iMac (21.5-inch, Late 2009) Symptom Charts — Display 50
2010-11-18
6. Inspect glass panel. Verify if
issue is caused by condensation
or contaminants on inside
surface of glass panel.
Yes Clean glass and/or LCD using
procedures in Glass Panel
take-apart chapter.
Identify possible sources
of contamination (nearby
cigarette/cooking smoke,
heavy airborne dust, etc.)
to prevent recurrence.
Condensation should
dissipate after computer has
been running a few hours.
No Go to step 7.
7. Remove LVDS cable between
LCD panel and logic board,
and verify if there is damage to
cable or connectors.
Yes Replace LVDS cable. X03
No Reinstall LVDS cable.
Go to step 8.
8. Verify if issue is still visible after
reinstalling LVDS cable.
Yes Replace LCD panel.
Go to step 9.
L04
No Issue resolved.
9. Verify if issue is still present
with replacement LCD panel
installed.
Yes Return to step 1 and retest.
No Issue resolved.