Philips FWM998/55 User manual

Version 1.1
3141 785 35431
Mini Hi-Fi System
FWM999X/77X 7
Published by LX 1130 Service Audio Subject to modification
© 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.
CONTENTS
Technical specification ..................................................................1-2
Version variation ...........................................................................1-2
Service measurement setup..........................................................1-3
Service aids .................................................................................1-4
Instructions on CD playability ................................................2-1..2-2
Block diagram................................................................................3-1
Wiring diagram ..............................................................................4-1
Disassembly diagram............ ................................................5-1..5-2
Main board
Circuit diagram .........................................................................6-1
Layout diagram..................................................................6-2..6-3
Display board
Circuit diagram ..................................................................7-1..7-2
Layout diagram..................................................................7-3..7-4
USB/SD board
Circuit diagram .........................................................................8-1
Layout diagram.........................................................................8-2
AMP Board
Circuit diagram. .................................................................9-1..9-2
Layout diagram..................................................................9-3..9-4
CD board
Circuit diagram .......................................................................10-1
Layout diagram..............................................................10-2..10-3
MCU Board
Circuit diagram. ...................................................................... 11-1
Layout diagram.............................................................. 11-2..11-3
Exploded view diagram ...............................................................12-1
FWM998/ 55/BK

Sound
• Output Power: 14000W PMPO
• Total Sound Power (RMS): 1300 W
• Sound Enhancement: MAX Sound, Dynamic Bass
Boost 3 steps, Incredible Surround, Digital Sound
Control 4 modes, Virtual Ambience Control
Loudspeakers
• Main Speaker: Bass Reflex Speaker System, 2 way,
2" tweeter
• Subwoofer type: Passive
• Subwoofer driver: 10" woofer
• Number of Loudspeakers: 6
Audio Playback
• Loader Type: 3 CD Carousel
• Number of Discs: 3
• Playback Media: CD, CD-R, CD-RW, MP3-CD,
WMA-CD, SD Card, USB flash drive
• Disc Playback Modes: 40-Track Programmable,
Repeat/one/disk/program, Shuffle Play
• USB Direct / SD Modes: Fast Backward/Fast
Forward, Play/Pause, Previous/Next, Repeat,
Shuffle
Audio Recording
• Recording Media: USB device, SD/MMC card
• USB recording sources: CD, Tuner, Aux,
Microphone in, SD Card
• SD card recording sources: Aux, CD, Microphone
in, Tuner, USB device
• USB / SD card recording modes: Delete, Instant
record, Progammed tracks, Schedule radio
program, Single disc, Single track
Tuner/Reception/Transmission
• Auto digital tuning
• Station presets: 40
• Tuner Bands: FM, MW
• Tuner Enhancements: Auto Store, Easy Set (Plug &
Play)
Connectivity
• Audio Connections: RCA Aux in, 3.5mm stereo
line in -MP3 link
• USB: USB host
• Microphone: Dual Microphone sockets
• Other connections: FM Antenna, MW Antenna
Convenience
• Alarms: CD Alarm, Radio Alarm, USB alarm, Sleep
timer
• Clock: On main display
• Display Type: FTD
• Karaoke: MIC volume, Echo control
Accessories
• Remote control: 36-key with 2xAAA batteries
• User Manual: Spanish, B-Portuguese
• Guarantee booklet: Global version
• Included accessories: FM/MW Antenna, Batteries
for remote control, *Flat pin adaptor
• Quick start guide: Spanish, B-Portuguese
• Cables: MP3 Line in cable
Dimensions
• Set dimensions (W x H x D): 265 x 359 x 353 mm
• Main speaker dimensions (W x H x D):
263 x 447 x 360 mm
• Subwoofer dimensions (W x H x D):
337 x 491 x 360 mm
• Surround Speaker dimensions (W x H x D):
208 x 359 x 301 mm
• Weight incl. Packaging: 51.57 kg
• Packaging dimensions (W x H x D):
1085 x 562 x 786 mm
Power
• Power supply: 100-240VAC, 50/60Hz
•
TECHNICAL SPECIFICATION
1 - 2
Type /Versions:
Features
Board in used:
FWM998
Service policy
MAIN BOARD
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
/55 /00 89/39/KB/
Feature diffrence
RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK
Type /Versions:
FWM998
/55 /00 /77 89/39/KB/
VERSION VARIATION
AMP BOARD
49/
C/M
C/M
C/M
C/M
C/M
C
C/M
C/M
C/M
C/M
C/M
C/M
49/
DISPLAY BOARD
CD BOARD
MCU BOARD
USB BOARD
SD BOARD C/M C/M

