Operation Manual

47
XC-L7
Probe(10:1)
CH1 CH2
(X) (Y)
FE
TP1
(CN1102)
CD MAIN UNIT
START
Player
Oscilloscope
DC Mode
V : 5mV/div
H : 10mSec/div
DC voltage
0 ± 50mV
1. Focus Offset Check
2. Tracking Error Balance Check
Probe(10:1)
CH1 CH2
(X) (Y)
TE
TP1
(CN1102)
CD MAIN UNIT
Player
Oscilloscope
DC Mode
V : 50mV/div
H : 5mSec/div
GND
LEVEL
A=B
A
0.001µF
Low pass filter
Check
Check
If not = repair
If not = repair
39kΩ
• Test mode
• None disc
• Test mode
FOCUS servo
SPDL servo
TRKG servo
→ CLOSE
→ CLOSE
→ OPEN
TEST DISC
PLAY
R=35mm
YEDS-7
START
•
B
Check and Adjustment
VC
GND
VC
GND
6
4
2
4