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Museum of the Game® & International Arcade Museum® Forums
I have a K4600 here, missing blue. I reflowed ALL connectors, adding fresh solder, removing and re-soldering to make sure it's all fresh, and hit any other questionable spots - though I didn't see and obvious bad joints. I replaced 401 on the neck board (The original tested ok), no luck there. I also replaced TR204-TR209 on the interface board. Still no luck, but I am able to see the squares from the TPG now.
I've got a little sync and fold over things to address as well, but that feels like an easier fix - I'm just trying to sort the Blue atm.
Is there a way to swap green or red with blue so I can see if the tube is capable of blue? It's my understanding that shuffling the yoke wires around isn't a good idea.