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Manual acquired with good resolution, complete in all its pages, very good policy of the folder where are saved all products purchased.
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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
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Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
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Good price for the manual and easy to locate on the site and download. Plus, just like the original. Thanks a lot.
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
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$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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