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On normal run mode, I501 microcontroller pin 1 (power) is set to high<br />
So, I810 controlled rectifier is not conducting<br />
- Q809 is conducting. So, Q808 is not conducting and Q807 is conducting<br />
- So, Q807 collector is connected to the ground and I810 controlled rectifier gate pin is set to low (no<br />
conducting)<br />
So, current from 14V DC voltage (from T801 SMPS transformer pin 13) does not flow through Q811 and Q810<br />
transistors but flows through I806 IC error amplifier<br />
- Q809 is conducting. So, Q810 is not conducting and no current flows from Q810 collector to the ground<br />
Therefore, the power circuit diagram is the following one :<br />
* power supply circuit diagram during TV set normal run<br />
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