Optoma EP780 Service Manual page 37

No Step
4 HDTV
5 Color
Performance
6 Screen Uni-
formity
Confidential
Specification
No discolor
No image
(discolor)
Should be
compliant with
60%.(Minimum)
Procedure
- Test Signal : 480P,
720P, 1080i
- Test Pattern : Master
- Equipment: Quantum
Data 802B or
CHROMA2327
*Please refer to page
4-1 to enter Service
Mode. Use 480P
signal, smtpebar pat-
tern to do video calibra-
tion; then, 4:3 screen
and 1080i signal. If
the test result was in
discoloration or flicker-
ing, please return the
unit back to the repair
center.
- Test Signal :
1024x768@60Hz
- Test Pattern : 64
RGBW Scale Pattern
& 32 Grays Pattern
- Please check and
ensure if each color is
normal and distin-
guishable.
- If not, please adjust
color index of the
Engineering Mode.
- Test Signal :
1024x768@60Hz
- Test Pattern : Full
White Pattern & Full
Black Pattern
- Please check and
ensure the unit is
under the spec.
- Please check and see
if it's in normal conid-
tion.
4-3
Photo
EP780