Beseler Dichro S

[Cordura98]

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]

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.