LG Flatron 774FT Service Manual page 22

NO TILT (NO ROTATION)
CHECK
IC401 PIN 21
WAVE FORM ?
YES
CHECK
15V LINE
AND 6.3V LINE ?
YES
CHECK
Q503 COLLECTOR
VOLTAGE ?
YES
TROUBLE IN
P501, TILT COIL
10. NO TILT (NO ROTATION )
NO
NO
NO
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TROUBLE IN
IC401 ( MI COM)
TROUBLE IN
15V LINE, 6.3V LINE
TROUBLE IN
Q501~Q503