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Operation thunderbolt pcb

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Category: Technical
Forum Name: Tech, Maintenance & Repairs
Forum Description: Need Help? Ask Here
Printed Date: 29 Mar 2020 at 7:55pm

Topic: Operation thunderbolt pcb
Posted By: webster007
Subject: Operation thunderbolt pcb
Date Posted: 25 Mar 2020 at 10:48pm

For the corona shut down I have dug out my operation thunderbolt pcb to repair. When i first got it there was no sound. So I left it for a month, plugged it in again and it had a graphics problem. So it ended on the 'when I get the time' jobs.

Mission 1 - Repair graphics problem and restore hope

1 year later here I am.
Setup as follows

Graphic problem

I did some googling and someone had a similar problem and it was a broken/corroded address line track.
So I checked mine with an oscilloscope from source to eeprom and all looked good.
The question is what to check next?

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