toei cm-a14hc monitor

foxyloxy

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This is the monitor on my phoenix cocktail.
I have replaced all the caps - with the exception of a weird one with 3 pins - the 3rd pin labelled NC - it is a 470mf, 160V.
The screen works and displays an image which is badly scewed.
I have tried the h.hold and v.hold controls and the image can be stabalised but is still badly scewed - any suggestions? thanks in advance.
 

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All the video connections show good continuity from the game board to the monitor chassis.

Found a star tech journal entry that suggested a faulty cap c55 (a polypropylene type) so I replaced that but still the same problem.

Anyone any more ideas?
 
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