Philips FWM-397 Service manual

MP3 Mini Hi-Fi System

FWM397

-/55/78/77/BK/85

CONTENTS

Technical specification ..................................................................1-2

Service measurement setup..........................................................1-3

Service aids .................................................................................1-4

Instructions on CD playability ................................................2-1..2-2

Disassembly diagram............ ................................................3-1..3-2

Block diagram ................................................................................4-1

Wiring diagram ..............................................................................4-2

Main board

Circuit diagram .........................................................................5-1

Layout diagram .........................................................................5-2

AMP board

Circuit diagram ..................................................................6-1..6-2

Layout diagram ..................................................................6-3..6-4

Display/Key board

Circuit diagram .........................................................................7-1

Layout diagram ..................................................................7-2..7-3

MCU board

Circuit diagram .........................................................................8-1

Layout diagram ..................................................................8-2..8-3

AC Board

circuit diagram. .........................................................................9-1

layout diagram ..........................................................................9-2

CD Board

circuit diagram. .......................................................................10-1

layout diagram ...............................................................10-2..10-3

Exploded view diagram ...............................................................11-1

Mechanical parts list ....................................................................11-2

Electrical parts list...............................................................12-1..12-4

Revision list..................................................................................13-1

©

Copyright 2010 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 LX 1013 Service Audio Subject to modification

Version 1.1

3141 785 32661

TECHNICAL SPECIFICATION

1 - 2

AMPLIFIER

RMS output power

1KHz (Low channel-both channels driven) .......

............................................................. 60W per channel

10KHz (High channel-both channels driven) ....

............................................................. 60W per channel

Total output power ...........................................240 W

Signal-to-noise ratio .......................... 67 dB A (IEC)

Frequency response .......................... 60 – 16000 Hz

Input sensitivity

AUX ................................................. 1500mV/2000mV

Output

Speakers .................................................................... 6 Ω

(1) (6 Ω, 1 kHz, 10%THD)

CD/MP3-CD PLAYER

Number of programmable tracks ......................... 40

Frequency response ............. 60 – 20000 Hz -3dB

Signal-to-noise ratio ....................................... 75 dB A

Channel separation .......................... 50 dB (1 kHz)

Total harmonic distor tion................................. < 1.5%

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

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

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

TUNER

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

AM wave range (9 kHz) ............... 531 – 1602 kHz

AM wave range (10 kHz)............. 530 – 1700 kHz

Tuning grid ............................................................9/10 kHz

Number of presets ........................................................ 40

Antenna

FM ....................................................................... 75 Ω wire

AM .............................................................. Loop antenna

(128 kbps advised)

USB PLAYER

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

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

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

Number of tracks/titles ...................... maximum 999

SPEAKERS

System 2-way; double port bass reflex

Impedance ........................................................................ 6 Ω

Woofer ........................................................................... 5.25”

Tweeter........................................................................... 1.75”

Dimensions (w x h x d) . 249 x 344 x 250 (mm)

Weight............................................................. 3.65 kg each

GENERAL

Material/finish ................................... Polystyrene/Metal

AC Power ........................... 110 – 127 / 220 – 240V;

.......................................................50/60 Hz, Switchable

Power Consumption

Active ...................................................................... 100 W

Standby ..................................................................≤ 15 W

Dimensions (w x h x d) .. 265 x 310 x 403 (mm)

Weight (without speakers) ................................. 9.1 kg

Specifications and external appearance are
subject to change without notice.

e

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=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)

RF Generator

e.g. PM5326

Ri=50:

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

-

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

or Universal Test Cassette

LF Generator

e.g. PM5110

Fe SBC420 4822 397 30071

DUT

L

R

S/N and distortion met

e.g. Sound Technology ST170

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

SERVICE AIDS

1-4

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

!

.

ESD

CLASS 1

LASER PRODUCT

Lead free

INSTRUCTIONS ON CD PLAYABILITY

Customer complaint

"CD related problem"

Set remains closed!

check playability

1

2 - 1

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

N

Y

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

4 is recommended

add Info for customer

"SET OK"

2

return set

1 - 4 For description - see following pages

Exchange CDM

INSTRUCTIONS ON CD PLAYABILITY

2 - 2

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

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

10seconds

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

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.

