LG 42LG70 Training Manual page 38

Ballast PWB Transformer Check
Ballast PWB Transformer Check
TOP
T2 T1
T4 T3
Caution: Over 1.2kV
1 2 3 4 5 6 7
ANY TRANSFORMER PRIMARY
SIDE WAVEFORM CHECK
1V p/div
1V p/div
Spring 2009
38
5us p/div 5V p/p
5us p/div 4.3V p/p
LCD DV 42LG70