High Voltage Failure - LG Flatron T710BH Service Manual

18
waveform is right?
Q706 collecter waveform
21
Replace T701
Waveforms
18
Q719, Drain
Input full white pattern to monitor.
input exists and varies
with different patterns?
Check P302, D801,
R801~803, R798.
T701 Pin 6 Voltage exists?
Check and replace CRT

15. High Voltage Failure

Q719 drain
YES
is right?
YES
21
16. ABL Failure
IC302 Pin22
NO
YES
YES
NO
NO
Q706,Collector
YES
NO
- 28 -
Check Q719,Q720
Check 50V line
Repeat the troubleshooting
Guide of H_deflection failure.
Check and replace IC302
Check and replace T701