Over a year ago now a friend of mine obtained a Gauntlet Legends for $300, including a new power supply that the tech selling the machine said would probably be needed. Needed it was, the PSU was swapped, and all was well for some time. After a fashion though, the game would lose blue and display everything only with red and green. Sometimes the blue would come back, other times it wouldn't. This all happened after said friend moved to Texas, so I wasn't able to look at it and inspect it myself until i came out a little over a year later. I took some pictures which I will link shortly, but I am near 100% certain that just as happened in this thread: http://forums.arcade-museum.com/showthread.php?t=121916 the color transistors overheated badly and have caused the contacts to not be made. While I was working on the machine, green started to have problems as well. The design of the neckboard does not seem to lend itself to simple replacement, as the plastic piece that connects to the pins of the tube neck is soldered to the PCB. The transistors have overheated so badly that the PCB in that area is nicely browned, and the traces are lifted. Seems like a really crappy design choice to me, cheap clip on heatsinks and nothing to move air around in that area to keep things cool. In any case, I will now link the pictures I have, and hopefully you folks will have answers that I couldn't find anywhere else on the internet. My apologies, they were taken with my cell phone, and despite it being a 3MP job, it is still a cell phone camera.
The identifying part of the board:

A shot of the neck connector that (afaik) makes swapping this board impossible:

The toasty side of the PCB (from right to left, blue, green, and red):

Shot of the buggers that did the toasting:

Now I have looked up parts and referenced the transistors in case they needed replacing, but as far as I could tell from working on the machine, they do function, they've just wrecked those traces and their contacts. If it is deemed feasible, what I'd like to do is maybe mount the transistors on the toasty side of the PCB, connected at points where the traces are not lifted yet, and then maybe attach better heatsinks and/or set up an 80mm fan to blow on them constantly to help clear heat from the area and stop any further damage from occurring. This is my friends favorite game, and she'd rather have it in her condo instead of sitting in storage if possible, I'd like to be able to make that happen for her if I can.
Thanks in advance.
The identifying part of the board:

A shot of the neck connector that (afaik) makes swapping this board impossible:

The toasty side of the PCB (from right to left, blue, green, and red):

Shot of the buggers that did the toasting:

Now I have looked up parts and referenced the transistors in case they needed replacing, but as far as I could tell from working on the machine, they do function, they've just wrecked those traces and their contacts. If it is deemed feasible, what I'd like to do is maybe mount the transistors on the toasty side of the PCB, connected at points where the traces are not lifted yet, and then maybe attach better heatsinks and/or set up an 80mm fan to blow on them constantly to help clear heat from the area and stop any further damage from occurring. This is my friends favorite game, and she'd rather have it in her condo instead of sitting in storage if possible, I'd like to be able to make that happen for her if I can.
Thanks in advance.
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