Monochrome Monitor Repair \ VOGONS

Monochrome Monitor Repair

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First post, by SquallStrife

Posted on 2013-01-01, 08:03

SquallStrife Offline

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This will be in the next Retro Swim (which will be about my IBM PC) but here's a sneak peek!

I got this monochrome monitor off DonutKing. He said it had white phosphors, but he hadn't used it, so he couldn't say whether it was working or not.

Here's the beastie:

So I hooked it up to the IBM PC. Power LED came on, and I could hear the HT working, but when it warmed up it looked like this:

I opened it up to look for any obviously bad components, failing to notice any, I took the PCB all the way out to get a closer look and noticed a huge crack in the PCB:

I used some wire from an ethernet cable to join up all the traces that lead over the crack.

And now it works a treat!

😁

VogonsDrivers.com | Link | News Thread

Reply 1 of 8, by Qbix

Posted on 2013-01-01, 12:22

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Nice! Good work !

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Reply 2 of 8, by Stojke

Posted on 2013-01-01, 13:14

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Awesome fix, great job 😀
The color is really cool.

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Reply 3 of 8, by feipoa

Posted on 2013-01-01, 14:07

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I love it when hardware failures end up being as simple as a cracked PCB, that is, provided the affected area is only 2 layer.

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Reply 4 of 8, by Tetrium

Posted on 2013-01-01, 15:15

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Well done! 😀

When I saw the crack in the PCB I thought it was hopeless for sure!

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Reply 5 of 8, by h-a-l-9000

Posted on 2013-01-01, 15:58

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This is hazardous fix. You ignored the isolation area between the primary and secondary sides. Place the wires in a way that they don't cross that area.

1+1=10

Reply 6 of 8, by Harekiet

Posted on 2013-01-01, 16:13

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That just gives it the modern chinese quality factor with tiny creepage distance 😀

Reply 7 of 8, by SquallStrife

Posted on 2013-01-01, 22:45

SquallStrife Offline

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feipoa wrote:
I love it when hardware failures end up being as simple as a cracked PCB, that is, provided the affected area is only 2 layer.

One layer! 😉

Component side has no tracks.

h-a-l-9000 wrote:
This is hazardous fix. You ignored the isolation area between the primary and secondary sides. Place the wires in a way that they don't cross that area.

Yep.

The pic doesn't show it, but I moved it all down below that barrier and hotglued the wires in place before I put it back together. 😀

VogonsDrivers.com | Link | News Thread

Reply 8 of 8, by RogueTrip2012

Posted on 2013-02-21, 04:24

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Good work. Did you put any non-conductive epoxy on the board to stiffin it up to help when turning the knobby thingys 😉

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