Philips FWM462 User manual

Version 1.0
FWM462
3141 785 35290
280W Mini Hi-Fi System
-/55/77/BK
Published by LX 1023 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
AC board
Circuit diagram .........................................................................7-1
Layout diagram..................................................................7-2..7-3
Display board
Circuit diagram .........................................................................8-1
Layout diagram..................................................................8-2..8-3
AMP & Power Board
Circuit diagram. ........................................................................9-1
Layout diagram..................................................................9-2..9-3
Tuner board
Circuit diagram .......................................................................10-1
Layout diagram.......................................................................10-2
CD Board
Circuit diagram. ...................................................................... 11-1
Layout diagram.............................................................. 11-2..11-3
MCU Board
Circuit diagram. .............................................................12-1..12-2
Layout diagram..............................................................12-3..12-4
Exploded view diagram ...............................................................13-1

Sound
• Total Sound Power (RMS): 280 W
• Output Power: 3600W PMPO
• Sound Enhancement: MAX Sound, Dynamic Bass
Boost 3 steps, Digital Sound Control 4 modes,
Incredible Surround, Virtual Ambience Control
• Output power (RMS): 4 x 70W / ch
Loudspeakers
• Main Speaker: 2 way, 2" tweeter, Bass Reflex
Speaker System, 6.5" woofer
• Number of Loudspeakers: 2
Audio Playback
• Loader Type: 3 CD Carousel
• Number of Discs: 3
• Playback Media: CD, CD-R, CD-RW, MP3-CD,
WMA-CD
• USB Direct Modes: Delete, Fast Backward/Fast
Forward, Play/Pause, Previous/Next, Repeat,
Shuffle, Stop
• Disc Playback Modes: Repeat/one/disk/program,
Shuffle Play, 40-Track Programmable
Audio Recording
• Recording Media: USB device
• USB recording modes: Instant record,
Programmed tracks, Schedule radio program,
Single disc, Single track
• USB recording sources: Aux, CD, Tuner,
Microphone in
Tuner/Reception/Transmission
• Auto digital tuning
• Station presets: 40
• Tuner Bands: MW, FM Stereo
• Tuner Enhancements: Auto Store, Easy Set (Plug &
Play)
Connectivity
• Microphone: Dual Microphone sockets
• Other connections: FM Antenna, MW Antenna,
AM Antenna
• USB: USB host
• Audio Connections: RCA Aux in, 3.5mm stereo
line in -MP3 link
Convenience
• Alarms: CD Alarm, USB alarm, Radio Alarm, Sleep
timer
• Clock: On main display
• Display Type: LCD
• Karaoke: MIC volume, Echo control
Accessories
• Included accessories: FM/MW Antenna, *Flat pin
adaptor, Batteries for remote control, AC Power
Cord
• Remote control: 36-key with 2xAAA batteries
• Guarantee booklet: Global version
• User Manual: Spanish, B-Portuguese
• Quick start guide: Spanish, B-Portugues
• Cables: MP3 Line in Cable
Dimensions
• Set dimensions (W x H x D): 265 x 310 x 390 mm
• Packaging dimensions (W x H x D):
900 x 440 x 326 mm
• Weight incl. Packaging: 15.92 kg
• Speaker Depth: 273 mm
• Speaker Height: 358 mm
• Speaker Width: 230 mm
Power
• Power supply: 100-240VAC, 50/60Hz
•
TECHNICAL SPECIFICATION
1 - 2
Type /Versions:
Features
Board in used:
FWM462
Service policy
AC BOARD
MAIN BOARD
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
/55 /00 /77 89/39/KB/
Feature diffrence
RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK
Type /Versions:
FWM462
/55 /00 /77 89/39/KB/
VERSION VARIATION
C/M
C/M
TUNER BOARD
AMP & POWER BOARD
49/
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
C/M
49/
DISPLAY BOARD
CD BOARD
MCU BOARD

