F1 Service Manual

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Thanks for sharing, NP! A couple of other minor notes:

On p.7, the statement that the drain of Q1 operates at about 3V should instead refer to Q7, I think.

Also, in the amplifier schematic, I believe that R20 should go to the + supply rail, not to the right output terminal as shown.

Several nice touches here, if I may be so bold. I especially like the dual use of thermistors as inrush current limiters and line voltage jumpers.
 
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lumanauw said:
There are 2 zeners for protection at input. Somewhere I read that zeners that biased with low current can make noise. Does it make noise here?

The zeners are not in conduction, so they don't make noise.

BTW, thanks everybody, especially Grey for the corrections.
Desmond is posting a pdf file, but it's still huge - I couldn't get
pdfwriter to make it small and still retain the detail on the
board layouts.
 
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