JVC KD-AR270 Service Manual page 30

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+
SPINDLE
SPINDLE-
MOTOR
SW1, SW2
SW1, SW2
LCD & Key control section
IC681
REMOCON
IC661
LCD DRIVER
LCDCLK
LCDDA
LCDCE
COM1
COM2
COM3
S1 to S52
LCD1
LCD DISPLAY
2-1
(For KD-AR270,KD-G220,KD-G227,KD-G323,KD-G324,KD-G325,KD-G3
CN001
S601 to S616
KEY MATRIX
KEY0
KEY1
REMOCON KEY2
ENC1
ENC2
JS686
ENCODER
D630 to D649
D652,D653
LIGHTING
DISPLAY
Main amplifier & CD servo control section
CN502
CN502
IC501
BTL
DRIVER
CN503
CN503
SPINDLE+
SPINDLE-
FEED+
FEED-
TRACKING+
TRACKING-
FOCUS+
FOCUS-
SW1, SW2, PSW
KEY0
KEY1
KEY2
LCDCLK
LCDDA
LCDCE
ENC1
ENC2
REMOCON
TRP
FOP
SPOUT
TRVP
NRST,NPWDOWN
STAT,MLD,IRQ
IC521
MDATA,MCLK
DSP
VF1, VF2
VT1, VT2
MD, LD
VREF
OUTL
OUTR
IC581
CD L.P.F.
LM