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I was at first dubious about payiong for downloaded manuals but having done so, I was extremely impressed with quality of the two manual I ordered, well worth the small price I paid.
I would highly recommend these to my friends.
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reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
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Manual was just as described!!! I odered it and in less than a day was able to download it and the text was clear and pages were all complete just as the original manual was. Purcashed this for a friend and they were more than happy. Perfect all around!
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Excellent service and prompt delivery. But it's not a manual - only 4 pages wiring diagrams.
Thanks.
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The manual I purchased was exactly what I needed to repair my Toshica television. The manual contained schematics and troubleshooting information that was very helpful.
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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