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We received the manual in a timely manner and it was exactly what we were expecting. Excellent replacement for original Service Manual.
All schematics are very legible. We are really satisfied.
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Fast delivery and good quality manual.
Very easily downloadable from a given url.
Will be pleased to buy again from this seller.
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Ottimo manuale, grafica ferfetta invio rapidissimo. Altissimo livello!!!!!
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Great PDF easy to read good info needed for replacment of belts and assembly and specs.
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complete and unabridged very good quality
easy to download.
recieved in two days.
2. Servo Circuit
A. Unstable Video in PB Mode.
Does the on screen noise level change periodically?
YES
Do CTL pulses appear at IC501 pin 97?
YES NO
Does the CFG divideIC501 waveform appear at pin 87?
YES
Is the height of the CTL Head adjusted correctly?
NO
Do the CTL pulses move when TRK is operated?
YES NO
Adjust the CTL Head.
Does the Video Envelope waveform appear at IC501 Pin 9?
YES NO
Replace IC501.
Replace IC501.
Check Y/C Block.
3-7
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