I'm checking the performance of my newly acquired SM-220 and note that the levels of the two tone generator measured at TP1 and TP2 are 5.8V p-p which is nearly double the specified 3V.
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So I decided to adjust them but found this to be impossible because VR108 is inaccessible (under the CRT) and I can't see VR107 anywhere. My PCB doesn't match the drawing in the service manual.
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Any ideas please?
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--
Mike G8GYW
