- -
Fail to light up
Check LED
indication
OK
NG
OK
NG
OK
NG
OK
NG
OK
NG
Check
lamp life
Check POWER PCB
ASSY 380V output
Check lamp
power unit
Check MAIN
PCB ASSY
Refer to LED
indicator and follow
indicative actions
Replace lamp
Replace POWER
PCB ASSY
Replace lamp
power unit
Replace MAIN
PCB ASSY
NG
Check color wheel
rotation while
power on
Replace
color wheel unit
No Volume
OK
NG
NG
Check
speaker
Check MAIN
PCB ASSY
Replace speaker
Replace MAIN
PCB ASSY
Power source 2
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 ...