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- Very good scan quality, PERFECT!
- Sehr gute scan Qualitaet, empfehlenswert!
Wolfgang Sundhaus
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Good site, works ok and you get what you order, no problems experienced, got my manual within a day. A++++
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Original well scanned manual. Got the job done. Microwave problem found & corrected. For $5 and a new magnitron from ebay, it was a cheap and good the first shot fix. Electrical schematics allowed me to mage sure every thing else was ok before cutting and order for parts. Hard to live without.
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I was very skeptical of this website, I have never downloaded manuals before. I put it on the AMEX and payed through Paypal to ensure protection. I got the manual exactly as described and now I can replace the filter capacitor for this amp. Great Price, others selling for 12.99 or more and this is the same manual. I will search out this website for other manuals. Thank you
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Manual was reasonably easy to follow. I am not an engineer or know much about electronics but with the manuals help I was able to figure out the problem, identify the part required for the repair. Replacement part cost around $30. Whilst replacing the part I was telling myself, "this aint gonna work cos it seems far too easy". Took about 15 minutes to do and my plasma TV works a treat. Would never have been able to do this without the service manual.
KD-S901R
3.2.1 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.
3.2.2 Focus section
NO
Is the wiring for IC561 pin 27? 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.
NO
Is 6V or 2V present at IC561 "4" and "5"? NO Check IC501.
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
3.2.3 Spindle section
Is the disk rotated? YES Does the RF signal appear at RF test point? YES Is the RF waveform at RF test point distorted? YES Proceed to the Tracking section
3.2.4 Tracking section
NO
Is 4V present at IC561 pins "6" and "7"? YES Check the spindle motor and its wiring
NO
Is 4V present at IC521 pins "41" ? YES Check the vicinity of IC561.
NO
NO
Check IC521 and IC561.
Check the circuits in the NO vicinity of IC561 "19"~ "24" or the pickup
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 IC541.
(No.49821)1-25
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