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
BX8800
128pin QFP
INPUT
RC5/RC6 CODE
LCD
ET8862&
KEY PART
MAIN L/R
INPUT
RC
SENSOR
16M SDRAM
8M SERIAL
FALSH
SST29VF080B
PICK UP
MOTOR
MOTOR
ADC
WM8782
3CDC
DRIVER IC
FAN8100N
MUX
74LVC157
AUX
TUNER
SI4730
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
AMP
STK-433-
870
FUNCTION IC
TDA7468D
3CD LOADER
FL
FR

WIRING DIAGRAM
4-1 4-1
DISPLAY BOARD
KEY1 BOARD
MAIN BOARD
AC BOARD AMP BOARD
MCU BOARD
CD BOARD

DISMANTLING INSTRUCTIONS
1) Loosen 4 screws to remove the Cover Top of the set.
2) Loosen 2 screws to remove the Panel Left and 2 screws to
remove the Panel Right of the set.
3) 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 and Front Panel
Remove CDC Module
4) Remove the Cover Tray CDC as indicated.
Sliding Out The CDC Tray
Front View CDC
Remove Cover Tray CDC
5) Loosen 2 screws A and 2 screws B to remove the CDC
Module as indicated.
6) Remove 2 screws at the bottom to separate the
Front Panel Assembly from the Plate Bottom.

Dismantling of Rear Portion
Dismantling of the PCB Board
1)Remove 2 screws C as indicated to loosen the Tuner Board.
3)Remove 6 screws E&I as indicated to loosen the Power Board.
4)Remove 3 screws F as indicated to loosen the Bottom Cabinet.
5)Remove 2 screws G as indicated to loosen the Front Cabinet.
2)Remove 4 screws D&H as indicated to loosen the Main Board.
3)Remove 2 screws M as indicated to loosen the USB Board.
2)Remove 27 screws K&L as indicated to loosen the KEY1&2 Board.
1)Remove 4 screws J as indicated to loosen the AMP Board.
C
F
D
EG
H
I
J
K
LM

