This is neogeo cabinet. Chassis is P538. After cleaning the board and replacing all caps (including c51), the monitor was running well for few days. Then, all of sudden, it faded out. Slowly, like filament lost voltage. The picture was perfect, just fading out. After confirming that flyback got filament winding open, i've replaced the flyback. After replacing flyback i was greeted with vertical issue -- there is a ghost double of the image vertically shifted -- see video http://www.youtube.com/watch?v=A6qovxY7jM0 vhold trim doesn't do anything, 50/60 trim just moves image slightly up and down. vsize creates crazy vertical linearity issue...
I've checked trims with multimeter and they have proper impedance. no cracks or anything. Replacing ic2 and ic3 didn't helped either. All diodes and transistors are fine. All voltages seems normal, except when i'm looking with scope at pin2 of ic3, i see that second ghost sync pulse...
Any ideas anyone?
Thanks.
I've checked trims with multimeter and they have proper impedance. no cracks or anything. Replacing ic2 and ic3 didn't helped either. All diodes and transistors are fine. All voltages seems normal, except when i'm looking with scope at pin2 of ic3, i see that second ghost sync pulse...
Any ideas anyone?
Thanks.
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