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I powered up my Gyruss the other day and the monitor isn't right... the black background is yellow. The "GYRUSS" text isn't visible, and the "Please deposit coin..." is replaced by a green bar. :oops2: Among other weirdness. The game plays normally except for the bright yellow background.

First thing was to determine if it's the monitor or the board itself... I hooked up the 5" Samsung color monitor on my test rig to the game video output, and it looks perfectly normal. That was a relief.

But now I have to fix the have already ordered a recap kit since I don't think it's ever been done. What can cause yellow instead of black?K4951. I have already ordered a recap kit since I don't think it's ever been done. What can cause the black areas to appear yellow instead?? I have plenty of experience with electronics, especially digital and microprocessor, but haven't been inside very many CRT monitors... Thanks for any tips.
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