Service manual / schematic / help - Protek P3502 (Hung Chang)

Discussion in 'Electronics Resources' started by shimniok, May 3, 2009.

  1. shimniok

    Thread Starter New Member

    Mar 21, 2008
    I hope this is the right forum. Need a little help...

    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 edited: May 3, 2009