Trouble Shooting Flow Chart - ViewSonic VE700-1 Service Manual

Does
picture
YES
display
NO
ON
Back-light
On or off?
OFF
Check
power
LED
ORANGE
Check display
resoluton
Check I/F board
OSD no response
Too dim
The brightness is
different between upper
and lower side of panel
Partical picture without
color
Vertical,Horizontal
Out of sync
One or more colored
vertical lines
Even(or odd) vertical
line is dark
ViewSonic Corporation

TROUBLE SHOOTING FLOW CHART

7.
A dark picture
or a picture
full of
colored
vertical lines
GREEN
Check inverter
Check I/F board
JP1
Check SW board S1~S4
Check OSD adjustment
Check inverter
Check backlight
RGB signal
error
H,V sync
error
Hsync,Vsync
Or DE error
Check LED cable
Check I/F board JP4
Check LED panel J1
Check connector board
Check I/F board
Check LCD panel
Check LCD panel
14
Confidential – Do Not Copy
Check I/F board
Check SW board J1
Check inverter
Check I/F board
VE 00-1
VA720-2