ViewSonic PJ755D Service Manual - Page 26

Function Test and Alignment Procedure

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Chapter 4 Function Test and Alignment Procedure 4-1 Product - PJ755D 4-2 Test Equipment - IBMPCwithXGAresolution(ColorVideoSignal&PatternGenerator) - DVDplayerwithcomponentvideo(Y,Pb,Pr)andMulti-system(NTSC/PAL/SECAM) - HDTVTunerorSource(480i/p,576i/p,720p,1080i) - CHROMA2327 4-3 Test Condition - CircumstanceBrightness 1.) Darkroomlessthan10luxforfunctionalinspection. 2.) Circumstancebrightnessoverthan500luxforexternalinspection. - InspectionDistance 1.) About1.5~3mforfunctionalinspection(Theprosectiondistancehastobaseonthe screen size till 60 inches) 2.) 30cmforexternalinspection. - ScreenSize:60inchesdiagonal(wide) - Shouldberun-infor2hoursafterrepair. 1.) Inroomtemperature 2.) Withcycleddisplaycolors(R,G,B,White)*Note1 - Run-in Time: (CT-FL-03002) After changing all materials: 1.For DC-DC and Ballast, it will run-in 2 hours. 2.For DMD BD, Main BD,Thermal BD and Engine,it will run-in 4 hours. 3.No Fault Fault (NFF): it will run-in 4 hours. 4.Auto Shutdown: it will run-in 6 hours. *Note1: Please enter “Engineer Mode” to select run-in function. Notice: The procedure for entering Engineer Mode: Press power “Up”, “Down”, “Right” button. ViewSonic Corporation 4-1 PJ755D

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PJ755D
4-1
ViewSonic
Corporation
4-1
Product
-
PJ755D
4-3
Test Condition
Chapter 4
Function Test and Alignment
Procedure
-
IBM PC with XGA resolution (Color Video Signal & Pattern Generator)
-
DVD player with component video (Y, Pb, Pr) and Multi-system (NTSC/PAL/SECAM)
-
HDTV Tuner or Source (480i/p,576i/p,720p,1080i)
-
CHROMA 2327
-
Circumstance
Brightness
1.)
Dark room less than 10 lux for functional inspection.
2.)
Circumstancebrightnessoverthan500luxforexternalinspection.
-
Inspection
Distance
1.)
About 1.5~3m for functional inspection (The prosection distance has to base on the
screensizetill60inches)
2.)
30cmforexternalinspection.
-
ScreenSize:60inchesdiagonal(wide)
-
Should be run-in for 2 hours after repair.
1.)
Inroomtemperature
2.)
With cycled display colors (R,G,B,White) *Note 1
-
Run-in Time: (CT-FL-03002)
After changing all materials:
1.For DC-DC and Ballast, it will run-in 2 hours.
2.For DMD BD, Main BD,Thermal BD and Engine,it will run-in 4 hours.
3.No Fault Fault (NFF): it will run-in 4 hours.
4.Auto Shutdown: it will run-in 6 hours.
*Note1: Please enter ±Engineer Mode² to select run-in function.
Notice: The procedure for entering
Engineer Mode: Press power ±Up², ±Down², ±Right² button.
4-2
Test Equipment