1-3
LF Generator
e.g. PM5110
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion met
e
e.g. Sound Technology ST170
L
R
DUT
or Universal Test Cassette Fe SBC420 4822 397 30071
LEVEL METER
e.g. Sennheiser UPM550
with FF
-
filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
CD
Use Audio Signal Disc
(replaces test disc 3)
SBC429 4822 397 30184
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
S/N and distortion meter
e.g. Sound Technology ST1700B
Frame aerial
e.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=50:
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
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=50:
Tuner FM
MEASUREMENT SETUP

1-4
SERVICE AIDS
GB WARNING
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.
ESD
CLASS 1
LASER PRODUCT
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 !.
Lead free

Set remains closed!
N
Y
Play a CD
for at least 10 minutes
Y
playability
ok ?
N
playability
ok ?
add Info for customer
"SET OK"
check playability
N
Y
playability
ok ?
check playability
check playability
return set
Customer complaint
"CD related problem"
"fast" lens cleaning
1
2
3For flap loaders (= access to CD drive possible)
cleaning method 4is recommended
INSTRUCTIONS ON CD PLAYABILITY
2 - 1
Exchange CDM
1-4For description - see following pages

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
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.
4
LIQUID LENS CLEANING
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.
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.
INSTRUCTIONS ON CD PLAYABILITY
2 - 2

BLOCK DIAGRAM
3-1 3-1
CD SERVO
BU9543
MLC3895
144pin QFP
INPUT
RC5/RC6 CODE
VFD
PT6315&
KEY PART
INPUT
SENSOR
16M SDRAM
8M SERIAL
FALSH
SST29VF080B
PICK UP
MOTOR
ADC
WM8782
3CDC
DRIVER IC
TDA7073A
MUX
74LVC157
AUX
TUENR
PACK
MICRO
PHONE
USB/SD
MOTOR DRIVER
BA5826
IIC
MUL-L/R
IIC
PCM
BCK,LRCK
,DATE
PCM
CD L/R
TUNER L/R
CONTROL DATA
CD PCM
BCK,LRCK,
DATE
FUNCTION IC
TDA7468D
3CD LOADER
RL
RR
TDA8954
MAIN L/R
TDA8954
FR
SUB/L
TDA8954
SUB/R
FL
2*250W
2*150W
2*250W

KEY CONTROL BOARD
SOUND KEY CONTROL BOARD
VOLUME CONTROL BOARD
VFD BOARD
MCU BOARD
CD BOARD
AMP BOARD
MAIN BOARD
CLOSE/OPEN-MOTOR BOARD
MOTOR BOARD
POWER SUPPLY
POWER CONNECT
WIRING DIAGRAM
4-1 4-1

Dismantling of Rear Portion
1)Remove 9 screws A and 14 screws B/C as indicated to loosen the outer plate.
2)Remove 3 screws D as indicated to loosen the Rear portion .
5-15-1
ABC
D
1)Slide out the CDC Tray as shown in the diagram below with the help of a flat head screw driver.
Dismantling of the CDC Module
2)Remove the Cover Tray CDC as indicated.
3)Loosen 2 screws E and 2 screws F to remove the CDC Module as indicated.
Sliding Out The CDC Tray
Remove Cover Tray CDC
F
Rear Portion
E
DISASSEMBLY INSTRUCTIONS