CIRCUIT DIAGRAM - MAIN BOARD
6-1 6-1
TO LCD BOARD TO TUNER MODE
TO MCU BOARD
TO CD PCB
AGND
TO MCU BOARD
LINE LI IN
TO POWER SUPPLY BOARD
TO AMP BOARD
JUMPER
1
2
3
4
5
6
7
8
CN611
C681
10U 50V
C686
100N
C685
22U
16V
Z604
9V1
R609 1K
R605 NC
C689 1000U
25V
R639
2K2
R641 2K2
R642 2K2
R6612K2
C611
470N
R623
2K2
R657
27K
R611 10R
C667
0.47U
50V
C671
47U
25V
C672
220U 16V
R672 2K2
R674 27K
R643
1K
C645
10U
C644
10U
C656
100PF
R668 220R
C660
100PF
R670 2K2
C665 4N7 C652 2N2
C662 4N7
C661 2N2
R659 27K
R658
220R
C658
100P
C659
100P
C607 4N7
R603 1K
M
C603 220N
R602 1K
C601 100U
16V
M
C604 330N
R626 1K2
R604
1K2
C642
100U
25V
C643 100N
R613 36K
R612 36K R615
36k
R614
36k
C624 NC
C623 NC
1VDD 2MIC 3IN1-L 4IN2-L 5IN3-L 6IN4-L 7MUX-L 8IS-L 9TREBLE-L
10 BASSI-L 11 BASSO-L 12 OUT-L 13 D-GND 14 SCL 15
SDA
16
ALC
17
OUT-R
18
BASSO-R
19
BASSI-R
20
TREBLE-R
21
IS-R
22
MUX-R
23
IN4-R
24
IN3-R
25
IN2-R
26
IN4-1
27
CREF
28
GND
IC601
TDA7468D(SOP28)
1
IN
2
GND
3
OUT
IC603
KA7808
Q607
8050 R666
10R
C640
470U
16V
C639 100N
R618 30K
R619 30K
R617 2K4
R616 2K4
C620 10N
C674 33U 16V
C651 33U 16V
C668 33P
R692 220K
C669
470P
R648
22K
R679 22K
C647
100U
16V
C646
100N
R678 220K
C653 33P
C654
470P
R693
22K
R690 22K
R691
20K(15k FOR fwm462)
R677
20K(15k FOR FWM462)
C650
220U
16V
C649
100N
C670 2U2
R620
10K
Q601
2S1936T
Q602
2S1936T
R675
10K
R676
10K
C675 2U2
R610
10K
C622
1UF
C615
1UF
C608 1UF
C616 1UF
R649 18K
R650 47K
R652 18K
R651 47K
C617
2U2
C618 2U2
C657 4N7
R6698K2
M
C602 220N
M
C614 330N
R656
5K6
C613
10U
50V
C605 10U
C606
10U
Q608
3904
Q609
B772Y
R631
10K
R632
1K
R633 47K
R636
470R
Z603
12V
Q611
8050
R685
NC
R684
NC
R687
4K7
D606 BAS316
D607 BAS316
C655 100U
25V
R686 1M
R665 4K7
Z602
6V2(6v8 FOR FWM462)
R6065K6
MC697
330N
R667
8K2
MC698
330N
1STR
2SER
3CP
4Q0
5Q1
6Q2
7Q3
8GND 9
QS
10
Q'S
11
Q7
12
Q6
13
Q5
14
Q4
15
OE
16
VDD
IC607
M74HC4094
Q605
B772
R671
1K
R698
10K
R630 220K
213579 46810
1
2
3
4
5
6
7
8
9
10
CN601
Q606
3904
R673
47K
R682
47K
R681
30K
C638
470U16V
1
IN
2
