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Author Topic: Service manual / help - Protek P3502 (Hung Chang) Oscilloscope  (Read 801 times)
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shimniokTopic starter
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« on: May 03, 2009, 08:33:57 PM »

I have this Protek P3502 (aka Hung Chang 3502) Oscilloscope that has a couple of power resistors that got cooked.

I don't have the service manual or a schematic so this is a nightmare to figure out. Smiley

Anyone have a schematic or service manual?

Btw, I think these resistors are part of either the horizontal or vertical amp (ultimately the signal finds its way to the tube and it looks sort of like a symmetrical circuit...  Huh)

Thanks!
« Last Edit: May 03, 2009, 09:04:00 PM by shimniok » Logged

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« Reply #1 on: May 27, 2009, 07:53:44 PM »

Are you just trying to figure out the resistor values so that you can replace them?
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