XV-DV333
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7.1.7 METHOD FOR DIAGNOSING DEGRADATION OF THE LDs ON THE PICKUP ASSY
DVDM ASSY
B
SIDE A
Front side
05SD PICKUP ASSY
CN101
R321
R322
R325
R326
R325
R326
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 05SD Pickup Assy 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 DVDM
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 DVDM
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 05SD Pickup
Assy.
Содержание XV-DV333
Страница 19: ...XV DV333 19 5 6 7 8 5 6 7 8 C D F A B E R CY B Cb G Y C V S_C S_Y D B 1 2 B 1 2 DVDM ASSY AWM7964 ...
Страница 20: ...XV DV333 20 1 2 3 4 1 2 3 4 C D F A B E 3 4 DVDM ASSY 2 2 A B 2 2 B 2 2 DVDM ASSY AWM7964 D ...
Страница 22: ...XV DV333 22 1 2 3 4 1 2 3 4 C D F A B E 3 5 DSP ASSY CN951 D F 1 4 CN5620 C DSP ASSY AWX8587 C ...
Страница 38: ...XV DV333 38 1 2 3 4 1 2 3 4 C D F A B E 3 13 DISPLAY and LED ASSYS H CN5611 F 1 4 DISPLAY ASSY XWZ3979 H ...
Страница 50: ...XV DV333 50 1 2 3 4 1 2 3 4 C D F A B E SIDE B F CN5611 CN5502 CN5501 ...
Страница 51: ...XV DV333 51 5 6 7 8 5 6 7 8 C D F A B E SIDE B CONTROL ASSY F XNP3085 C F CN5701 CN5620 CN5613 CN5612 01 ...
