|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Was very fast and accurate service. Just what I needed. I recommend to everyone.
 ;
Very good scan quality, only PC Board scan not enough contrast.
;
First of all I must say that I received the manual in just a few minutes after placing the order. The copy is well done and very readable. I will buy others soon... Thanks, Meyer
;
Good service manual. I gat all I want. Copy is good, but could be better. All clear and useful. I sincerely recommend.
;
The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.
KD-SX787
Feed section
Is the voltage output at IC521 pin "40" 5V or 0V? YES Is 4V present at both sides of the feed motor? YES Check the feed motor. NO Is 6V or 2V present at IC561 "4" and "5"? NO Check IC561. NO Is the wiring for IC521 (56)~(64) correct? NO YES Is 3.3V present at IC561 pin "20"? YES Check the vicinity of IC521. YES Check the feed motor connection wiring. NO Check CD 8V and 5V.
Focus section
When the lens is moving: 4V
Does the S-search waveform appear at IC561 pins "8" and "9"?
NO
Check the circuits in the vicinity of IC561 pins "8","9"and"15". YES
YES
Check the pickup and its connections
Spindle section
Is the disk rotated? YES Does the RF signal appear at TP1? YES NO Is 4V present at IC561 pins "6" and "7"? YES Check the spindle motor and its wiring NO NO Is 4V present at IC521 pins "41" ? YES Check the vicinity of IC561. Check IC521 and IC501. NO
Is the RF waveform at TP1 Check the circuits in the distorted? NO vicinity of IC501 "19"~ "24" or the pickup YES Proceed to the Tracking section
Tracking section
When the disc is rotated at first:
YES
Approx. 1.2V Is the tracking error signal output at IC501 "11"?
Check the circuit in the vicinity of IC501 pins "2"~"12".
YES
Check the pickup and its connections
YES Check IC521.
1-20
|
|
|
> |
|
