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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.
CD-C811W/821W
� Check the tracking system.
Check waveform of IC1 pin 7 (TE). The waveform shown in Fig. 44-1 appears, and no-disc state appears soon. Tracking servo is inoperative. Yes Check the periphery of IC 1 pin 8 to pin 15, and IC 5 to CNP2.
Yes
Play is possible in TEST mode.
Yes
The unit will be initialized in Normal mode,but it will not playback..
Yes
Normal jump is impeded, and the program top cannot be reached.
5ms 1.00 V IC1 7 TE
Yes
Check the periphery of IC 1 pin 14.
Data cannot be read. Yes
Check the VCO-PLL system.
4
5 ms 5.0 V IC1 54 DRF
3
Figure 44-1 � Checking the spin system.
Play operation is performed without disc.
The turntable rotates a little. No The turntable fails to rotate or rotates at high speed.
Yes
The spin driver circuit is normal.
Yes
Check the periphery of IC1 pins 23 to 27, pin 39, and pin 40, IC2 pin 12 and pin 13, IC3 to CNP3.
� Checking the VCO-PLL system
Play operation is performed when disc exits. Yes Although HF waveform is normal, TOC data cannot be read. Yes Check PDO waveform (Fig. 44-2). Abnormal Check the IC1 pins 43 and 44, IC2 pins 3, 5, 7, 10, and 11.
Stop --> Play As VCO frequency is locked at 4.32 MHz, voltage of PDO rises and stabilizes. 2
0.5s 1.00 V IC2 3 PDO 0.5s 1.00 V IC1 16 FD
3
� Although HF waveform is normal and the time indication is normal, no sound is emitted.
Check IC2 pin 48 (EFLG). Yes Check IC2 pins 37, 40. Abnomal Check IC401 and POWER AMP. IC601. No
Figure 44-2
Usually, the number of pulses of flawless disc is 100 pulses/sec or less.
� 44 �
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