GND
3
OUT
IC606
KA7805
R601 0R33 1W+-1%
C637 100N
D601
1N5819
1
2
3
4
5
6
CN602
123456
1
2
3
4
5
6
CN605
Q613
8550C
Z601
4V7
Q603
3904
Q604
3904
R622
10K
D603
BAS316
D604
BAS316
R635
12K
GND
RIGHT
LEFT
CN610
R638 10R
C625
100U 16V
C628
100N
C630 100U 25V
C612
100N
D602
BAS316
Q614
3904
R624
220K
R625 1K
R628
560R
Z606
3V9
Q615
3904
R629
100K
R634
2K2
C690 100N
1
2
3
4
5
6
7
8
CN607
21357911131517 4681012141618
CN603
1234
CN604
D605
JUMPER
1
A-O
2
A-IN
3
A+IN
4
GND
5B+IN 6B-IN 7B-O 8VCC
IC602
NJM4556AM
12
CN612
R621
0R
JR2
JR3
C609 100P
C621 100P
T1
T2
T3
T4
T5
T6
T10
T12
T13
T14
T15
T16
T17
T18
T19
T20
T21
T22
T23
T24
T25
T26
T27
T28
T29
T30
T31
T32
T33
T34
T35
T36
T37
T38
T40
T41
T43
T44
T45
T46
T47
T48
T49
T50
T51
T52
T53
T54
T55
T68
T69
T70
T71
T72
T73
T74
R972
1K
L601
10uH
Z919
10V
C963 100U
Q906
8050C
C9560 100UF
C692 100N
C6950 100N
C20
1500P
C211500P
R6100 1K
C17
100N
R6102 56R
Z6101
3V3
C6106
100N
C688 3900P
C687 3900P
R699
10K
C6099 1000U
25V
C6097 100N
R647 22K
R644 22K
R64622K
R640 22K
C683
470P
C684 68P
R653 120K
C678
470P
R645 120K
C680 68P
+
C693
33UF
+
C679
33UF
-
+
5
6
7
NJM4556
-
+
3
2
1
4
8
IC609-A
NJM4556
C682
0.47UF
C673
0.47UF
R655 30K
R662 30K
R695 2K4
R696 2K4
C691
2.2UF
C694
2.2UF
C648 100P
C610 100P
GND
RIGHT
LEFT
AUX601
R654
2K2
R664
2K2
J649
22UH
R660 22K
R663 22K
C664 104
+12V
RDS-DATA
RDS-CLK
REF
GND
GND
MUTE
REC-L
TU-CLOCK
TU_DATA
TU_L/CH
TU-STEREO
TU_R/CH
CD-R
CD-L
CD+8V
GND
GND
MUTE
LEFT
RIGHT
3V3
USB+5V
GND
RDS-CLK
RDS-DATA
PWR_DET
ECO_POWER
GND
TU_ENABLE/MPX
TU-CLOCK
TU_DATA
TU-STEREO
NTC
4094-CP1
4094-OE
4094-DATA
POWER/ON
TU_IF
TU-PWR
VOL-SCLK
VOL-SDA
FAN-ON
FAN-ON
AMP/ON
ECO_POWER
POWER
VCC10V
VCC-14V
GND
VCC-OUT
GND
TU-VCC
TU-VCC
GND
3V3
AMP_ON
ECO_POWER
POWER/ON
PWR_DET
DIM
TU/R
TU/L
4094-DATA
4094-OE
4094-CP1
NTC
MIC_IN
GND
CD+8V
AM_HOPPNG1
LEFT
GND
RIGHT
GND
GND
GND
AMP_ALC
TU_ENABLE/MPX
GND
REC-L
AMP_ALC
AMP_ALC
REC-R
REC-R
LIN-R
LIN-L
VCC-14V
AMP_ON
DIM
USB_PWR
MUX-L
MUX-R
+12V
GND
MUX-L
MUX-R
REC-R
REC-L

