No Horizontal Deflection - LG 177V Service Manual

NO H-DEFLECTION
(ONE VERTICAL LINE)
CHECK
Q706?
YES
CHECK
B + VOLTAGE
(50V)?
YES
CHECK
T701(FBT) PIN 2
(31KHZ 60V,
69KHZ 140V) ?
YES
CHECK
Q701 COLLECTOR
WAVEFORM?
YES
0V
T
TROUBLE IN
T701, P701

4. NO HORIZONTAL DEFLECTION

NO
NO
NO
NO
TROUBLE IN
Q706
TROUBLE IN
50V LINE
TROUBLE IN
Q719, Q720, D710
TROUBLE IN
Q701