7.

Disconnect DisplayPort cable

Yes

Replace DisplayPort cable

X03

 

between LCD display and logic

 

or any other damaged part/

 

 

board, and verify if there is

 

module.

 

 

damage to cable or connectors.

 

 

 

 

No

Reinstall DisplayPort cable

 

 

Repeat with vertical sync cable

 

 

connected between LCD panel

 

and vertical sync cable.

 

 

and LED backlight board.

 

Go to step 8.

 

 

 

 

 

 

8.

Verify if issue is still visible

Yes

If video corruption symptom

 

 

after reinstalling/replacing

 

appears to be like a rolling

 

 

DisplayPort cable and vertical

 

image (bad location of the

 

 

sync cable.

 

top of image), replace VSync

X03

 

 

 

cable and go to step 9.

 

 

 

 

 

 

 

Else replace DisplayPort cable

X03

 

 

 

and go to step 9

 

 

 

 

 

 

 

 

No

Issue resolved with reseating/

 

 

 

 

replacing damaged cable(s).

 

 

 

 

 

 

9.

Verify if issue is still visible after

Yes

Replace LCD panel.

L04

 

replacing DisplayPort cable or/

 

 

 

 

No

Issue resolved with replacing

 

 

and vertical sync cable.

 

 

 

the cable(s).

 

 

 

 

 

 

 

 

 

 

10.

Verify if issue is still present

Yes

Contact Apple Technical

 

 

with replacement LCD panel

 

Support.

 

 

installed.

 

 

 

 

No

Run Apple Service Display

L04

 

 

 

 

 

Utility Diagnostic and enter

 

 

 

 

the receipt code in the “Repair

 

 

 

 

Notes” section of GSX. Issue

 

 

 

 

resolved with replacement of

 

 

 

 

LCD panel.

 

 

 

 

 

 

2010-09-09

iMac (27-inch, Mid 2010) Symptom Charts — Startup and Power  50

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Image 50
Apple MD094LL/A Disconnect DisplayPort cable Yes Replace DisplayPort cable, Cable and go to step, Yes Replace LCD panel