Donkey Kong Forum
General Donkey Kong Discussion => General Donkey Kong Discussion => Topic started by: Bigcat76 on October 18, 2016, 02:58:03 pm
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Need help, I'm new, just got this original blue cab DK, I twicked the v-cent knob just a hair.. it went haywire, started scrolling, cannot get it back for the life of me .. I should have never touched it!!
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I'm sure this has been asked and asked, also should be an easy fix. How it you move the v cent a hair, one way move it back where it was and nothing?? Heeeeeeelp!
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sometimes those pots have a very small sweet spot - keep turning it back and forth VERY slowly until you get it aligned again. if turning the pot isn't doing anything at all, the pot needs to be replaced.
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Here's some good instructions on cleaning pots. That might be a good place to start, but if that doesn't work, then as aaron said, replacement is your only option.
http://electronics.stackexchange.com/questions/2535/how-to-clean-a-potentiometer (http://electronics.stackexchange.com/questions/2535/how-to-clean-a-potentiometer)
To clarify, did you adjust the pot on the game board? If not, exactly which one did you mess with (see the attached diagram, to identify which one it was)? I ask because if it is on the chassis, it would probably be a good idea to discharge the monitor before trying to clean the pot.
Lastly, if you have further questions on this topic, it might be better taken to a dedicated thread, as this thread you posted in is about PCB roms and game versions. Kappa
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Thanks so much for the info. It seems impossible, I won't get to it til fri, I messed with the one to the left, where I think 5 knobs are, the V-cent I believe, thanks again, it's probably dirty, it's all original. Thanks again,