How to repair vertical lines on screen?

Question

iMac Intel 27インチ EMC 2309/2374

iMac Intel 27インチ EMC 2309 (Late 2009, Core 2 Duo 3.06もしくは3.33 GHz) ID iMac10,1, EMC 2374 (Late 2009, Core i5 2.66 GHzもしくは Core i7 2.8 GHz) ID iMac11,1

467回答すべてを表示

James Carr @jamescarr50331

評価: 11

投稿日: 2022年7月18日

オプション

How to repair vertical lines on screen?

I bought an old Mac online. The ad stated that is was functional with no HD, but when installed an SSD, I noticed tiny vertical lines.

I’ve read about baking a specific chip inside the computer to help resolve this. That seems kinda extreme and I don’t think I’m up to diving that deeply into the mechanics of this old computer.

Any help would be greatly appreciated.

Thanks

回答がありました！ 回答を表示同じ問題があります

この質問は役に立ちましたか？

はいいいえ

スコア 0

3 件のコメント

You posted a screen shot from within the system which only captures the digital image not the physical image so it looks just fine here!

You need to use a camera to physically take a picture of the screen emulating what you see with your eyes. Also make sure its at the largest resolution and you don't compress the image either.

Dan さんによる2022年7月18日

@danj The image James posted is a photograph of the screen, not a screenshot. I can see the thin vertical lines James describes, especially when you enlarge the image to full size.

They're most evident at the bottom of the screen near the shut down and sleep icons.

Jerry Wheeler さんによる2022年7月18日

@dadibrokeit - You either have better eye's or the image I'm looking at is not what you are seeing.

So from your description small lines would be a noise issue which would need looking at the logic boards noise suppression capacitors.

Dan さんによる2022年7月18日

コメントを追加

1 件の回答

ベストアンサー

Dan @danj

評価: 482千

Self employed contract worker

35

332

971

投稿日: 2022年7月18日

オプション

Without seeing a good image of your problem its hard to tell you what the source of the problem is:

Thick Black lines is a sign of a damaged LCD panel not the GPU.
Thin moving lines is often video signal noise which can be a damaged LVDS cable or the connectors on the logic boards the cable spans.
Chroma shift is often a bad T-CON board in these older systems.
Loss of video image can be a damaged display or GPU logic.

このアンサーは役に立ちましたか？

はいいいえ

スコア 0

コメントを追加

You posted a screen shot from within the system which only captures the digital image not the physical image so it looks just fine here!

You need to use a camera to physically take a picture of the screen emulating what you see with your eyes. Also make sure its at the largest resolution and you don't compress the image either. — Dan
@danj The image James posted is a photograph of the screen, not a screenshot. I can see the thin vertical lines James describes, especially when you enlarge the image to full size.

They're most evident at the bottom of the screen near the shut down and sleep icons. — Jerry Wheeler
@dadibrokeit - You either have better eye's or the image I'm looking at is not what you are seeing.

So from your description small lines would be a noise issue which would need looking at the logic boards noise suppression capacitors. — Dan

iMac Intel 27インチ EMC 2309/2374

How to repair vertical lines on screen?

1 件の回答

回答を追加する