Author Topic: Goldstar crt TV 25" installed in a arcade cabinet - weird picture  (Read 4355 times)

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repetto74

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Hi Guys,

I am desperate to obtain a decent picture with the 15khz CRT TV I have installed in my cab (my previous arcade electronics has gone bad and the flyback is no more available). It is a Goldstar CBT-2570X 25" TV with scart inputs so I purchased a quality VGA RGB to scart cable with +12v and +5v molex connector for the A/V commutation and RGB switch.

Unfortunately I cannot get past this video quality where the image looks dim and some weird horizontal lighter coloured bars appears where text is displayed. :73:

What I am sure of is that the cable is not the cause. I have tried to connect a DVD player with a standard scart cable and I do have the same issue when displaying the DVD menu. What this can be? There are a lot of pots on the TV chassis I can adjust and also the focus and brightness on the flyback. Is that a problem with the sync?  :dubbio: Where can I tweak before thinking this is a video circuit fault? Enclosed also the block diagram of this electronic. (chassis PC-12A)

https://ibb.co/JyYSZSP
https://ibb.co/r3DJB19
https://ibb.co/vvDSK75
https://ibb.co/zQ1hm61
https://ibb.co/GVfnfPf
« Last Edit: May 09, 2019,09:56:49 by repetto74 »

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