VI
Assemble Back Cover Module 2-54
Assemble Zoom Ring and Focus Ring Module 2-55
Assemble Top Shielding Module 2-55
Assemble Wireless Module (only for P7270i/P7280 Refresh) 2-58
Assemble Lamp Module 2-60
Assemble Top Cover Module 2-61
Chapter 3 Troubleshooting
LED Lighting Message 3-1
Main Procedure 3-2
Beep Sound 3-3
Chapter 4 Function Test & Alignment Procedure
Test Equipment Needed 4-1
Service Mode 4-1
OSD Reset 4-1
Test Condition 4-2
Test Inspection Procedure 4-3
PC Mode 4-3
Defectspecicationtable 4-7
Video Performance 4-7
Optical Performance Measure 4-9
Other 4-10
WLAN and LAN Signal Test(only for P7270I/P7270i Refresh)
4-13