Re: Tempest repair problems

Well your y has no swing. So that's your problem area. Check ac volts on
the tl082 outputs to start narrowing it down. Also check your -+ 15 volts
On Jan 3, 2012 3:12 PM, "Rich Harkoff" <rharkoff1@new.rr.com> wrote:

> **
> Hi Kev,
> With game in test mode X out has 3.7volts ac, Y out zero volts ac. Don't
> have a scope nor access to one.
> Thanks,
> Rich
>
> BTW, OT did you see the tongue-in-cheek article from "The Onion"
> on Cowboys releasing Jerry Jones?
> See here
> http://www.onionsportsnetwork.com/articles/dallas-cowboys-release-jerry-jones,2815/
>
> ----- Original Message -----
> *From:* Kevin Moore <talon.k@gmail.com>
> *To:* vectorlist@vectorlist.org
> *Sent:* Tuesday, January 03, 2012 2:19 PM
> *Subject:* Re: VECTOR: 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 16:16:53 2012