Dismantling of the PCB Board
1)Remove 2 screws A and 3 screws E&F as indicated to loosen the Main Board.
2)Remove 2 screws B as indicated to loosen the Tuner Module.
3)Remove 8 screws C and 4 screws G as indicated to loosen the Amp Board.
4)Remove 4 screws D as indicated to loosen the AC Board.
A
BC
E
F
D
G
H
5)Remove 6 screws H and 3 PCB Spacer I as indicated to loosen the Switch Power Board.
6)Remove 9 screws J as indicated to loosen the Display Board.
7)Remove 12 screws K as indicated to loosen the Volume Board.
J
I
K
5-2 5-2

CIRCUIT DIAGRAM - MAIN BOARD
6-1 6-1

PCB LAYOUT - MAIN BOARD
TOP SIDE
6-2 6-2

PCB LAYOUT - MAIN BOARD
BOTTOM SIDE
6-3 6-3

CIRCUIT DIAGRAM - DISPLAY BOARD
PART1
7-1 7-1

CIRCUIT DIAGRAM - DISPLAY BOARD
PART2
7-2 7-2

PCB LAYOUT - DISPLAY BOARD
TOP SIDE
7-3 7-3

PCB LAYOUT - DISPLAY BOARD
BOTTOM SIDE
7-4 7-4

CIRCUIT DIAGRAM - USB/SD BOARD
8-1 8-1

PCB LAYOUT - USB BOARD
PCB LAYOUT - SD BOARD
8-2 8-2

CIRCUIT DIAGRAM - AMP BOARD
9-1 9-1
RL-CH
RR-CH
L-SUB FRONT-R
TO MAIN PB
TO SMPS PB
250W
150W
150W
250W
+
-
+
-
RR+
RR-
RL+
RL-
+
-
+
-
+
-
+
-
SUB+
SUB-
SUB+
SUB-
30HZand 120HZ -3DB
R-SUB
250W
FRONT-R
250W
Noise
Noise
Noise
Noise
Frequency Response
Noise
L13 100MHZ 80R
+
C26
470UF/50V
R7
30K
R8
30K
+
C58
3300UF/50V
+
C59
3300UF/50V
C64
100N
C65
100N
R85
10R
R86
10R
L8 100MHZ 80R
R90
10R
+
C197
470UF/50V
R91
10R
+
C198
470UF/50V
+
C199
470UF/50V
L5 100MHZ 80R
R99
10R
+
C232
470UF/50V
R108
10R
+
C233
470UF/50V
+
C50
0.47UF/16V
R15
8K2
C51
100N C52
100N
C53
100P
R16
18K
+
C54
10UF/50V
R17
10K
R18
NC
C57
224
R23
12K
C62
224
R24
6K8 C63
153
R25
56K
C66
100N
R26
1K
+
-
2
3
1
4U4-A
D4558 +
-
6
5
7
8
U4-B
R35
NC
C67
224
R34
47K
R36
10K
+
C69
0.47UF/16V
R37
8K2
C70
100N C71
100N
C72
100P
R38
18K
+
C73
10UF/50V
R39
10K
R40
NC
C78
224
R44
12K
C79
224
R45
6K8 C80
153
R48
56K
C81
100N
R49
1K
+
-
2
3
1
4U5-A
D4558
+
-
6
5
7
8
U5-B
R50
NC
C82
224
R51
47K
R52
10K
L15 100MHZ 80R
L16 100MHZ 80R
L18 100MHZ 80R
C1
330PF
1VSSA
2SGND
3VDDA
4IN2-
5IN2+
6
MODE
7
OSC
8IN1+
9IN1-
10
DIAG1
11 OSCREF
12
