Telefunken TF-LED15S27, Руководство по обслуживанию

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Flickering or
Black screen
（
Back light on
）
Check the connection of
Driver Board Cable
connect well
Change the LCD,
check if it is ok
Change driver
board cable
Y
N
Change LCD
N
Y
Check the network output,
J3 cable socket
Works normal
Y
Check U6
（
TSUMV29LU
）
Power supply and clock
circuit chip LVDS output
pin is short circuit,
or open-circuit
？
Change the circuit
Figure.2 Display Unit
(black screen)
N
Check LCD power VCC-
Panel is ok
？
J2 select is
right
？
Q1 output voltage is ok
？
Check the software
match
RE-Upgrade
software
N
Y