Author Topic: Service manual / help - Protek P3502 (Hung Chang) Oscilloscope  (Read 4889 times)

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Offline shimniokTopic starter

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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...  ???)

« Last Edit: May 03, 2009, 08:04:00 PM by shimniok »
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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