Re: Tektronix 2246 flickering screen, ch2 not working.


grusus@...
 

I know.
Hovewer on this one it is many times worse, as on others that I have seen and compared to. Something is not right for sure. I have paused with repair for now, because I am waiting for parts to finally fix this not working channel (they will arrive tommorrow) Then I will go again and check everything. For now i suspect DAC's for readout (U2412&U2413). I have no Vref on pins 14,but on other side of R2413&R2415 I have + 2,5V,

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