- -
Computer
No Signal
Check
source
OK
NG
OK
NG
OK
NG
NG
Check
cable
Check monitor
out signal
Check
optical unit
Turn on
source
Replace cable
Replace MAIN
PCB ASSY
Replace
each optical parts
Video
No Signal
Check
source
OK
NG
OK
NG
NG
Check
cable
Check
optical unit
Turn on
source
Replace cable
Replace
each optical parts
Video signal 1
Summary of Contents for XD221U
Page 7: ... 1 2 5 6 OPTICAL UNIT 8 11 14 9 7 10 3 4 12 13 EXPOSED VIEW Fig 1 1 DLP ASSY ...
Page 9: ... Optical unit 2 1 3 4 5 6 7 8 Fig 1 2 ...
Page 11: ... DISASSEMBLY 1 Unscrew the 8 screws a from the bottom cover a a ...
Page 20: ... 17 17 Remove adjuster from the bottom cover Bottom cover Adjuster ...