CH-X470RF
SERVICE MANUAL
CD CHANGER
CH-X470RF
KS-RF50
CH-X470
Area Suffix
J ------ Northern America
CH-X470RF is a combination of CH-X470 and KS-RF50.
KS-RF50 is a combination of Remote control and the RF unit.
Contents
Safety precaution 1-2 Trouble shooting 1-21
Preventing static electricity 1-3 Flow of functional
Disassembly method 1-4 operation until TOC read 1-23
Forced eject procedures 1-20 Description of major ICs 1-27
No.49668
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
Dec. 2001
TC9490FA
Synchronous
Data
Correction D/A
signal LPF LPF Mute Audio output
slicer
circuit converter
EFM
TA2147F-X demodulator
VCO
RF amp. AGC amp.
PLL CLV
RAM
TMAX servo
servo
signal
interface
Sub code
decording
Focus Focus
eror servo Micon
A/D
amp. amp. interface
Digital
equalizer
Tracking Tracking Servo
auto
error servo control
adjustment
amp. amp.
PWM
FAN8037
Focus
D/A
driver
Tracking
Microprocessor Bus
driver J-BUS
control buffer
Feed
driver
Mecha.detect
switch
Eject switch
Spindle
driver
Positioning Tray motor
motor driver driver
2-1
1
3
4
2
5
Block Diagram
A
Tracking actuator
Spindle motor
Feed motor
Feed motor
Focus actuator
B
C
CH-X470RF
Standard schematic diagrams
CH-X470RF
Main circuit 1/2
5
4
3
2
1
SIGNAL
AB C D E F G
2-3
CH-X470RF CH-X470RF
Main circuit 2/2
5
4
3
2
1
SIGNAL
AB C 2-4 D E F G H