Wanted: Cosmic Avenger PCB repair

bolex

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My cosmic avenger was DOA. I'm hoping to find someone that can repair the PCB. Please let me know if you can help. Thanks!

XRX_1543.JPG
 
avenger

Not familiar with the game but if those squares are moving on your screen and you have game sounds, it possible you have a bad eprom or missing ones that controls the game video.
Look for a bent pin on your roms or eproms.
 
Yes. I tested PS and I pulled the PCB out and reseated ribbon cables and Eproms. I get the same screen each time (Along with a sound effect with a continuously rising pitch). It may not be completely dead, but it's not working. The PCB looks good though, very clean. The monitor looks great.

It's not DOA, as you have power and raster on the screen.. Have you tested the ps? Reseated any ribbon cables? Anything?
 
Cool, that clears up some questions anyone who works on these pcbs would ask.
Might have better luck finding a working pcb, as there aren't many people who touch these pcbs.. But you might get lucky! Check the "who fixes what" thread.
 
Never mind. :) I decided to give it one last try myself. I pulled all the EEPROM's and cleaned the contacts with an eraser on a number 2 pencil and also lightly used a high grit sand paper on the edge connector of the PCB. That's all it really needed.

2012-04-09_22-48-08_90.jpg
 
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