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I know what you're all thinking, change the HV power supply.
I did, this did not cure the problem.
The problem is, no HV on this 1996 8500. I have:
Changed the LV and HV powers supplies with known working units.
Changed the H deflection with a known working module
Pulled the focus board (the set's HV will still fire up with the focus board pulled from past experience)
Replaced the vertical and convergence boards with known working ones from an 8110 which I believe are the same.
No error lights are on on the back, BTW.
Changed CPU boards
Pulled the quad decoder.
Disconnected each CRT socket and HV lead to see if a shorted tube was dragging the HV down.
It's now down to the motherboard or something weird.
Does anyone have the voltage that should be present at the HV connector that plugs into the motherboard? Or any other hints?
Thanks!
Curt
I did, this did not cure the problem.
The problem is, no HV on this 1996 8500. I have:
Changed the LV and HV powers supplies with known working units.
Changed the H deflection with a known working module
Pulled the focus board (the set's HV will still fire up with the focus board pulled from past experience)
Replaced the vertical and convergence boards with known working ones from an 8110 which I believe are the same.
No error lights are on on the back, BTW.
Changed CPU boards
Pulled the quad decoder.
Disconnected each CRT socket and HV lead to see if a shorted tube was dragging the HV down.
It's now down to the motherboard or something weird.
Does anyone have the voltage that should be present at the HV connector that plugs into the motherboard? Or any other hints?
Thanks!
Curt