Beseler Dichro S

Cordura98

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Jun 9, 2021
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Hello - I read a post a while ago from ic-racer about schematics for the internal power supply. Do you have those schematics? I would like to rebuild my power supply. Also, there is a lag when the light is turned on. I pulled the relay out and jiggled it around. Seemed to have cured the lag somewhat. Thanks.
 

mshchem

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You have a bad opto-isolator. Pretty sure it's marked isolated on the PCB. These couplers all go bad. I will need to check my notes. I've fixed 4 or 5 of these over the decades, in every case it was the same bad iso causing the lamp delay.