Patched my Portfolio's screen ribbon the hard way

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EkriirkE
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Patched my Portfolio's screen ribbon the hard way

Postby EkriirkE » Sat Jun 09, 2018 7:20 am

Picked up a Portfolio lot, and one of them jsut showed a "black" screen and no beep on initial reset
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So, following the rumours of the FFC cable breaking I began disassembly to get to the ribbon:

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Nothing apparent yet, let's get that tape off next...
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Aha! a hairline crack on the left, 6 traces broken. Rather than try and get the screen open to remove/replace the cable for now (the clear window hides some screws and I don't want to damage it) I decide to scrape some of the polyimide off to expose the copper of the ribbon wires

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And solder little jumpers across the gaps

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Partial reassembly to test...

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Yes, it works!

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And it beeps and clicks as well. This is only temporary, but it makes me happy for now :)

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Atarieterno
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Re: Patched my Portfolio's screen ribbon the hard way

Postby Atarieterno » Sat Jun 09, 2018 9:44 am

Good job. You have rescued another Atari from limbo.
I also have that little computer: do you think that with a healthy diet it will grow until it becomes STbook?

Mi Portfolio Atari.jpg
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ST/fm/e, STacy, Mega ST/e, TT, Falcon, C-Lab MKX... and more music tools.

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EkriirkE
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Re: Patched my Portfolio's screen ribbon the hard way

Postby EkriirkE » Sat Jun 09, 2018 9:51 am

Atarieterno wrote:Good job. You have rescued another Atari from limbo.
I also have that little computer: do you think that with a healthy diet it will grow until it becomes STbook?

Mi Portfolio Atari.jpg

Whoops! Wrong sub. Maybe if you feed it enough BeeCards

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Gaiyan
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Re: Patched my Portfolio's screen ribbon the hard way

Postby Gaiyan » Sat Jun 09, 2018 10:06 am

Wow. Soldering that is extremely difficult even if you manage to scrape the film without damaging the copper. I guess the copper was fairly thick? I could never be able to fix the Stacy keyboard ribbon.
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EkriirkE
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Re: Patched my Portfolio's screen ribbon the hard way

Postby EkriirkE » Sat Jun 09, 2018 2:31 pm

Gaiyan wrote:Wow. Soldering that is extremely difficult even if you manage to scrape the film without damaging the copper. I guess the copper was fairly thick? I could never be able to fix the Stacy keyboard ribbon.

've done similar on other ribbons, it's best with an xacto knife, and once you have some copper exposed you tin it with solder and leave the iron on which makes more of the tap easy to pull back. The copper was thick yes

What's the STacy ribbon look like?

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Re: Patched my Portfolio's screen ribbon the hard way

Postby Tarak » Sun Aug 26, 2018 8:05 pm

Hello, does anyone know where I can find the serial transfer program xload.com? Thank you have a nice day !


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