iMac (27-inch, Mid 2010) Symptom Charts — Startup and Power 50
2010-09-09
7. Disconnect DisplayPort cable
between LCD display and logic
board, and verify if there is
damage to cable or connectors.
Repeat with vertical sync cable
connected between LCD panel
and LED backlight board.
Yes Replace DisplayPort cable
or any other damaged part/
module.
X03
No Reinstall DisplayPort cable
and vertical sync cable.
Go to step 8.
8. Verify if issue is still visible
after reinstalling/replacing
DisplayPort cable and vertical
sync cable.
Yes If video corruption symptom
appears to be like a rolling
image (bad location of the
top of image), replace VSync
cable and go to step 9.
Else replace DisplayPort cable
and go to step 9
X03
X03
No Issue resolved with reseating/
replacing damaged cable(s).
9. Verify if issue is still visible after
replacing DisplayPort cable or/
and vertical sync cable.
Yes Replace LCD panel. L04
No Issue resolved with replacing
the cable(s).
10. Verify if issue is still present
with replacement LCD panel
installed.
Yes Contact Apple Technical
Support.
No Run Apple Service Display
Utility Diagnostic and enter
the receipt code in the “Repair
Notes” section of GSX. Issue
resolved with replacement of
LCD panel.
L04