Service manual

Check power region Check led color
Press menu Key if
osd display
DVI D SUB YPbPr
Check I/O cable is ok
Check I/O signal is in pwr
saying mode?
Refer to No Power
trouble shoot flow
chart
Press Power Key on/
off is ok?
Check X103 crystal 24MHZ if
working?
Check I103 if RST pin81 have reset pulse
Check I113 reset
Change I113
Check keypad pcb is
ok?
Check Reset circuit
Check if inverter is ok
Change Inverter
I113 set reset pusle?
Check I100 crystal 14.318MHZ if working?
Change I103
Check P116 data bus have signal
Check panel power 5v
Change LCD panel
dark
Amber
yes
Amber&Green
Green
yes
n
y
n
y
n
nn
yes
y
n
y
y
n
yes
y
y
38
ViewSonic Corporation Confidential
-
Do Not Copy N3250w-G