Mitsubishi Electric SD206U Service Manual page 5

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