Member Avatar for caperjack

IBM thinkpad ,vertial lines on the top half of the screen ,they show as yellow,blue and pink on a light background ,1 solid blackline on the blue desktop about 1/4 in apart. hooked to my monitor via a KVM switch they are not there so its in the laptops screen ,is it fixiable !!

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  • Latest Post Latest Post by TallCool1

Dani AI

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Quick summary and likely cause: because an external monitor attached through the KVM shows a clean picture, the problem is almost certainly in the laptop display assembly or its connection to the motherboard, not the video card. Colored vertical bands confined to part of the screen and a steady single black column point to either the LCD module itself (driver electronics or physical damage) or the thin video ribbon/connector that runs through the hinge.

Useful quick tests (no tools needed): with the machine powered on, slowly open and close the lid and watch the stripes. While it is on, press gently along the top bezel and around the hinge and watch for any change. If the lines shift, flicker, or disappear when you move the lid or press the bezel, the flex cable/connector is the likely culprit. If the lines stay exactly the same no matter what you do, the LCD panel or its on-glass driver chips are probably failing. This expands on and s points and narrows down which part to target.

Repair options and safety notes: reseating or replacing the video ribbon is the cheapest and most common fix, but it requires partial disassembly. Always remove AC and battery first. Older ThinkPads often use CCFL backlights and an inverter; those carry high voltage, so avoid touching inverter boards or lamps. If the panel electronics are damaged, replacing the whole LCD module is the usual remedy; for very old, low-value machines the cost of a panel may exceed the laptop’s worth, in which case using an external monitor is a practical alternative.

Short practical checklist:

  1. Confirm external output (done).
  2. Do the lid-flex / press test to distinguish cable vs panel.
  3. With power removed, remove the bezel and visually inspect/reseat the panel cable if comfortable following the factory service manual.
  4. If reseating does not help, replace the LCD module.

Service manuals for the exact ThinkPad model give screw locations and correct part numbers for replacement parts.

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Member Avatar for Zachery

Sounds like a bad monitor.
Or at least some bad pins.

Member Avatar for caperjack

its older ,i think a pen 200 / 40 megs ram .

At least some bad pins,

just what do you mean by pins and are they fixable ,.Im not use to laptops ,I pulled apart a few big monitors and lots of computers but not laptops .

Member Avatar for TallCool1

IBM thinkpad ,vertial lines on the top half of the screen ,they show as yellow,blue and pink on a light background ,1 solid blackline on the blue desktop about 1/4 in apart. hooked to my monitor via a KVM switch they are not there so its in the laptops screen ,is it fixiable !!

It might be a ribbon-cable problem. The cable might be loose, but it's not likely. An LCD screen is divided into two parts, upper and lower--if something is affecting only one half, the problem could be either electronic or mechanical. Look over some of my other replies in reference to LCDs in this forum for clues. I was going to quote myself, but it's all here in the other messages...

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