Strange Colored line on screen

Graphic based area of development (Graphics Processing Unit), including the Geometry Transform Engine (GTE), TIM, STR (MDEC), etc.
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vj88
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Curious PSXDEV User
Posts: 18
Joined: Mar 13, 2017

Strange Colored line on screen

Post by vj88 » December 17th, 2019, 10:19 pm

Then one day.....
Hi everyone, today my ps1 starts to show some strange lines on screen. I have tried the same cable and the same screen with other ps1 and they haven't the same problem.
This ps1 has PSIO munted but it has been almost a years with no issue.
Thanks.
ImageImage
Playstation: Net Yaroze DTL-H3000
(with AK4309AVM mod and DTL-H1100 external PSU)
Parallel I/O Port: PSIO
PSX BIOS: V2.2 NTSC-UC
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rama3
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Post by rama3 » December 18th, 2019, 4:59 am

Looks like a trace (connection between chips) or a VRAM chip is going bad.
It's very hard to repair, even with tools.
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