Author Topic: Service manual / help - Protek P3502 (Hung Chang) Oscilloscope  (Read 6053 times)

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Offline shimniokTopic starter

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Service manual / help - Protek P3502 (Hung Chang) Oscilloscope
« on: May 03, 2009, 07:33:57 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. :)

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...  ???)

Thanks!
« Last Edit: May 03, 2009, 08:04:00 PM by shimniok »
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Michael Shimniok
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Re: Service manual / help - Protek P3502 (Hung Chang) Oscilloscope
« Reply #1 on: May 27, 2009, 06:53:44 PM »
Are you just trying to figure out the resistor values so that you can replace them?
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