Y
Y
Y
Y
Y
OK
OK
OK
OK
OK
OK
N
N
N
N
N
N
N
N
N
N
N
Has audio but no video
Check if the backlight is on
Done
Check the connector of
b
ackli
g
ht inve
r
ter connected
Check the LVDS line
if it is connected
Safely connect the
inverter line
Check the voltage of
inverter line is 24V
Done
YY
Y
N
N
N
Check the
“ON/OFF” voltage
on “CON8”, should
be greater than 2.7V
Check “Q3” &
“U41” Pin81 if
it works well.
Change
the panel.
Done
Upgrade the
software
Change the
“
Q
3” or “U41”
Change the “U9” Done
Done
Done
Upgrade the
software
Done
Safely connect the
LVDSline
Make sure the LVDSpower is correct
(
5V for 26”
,
12V for 32”&42”
)
Done Change the EEPROM U43
“ATMEL24C64”
Done
Correct the
p
owe
r
Chane the
main IC U41
Done
Change the
main
b
oard
Done
Done
Service Flow Chart
-49-