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LG Flatron F720B - Page 28

LG Flatron F720B
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Check if AC
Voltage of IC401 Pin 35
waveform is Variable
T701 pin 2 voltage
is change with H frequency?
The Voltage
waveform Q706 Collector
is right?
- 27 -
11. Abnormal H_Size
NO
NO
Repeat the troubleshooting
Guide of H_deflection failure.
Check D/D converter circuit
Check IC401 B+ control circuit.
YES
12. Side Pin or Trap Failure
NO
13. Para. or Pin Balance Failure
Replace IC401.
Check and replace IC401.
21
6
Q706, Collector IC401, #35
21 6
Waveforms
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