DIAG2
13 PROT
14
VDDP1
15
BOOT1
16
OUT1
17
VSSP1
18 STAB1 19 NC 20 VSSP2
21
OUT2
22
BOOT2
23 VDDP2
24 VSSD
U1
TDA8954CTH
C3
330PF
C6
100N
C7
100N
C8
100N
C9
15N
C10
15N
R1
10R
R2
10R
C11 220P
C12
220P
C14
100N
R3
22RC16
100N R4
22R
L2
15UH
L3
15UH
SPK5
4 OHM
C17
100N
C18
100N
C19 100N
C20
474
C21 47PF
C22 220N
C23
220N
C24
470N
C25
470N
R5
5.6K
R6
5.6K
R46
5.6K
R47
5.6K
C74
470N
C75
470N
C97
220P
C98
220P
+
C99
47UF/100V
C181100N C182
100N
+
C184
47UF/100V
C185
220P
C186
220P
SPK8
3 OHM
1VSSA
2SGND
3VDDA
4IN2-
5IN2+
6
MODE
7
OSC
8IN1+
9IN1-
10
DIAG1
11 OSCREF
12
DIAG2
13 PROT
14
VDDP1
15
BOOT1
16
OUT1
17
VSSP1
18 STAB1 19 NC 20 VSSP2
21
OUT2
22
BOOT2
23 VDDP2
24 VSSD
U3
TDA8954TH
C187330PF
C190
100N
C193
100N
C196
100N
C200
15N
C201
15N
R62
10R
R63
10R
C203
220P
C204
220P
C206
100N
R64 22R
C208100N R65
22R
L10
15UH
L11
15UH
C209
100N
C210
100N
C211
100N
C212 474
C213 47P
C214
220N
C215
220N
C217
470N
R67
5.6K
C27100N C28
100N
+
C30
47UF/100V
C31
220P
C32
220P
SPK7
6 OHM
1VSSA
2SGND
3VDDA
4IN2-
5IN2+
6
MODE
7
OSC
8IN1+
9IN1-
10
DIAG1
11 OSCREF
12
DIAG2
13 PROT
14
VDDP1
15
BOOT1
16
OUT1
17
VSSP1
18 STAB1 19 NC 20 VSSP2
21
OUT2
22
BOOT2
23 VDDP2
24 VSSD
U2
TDA8954TH
C1010
330P
C36
100N
C37
100N
C38
100N
C39
15N
C40
15N
R10
10R
R11
10R
C41
220P
C42
220P
C44
100N
R1222R
C46
100N
R1322R
L6
15UH
L7
15UH
C47
100N
C48
100N
C49
100N
C87
474
C88 47PF
C91
220N
C95
220N
C96
470N
R14
5.6K
1
1A
21Y~ 32A
4
2Y~
53A 6
3Y~
7GND
8
4Y~
9
4A
10
5Y~
11
5A
12
6Y~
13
6A
14
VCC
U7 74CTO4
Y1
600KHZ
C83
1N
R73 47K
C84
1N
R74
47K Q7
BC857
R75
47K
R76
10K
R77
1K
C85
1N
R78
6.8K
R79
1M
R80
OPEN
R81
47K
R82
10K
C86
33PF
Y2
700KHZ
C92
100P
R83 10K
R84
1K
+
C93
22UF/50V
C226
100N
C228
100P
R87
0R
C229
10p
C231
102
R27
1.5k
+
C60
1UF/50V
R28
47K
R29
1K
R30
39K
R31 1K
R32 4K7
R33
47K
R53
1K
+
C104
22UF/50V
R54 1K
R57 1K
+
C176
10UF/50V
+
C179
10UF/50V
+
C18010UF/50V
Z1
5V6 SMD
R94
24K
C238
153
C241
100N
C242
10P
R95
1K5
R181
6K8
C250
100P
R188
22K
R207
220
C237
683
R98
82K
R208
4K7
R209
1K5
R211
NC
R55
24K
C89
153
C90
100N
C236
10P
R56
1K5
