I'm using a Vision Pro MTG-1901CN monitor with an original cocktail version Ms. Pacman. The game displays properly but none of the colors are showing except blue. None of the color adjustments on the neck seems to make any difference. HELP!!!
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Someone had mentioned that there are chips on the board that control the colors, and they can go bad. Anyone have an idea of where these are?
how do i test these ? They are 3 legged right ?
Update:.... tested another chassis on this tube and the tube is ok. Check the transisistors on the neck baord and all have similiar readings and are not shorted. check resistors and all are in spec. hell i even moved this chassis to another tube and same blue. Looking at the diagram the video gets processed by a chip on the chassis. I got the # off of it ,
LM1205N. a quick google shows its a video chip. Any idea where to get one and has anyone had this issue. Chassis is super clean and from one of the last crts made and would like to save it if possible.