Zum Hauptinhalt wechseln

Repariere deine Sachen

Recht auf Reparatur

Store

Modell A1312 / Mitte 2011 / 2,7 & 3,1 GHz Core i5 oder 3,4 GHz Core i7 Prozessor, ID iMac12,2

683 Fragen Alle anzeigen

Left part of the screen becoming dark

Hello,

We own a 27" intel iMac (A1312 model) and since a few months now, the left part of the screen is turning to dark frequently.

This happens several times a day, without any evident cause related to its activity.

Its serial number ends with DHJP .

I just wonder if this might be related to a faulty LED Backlight Board or display cable ?

A picture of the screen can be seen here : http://www.bru.licr.org/~lejeune/images/...

I would appreciate any thought on the subject.

Jo Lejeune

Update (01/27/2016)

Thanks Dan and aebelcarris for your reply.

Now I've just to decide to replace either the backlight cable or the board, or both …

I'll keep you informed.

Regards,

Jo

Update (03/20/2016)

Replacing the LCD panel did the job.

Nor the backlight cable nor the board were involved in the troubles we had.

Of course replacing the LCD panel has a high price tag...

Jo

Beantwortet! Antwort anzeigen Ich habe das gleiche Problem

Ist dies eine gute Frage?

Bewertung 1

Kommentare:

Was the system ever serviced?

von

No. The system has never been serviced.

von

Einen Kommentar hinzufügen

3 Antworten

Gewählte Lösung

I would say the backlight cable maybe damaged here.

War diese Antwort hilfreich?

Bewertung 3
Einen Kommentar hinzufügen

What are the last four figures of your serial number (located on the bottom of your stand?

iMac (27-inch): AMD Radeon 6970M Video Card Replacement Program

Apple has determined that some AMD Radeon HD 6970M video cards used in 27-inch iMac computers with 3.1GHz quad-core Intel Core i5 or 3.4GHz quad-core Intel Core i7 processors may fail, causing the computer’s display to appear distorted, white or blue with vertical lines, or to turn black. iMac computers with affected video cards were sold between May 2011 and October 2012.

War diese Antwort hilfreich?

Bewertung 3

Kommentare:

Thanks for your reply, mayer.

The info was actually in my original post. The last four figures of the serial number are DHJP.

This means that this iMac is (unfortunately) not involved in the replacement program since its video card is a AMD Radeon HD 6770M.

The iMac has an Intel Core i5 running at 2.7 GHz.

Jo

von

Einen Kommentar hinzufügen

most likely it is a backlight issue. whoops i just saw that dan already answered it. well I concur with dan

War diese Antwort hilfreich?

Bewertung 2
Einen Kommentar hinzufügen

Antwort hinzufügen

Jo Lejeune wird auf ewig dankbar sein.
Statistik anzeigen:

Letzten 24 Stunden: 0

Letzten 7 Tage: 0

Letzten 30 Tage: 1

Insgesamt: 1,809