|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Excellent quality service manual. Quick processing, fair prices. Love to do business again. Thank you!!!
;
Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
;
I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
;
Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
;
It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
XL-520H,520E/CP-520,520E
� LCD indication error.
Is +5V applied to the pin 8 (VDD) of IC701? No Is +5.6V applied to the emitter of Q704? Yes Yes Check the pattern between Q704 and IC704. Check the pattern between Q704 and CNS603.
No
Is +5V applied to the pin 38 (SYS STOP) of IC701? No Yes
Check the PWB pattern between the collector of Q702 and Q701.
Check the peripheral parts of IC701 and LCD701.
� Laser lighting failure.
Is +2.5V applied to the pin 42 of IC802? Does the laser come on when pattern cut between pin 21 of IC801 and pin 42 of IC802. Yes Yes No Check the PWB pattern between IC701 and IC802 (BUCK/CCE/ BUS0~3) Is approx. 2V applied to the collector of Q801. No Yes Check CNW802. If it is normal, the optical pickup is faulty. Check the peripheral parts of IC801 and Q801. If it is normal, the optical pickup is faulty.
No
� Focus failure.
Does the optical pickup move up and down when the disc is removed? Yes Is the following waveform ouput at the pin 11 (FEI) of IC801 when the disc is set?
Pin11 (FEI)
No
Check as stated in item "FOCUS SERVO SAWTOOTH WAVE FAILURE".
Check the periphery of IC801 and CNW802. is it normal? No Yes The optical pickup is faulty. Yes The periphery of IC801 or CNW802 is faulty.
Pin16 (FSO)
Yes
Pin6 (SBAD)
Is the waveform shown above input at the pin 50 (SBAD) of IC802? Yes IC801 is faulty.
Check the pattern between pin 6 of IC801 and pin 50 of IC802. No
� 32 �
|
|
|
> |
|
