Arcade Collecting > Restorations & repair
What's my first step? Sinistar - not working
RetroACTIVE:
These boards are very fixable. Take your time and do each repair/upgrade at a time. The 4164 upgrade is an easy fix that can be done rather quick, but make the power supply voltages your next priority. :cheers:
...awesome game by the way, it's in great shape!
geocab:
I turned the game on without the RAM chips installed which produced a sold yellow screen and I noticed for the first time that my monitor has Qbert burned into it slightly. ::) Crap. Guess I'll have to make due with that. Not sure I'll notice when playing Sinistar though since I never noticed it before.
geocab:
Hey guys, here's an update. Unfortunately I don't have time right now to post photos. The new RAM chips are installed and all of the capacitors on the power supply have been replaced and my Sinistar turns on and runs. The sound goes in and out though. How do I troubleshoot this?
CheffoJeffo:
--- Quote from: geocab on April 05, 2009, 12:52:19 am ---Hey guys, here's an update. Unfortunately I don't have time right now to post photos. The new RAM chips are installed and all of the capacitors on the power supply have been replaced and my Sinistar turns on and runs. The sound goes in and out though. How do I troubleshoot this?
--- End quote ---
First --- :applaud: :applaud: for getting her running!
Next --- I'll let someone like RetroACTIVE or Peale chime in about sound troubleshooting -- I chased sound issues on my Joust for years without nailing it down.
I would presume that Sinistar has similar test modes to other Williams games of the era -- does anything come up strange when you run the sound portion of the test ?
SirPeale:
Sound comes and goes...hm...check the connections on the sound pot, and check it's resistance levels as well. It might be bad, the connections might be crap.
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