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There are currently no product reviews.
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
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The downloaded quality was as good as the orignial
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This is a great and complete Service Manual for the Sharp GF8585HB. Giving full and detailed technical insight. Good to find these manuals online.
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Everything was ok with the manual. If I have a small complaint, is that I ordered it during the weekend and I think you guys were closed. But I did receive it late Sunday. I will surely order from you again
SD-CX1H
� The triangular wave for focus servo does not appear.
Is +3.3V applied to pin 6 on IC3 ? No Yes Does the triangular wave appear at pin 33 on IC3 ? <Refer to the waveform diagrams on page 73.> Yes Does the triangular wave appear at pin13 of IC1 ? <The same waveform as above> Yes Does the saw tooth wave appear between pins 3 and 4 of IC1 ? <Refer to the waveform diagrams on page 73.> Yes Does the saw tooth wave appear between pins 3 and 4 of CNS2 ? <The same waveform as above> Yes The PWB pattern has been cut. No The connection of CNS2 is poor or the optical pickup is defective. Check the parts around IC1 and the power supply line. IF OK, IC1 is defective. No The connection of signal lines between pin 33 on IC3 and pin 13 on IC1 is poor. No Check the parts around pin 33 on IC3. If OK, IC3 is defective. The +3.3V line of IC3 is defective.
No
� The disc motor CLV servo is defective.
Does the disc motor rotate in the CD test mode 3 ? Yes
No
Is the voltage applied between pins 27 and 28 of IC1 for about 0.3-1.5 seconds when switching from the CD test mode 2 to 3 ?
Yes
The disc motor is defective or wires have broken.
0.3~1.5 seconds
No
Does the disc motor rotate too rapidly or slowly ? Yes
Is the pin 41 on IC3 in the high state for 0.3-1.5 seconds and does it pulse when switching from the CD test mode 2 to 3 ? <Refer to the waveform diagrams on page 72.> Yes
No
IC3 is defective.
5V 0.3~1.5 seconds
C3 is defective or wires have broken. Does the eye pattern appear at pin 19 on IC2 ? <Refer to the waveform diagrams on page 72.> (It is OK even if the waveform is not clear.) Yes (Vp-p 1.2V waveform) Recheck whether the optical pickup objective is dirty. If it is dirty, clean it. Check the connection between pin 19 on IC2 and pin 24 on IC3. If OK, the optical pickup is defective.
No
Is the eye pattern Vp-p 1.2V inputted to the pin 24 on IC3 ? Yes
No
Check the PWB pattern and C33.
IC3 is defective. (After checking the parts around it, replace it.)
� 77 �
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