JVC KD-G140J Service Manual page 38

Block diagram
(For KD-G341,KD-G342,KD-G343,KD-G347S and KD-G347B)
CD MECHA CD servo control section
VF1
SW1
Q101,Q201
VF2
SW2
Q301,Q302
VT1
VT2
PHOTO SW
MD
LD
SP+/-
SPINDLE
MOTOR
FEED+/-
FEED
MOTOR
LOAD+/-
LOAD
SP+/-
MOTOR
FEED+/-
LOAD+/-
FOCUS+/-
SW1 REST (PSW)
TRK+/-
REST SW
PSW
SW1
SW2
CD PICK UP
SRAMVDD
VF1, VF2
VT1, VT2
MD, LD
PICK UP
TRK+/-
FOCUS &
FOCUS+/-
TRACKING
COIL
LCD & Key control section
COM1 to 3
LCD1 S1 to 52 IC661
LCD MODULE LCD DRIVER
JS686
ENCODER
S601 to S619
KEY MATRIX
D630
POWER LED
D631 to D654
LIGHTING DISPLAY
AUX.L/R
AUX
INPUT
Main amplifier & System control section
CD.L/R
NRST
IRQ
STAT
MLD
IC521
MDATA
Q521
MCLK
RF AMP
NPWDOWN
X521
16.9344MHz
FOP
TRP
TRVP
SPOUT FWD
REV
RFENV
TRAV
IC501 BTL_MUTE
BTL DRIVER
IC981
VDD5V
1.5V REG.
LCDDA
LCDCE
LCDCK
ENC1 (VOL1)
LCDDA
ENC2 (VOL2 )
LCDCE
LCDCK
VOL1
VOL2
KEY0 to 2
KEY0 to 2
ACC5V
ILM.10V
X701
8MHz
X702
32.768kHz
MUTE
IC702,S701
RST
VOL_SDA
RESET
VOL_CLK
Q976,Q977 PS2
IC701
PS2
E2PROM_DI
CPU
E2PROM_DO
E2PROM_CLK
IC771
EPROM
Q882,Q883
DIMOUT
DIMMER
CONTROL
PCN
TELMUTE
TEL MUTE
2-2
TUSDA
IC1
TUSCL
FM/AM TUNER
MPXOUT TU.L/R
X1
RDSDA
IC71
4MHz
RDSCL
RDS
DETECTOR
Used for KD-G341,KD-G342,KD-G343
X71
4.332MHz
Q341
LINE OUT
MUTING
Q781,Q782
MUTE CONTROL
CD.L/R
MUTE
LEFT.REAR
RIGHT.REAR
IC161
LEFT.FRONT
E.VOLUME
IC301
RIGHT.FRONT
POWER AMP.
IN2L/R
POWER
3.3V,SW5V,ACC5V
VDD5V,CD8V,9V,ILM.10V
EACH BLOCK
ACC_IN
EXT
ILM.ADJ
IC901
REGULATOR
Q891 TELMUTE
AUX.L/R IC101
AUX IN AMP
J1
ANT
REAR L/R REAR
LINE OUT
FL+/-
FR+/-
RL+/-
RR+/-
SPK
BATTERY
MEMORY