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

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

CIRCUIT DIAGRAM - AC BOARD
7-1 7-1
-32V
GND
GND
+32V
0V
127V
0V
14V
127V
110V
220V
ONLY FOR ECO FWM452/12
ONLY FOR ECO FWM452/55
D801
1N41481
Q802
8050
Z802
9V1
R822
1K5
C835
220uF
R821
47R 1/2W
M
C802
104
M
C828
104
+
C806
3300UF/50V
+
C821
3300UF/50V
F805
T5A L 250V
AC
230V/50Hz
F806
T2A L 250V
1
2
3
4
CON801
F804
T5A L 250V
T801
F802
T3.15AL 250V
1
2
3
4
5
6
SW801
NTC
D848
1N4001
F807
T200mAL 250V
+C810
47UF
R835
R834 1k R833
10R
1/6W
Q801
8050D
+C808
10V
100U
U801
LM1117-3.3V
D805
1N4001
M
C811
104
+C807
10V
100U
M
C825 0.02U
M
C823 0.02U
M
C824 0.02U
M
C822 0.02U
D824 1N4001
D822 1N4001
D823 1N4001
RL801
DC6V
D821 1N4001
T802
EI28
M
C827 0.02U
M
C804 0.02U
M
C826 0.02U
M
C803 0.02U
D818 1N5402
D816 1N5402
D817 1N5402
D815 1N5402
M
C833 0.02U
M
C834 0.02U
M
C832 0.02U
M
C831 0.02U
D833 1N5392
D834 1N5392
D832 1N5392
D831 1N5392
1
2
3
4
5
6
CON802
M
C843
104
+
C8014700UF/25V
R836
10K
R80110K
D835
1N5392
M
C809
104
R810110k
NTC
3V3
+14V
NTC
ECO

