48
XC-L7
3. Pickup Radial/ Tangential Direction Tilt Adjustment
CH1
CH2
(X)
(Y)
TP1
TP1
Player
Oscilloscope
AC Mode
V : 20mV/div
H : 200nSec/div
Eye pattern
OK (Smooth)
4. RF Level Check
CH1
CH2
(X)
(Y)
Player
Oscilloscope
AC Mode
V : 50mV/div
H : 10mSec/div
1.2Vp-p
±
0.2V
NG
Check
If not
=
repair
Test mode
FOCUS servo
SPDL servo
TRKG servo
→
CLOSE
→
CLOSE
→
CLOSE
TEST DISC
PLAY
R=35mm
YEDS-7
TEST DISC
GGK1002
Remove lock tight.
8cm DISC
PLAY
Test mode
FOCUS servo
SPDL servo
TRKG servo
→
CLOSE
→
CLOSE
→
CLOSE
1
2
1
2
Probe(10:1)
RF
(CN1102)
CD MAIN UNIT
VC
GND
1
4
START
Probe(10:1)
RF
(CN1102)
CD MAIN UNIT
VC
GND
1
4
START
1
2