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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.
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Il download del Service Manual JVC HR 4100 non é stato eseguito
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The Service Manual was just as expected, complete with schematics and I was able to download it in less than an hour after I ordered it. The only problem with these is that the schematics are hard to read due to the small font. I could remedy this by printing them on a larger printer.
XL-520H,520E/CP-520,520E
� LCD indication error.
Is +5V applied to the pin 8 (VDD) of IC701? No Is +5.6V applied to the emitter of Q704? Yes Yes Check the pattern between Q704 and IC704. Check the pattern between Q704 and CNS603.
No
Is +5V applied to the pin 38 (SYS STOP) of IC701? No Yes
Check the PWB pattern between the collector of Q702 and Q701.
Check the peripheral parts of IC701 and LCD701.
� Laser lighting failure.
Is +2.5V applied to the pin 42 of IC802? Does the laser come on when pattern cut between pin 21 of IC801 and pin 42 of IC802. Yes Yes No Check the PWB pattern between IC701 and IC802 (BUCK/CCE/ BUS0~3) Is approx. 2V applied to the collector of Q801. No Yes Check CNW802. If it is normal, the optical pickup is faulty. Check the peripheral parts of IC801 and Q801. If it is normal, the optical pickup is faulty.
No
� Focus failure.
Does the optical pickup move up and down when the disc is removed? Yes Is the following waveform ouput at the pin 11 (FEI) of IC801 when the disc is set?
Pin11 (FEI)
No
Check as stated in item "FOCUS SERVO SAWTOOTH WAVE FAILURE".
Check the periphery of IC801 and CNW802. is it normal? No Yes The optical pickup is faulty. Yes The periphery of IC801 or CNW802 is faulty.
Pin16 (FSO)
Yes
Pin6 (SBAD)
Is the waveform shown above input at the pin 50 (SBAD) of IC802? Yes IC801 is faulty.
Check the pattern between pin 6 of IC801 and pin 50 of IC802. No
� 32 �
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