Acer P3250 Refresh, Service Manual, Page: 66 / 140

P3150/P3250/P3150 Refresh/P3250 Refresh
Confidential
4-4
4-5 Test Inspection Procedure
Change parts/
Update
M/B FW
Color
Wheel
Lamp
Module
Engine EDID
Lamp
Driver
Version Update v v v
Color Wheel Index v v
Reset lamp hour v
OSD Reset v v
EDID v
Re-write Lamp
Hour Usage
v
Check ROD
Position and
Adjust
v
Reset Dafult
Language ( for
refresh models)
v v v
Waveform
Download ( for
refresh models)
v v v
4-6 PC MODE
NOTE:Test Signal:analog 800x600@60Hz(P3150/P3150 refresh), analog 1024x768@60Hz(P3250/
P3250 refresh).Take P3250 for example.
1. Frequency and tracking boundry
Procedure - Test equipment: video generator.
- Test signal: analog 1024 x 768@60Hz - Test Pat
Partern: general-1 or master
- Check and see if the image sharpness is well-performed.
- If not re-adjust by the following steps:
(1) Select "Frequency" to adjust pixel number of pixel
clock in one line period.
(2) Select "Tracking" and use right or left arrow key to adjust
value to minimize video flicker.
General-1
Master