DISASSEMBLY DIAGRAM VIEW
PART 1

3 - 1

3 - 1

DISASSEMBLY DIAGRAM VIEW
PART 2

3 - 2

3 - 2

SET BLOCK DIAGRAM

4 - 1 4 - 1

SET WIRING DIAGRAM

4 - 2 4- 2

CIRCUIT DIAGRAM - MAIN BOARD

5 - 15 - 1

LAYOUT DIAGARM - MAIN BOARD

5 - 2 5 - 2

CIRCUIT DIAGRAM - AMP BOARD
Hi POWER PART

6 - 1

6 - 1

LAYOUT DIAGARM - AMP BOARDAMP BOARD
Hi POWER PART

6 - 2

6 - 2

CIRCUIT DIAGRAM - AMP BOARD
LOW POWER PART

6 - 3

6 - 3

LAYOUT DIAGARM - AMP BOARDAMP BOARD
LOW POWER PART

6 - 4 6 - 4

CIRCUIT DIAGRAM - DISPLAY/KEY BOARD

7 - 1 7 - 1

LAYOUT DIAGARM - DISPLAY/KEY BOARD
COMPONENT SIDE VIEW

7 - 2 7 - 2

LAYOUT DIAGARM - DISPLAY/KEY BOARD
COPPER SIDE VIEW

7 - 3

7 - 3

CIRCUIT DIAGRAM - MCU BOARD

8 - 1 8 - 1

LAYOUT DIAGARM - MCU BOARD
COMPONENT SIDE VIEW

8 - 2 8 - 2

LAYOUT DIAGARM - MCU BOARD
COPPER SIDE VIEW

8 - 3

8 - 3

CIRCUIT DIAGRAM - AC BOARD

9 - 1

9 - 1

LAYOUT DIAGRAM - AC BOARD

9 - 2

9 - 2

CIRCUIT DIAGRAM - CD BOARD

10 - 1

10 - 1

LAYOUT DIAGRAM - CD BOARD
COMPONENT SIDE VIEW

10 - 2

10 - 2

LAYOUT DIAGRAM - CD BOARD
COPPER SIDE VIEW

10 - 3

10 - 3

EXPLODED VIEW DIAGRAM

11 - 1 11 - 1

434

333

218

11 - 2

MECHANICAL PARTSLIST

11 996510012567 FERRITE CORE 17.5x10.7x28.5mm
82 994000003669 CD MECHANISM (SANYO) DA11VF
101 996510014307 LED HOLDER

996510014310 MAGNET 27x16x4mm 546g

102 996510014308 LCD BRACKET

103 996510014309 LCD LIGHT GUIDE
126 996510015498 CLUSTER BUTTON
201 996510015487 FRONT CABINET
202 996510015488 3CDC DOOR
203 996510015489 ALBUM BUTTON

204 996510015490 TITLE BUTTON
205 996510015491 STOP BUTTON
206 996510015492 PLAY BUTTON
207 996510015493 MODE BUTTON
208 996510015494 PROGRAM BUTTON

209 996510014362 DISPLAY LENS (PMMA)
210 996510015495 POWER BUTTON
212 996510014355 VOL KNOB
213 996510014369 VOL RING
215 996510015499 MIDDLE STRAP OF SOUND BUTTON

216 996510015500 MIDDLE STRAP L

127 996510015496 JAZZ-POP BUTTON

217 996510015501 MIDDLE STRAP R
218 996510015497 ROCK-CLASSIS BUTTON
219 996510015502 CD BUTTON

220 996510015503 COSMETIC COVER UP
221 996510015504 COSMETIC COVER DOWN
227 996510015652 USB REC BUTTON
228 996510015507 USB DELETE BUTTON
229 996510015653 MAX SOUND BUTTON

230 996510015509 USB RING
231 996510015510 MIC KNOB
232 994000001276 PANEL LEFT
233 994000001277 PANEL RIGHT
234 99651001

235 996510009414 CHASSIS PLASTIC
236 994000001285 TOP COVER
237 996510015505 DISPLAY TOP BAR
333 996510014363 POWER LIGHT GUIDE
434 996510000439 PHILIPS LOGO

1111 99651001
J003 996510015651 15P FFC.1.25mm L=100mm
J005 996510015650 18P FFC.1.25mm L=190mm
J006 996510001328 10P FFC 1.25mm L160mm
T001

996510014340 TRANSFORMER EI76

!

9319 REAR CABINET

8665 3CD MECHA PART DA11VF

TUN 996510014874 TUNER MODULE MT000M

Note: Only these parts mentioned in the list ar

normal service parts.

e

ELECTRICAL PARTSLIST

Y

Y

e

.

