RE: 6100 Wavey Letters

I don't think that is 60 or 120 cycle noise, looks more like a problem in
the HV filtering. PErhaps there was a defective cap in the group you
replaced in the HV cage. Have you an ESR meter? One of the HF filter caps
might not have good ESR characteristics. See many caps are designed for 60
cycle operation, and have too high an internal resistance to be very
effective at 20Khz such as used in the HV circuit. This is where one of my
complaints about cap kits comes in - the caps are NOT the best for the job
UNLESS they match the factory standards.

John :-#)#

At 06:46 AM 10/19/00, Jon Raiford wrote:
>For those who wanted to see this, check out:
>
>http://204.240.133.33/~raiford/pics/tempest.jpg (this server may be slow)
>
>Jon
>
>
>At 02:53 PM 10/16/2000 -0400, you wrote:
> >Hey, you just explained what my Tempest looks like :) I haven't
> bothered pulling it to see what needs replacing.. Are these the 2 big
> caps on the deflection board? I can certainly take a pic of this for
> documentation purposes.
> >
> >Jon
> >
> >At 11:23 AM 10/16/2000 +1000, you wrote:
> > >60Hz ripple should look like waves on the lines, switching supply or
> HV ripple is usually tiny little jags on the lines. Someone should take
> pictures and post them up on Spies or somewhere for reference. I don't
> have any monitors or XY games running to demo this on...
> >
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  John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
  Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
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Received on Thu Oct 19 00:53:35 2000