Re: SB100, '78 Stern Wild Fyre sound
- From: "Action Pinball" <staff@xxxxxxxxxxxxxxxxx>
- Date: Thu, 22 Dec 2005 16:35:27 -0700
If you're not getting any "hum" from the speaker, then the
connections/wiring from the board to the speaker may not be good- open
circuit somewhere. If it is "humming", then most likely you've got
something else on the board that is to blame- or signal not making it over
from the MPU board- those ribbon cables are notorious for bad connections.
May even have a stuck address or data line or other CPU signal- I had a
Stern Magic once that the VMA line was stuck on the sound board- it would
halt the MPU whenever sound board was plugged in. Replaced a 740x chip and
that cured it.
Ray J.
--
Action Pinball & Amusement, LLC
Salt Lake City, Utah USA
Web: www.actionpinball.com
We're serious about pinball. Anything else is just for fun!
"bobnatlanta" wrote:
> Or rather no sound.
>
> The speaker is good, tested with another source. All caps on the SB
> 100 have been replaced. Connectors between MPU and SB have all been
> replaced. Pot on speaker replaced.
>
> Nothing.
>
> Any other ideas?
>
.
- References:
- TECH: SB100, '78 Stern Wild Fyre sound
- From: bobnatlanta
- TECH: SB100, '78 Stern Wild Fyre sound
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