© Copyright 2018 TRIUMPH BOARD
This document contains confidential information which can be used by the recipient only for servicing the above product.
Reproduction or distribution of any content of this document without permission is strictly forbidden.
41
6.2 No image
Power indicator can't be
turned on
Ensure the power
cable is connected and
plugged into a good
known wall outlet
YES
Check that whether
there is 5VSB voltage
in certain pin of TV
power board
Swap power cable and power
outlet for known good.
NO
YES
Replace the KEY&IR board to
see if it is ok
YES
Replace the TV power board
Replace the TV main board
Check that whether
the power board
cables is well
NO
YES
NO
Replace the TV main board
and KEY&IR board
NO
Red power indicator on,
can't turn green
No image
Could the display be turn on by
remote and key controller?
YES
Replace KEY&IR board
NO
Replace the TV power board
Replace TV main board
NO
NO
Power indicator turn green
but no image
Check that whether there is
backlight
YES
Re-plug and swap V-BY-ONE
cable
YES
If the T-con is replaceable,
replace the T-con
Replace TV main board
NO
NO
Replace TV power board
Replace TV main board
Replace the screen
Replace the screen
NO
NO
NO
NO
Replace double frequency
board(only 98")
NO
Replace constant current
board(only 65")
NO
* for additional instructions of replacing LVDS (V-By-One) cable download “Internal LVDS video cable
replacement instructions” file from
https://www.triumphboard.com/support/repair-service/
, using your email
login