Joe,
I had a real struggle with a 6100 HV unit .. wouldn't go below 24kv, then not above 12, then not above 16 ... finally fixed it!
In fixing all of those I changed the zener diodes, both the two 13v and the single 150v (low and high problems respectively I think) and also the BU409 .. and obviously all of the electrolytic caps ... I may also have changed some of the MPSA06/56 small transistors .. it felt like virtually every bit of silicon on the HV board!
I think it's unlikely that the non-adjustable 16kv is a deflection board issue, check all the HV zeners, transistors and electrolytics first.
Steve
>
> From: "Bachmann, Joe" <Joe.Bachmann@citadelgroup.com>
> Date: Mon 28/Oct/2002 15:12 GMT
> To: vectorlist@synthcom.com
> Subject: VECTOR: WG 6100 HV help please
>
>
> I am having trouble with 3 HV units. I can only get 16kv out of them and can
> not adjust the HV higher or lower. I believe the issue was caused by a bad
> deflection board. I have checked Q900-905 and the resistors mentioned in the
> flowchart as well as the 160v 33uf cap. All are good. What am I missing?
>
> One of the units was working until I removed it from a working game and
> tested it with the deflection board I was working on. Is it possible that
> the deflection board damaged the HV unit somehow, or just a coincidence?
>
> Thanks,
> JB
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Received on Mon Oct 28 07:39:42 2002
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