MAIN BOARD ASSEMBL

IC601 996510005250 IC TDA7468D
IC602 994000001201 IC NJM4556AM
IC603 994000000253 IC (SAMSUNG) KA7808
IC606 994000004549 IC KA7805E
IC607 994000001247 IC HEF4094BT

IC608 994000001247 IC HEF4094BT
IC609 994000001201 IC NJM4556AM
Q601 996510001308 TRANS. 2SD1936U
Q602 996510001308 TRANS. 2SD1936U
Q603 996510010292 SMD TRANSISTORS MMBT3904

Q604 996510010292 SMD TRANSISTORS MMBT3904
Q605 994000004145 TRANSISTORS B772Y (160-320)
Q606 996510010292 SMD TRANSISTORS MMBT3904
Q607 996500038609 TRANSISTORS 2W 8050C
Q608 996510010292 SMD TRANSISTORS MMBT3904

Q609 994000004145 TRANSISTORS B772Y (160-320)
Q611 996500038609 TRANSISTORS 2W 8050C
Q613 996500038610 TRANSISTORS 2W 8550C
Q614 996510010292 SMD TRANSISTORS MMBT3904
Q615 996510010292 SMD TRANSISTORS MMBT3904

12 - 1

AMP BOARD ASSEMBL

L701 994000001217 AIR COIL 6X18.5T (0.5MM)
L702 994000001217 AIR COIL 6X18.5T (0.5MM)
L703 994000001217 AIR COIL 6X18.5T (0.5MM)
L704 994000001217 AIR COIL 6X18.5T (0.5MM)
IC702 996510001314 IC (SANYO) STK433-070

IC703 994000001201 IC NJM4556AM
Q702 996500038609 TRANSISTORS 2W 8050C
Q703 996510014338 TRANSISTOR BC556B
Q704 996500038609 TRANSISTORS 2W 8050C
Q707 996510014338 TRANSISTOR BC556B

Q709 996500041825 TRANSISTORS 2N5551
Q710 996510014338 TRANSISTOR BC556B
Q712 996510014338 TRANSISTOR BC556B
Q715 996500038609 TRANSISTORS 2W 8050C
Q716 996500041825 TRANSISTORS 2N5551

Q721 996500041825 TRANSISTORS 2N5551
Q722 996510014338 TRANSISTOR BC556B
Q727 996510014338 TRANSISTOR BC556B
Q728 996500041825 TRANSISTORS 2N5551
SPK701 996510001315 SPK JACK (R/R/BLUE/BLUE/BLKx4)

AUX701 994000001221 V/RCA JACK 2P

Note: Only these parts mentioned in the list ar

normal service parts

Y

12 - 2

ELECTRICAL PARTSLIST

DISPLAY/KEY BOARD ASSEMBL

D904 996500042438 LED LAMP 2x5x7mm (WHITE)
D914 996510005256 LED LAMP 4mm (WHITE)
IC901 996510002124 IC (HOLTEK) HT1622
IC902 996510003985 IC ECHO PROCESSOR PT2399S
IC903 996510003984 IC CYT78L05 (TO-92)

Q901 996510010292 SMD TRANSISTORS MMBT3904
Q903 996510008369 TRANSISTORS MMBT8050D (SOT23)
Q906 996500039345 TRANSISTORS 2W 8050D
Q910 994000003937 SMD TRANSISTORS PMBT3906
Q970 996510000337 SMD TRANSISTORS BC847B

Q971 996510006601 SMD TRANSIST BC857B
Q972 996510000337 SMD TRANSISTORS BC847B
Q974 996510000337 SMD TRANSISTORS BC847B
Q975 996510000337 SMD TRANSISTORS BC847B
Q981 996510006601 SMD TRANSIST BC857B

Q982 996510000337 SMD TRANSISTORS BC847B
Q983 996510000337 SMD TRANSISTORS BC847B
Q984 996510000337 SMD TRANSISTORS BC847B
SW901 994000001243 TACT SWITCH
SW902 994000001243 TACT SWITCH

SW903 994000001243 TACT SWITCH
SW904 994000001243 TACT SWITCH
SW905 994000001243 TACT SWITCH
SW906 994000001243 TACT SWITCH
SW907 994000001243 TACT SWITCH

SW908 994000001243 TACT SWITCH
SW909 994000001243 TACT SWITCH
SW910 994000001243 TACT SWITCH
SW911 994000001243 TACT SWITCH
SW912 994000001243 TACT SWITCH

SW913 994000001243 TACT SWITCH
SW914 994000001243 TACT SWITCH
SW915 994000001243 TACT SWITCH
SW916 994000001243 TACT SWITCH
SW917 994000001243 TACT SWITCH

SW918 994000001243 TACT SWITCH
SW919 994000001243 TACT SWITCH
SW920 994000001243 TACT SWITCH
SW921 994000001243 TACT SWITCH
SW922 994000001243 TACT SWITCH

SW923 994000001243 TACT SWITCH
SW925 994000001243 TACT SWITCH
SW926 994000001243 TACT SWITCH
SW927 994000001243 TACT SWITCH
SW928 994000001243 TACT SWITCH

SW929 994000001243 TACT SWITCH
SW930 994000001243 TACT SWITCH
IR901 994000000325 OPTIC SENSER (OPTO..)
J005 996510015476 5P FFC.1.25mm L=50mm
LCD901 996510014305 LCD DISPLAY

Y

Y

Y

e

.

