Posted By
Retroshire
on 2021-07-20
04:11:37
|  Re: Commodore 16: Black and white screen on Composite, color on the RF
Today I swapped the Video connector. Not resulting in color. No visual problems beneath it.
When the modulator is ok, the videoconnector is ok, the videocable is ok, the color signal from the TED is ok then it must be one of the components in the video circuit. So one of the ceramic or elco condensators is main suspect?
Already swept: CT1 trimmer, Q3 transistor, EM4 ceramic, C11 ceramic, C12 ceramic
Next swap actions: EM3, EM5, C31
Any suggestions for other swappings?
To bad I don't have a oscilloscoop....
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