LG FM776F Service Manual page 21

NO V-DEFLECTION
(ONE HORIZONTAL LINE)
CHECK
IC601 PIN 3
(15V)?
YES
CHECK
IC601 PIN 7
(40V)?
YES
CHECK
IC701 PIN 12, 13?
YES
3V
TROUBLE IN
IC601, V-CIRCUIT
6. NO VERTICAL DEFLECTION
NO
NO
NO
- 21 -
TROUBLE IN
R603 15V LINE
TROUBLE IN
HIGH-VOLTAGE OUT
CIRCUIT(FBT),
D721, R606
TROUBLE IN
IC701