Inspection Procedure - Acer PD311 Service Manual

Inspection Procedure

No Step
1 Reset
2 Frequency
and Track-
ing
3 Boundary
4 Focus
5 HDTV
6 Color Per-
formance
Chapter 4
Specification
Before QC Step, please do OSD reset to erase all saved change again and
restore the factory defaults.
Eliminate visual
wavy noise by
Rsync, Frequency
or Tracking sele-
tion.
Horz. And Vert.
position of video
should be adjust-
able to be the
screen frame.
The text in the
corner should be
clear after adjust
the focus ring.
No discolor
No image
(discolor)
Procedure
- Test Signal :
800x600@75Hz (PD311)
1024x768@60Hz (PD323)
- Test Pattern : PANA-ICON
- check and see if image sharpness
and focus are well-performed.
- No video noise is allowed.
- Test Signal :
800x600@75Hz (PD311)
1024x768@60Hz (PD323)
- Test Pattern : General 1
- Adjust Resync or Frequency /
Tracking / H. Position / V. Posi-
tion to the inner of the screen.
- Test Signal :
800x600@60Hz (PD311)
1024x768@60Hz (PD323)
- Test Pattern : Full Screen
- Adjust the center clearly;
meanwhile, one slightly vague
corner in the image is allowed.
- Test Signal : 480P, 1080i
- Test Pattern : Master
- Equipment: Quantum Data 802B
or CHROMA2327
*Please refer to page 46 to enter Ser-
vice Mode. Use 480P signal, smtpe
bar pattern to do video calibration;
then, 4:3 screen and 1080i signal. If
the test result was in discoloration or
flickering, please return the unit back
to the repair area. (by Model)
- Test Signal :
800x600 @60Hz (PD311)
1024x768@60Hz (PD323)
- Test Pattern : 64 RGBW Scale Pat-
tern & 32 Grays Pattern
- Please check and ensure if each
color is normal and distinguishable.
- If not, please adjust color index of the
Engineering Mode.
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