PCB LAYOUT - AC BOARD
7-2 7-2

CIRCUIT DIAGRAM - DISPLAY BOARD
8-1 8-1
HEADPHONE
USB SOCKET
USB BOARD
TO MCU
TO MAIN
STAND-BY
TO MAIN
TO MCU
ECO
VR901
VR902
MODE MAX SOUND
D914
BLUE
R951
10K
R900
47R
C954
47U/16V
1
2
3
VR903
C968
100P C967
100P
L911 10uH(1.15Ω)
L912 10uH(1.15Ω)
L914 10uH(1.15Ω)
L917 10uH(1.15Ω)
Q903
MMBT8050
D917
3V9
R962 1K2
C956
47U/16V
C955 100N
R963
2R2
L902
10uH
C949
100N
L910
10uH(1.15Ω)
54321
1
2
3
4
5
CN904
L915 10uH(1.15Ω)
L913 10uH(1.15Ω)
L916 10uH(1.15Ω)
L918 10uH(1.15Ω)
L919 10uH(1.15Ω)
1IP
2V-
3V+
IR901
FM-6038TM2-5A
1
2
3
4
5
6
7
CN910
HP JACK(3.5mm TC38-103-01)
V-
V+
D-
D+
1
2
3
4
5
6
CN905
KEY3
MIC-DET
VOL-
VOL+
1
2
3
4
5
6
7
CN908
HP JACK(3.5mm TC38-103-01)
1
2
3
4
5
6
7
CN909
HP JACK(3.5mm TC38-103-01)
R9001
47K
R9003
2K2
R9005
56K
R9009
330K
R9011
2K7
R9007
2K7
R9015 47R
Q972
BC847B
Q971
BC857B
R9013
47R
C9005
1N
C9003 2U2
C9001
100P
L9005
FB1k
C9007
10P
C9009 470N
Q975
BC847B
Q974
BC847B
C9011
1UF
R9019
1M
R9021
1K
D901
1N4148
R9017 1K
R9002
47K
R9004
2K2
R9006
56K
R9036
330K
R9010
2K7
R9008
2K7
R9014
47R
Q982
BC847B Q981
BC857B
R9012
47R
C9006
1N
C9004
2U2
C9002
100p
L9006
FB1k
C9008
10P
C9010
470N
Q984
BC847B
Q983
BC847B
C9012
1UF
R9020
1M
R9022
1K
D902
1N4148
R9018
1K
R9023 10K
R9024 10K
C9013
0.47/50V
R9025
10K
R9026 1K
L9002
FB1k
L9001
FB1k
L9004
FB1k
L9003
FB1k
Q970
BC847B
R9038
NC
R9042
1K
R9040
1K
R9037
NC
J18
0R
C9014
100P
KEY0
KEY1
GND1
LCD-DATD
LCD-WR
LCD-CS
DATA-OUT
REMOCON
GND2
VDD3V3
NC
USB-VCC
D+
D-
USB-G
USB-G2
C961
220U/10V
R901 1K
R917 1K
R918 1K
R919 1K
R920 1K
R921 1K
R932 1K
R931 1K
R930 1K
R929 1K
R928 1K
R927 1K
R926 1K
R925 1K
R924 1K
R923 1K
R922 1K
R912 1K
R911 220R
R910 220R
R909 1R
R908 1K
R907 91R
R906 56K
R905 1K
R904 220R
R9031K
R902 1K
C902 104
C901 470P
R940 1K
R934 1K
R935 1K
R936 1K
R937 1K
R938 1K
R939 1K
R933 1K
R976
15K
R977
15K
J4 0R
C948
100N
L927
100MHZ/80R
12
CN936
R978
10K R979
10K
141210864 1513119753
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN901
1
2
3
50K x2
4
5
6
50K x2
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
LCD901
C909
47U/16V
24351
CN911
24 351
CN914
Q909
PMBT3904
24
351
CN903
1
2
3
CON904
C904
1000P
C903
1000P
D903 5V1
C906 47U/16V
C907 100N
Q901
PMBT3904
D904
WHITE
R953
100R
C905
47U/16V
R954
330R
R980 10K
R981 330R
C9017
10U/16V
1CS
2RD
3WR
4DATE
5VSS
6OSC1
7VDD
8VLCD
9IRQ
10 BZ
11 BZ1
12 T1
13 T2
14 T3
15 COM0
16 COM1
17 NC 18 NC 19 COM2 20 COM3 21 COM4 22 COM5 23 COM6 24 COM7 25 SEG0 26 SEG1 27 SEG2 28 SEG3 29 SEG4 30 SEG5 31 SEG6 32 NC
33
NC
34
NC
35
NC
36
SEG7
37
SEG8
38
SEG9
39
SEG10
40
SEG11
41
SEG12
42
SEG13
43
SEG14
44
SEG15
45
SEG16
46
SEG17
47
SEG18
48
SEG19
49
NC
50
NC
51
SEG20
52
SEG21
53
SEG22
54
SEG23
55
SEG24
56
SEG25
57
SEG26
58
SEG27
59
SEG28
60
SEG29
61
SEG30
62
SEG31
63
NC
64
NC
IC901
ET8662Q
C9065 4N7
R9103
4K7
R983
100R
Q9101
PMBT3904 C957
1UF
R942
820
R947
0
R915 390
R916 510
SW921
DISPAY
SW903
CLOCK
SW904
DISC
SW906
PROG
R941
560
SW910
USB
SW901
STOP
R964
0
R965
390
SW902
SLEEP/TIME
SW923
MP3 LINE/AUX
SW922
TUNER
SW919
POWER
SW920
DSC1
SW924
DISC CHANGE
SW905
R968 1k5 R961 1K2 R960 1K R946 820
R966
510
R967
560
R959 1k5 R958 1K2 R957 1k R956 820 R913 0R
SW917
JAZZ
SW914
SW912
TECHNO
SW927
OPEN/CLOSE
SW911
POP
SW913
USB RECORD
SW916
OPTIMAL
SW918
USB DELETE
R948 390
R949 510
R955 560
R969 2k2
SW915
DBB
SW926
DSC2
R970 3K6
R974
3K6
SW907
PLAY/PAUSE
SW925
PREVIOUS
R943
1K
R944
1K2
SW909
ALUUM/PRESET+
SW908
NEXT
SW929
ALBUM/PRESET-
R945
1k5
R973
2k2
SW928
DSC3
R971 5K6
D905
2V7
R914
330R
ECO_POWER
3V3 REMOTE-INT
REMOTE-INT
LCD-DATE
SERIAL
KEY1
VCC10V
VOL-O
VOL+O
VOL+IN
VOL-IN
3V3
LCD-CLK
VCC10V
VCC10V
VCC10V
VCC10V
MIC-OUT
AGND
AGND
AGND
AGND
AGND
AGND
AGND
VCC10V
MIC-DET
KEY3
DAT-OUT
GND-D
GND
DGND-I
DGND-I
CPU/VCC
VCC10V
GND-D
3V3
DGND-I
MIC-DET
AGND
VCC10V
DET
LCD-CLK
SERIAL
LCD-DATE
GND
KEY0
LIN-IN-R
LINE-IN-L
KEY0
DIM
DIM
DET
VCC10V
GND
KEY0
DGND-I
KEY0
KEY3
DGND-I
DGND-I
KEY1

