Arcade Collecting > Restorations & repair
Centipede Restoration - It's Alive!!!
tafische:
Sure 42 - here are a few pics from this weekend --
OH - BTW - thanks for all the great tips on your restore project. I had a bad LED on one of my start switches. Did your little mod and I now have two blinking lights.
Yuck! That is nasty in there. Looks like it may have had a coke spilled in it at some time - note the old quarter marks on the bottom.
A clean Centipede is a happy Centipede.
Here is an image of the output from the rectifier. Odd the one side is not going down to 0, but that is ok since we smooth those out anyway. Might replace sometime in the future.
Beautiful - a nice +5. The TTL circuits are bathing in happiness. I intentionally left it a little low (4.9v) until I see how the sense circuit reacts over time. I hate to jumper it.
All this and my son and I still had time to catch this yesterday ---
Level42:
Hey thanks, great to actually see why we replace caps on Atari Power Bricks and AR-II's :) Always nice to see some proof of what we all assume :D
Good work on the LED's. They don't often go bad :) Nice to know someone else benefits from documenting stuff like that.
Nice catch :)
Lutus:
I usually go ahead and do the sense mod on all my ARII boards (have 2 of them, dig dug and missile command)
Nice fish! Mmmmmm, I love fish.
Level42:
O no.....I feel a big sense-mod discussion coming up................KLOV forum is full of it :
The sense mod is like putting a bigger fuse in a circuit because it's blowing all the time. Does it stop blowing ? Probably. Did it fix the problem ? NO !!
There is no need for the sense mod if your board connections are OK. THAT is what should be checked and maintained.
SirPeale:
--- Quote from: Level42 on July 14, 2008, 09:07:44 am ---O no.....I feel a big sense-mod discussion coming up................KLOV forum is full of it :
The sense mod is like putting a bigger fuse in a circuit because it's blowing all the time. Does it stop blowing ? Probably. Did it fix the problem ? NO !!
There is no need for the sense mod if your board connections are OK. THAT is what should be checked and maintained.
--- End quote ---
Agreed. When I picked up my Centipede R27 blew right away. I capped the board, replaced R27, and cleaned the heck out of the board edge and connector. Presto! No more problem.
Now I just have to fix the board. It either needs new ROM sockets, new ROMs, or both.
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