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I picked up a Donkey Kong machine in pretty good shape. The game played and there was audio, but the Sanyo 20EZV monitor could not be adjusted to something reasonable. The colors looked good, but the picture was constantly spiraling and there was no way to make it sit still.

So, I got a cap kit for it that included the audio board and recapped both the CRT and the audio board. The kit came with transistors for the audio board, but I did not replace those because the audio board was working fine before I didn't have any thermal paste on hand for the new transistors.

After the recap, I hooked the CRT up to a CraftyMech TPG and it looked way better and the spiraling motion had stopped, but the colors were inverted. I figured the inverted colors was just a signal mismatch between the CRT and the TPG and I decided to go ahead and put it back in the cab for an official full test.

However, when I powered the cab on, instead of the usual boot sound, a cap on the game PCB popped with a flash and started sizzling and smoking, so I killed the power.

Has anyone experienced anything like this before?
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