12- 3

ELECTRICAL PARTSLIST

DISPLAY/KEY BOARD ASSEMBL

CN905 996510000344 USB SOCKET
CN908 994000001244 V/PHONE JACK 3.5MM
CN909 994000001244 V/PHONE JACK 3.5MM
CN910 994000001244 V/PHONE JACK 3.5MM
VR901 996510006586 ROTARY VOLUME F-122KGP B50K L

VR902 996510003986 ROTARY VOLUME
VR903 994000001241 ROTARY ENCODER
IC701 996510001314 IC (SANYO) STK433-070

CD BOARD ASSEMBL

IC501 996510009311 IC BU9543KV (SMD)
IC502 996510009310 IC BA5826FP
IC505 994000001247 IC HEF4094BT
J001 996510015477 26P FFC.1.25mm L=80mm
Q1523 996510000317 SMD TRANSISTORS BC817-25

Q501 996510000315 SMD TRANSISTORS BC807-25
Q502 994000001193 TRANSISTORS KSB772YS
Q522 996510000317 SMD TRANSISTORS BC817-25
Q523 996510000992 TRANSISTORS SPD18P06P
SW501 994000004552 DETECT SWITCH

SW502 994000004552 DETECT SWITCH
SW503 994000004552 DETECT SWITCH
SW504 994000004552 DETECT SWITCH
U532 996510035364 IC TDA7073A (SOT16) (-/55/BK)
X501 994000004551 CRYSTAL 16.9344MHZ +-20PPM

MCU BOARD ASSEMBL

IC101 996510015478 IC BX8800
IC102 996510009337 IC SST39VF800A-70 8M 3.3V TSOP
IC103 996510001318 IC 74LVC157APW
IC104 996510003990 IC SDRAM M12L16161A-7T
IC105 996510003993 IC V809R

IC106 996510015480
IC107 996510009335 IC LM1117S-1.8V SOT-223
IC108 996510015479 IC 74LVC2G04GW
IC191 996510015481 IC HT1381
Q101 994000003937 SMD TRANSISTORS PMBT3906

Q102 996510010292 SMD TRANSISTORS MMBT3904
X101 996510008326 CRYSTAL 12 MHzHC-49/US H=3.5mm
X102 996510015482 CRYSTAL 11.2896MHz
X191 994000004615 CRYSTAL 32.768KHZ 12.5PF
8001 994000004487 16P FFC 1MM L=170MM

8002 996510001327 23P FFC 1.25mm L80mm
8003 994000004457 5P FFC L=200MM(AA)

IC WM8782SEDS

Note: Only these parts mentioned in the list ar

normal service parts

ELECTRICAL PARTSLIST

Y

6

W

W

9

3

9

0

0

3

e

.

AC BOARD ASSEMBL

12 - 4

F802
F804
F805
F806
IC801 99400000283

J001 996510014304AC SOCKET UL APP
Q802 99650003860
Q804 99651000659
Q805 99651000659
SW801 99400000132

994000004599FUSE RADIAL T3.15A 250V

!

99651000242

!

996510002426CERAMIC FUSE 3.9x10.5mm

!

994000000585CERAMIC FUSE W/LEAD 2A/250V

!

CERAMIC FUSE 3.9x10.5mm

IC LM1117S-3.

TRANSISTORS 2W 8050C
TRANSISTOR BC547B TAPING
TRANSISTOR BC547B TAPING
SWITCH

ACCESSORIES

J001 994000001478 AC PLUG ADAPTOR
1007 996510003974 REMOTE CONTROL
10 994000001192 AM LOOP ANTENNA LAN-031
J010
J010

J011 994000001381 FM ANT (BLACK) 1M
J012 996510002103 CONN. CORD 3.5 ST/PLUGx2 500mm
SPK 996510015649 SPK BOX(Single) (only for -/55/77)
SPK 996510015484 SPK BOX(Single) (only for -/78/BK)

Note: Only these parts mentioned in the list ar

996500037714 AC CORD SET VDE/BRAZIL APP 1.8 (only for -/55/78/BK)

!

994000001706 AC CORD SET IRAM APP 6FT(only for -/77)

!

normal service parts

REVISION LIST

V

Version 1.0 (3141 785 32660)

* Initial Release

V

Version 1.1 (3141 785 32661)

* P12-3 is revised.Changed U532 for /55/BK (2010/4/1).

13-1