Looking for some SE/30 repair direction

Hello,

I have a SE/30 that has recently developed a display problem. Before I go into full diagnostic and repair mode I thought I’d post a picture here and see if anyone can spot any obvious fault and fix. This logic board was recapped a few years ago and has been working just fine. When this fault propped up the first thing I did was replace the ram and romsimm but didn’t seem to help. As you can see the board boots up fully. Anyone got any ideas before I go any further?

Thanks in advance,
ManuelIMG_7139.jpeg
 
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