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JVC KDSH77
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of JVC KDSH77 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Another excellent buy! A fully readable PDF archive. Good prints!!
 CT32L8G PANASONIC Service Manual by Matteo Vannini;
It is wonderful done!!! a great job in scanning the manual. Superior quality in all the electric scheme. Very understandable and net!!! Thank you!
 PROFIL 3563Z LOEWE Service Manual by jorge garcia;
muy buen manual por lo completo de este algunos esquemas estan muy divididos lo que hace algo dificil el seguimiento.
 KV29C5E SONY Service Manual by jorge garcia;
very good manual, with detail and clarity in esquematic diagrams and waveforms .
 PM3216 PHILIPS Service Manual by Ivan Semyonov;
Very quality copy of original service manual, which contains the circuit diagrams, PCB and lists of components, well as recommendation for calibration procedures of device, also everything else, that need for repair, tuning and use this oscilloscope. All presented copies have high-resolution, so you can view all in detail. This manual will very useful for simple owners and for repairers. I recommend these manual, because myself is owner of Philips PM3216 and I need sometimes servicing these oscilloscope (principally calibrating). Also, these document is an example of excellent design of technical documentation.

Text excerpt from page 18 (click to view)
KD-SH77/KD-SH55

Feed Section
Is the voltage output at IC521 pin "53" 5V or 0V? NO Is the wiring for IC521 (90) ~ (100) correct? NO YES NO YES YES Is 5V present at IC581 pin "11"? YES Check the vicinity of IC521. Is 6V or 2V present at IC581 "5" and "6"? NO Check IC581. Check the feed motor connection wiring. NO Check CD 9V and 5V.

Is 4V present at both sides of the feed motor? YES Check the feed motor.

Focus Section
When the lens is moving: NO Check the circuits in the vicinity of IC581 pins "15" ~ "18". YES YES Check the pickup and its connections.

4V
Does the S-search waveform appear at IC581 pins "17" and "18"?

Spindle Section
Is the disk rotated? YES YES Does the RF signal appear at TP1? YES Is the RF waveform at TP1 distorted? YES Proceed to the Tracking section NO Check the circuits in the vicinity of IC501 "19" ~ "24" or the pickup Check the spindle motor and its wiring. Check the vicinity of IC581. NO Is 4V present at IC581 pins "7" and "8" ? NO Is 4V present at IC521 pin "55" ? YES NO Check IC501 and IC521.

NO

Tracking Section
When the disc is rotated at first: YES Approx. 1.2 V Is the tracking error signal output at IC501 "12"? YES Check IC521. Check the circuit in the vicinity of IC501 pins "2" ~ "12". YES Check the pickup and its connections.

1-18

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