD405 996510004565 CHIP VARISTOR 14V 270PF
ZD406 996510004565 CHIP VARISTOR 14V 270PF
ZD407 996510004565 CHIP VARISTOR 14V 270PF
ZD408 996510004565 CHIP VARISTOR 14V 270PF

ZD501 996510004559 DIODE 8V2 1/2W TCLLZ8V2 LL34

Note: Only these parts mentioned in the list are

normal service parts.

REVISION LIST

1.0 Manual 3141 785 31830

Initial Service Manual released.

1.1 Manual 3141 785 31831

In this version, version /05 added.

1) P8-2 Mechanical and Accessories Partslist updated.

9-1