LG T910B Service Manual page 27

Check tilt connector
output duty varies with
different DAC values?
Check and replace CRT.
IC401 Pin 33,34
8 9
output varies with different
Check and replace IC601
Waveforms
8
connection
IC401 Pin 31
YES
Q551
collect values?
YES
Q552,Q553
emit values?
YES
13. V Size or Pos. Variation Failure
DAC values?
YES
9
IC401, #33
12. Tilt Failure
NO
NO
NO
NO
IC401, #34
- 27 -
Check and replace IC401.
Check and replace Q551
Check and replace Q552,Q553
Check some parts around IC401.