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Old 01-14-2017, 10:35 PM
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mr_fixer mr_fixer is offline
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Join Date: Jul 2007
Location: Tennessee USA
Posts: 604
Hi all, I got the service manual from Findm keepm today and spent most of the day checking everything i can, to no avail. the 2 main symptoms are low voltage in the horizontal driver circuit, expected 33 volts got 6 and the 130 supply is around 21 volts. this is one of those switching power supplies that has 2 types of protection circuits over voltage shutdown and current limiting. I've taken a pic of the waveform on the switch mode regulator what i have vs what the book says it should look like, any hint on what i should try next?
Logan
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