Block Diagram - JVC KD-G120 Service Manual

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Block diagram

VF1, VF2, VT1
VT2, LD, MD
PICK UP
TRACKING+
TRACKING-
FOCUS+
FOCUS &
FOCUS-
TRACKING
COIL
FEED+
LOAD&FEED
FEED-
MOTOR
POSITION SET
PSW
SWITCH
SPINDLE+
TE
L 13942296513
SPINDLE
SPINDLE-
MOTOR
SW1, SW2
SW1, SW2
LCD & Key control section
Only for IC681
KD-G120R REMOCON
IC661
LCD DRIVER
LCD.SCK
LCD.SO
LCD.CE
COM1
COM2
COM3
S1 to S52
LCD1
LCD DISPLAY
www
2-1
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(For KD-G120,KD-G120R,KD-G123,KD-G124,KD-G125 and KD-G126)
CN001
S601 to S616
KEY MATRIX
REMOCON KEY0
KEY1
KEY2
ENC1
ENC2
JS686
ENCODER
D630 to D649
D652,D653
LIGHTING
DISPLAY
x ao
y
. i
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8
Main amplifier & CD servo control section
LM,MSM
TRV,TVD
TRD,FOD
ECM,ECS
IC541
KICK
BTL
DRIVER
SPINDLE+
SPINDLE-
FEED+
FEED-
TRACKING+
TRACKING-
FOCUS+
FOCUS-
SW1, SW2, PSW
VF1
VF2
Q Q
LDON,ARF
3 6 7 1 3
VT1
BDO,OFTR
VT2
RFDET
MD
VDET
LD
FBAL,TBAL
TE,FE
IC501
RFENV
RF AMP
KEY0
KEY1
KEY2
LCD.SCK
LCD.SO
LCD.CE
REMOCON
ENC1
ENC2
u163
.
2 9 9 4 2 8
CD.RESET,STATUS
SUBQ,SQCK,TLOCK
FLOCK,CD.SENSE
IC561 MLD,MDATA,MCLK
DSP&DAC
1 5 0 5 8 2 9 9 4
OUTL
OUTR IC151
CD L.P.F.
m
co
9 9
2 8 9 9