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Suggestions on why my BarcoGraphics 808s' Red CRT isn't blanking?
I'm nearly positive I've determined that the problem with my 808s is that the red tube isn't blanking on the retrace/return each scan...It is difficult to troubleshoot this problem because I do not have a proper BarcoGraphics 808s (not 808, the modules are different) service manual.
Does anyone here have any suggestions on why my BarcoGraphics 808s' Red CRT isn't blanking? Is there anything I can do to verify with a 'scope that the module (I think it's Barco P/N R762720 which deals with blanking; can anyone verify) is actually signalling the CRT to blank during its' retrace cycle?
ANY help would be immensely appreciated.
Does anyone here have any suggestions on why my BarcoGraphics 808s' Red CRT isn't blanking? Is there anything I can do to verify with a 'scope that the module (I think it's Barco P/N R762720 which deals with blanking; can anyone verify) is actually signalling the CRT to blank during its' retrace cycle?
ANY help would be immensely appreciated.
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