- -
No Power Source
after turning on
Check AC socket
and connector
OK
NG
OK
NG
OK
NG
OK
NG
OK
NG
Check Fuse
Check LED and
remote control
Check
5V standby
output
heck MAIN
PCB ASSY and AC
power cable
Replace AC
socket
Replace Fuse
Replace keypad
and remote control
Replace POWER
PCB ASSY
Replace
power cable
Replace
MAIN
PCB ASSY
Fan failure after
turning on
Check fan
connection
OK
NG
OK
NG
NG
Check fan
Check MAIN
PCB ASSY
Reconnect fan
Replace fan
Replace MAIN
PCB ASSY
TROUBLESHOOTING
Power source 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 ...