VOGONS


First post, by OldCat

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I have an option to buy Siemens-Nixdorf laptop for a reasonable price... but the screen is broken, displaying the same thing twice, as you can see below. What do you think might be the reason and how difficult it could be to repair?

Reply 1 of 7, by Jo22

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Hi, what happens if you do attach an external VGA monitor ? Same issue ?

"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel

//My video channel//

Reply 2 of 7, by vvbee

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The pcd-4nd has a very modular build anyway so pretty easy to work on.

Reply 3 of 7, by OldCat

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Hey, I've bitten the bait - bought the computer, will have it soon, then I will be able to continue this thread hands-on. Look forward to updates!

Reply 4 of 7, by OldCat

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Jo22 wrote:

Hi, what happens if you do attach an external VGA monitor ? Same issue ?

No, image is fine. See photo below.

both.jpg
vvbee wrote:

The pcd-4nd has a very modular build anyway so pretty easy to work on.

It indeed is - I already disassembled the thing, looked inside and whatnot. What worries me, though, is my DX4/100 processor is without any radiator! I mean this thing can get hot pretty quickly. Is that a normal thing?

Reply 5 of 7, by amadeus777999

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Maybe it's running at only 3.1V albeit I doubt that the chip doesn't get plenty hot. The processor may also be specified to be able to withstand higher temperatures(like AMD's "BHI" Am5x86s).

Reply 6 of 7, by Jo22

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OldCat wrote:
Jo22 wrote:

Hi, what happens if you do attach an external VGA monitor ? Same issue ?

No, image is fine. See photo below.

Ah, okey dokey. So the VGA is alright, that's good! 😀 I suspect that there's a bad connection on LCD panel then.
The original Gameboy had screen issues, which resulted in a "similar" effect (missing lines, dead spots, etc).
See https://youtu.be/l4PArFarm_k

"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel

//My video channel//

Reply 7 of 7, by OldCat

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Jo22 wrote:

Ah, okey dokey. So the VGA is alright, that's good! 😀 I suspect that there's a bad connection on LCD panel then.
The original Gameboy had screen issues, which resulted in a "similar" effect (missing lines, dead spots, etc).
See https://youtu.be/l4PArFarm_k

I dismantled the monitor, checked LCD (it's NEC) and connectors, but I am not good enough in electronics to fix if there are problems with LCD itself. Found another S-N laptop, bought it, will try to make a hybrid that works.