Ikegami TM20-20RH: Streaking issue on two monitors

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callanbrown
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Joined: Wed Feb 17, 2021 10:13 pm

Ikegami TM20-20RH: Streaking issue on two monitors

Post by callanbrown »

Hello all,

First post here, read lots though. I have a pair of TM20-20RH monitors. Both are great, but both show this same issue (although different intensities). Any time there's a big jump in color (ie black to red), the red streaks out to the right. Blue does it a bit too, and green is perfect, no streaking at all.

I have attached pictures of the sharpness test from 240p test suite (Genesis on MiSTer, direct 240p through a VGA converter), which shows the problem well. I'm guessing I should go for a cap kit, maybe neckboard transistors?

I can't seem to find any service manuals for the TM20 series, anyone have one?

I'm also trying to find something else RGB that I can test to rule out the MiSTer and especially the HDMI->VGA converter.

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