Acer P1166 Series, Service Manual

Page: 77 / 126

Confidential
4-11 P1166 / P1266 / P1266i / P1166P / P1266P
Note: P5=center of white image
B5=center of black image.
Criteria �� 1400: 1 (for P1166 / P1266) �� 1400: 1 (for P1166 / P1266) 1400: 1 (for P1166 / P1266) (for P1166 / P1266)
1900: 1 (for P1266i / P1166P / P1266P)
4. Uniformity
Procedure - Full white pattern
- Use CL100 to measure brightness values of P1~P9
(see image: full white).
- Follow the Uniformity formula to calculate
average values.
☼ Uniformity Formula
ANSI Uniformity = Avg. (P1, P3, P7, P9) / P5 x 100� P5 x 100�
Criteria �� 65�
4-11 Others
1. Functional Inspection
Keypad button - All keypad buttons must operate smoothly.
General - All OSD functions must be checked for functionality.
When OSD menu is displayed, there shall be no vis -
ible peaking, ringing, streaking, or smearing artifacts
on the screen.
Factory Default - The factory settings (with appropriate centring, size,
geometry distortion, etc.) shall be displayed upon
“Recall” is selected from OSD.
Display Size - All preset modes shall expand to full screen size us -
ing OSD
Horizontal and Vertical Size controls
Display Data Channel - The purpose of the DDC test is to verify the DDC1/
(DDC)
DDC2B operation of the projector and to verify Plug
& Play function.
Full black pattern