LAYOUT DIAGRAM - DISPLAY BOARD
TOP SIDE
8-2 8-2

LAYOUT DIAGRAM - DISPLAY BOARD
BOTTOM SIDE
8-3 8-3

CIRCUIT DIAGRAM - AMP BOARD
9-1 9-1
FAN CIRCUIT
FAN-ON
POWER-0N
NC
VCC
GND
RIGHT-IN
GND
LEFT
LOW-L
LOW-LG
LOW-R
LOW-RG
HI-L
HI-LG
HI-R
HI-RG
LEFT(HIGHT)
RIGHT(HIGHT)
FOR FWM452 STK433-090 FOR FWM462
R715 43K
R713 43K
R785
56K
R743
6K8
R729
0.22R/1W
R732
100R/1W
R728 6K8
C768
3P
R717
56K
R711 56K
L704 11T5
R702
4R7
M
C765 100N
63V
M
C764 100N
63V
R768 10K
R755
4R7
R716
4R7
R705
10K
M
C763
100N
63V
M
C762
100N
63V
R798
4R7
L703 11T5
R797
56K
R788
56K
R766
0.22R/1W
Q712
BC856B
Q710
BC856B
C746
100P
C743 3P
C734
10U
R735
1K8
C725
100P
R724 56K
R722 56K
C701 470N
C702 470N
C745 1N5
C708 1N5
D705
1N4148
R745
56K
R739
0.22R/1W
R723 6K8
R708
0.22R/1W
R747
1K8
C722
10U
R774
1K Q721
2N5551
C718
10U
50V
R770
47K
R740 27K
R721
2K7
R744
24K
R783
56K
R794
22K
R769
1K
Q722
BC556B
R749
56K
C752 3P
R714 56K
R720 56K
C738
22U
50V
L702 11T5
R703 4R7
M
C706 100N
63V
M
C704 100N
63V
R759 10K
R701
4R7
R712
4R7 1W
R704 10K
M
C703100N
63V
M
C705 100N
63V
R707 4R7
L701 11T5
C723
22U
50V
R754
56K
R753
56K
R738
6K8
R748
56K
Q703
BC856B
Q707
BC856B
C754
100U 63V
C755
100U 63V
R772
47R
C728
22U
50V
C729
100N
R758
10K
C741
100N
Q716
2N5551
C749 100P
C751 3P
C732
10U
R761
1K8
C750
100P
C716 120P
R752 56K
R751 56K
C736 470N
C735 470N
R778 3K3
R777 3K3
12
CON705
C786
100U
25V
R793 2R2 1/4W Q704
8050C
C785
47U
50V
ZD703
10V
R737
470R
R799
3K9 Q715
8050C
R718
47K C772
0.47U
50V
C777
1000U
25V
C712 120P
R782 47K
R784
47K
C721
470N
C733
470N
R726
27K
C756
100N
C740
10N
R776
27K
C724
100N
C737
10N
C744
10N
C739
10N
C748
4N7
C747
4N7
R773
47K
R727
47K
R775 1K5
R771 1K5
1A-O 2A-IN 3A+IN 4GND 5
B+IN
6
B-IN
7
B-O
8
VCC
IC703
NJM4556AM
12345678
1
2
3
4
5
6
7
8
CON701
R736
1K8
R741
33K
R734
33K
R731 1K8
R746
24K
R760
24K
R725 56K
R762 56K
C709
100U
25V
R730 2R2 1/4W Q702
8050C
C707
1000U/16V
ZD702
12V
R719
1K
C711 1N5
C710 1N5
1234
1
2
3
4
CON703
1-PRE
2-VCC 3+VCC 4CH1OUT+ 5CH1OUT- 6CH2OUT+ 7CH2OUT- 8+PRE 9SUB
10 GND 11 CH1-IN 12 CH1-NF 13 ST-BY 14 CH2-NF 15 CH2-IN 16 CH3-NF 17 CH3-IN 18 CH4-IN 19 CH-NF 20 CH3OUT- 21 CH3OUT+ 22 CH4OUT- 23 CH4-OUT+
U701 STK433-870(ZIP23)
C714
100U 63V
C715 100U 63V R733
100R/1W
12345678
1
2
3
4
5
6
7
8
CN702
D701
BAS316
D702
BAS316
D703
BAS316
D704
BAS316
C719
10U
50V
R706
1K8
R709
27K R710
27K
R31
0R
C776
100U
25V
-VCC
+VCC
-VCC
+VCC
AGND
AGND
AGND
AGND

PCB LAYOUT - AMP BOARD
TOP SIDE
9-2 9-2