Re: Tempest repair problems

What are the AC voltages running on the X and Y output. Do you have a scope
to put on the outputs?

If you do, have a look at my page showing your wave forms with the diamond
pattern in test.

http://txvectorarcade.com/tiki-index.php?page=Tempest&no_bl=y

Kevin

On Tue, Jan 3, 2012 at 1:22 PM, Rich Harkoff <rharkoff1@new.rr.com> wrote:

> **
>
> Hello and Happy New Year,
>
> Looking for any suggestions on a fix for a spare Tempest boardset. I got
> this and several other PCB’s for free from a local Op who was cleaning
> house, when I plugged it in my game there was no Y output, found that C13
> was bad, replaced that and now I have voltage swings on both X&Y outputs.
> Someone replaced all the TLS082 chips and I verified that they are good. So
> here is where I'm at, 6100 fully functional, all voltages on PCB correct,
> goes into self test, no tones heard except the 4 decending tones, game
> plays blind as far as I can tell. Spot killer "on" and when I turned up
> brightness momentarily to override it, the screen just showed a small red
> dot in the center.
> Thanks in advance for any help.
>
> Rich
>
> Green Bay
>

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Received on Tue Jan 3 15:19:15 2012