Block Diagram - JVC KW-XC55 Service Manual

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3 7 6 3 1 5 1 5 0

Block diagram

Main board
J1
ANT
VA,VB,VC,VD,VE,VF,LD,MD,VREF
TRACKING+,TRACKING-
PICKUP
FOCUS+,FOCUS-
SPINDLE+,SPINDLE-
FEED+,FEED-
CD
MECHA
Switch board
RESET
SWITCH
LCD board
REMOTE
IC502
RESET
REMOCON
T E
L 1 3 9 4 2 2 9 6 5 1 3
KEY
KEY2
SWITCH
KEY3
ILL
FRONT
LED
LCD1
AUX IN
Mecha control board
MAIN
SUBMO+
MOTOR SUBMO-
SUB
TAPEIN,MODE
MOTOR
REEL,PHOTO
MOTOR,STANDBY
HEAD
w w w
.
IC661
IC601
CD
RF AMP
DRIVER
RFDC,RFGC
RFRP,RF,FE
TE,SEL,TEB
CDON
FOO,TRO
LM0
DMO,FMO
LM1
BACK
KEY
LIGHT
SWITCH
LED
KEY1
KEY3
ILL
LCD RST
LCD CE
LCD SCK
LCD DATA
COM1 to 8
IC501
SEG1 to 75
AUXL
LCD DRIVER
AUXR
BUS SI
BUS SO
IC402
BUS SCK SCK
IC461
BUS INT SI/SO
MOTOR
BUFFER
DRIVER
PREQ,SI/SO
SUBMO+
RESET,P.DET
SUBMO-
IC431
A.MUTE
CPU
FF/REW
DIRECTION
IC401
DOLBY,MS
HEAD AMP
TAPE-Lch
TAPE-Rch
x a o
y
i
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8
TU1
FM/AM TUNER
SD/ST,S.METER
PLLCE,PLLDA
SEEK,MONO PLLCL,PLLDI
FM/AM,IFC,FM/AM OSC IC21
ANT
PLL
CDRW,IOP
L-CH
IC961
R-CH
CD L.P.F.
BUS0 to BUS3
BUCK,CCE
IC621
LSI_RESET
DSP
DAC
IC791
RESET,REMOTE
KEY0 to 3,LCD-CE
RESET
LCD-RESET,LCD-SCK
Q Q
3 7 6 RESET 3
LCD-DATA,ILL
AUX-Lch,AUX-Rch
Changer control board
SCK,SI/SO
RESET,PREQ
CN971
P.DET
CD-CH
A.MUTE
CH-L
TAPE-Lch
CH-R
TAPE-Rch
u 1 6 3
.
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2 4
9 9 8
FRONT-L,FRONT-R
REAR-L,REAR-R
Tuner-Lch
Tuner-Rch
CD-Lch
CD-Rch IC951
E.VOLUME
VOLSCK
IC701
FRONT L+
VOL SO
FRONT L-
CPU
FRONT R+
FRONT R-
REAR L+
REAR L-
REAR R+
REAR R-
1 5 1 5 0 8 9 2 4
ILL,ANT
CH-Lch
BUS_SI
CH-Rch
BUS_SO
TAPE-Lch
BUS_I/O
TAPE-Rch
BUS_SCK
Each block
IC761
JVC BAS
IC911
REG
SI/SO MUTE-OUT
SCK TAPE-DET
RST-OUT
MEMORY
TAPE-PREQ
ILL,ANT
POWER ON
m
c o
2
9 9
LINE
OUT
IC901
POWER IC
9 8 2 9 9
CN911
SPEAKER
BATTERY
2-1