Acer P5270 - XGA DLP Projector - Page 72

4-6
P5270/P5270 Refresh
Condential
No Step Specication Procedure Photo
6 Screen
Uniformity
Should be
compliant with
75%.(Minimum)
- Test methord :
Plug in VGA cable and
use the Full White
Pattern and Full Black
Pattern of “Spoke test” in
service mode
- Please check and
ensure the unit is under
the spec.
- Please check and see if
it’s in normal condition.
- If not, please return the
unit to repair area.
Please check and see if
there are dead pixels on
DMD Chip.
- The total number and
distance of dead pixels
should be compliant with
the spec.
7 Light Leak The unit can’t
accept the leak-
age is brighter
than Gray 10
patterns
- Test Signal :
1024x768@60Hz
- Test Pattern : Gray 10
Patterns
- Please check and see if
the light leaks *Note
- The unit cannot accept
the leakage is brighter
than Gray 10 Patterns
Note:
Light leak on reective
edge, eyecatcher, bond
wires and exposed metal.