XV-DV363
18
1
2
4
1
2
3
4
C
D
F
A
B
E
5. DIAGNOSIS
5.1 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP
ICT
FC1
1
23
3
4
5
1
CN5601
C309
R325
R373
R371
C310
R326
R374
Q307
R322
Q308
R321
R310
C145
C146
C144
C161
R136
C132
C131
C133
C320
C781
C771
L772
C772
IC771
R771
C773
R772
R1001
1
XWM
[CN5603]
B1
Case when this diagnosis is required :
When playback of any disc, including a test disc (DVD: GGV1025, CD: STD-905), won't play or doesn't play
How to diagnose
In the case mentioned above, degradation of the laser diodes (LDs) mounted on the 06SD Pickup Assy-S is suspected.
Measure the voltage between the two ends of one of the resistors mentioned below.
Measure the voltage between the both ends of R322 or R325 on the DVD MAIN
Assy. If the voltage is 0.4 V or higher, the 650-nm LD is degraded.
No playback of a DVD :
Measure the voltage between the both ends of R321 or R326 on the DVD MAIN
Assy. If the voltage is 0.4 V or higher, the 780-nm LD is degraded.
No playback of a CD :
If the measurements show degradation
of an LD, replace the 06SD Pickup
Assy-S.
DVD MAIN ASSY
B
SIDE A
Front side
PICKUP ASSY
CN101
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299