2-1
Block diagram
POSITION
SET SWITCH
LOAD&FEED
MOTOR
SPINDLE
MOTOR
SW1, SW2
PICK UP
PSW
SW1
SW2
CN501
IC501
CD
DRIVER
IC541
D.SERVO
& DSP
IC581
CD LPF
IC503
24BIt DAC
IC561
BUS SWITCH
IC501
CLOCK GEN.
DBUS0 to 3
DBUCK, /DCCE
/DRST, DREQ
BUS0 to 3
BUCK, /CCE
REQ
FMO, DMO
TRO, FOO
LM0,LM1
FEED+, FEED-
, SPINDLE-
T, TRACKING-
FOCUS+, FOCUS-, VREF
VF1, VF2, VT1, VT2
MD, LD, VREF
SFSY, SRAMSTB
SW1
SW2
PSW
CN401
CN701
C
IC702
RESET
IC703
EPROM
IC521
1.8V
3.3V
FEED+
FEED-
SPINDLE-
VF1, VF2, VT1, VT2
LD, MD, VREF
REM, DI
DISPDAT
SAOUT,
OUTL, OUTR
DACMS, DACMC, DACMD
CD.L
CD.R
EN601
ENCODER
I
CN001
FOCUS & TRACKING
COIL
FOCUS+
FOCUS-
T
TRACKING-
CD servo control section
Main amplifier sec
BCK
LRCK
DATA
/RST
SCK
D
C
KEYDATA
Q841, BZ84
BUZZER
S401 to S416
KEY MATRIC
KEY0, KEY1
KEY2, KEYIN
VOL1
VOL2
KEYDATA
DISPCE, DISPCK
DISPDATA, SBT, SBD
SAOUT, SACLK
IC402
FLASH ROM
Q421 to Q432
LED DRIVER
IC401
LCD
MICON
OSC,CS2
RES, WE
RE/RD
A0, D0 to D7
A1 to A21, D0 to D15
RY/BY, RE/RD, CS1
WE, ROMRST
CL1
CL2
CL3
IC405
REMOCON
REM
LCD & Key control section
CN402
LCD
MODULE
D451 to D452
LCD LIGHTING
Содержание KD-AR870J
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