Block Diagram - JVC KW-XC939 Service Manual

Block diagram

CD mecha control board
VA,VB,VE,VF
MD,LD
FOCUS+
FOCUS-
TRACKING+
TRACKING-
SPINDLE+
SPINDLE-
LOAD/FEED+
LOAD/FEED-
REST,SW1,SW2
CD
A,B,E,F,MD,LD
PICK UP
&
IC621
MECHANISM
D.SERVO & DSP
FOCUS+
FOCUS-
TRACKING+
TRACKING-
SPINDLE+
SPINDLE-
LOAD/FEED+
LOAD/FEED-
CD DRIVER
REST
SW1,SW2
FWD-L
FWD-R
Mecha control board
REW-L
REW-R
COMMON-L
IC401
COMMON-R
HEAD
HEAD
AMP
TAPEIN
MOTOR
SUBMO+
SUBMO-
STANDBY STANDBY,MODE,REEL
MODE
SUB MOTOR
REEL
MAIN MOTOR
PHOTO IC402
&
MOTOR
SWITCH
DRIVER
LRCK
BCK
IC601
IC571
SDO
CD RF
24 Bit
VOUTL
VOUTR
DAC
FE,TE
RF,RFDC
IC653
RFGC,RFRP
DACML
TEB,SEL
SRAM
DACMC
DACMD
IO0 to DA7
DACCS
AD0 to AD16
DSPRST
WE,OE,CE
DATA
LRCK
DATA
BCK
LRCK IC652
SDO
BCK
MP3
DEC
3.3V
BUS0
MP3RST
BUS1
MP3DA
BUS2
MP3CK
BUS3
2.5V
BUCK
CCE
BUSSI
DSPRST
BUSSO
VREF
BUSSCK
FMO IC603
/BUSIO
TRO
J-BUS
BUSIO
FOO
BUFF
DMO
IC501
IC681
CDON,LOAD,LD/FE CD
EPROMDI
MICON
EPROMDO
IC602
EPROMCK
EPROM
TAPE-LCH,TAPE-RCH
HEADSEL
FF/REW
SCK
SI/SO
A.MUTE
PREQ
IC431
SI/SO,SCK
TAPE
RESET,P.DET
MICON
BUS SCK
SUBMO+
BUS SO
SUBMO-
IC461
BUS SI
J-BUS
BUFF
Main board
J1
ANT TU1
FM/AM
TUNER PACK
IC572
CD LPF
CD.LCH
CD.RCH
IC21
S.METER
PLL
SD/ST
IC504 BUSCLK
BUSSI/SO
REG
B.DET
P.DET
CDMUTE IC701
CDREQ
IC651
MAIN
CDRESET
REG
SYSTEM
CONTROL
IC791
CPU
RESET
BUSSI/SO
BUSCLK
SI,SO
B.DET,P.DET
I/O
CDMUTE
BUS_SCK
CDREQ
CDRESET
IC761
J-BUS
BUFF
SCK
SI/SO
CN971
To
CD CHANGER
SCK
SI/SO
CH-LCH
TAPE-DET
CH-RCH
TAPE-MUTE
TAPE-REQ
TAPE-RESET
Changer
control board
FRONT-L
FRONT-R
TU-Lch
TU-Rch
REAR-L
REAR-R
SEEK
FRONT-L
FM/AM
MONO FRONT-R
FM/AM OSC
REAR-L
CD-LCH REAR-R
IC951
CD-RCH
E.VOL
PLLCE
PLLDA
PLLCL
PLLDI
E.VOL SLK
E.VOL SO
IC911
REGULATOR
TAPE-LCH
TAPE-RCH
CH-LCH
CH-RCH
EACH BLOCK
AUX-LCH
AUX-RCH
PJ501
LCD board
AUX IN
AUX-LCH,AUX-RCH
LCD1
LCD MODULE
AUXL
AUXR SEG1 to SEG75
COM1 to COM8
IC501
LCD DRIVER
LCD RST
CE,CL,DI
LRST
KEY0
LCD-SCK
KEY2 KEY1
LCD-DATA
KEY3
LCD-CE
S521
KEY0 to KEY3 S501 to S505
RESET
DISP SW
S511 to S513
REMOTE
S531 to S535
KEY MATRIX
CN951
FRONT
LINE OUT
REAR
LINE OUT
IC901
POWER
AMP
FRONT L+/-
FRONT R+/-
REAR L+/-
REAR R+/-
CN911
SPK
BATTERY
Switch board
KEY2
S522 to S528
KEY3
S536,S537
KEY MATRIX
IC502
REMOTE
REMOCON
RECEIVER
S520
RESET
RESET SW
2-1