Block Diagram - JVC KD-AR870J Service Manual

Block diagram

CD servo control section
IC501
CLOCK GEN.
IC541
D.SERVO
& DSP
SW1
SW2
SW1, SW2
SPINDLE+
SPINDLE
SPINDLE-
MOTOR
POSITION
PSW
SET SWITCH
FEED+
LOAD&FEED
FEED-
MOTOR
FOCUS+
FOCUS-
TRACKING+
TRACKING-
FOCUS & TRACKING
COIL
2-1
SCK
IC503
24BIt DAC
BCK
LRCK
DATA
FMO, DMO
TRO, FOO
DBUS0 to 3
DBUCK, /DCCE
/DRST, DREQ
SFSY, SRAMSTB
VF1, VF2, VT1, VT2
MD, LD, VREF
CN001
VF1, VF2, VT1, VT2
LD, MD, VREF
PICK UP
OUTL, OUTR
DACMS, DACMC, DACMD
FEED+, FEED-
SPINDLE+, SPINDLE-
TRACKING+, TRACKING-
FOCUS+, FOCUS-, VREF
IC501
CD
LM0,LM1
DRIVER
/RST
BUS0 to 3
BUCK, /CCE
IC561
REQ
BUS SWITCH
LCD & Key control section
REMOCON
VOL1
EN601
VOL2
ENCODER
KEY0, KEY1
S401 to S416
KEY2, KEYIN
KEY MATRIC
OSC,CS2
RES, WE
RE/RD
FLASH ROM
A0, D0 to D7
CN402
LCD
MODULE
Main amplifier sec
CD.L
IC581
CD.R
CD LPF
1.8V
IC521
3.3V
SW1
SW2
PSW
CN701
CN401
IC405
REM
KEYDATA
DISPCE, DISPCK
IC401
DISPDATA, SBT, SBD
LCD
SAOUT, SACLK
MICON
A1 to A21, D0 to D15
CL1
RY/BY, RE/RD, CS1
CL2
WE, ROMRST
CL3
IC402
Q421 to Q432
LED DRIVER
D451 to D452
LCD LIGHTING
IC703
EPROM
IC702
RESET
Q841, BZ84
BUZZER
KEYDATA
REM, DI
DISPDAT
SAOUT,
I
C
C
D