Planar LT1201 CRT Television User Manual


 
LT1201 User Manual (020-1080-00 Rev. A) 14
8.TroubleShooting
Does
picture
display?
Back-light
On or off?
NO
YES
On
Off
Green
Check
display
resolution
Check I/F board
Check inverter
Check I/F board J5
A dark
picture or a
picture full
of colorfully
vertical lines
Check I/F board CN5
Check panel connector
Hsync,
Vsync
or DE error
OSD no response
too dim
The brightness is
different between
upper side and
downer side.
partly picture
without color
Vertical, Horizontal
none
synchronousness
a few of colorfully
vertical lines
even(or odd)
vertical lines is dark
Check LCD Panel
Check SW board
SW1~SW4
Check I/F board
Check OSD
adjustment
Check SW board JP1
Check I/F board
Check backlight
Check I/F board
Check LCD panel
RGB
signal
error
H,Vsyn
c error
Check
power LED
Flash