|
|
|
Who's Online
There currently are 5918 guests online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Very nice to have! Now it is no problem to understand how it is put together.
Helps me a lot.
;
good scans, all is clear. all pages in order. recommended
 ;
Très-très bon site, facile, très bon prix.
Au futur besoin, je n’hésiterais à faire appel à vous.
Merci
;
This is the correct service manual of SHARP RX-100H(BK) DAT.
;
The ervice manual for my 1982 Kenwood KR-1000 receiver is great! Full detail on all circuits with part number detail. I will definately be ordering more manuals for my other vintage equipment! Order was fulfilled quickly! Very efficient ordering process! Thnaks for your help! Great site!
5
6
7
8
7.1.7 METHOD FOR DIAGNOSING DEGRADATION OF THE LDs ON THE PICKUP ASSY
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
A
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.
No playback of a DVD :
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. If the measurements show degradation of an LD, replace the 05SD Pickup Assy.
B
No playback of a CD :
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.
05SD PICKUP ASSY
CN101
C
B
DVDM ASSY
D
R325 R326
E
R321 R322 R325 R326
Front side
SIDE A
F
XV-EV500
5 6 7 8
95
|
|
|
> |
|
