RE: G08 with too much current

Tom,
I've got a couple of G08 HV units that I have no need for. If you end up
needing one, or if anybody else on the list needs one, let me know off-list.
Lewis

> -----Original Message-----
> From: Tom McClintock [mailto:tomm@mgcap.com]
> Sent: Tuesday, March 18, 2003 9:29 AM
> To: vectorlist@synthcom.com
> Subject: VECTOR: G08 with too much current
>
>
> Hey Guys,
>
> I've got a G08 that I'm working on (yeah, what else is new), and I'm
> hoping for some direction. The deflection board seems to work
> just fine.
> When I have the HV connector P900 disconnected, I get proper voltages,
> deflection, etc.
>
> My problem seems to lie in the HV section. When I connect
> P900, the main
> power input fuse to the deflection board - F400 - begins to glow, and
> both diodes D406 and D407 start smoking. So, I've obviously got
> something that is drawing 5 or more amps on the +126V line.
>
> Through process of elimination, I've pretty much replaced
> everything on
> the HV regulator PCB with no improvement. Would a shorted HVT
> cause this
> symptom? I have yet to ring it.
>
>
> For those that want to follow along, you can check out the schematics
> here on page 36:
> http://www.mikesarcade.com/arcade/manuals/monitor/G08.pdf
>
>
>
>
> TIA,
> tom
>
>
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Received on Tue Mar 18 08:48:53 2003