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1
4.2 OVERALL BLOCK DIAGRAM
A
C
RADIO PCB
ASSY
B
A
MAIN PCB ASSY
U2
MULTIPLEXER
C
PI5V331W
U8
AUDIO_CODEC
WM8781
IC902
IC 1
SDRAM
OPTEK OTK 5256
1Mx16bit
IC 7
FLASH_IC
D
8M
U3
IC13
HP AMP
MULTIPLEXER
TDA1308
FSUSB30MUX
J3(4P)
J12(5P)
E
SCN802(4P)
USB CONNECTOR
F
HP (JACK801)
F
H
HEADPHONE
USB PCB ASSY
PCB ASSY
10
1
2
SPK Terminal Jack
(JACK701)
CON701(4P)
CON702 (12P)
J6 (4P)
J1 (12P)
Power Supply
U900
8V (Motor Supply)
POWER AMP IC
iPod 5V [U501]
STA 339BW/S
USB 5V [U551]
AMP IC 18V
VDD 3.3V [IC8]
VDD1.8V [U4]
OTHER 3.3V [IC6]
FL (F1, F2, VP- )
U5
Philip
SAA7824HL
Microprocessor
SERVO DSP
Audio DSP
Audio Decoder
DRIVER_IC
SA1469
IC901
iPod
certification
IC800
SA6208
J2 (10P)
J5(2P)
J802 (10P)
DOCK CONNECTOR
B
iPOD PCB
ASSY
(X-HM20 ONLY)
SCN801(6P)
2
3
AUX IN
Video Out
AM Cone
(JACK704)
(JACK702)
(CON703)
(JACK703)
TUNER
Si4730
IC701
CON704(2P)
U7
J14 (16P)
CON 201 (16P)
FL
IR
DRIVER
( IC 201)
POWER ON
LED
FUNCTION
PLAY
X-HM20-K
3
4
G
POWER PCB ASSY
FM Coaxial
PRIMARY
SECTION
RELAY
(RL401)
MAIN TRANS.
D407
D411
D415
KBU802
~D410
~D414
~D418
REG.8V
IC402
CON 401 (11P)
PU in
SLIDE
MOTOR
PICK UP
SPIN
MOTOR
LOADING
MOTOR
LOADER ASSY
Open /Close SW
FL DISPLAY LCD201
D
DISPLAY PCB ASSY
KEY BUTTON
STOP
UP
DOWN
OPEN/CLOSE
E
KEY-SWITCH PCB ASSY
4
AC INLET
SUB.
TRANS
T401
D401
~D404
D419
~D421
REG.5V
IC401
CON 402 (9P)
VOLUME VR
(VOL201)
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