Arcade Collecting > Restorations & repair
I don't believe it, another classic added => Centipede ! FINISHED !!!!
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1st: Dutch License....1989 !
3rd: silver coin door ?
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1st.....the trackball feels completely worn out....
2nd: Both sides side-art in excellent condition.....this is uncleaned !!
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1st: Very nice, completely intact instruction sheet on inside !
2nd: This one has been in a barn for some time....lots of REAL insects/spiders !! :)
3rd: G07, no neck-glow.....
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1st: Original docs, all there !
2nd: PCB......LED works.....nothing else.....no test-mode....nothing :( !!
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Today I made a quick (temporary) SCART connector for the Centipede and connected it to a small TV. The screen is total garbage, full of chracters from the game. The spider is there, parts of the centipede, I can see a couple of shooters...when the game is first started after been off for some time there's a lot of noise coming from the speaker that doesn't make any sense. then it quickly dies out.
I was lucky that the Atari engineers included a combined sync even though the G07 uses seperate H- and V-sync signals....made it easier to connect to the SCART on the TV.
The picture is weird though, black and white, seems inverted. Does Centipede use inverted singals like Donkey Kong ?
So it seems the board simply doesn't run. Any way to check clock signals coming from the crysta with a DMM ?
I cleaned all corroded pins on all IC's.(some seem totaly clean, others are corroded...strange). Also cleaned the PCB edge contacts. Removed all IC's that were socketed and put them back in.
Checked all the voltages (man, how many are there !) and all are present and OK.
Any help much appreceated !
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