 Apple Technician Guide MacBook Pro (15-inch, Mid ... - tim.id.au

2010-08-05
Deep Dive: Distorted/Blurred Image
Check Result Action Code
1. Sample image illustrates loss of
LVDS data signals to LCD or a
defective LCD panel, Inspect &
reseat LVDS cable connection
looking for damaged or bent
pins. Verify if image is restored
with the reseated cable
connection.
2. Substitute a known good
display clamshell to test logic
board internal video output.
Verify if normal video is
restored.
Deep Dive: Pixel Anomalies
Yes Issue due to loose connection.
Display issue resolved.
No Go to step 2.
If logic board connector is
damaged, replace logic board.
Yes Replace user’s display
assembly.
M24
L04
No Replace logic board. M04
Check Result Action Code
1. Determine if “defects” are dust/
debris on surface of glass panel.
2. Determine if bright pixel
defects exceed the acceptable
number. See
Display Issue: Pixel Anomalies.
3. Determine if dark pixel defects
exceed the acceptable number.
See
Display Issue: Pixel Anomalies.
4. Determine if the combination
of bright/dark pixel defects
exceed the acceptable number.
See
Display Issue: Pixel Anomalies.
Yes Clean glass panel.
No Go to step 2.
Yes Replace display assembly. L08
No LCD meets bright pixel defect
specifications. Go to step 3.
Yes Replace display assembly. L08
No LCD meets dark pixel defect
specifications. Go to step 4.
Yes Replace display assembly. L08
No Explain to user that LCD is
within specifications. Do not
replace display assembly.
MacBook Pro (15-inch, Mid 2010) Symptom Charts — Display 66