R93
6K8
C247
100P
R96
22K
R169
220
C248
683
R170
82K
R171
4K7
R183
1K5
R212
NC
C249
100N
D14
1N4002 D15
1N4002
LT5
6TS:6TS
SPK6
4 OHM
C224
100N
D16
1N4002 D17
1N4002
LT6
6TS:6TS
LT8
6TS:6TS
D18
1N4002 D19
1N4002
LT2
6TS:6TS
D20
1N4002
D211N4002
C55
474N
R41 5K6
C56
474N
R42
5K6
12345678
J33
SPK8P(Pink/Green)
R238
220
R239
220
D41N4002
D5
1N4002
R241
220
R242
220
R243
220
R244
220
C4
330PF
C5
330PF
C243
680N
C13
680N
C15
680N
C43
680N
C45
680N
C205
680N
3
2
1
Q8
BC847
3
2
1
Q5
BC847
3
2
1
Q6
BC847
D1
1N4002
D2
1N4002
+
C34
100UF/25V
C35
100N
C207
100N
+
C246
100UF/25V
+
-
2
3
1
4U8-A
D4558
+
-
6
5
7
8
U8-B
R9
8K2
R1005
6K8
R20
0E
R21
0E
R22
0E
+
C61
10UF/25V
R271 68k
R272 68k
3
2
1
Q20
BC847
3
2
1
Q21
BC847
+
C281
100UF/25V
R27368k
R274120k
R275
68k
R276
120k
R277
68k
R278
120k
R205
220
Z2
5V6
C235 100N
C282
1N
L341
FB1K8
L342
FB1K8
C2330PF
R1010
6K8
R19
8K2
SPK1
3 OHM
LT1
6TS:6TS
SPK2
6 OHM
LT7
6TS:6TS
C1005
330P
C1003
470N
C1004
470N
R1003
5.6K
R1004
5.6K
C1002
100P
R1001
220
R1002
220
C1008
470N
C1009
470N
R1008
5.6K
R1009
5.6K
C1007
100P
R1006
220
R1007
220
C1001
100P
C1006
100P
1
2
3
4
5
6
CON1
6PINS 3.96x180C
987654321 10
CON2 10Px2.0x180C
R43 1K
C154
330
C155
330
VDDP1
VSSP1
VSSA1
VDDA1
VSSP2
VSSA2
VDDA2
VDDP2
VDDA3
VSSP3
VDDP3
+40V
-40V
-12V
+12V
LIN
-12V
+12V
VSSP1
VDDP1
VDDP1
VSSP1
VSSA1
VDDA1
VSSA1
VDDP1
VSSP1
VDDP1
VSSP1
OSC
VSSP3
VDDP3
VSSP3
VDDP3
VSSP3
VDDP3
VDDP3
VSSP3
VSSA3
VDDA3
VSSA3
MODE1
MODE3
VSSP2
VDDP2
VSSP2
VDDP2
VSSP2
VDDP2
VDDP2
VSSP2
VSSA2
VDDA2 VSSA2
MODE2
DIG-CLK
AMP-ON
MODE1
MODE2
MODE3
VSSA3
-12V +12V
RIN
LIN
RIN
+40V
-40V
+40V
-40V
-40V +40V
-40V
+40V
-40V
+40V
SPK11
SPK12
SPK13
SPK14
SPK15
SPK16
SPK10
SPK10
SPK12
SPK11
SPK13
SPK14
SPK16
SPK15
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
+40V
-40V
GND
GND
GND
SPK9
SPK9
-40V
+40V
DCOFFSET
VSS VDD
DCOFFSET
DCOFFSET
DCOFFSET DCOFFSET
DCOFFSET-CTL
DCOFFSET DCOFFSET
+12V
GND
VSSA3
OSC
+40V
SPK10
SPK9
SPK12
SPK11
OSC
VSSA1
VSSA2
LIN
RIN
LIN
AGND
RIN
+12V
DIC-CLK
AMP-ON
-12V
DCOFFSET-CTL
SUB-ON/OFF-CTL
SUB-ON/OFF-CTL
OSC