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This is an excellent information source. Great quality and tons of info regarding technical service for the Technics SH8065.
5 stars on this manual since it is the complete version, not the half manual you find free for download all over the web. Good job.
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An excellent service manual contains dismantling locations of components, electronic adjustments,worth the money.
Caracteristiques,circuit adjusment,notes on schematis diagram,it's a good service manual,to live well,thanks.
2. Servo Circuit
A. Unstable Video in PB Mode.
Does the on screen noise level change periodically?
Do CTL pulses appear at IC501 pin 97?
Does the CFG divideIC501 waveform appear at pin 87?
Is the height of the CTL Head adjusted correctly?
Do the CTL pulses move when TRK is operated?
Adjust the CTL Head.
Does the Video Envelope waveform appear at IC501 Pin 9?
Check Y/C Block.