Re: Hameg HM307-3 Cleaning and Repair
Given that only two things have changed i.e. the pot and the zener, I would be double checking those changes. Is the potentiometer wired correctly? Is the zener the right way around? Is the pot is definitely 470k not 470Ω? Might seem silly but....
If you disconnect the -1kv line where it comes in at R357 and measure it then, what voltage do you get?
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