LG FLATRON 915 FT PLUS Service Manual page 18

NO TILT (ROTATION)
CHECK
IC612 PIN 12 VOLTAGE
(5V) ?
YES
CHECK
IC612 PIN 4
(-12V) ?
YES
CHECK
IC612 PIN 3 ?
YES
TROUBLE IN P613,
TILT COIL CONNECTOR,
TILT COIL
7. NO TILT (ROTATION )
NO
NO
NO
TROUBLE IN
IC911, D922
TROUBLE IN
D923, IC613
TROUBLE IN
IC271 (MICOM), IC704
IC612