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Service Manual that I received was very helpful to me. Thank you.
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The manual is well organized and is easy to read. The chapters are following normal way to proceed.
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This scanned manual is well done in that most all the pages except for one is straight and clear- the way I would do them. One page was upside down but that happens. For the money that is charged on this site you get a pretty good deal. Now with complex repairs, I still prefer to us paper manuals which I have to buy at stereomanuals but the one I got here was much less than the $45 he was charging but this is a larger than normal manual for three different units. I am a picky manual user because I have used original manuals from Sony and Teac.
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Very useful service manual, was exactly what i needed.Good quality,reasonable price.Thank you.
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Acurate informations inside the SM and I could repair my old Sansui SC-3330 without any problems. Thanks.
CHAPTER 3. TROUBLE SHOOTING
1. Trouble shooting 2. Device problem 3. Power source abnormal 4. Power on problem 5. Power line problem 6. 3.3V/5V problem 7. VTT problem 8. VCC_CORE problem 9. Battery charge problem 10. Sheet Battery charge problem 11. Clock problem 12. MEMORY problem 13. BIOS problem 14. HDD problem 15. LCD problem 16. CRT problem 17. Keyboard problem 18. Touch pad problem 19. Audio problem 20. Modem problem 21. PCMCIA problem 22. IR problem 23. LAN problem 24. USB1 problem 25. USB2 problem 26. USB HUB problem 27. IEEE1394 problem 28. CDROM problem 29. FDD problem 30. PDC Adapter problem
1. Trouble shooting
Start
System work?
Y
Device problem Charge problem
N
Power on
Power LED light?
N
Y
Power source abnormal
Y
BIOSCS# OK?
N
Device problem 2 POWEROK = H?
N
Y
Check R90,R570,U14,U16
N
X504 32.768kHz OK?
Y
VCC_RTC >2.6V
N
Y
Check D16,D18,D20, C160,R125,C152
Check X504,R554, C528,C538
PCIRST# OK? RSTDRV OK?
N
Y
Check U510
N
every Clock OK?
Y
Clock problem
Check U509,U510
1/30
 $4.99 PC-AX40 SHARP
Parts Catalog Parts Catalog only. It's available in PDF format. Useful, if Your equipment is broken and You need t…
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