4-2
EP750
Confidential
4-4 Inspection Procedure
4-3 Test Condition
- Circumstance Brightness : Dark room less than 2.5 lux.
- Inspection Distance : 1.5m~3m for functional inspection
- Screen Size : 60 inches diagonal (wide)
- After repairing each HD72, the unit should be burn-in (Refer to the table below).
Symptom
Burn-in Time
Normal Repair
2 Hours
NFF
4 Hours
Auto Shutdown
6 Hours
No
Step
Specification
Procedure
Photo
Frequency
and Track
-
ing
Eliminate visual
wavy noise by
Rsync, Frequen
-
cy or Tracking
selection.
- Test Signal :
1024x768@60Hz
- Test Pattern :PANA-ICON
- check and see if image
sharpness and focus
are well-performed.
- No video noise is al-
lowed.
2
Boundary
Horz. And Vert.
position of
video should be
adjustable to
be the screen
frame.
- Test Signal :
1024x768@60Hz
- Test Pattern : General 1
- Adjust Resync or
Frequency / Tracking /
H. Position / V. Position
to the inner of the screen.
3
Focus
The text in the
corner should be
clear after adjust
the focus ring.
- Test Signal :
1024x768@60Hz
- Test Pattern : Full Screen
- Adjust the center clearly;
meanwhile, one slightly
vague corner in the im
age is allowed.
