Re: Dead IBM 8513 repair, quiet ticking, no HV - I have no ideas left
Posted on 2018-07-29, 15:56
Did you test the horizontal output transistor? A shorted HOT is the most common cause for the tick-tick-tick sound. And yes, it's normal for the degaussing PTC to get hot. I didn't test any transistors when I was checking components, mainly just passives. Would that cause the entire HV circuit to …