Daewoo DWP-28W2ZLF - Manual (Page 67)

Appendix Service manual WP-795
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On normal run mode, I501 microcontroller pin 63 (power) is set to high
•
So, I810 controlled rectifier is not conducting
- Q809 is conducting. So, Q808 is not conducting and Q807 is conducting
- So, Q807 collector is connected to the ground and I810 controlled rectifier gate pin is set
to low (no conducting)
•
So, current from 11V DC voltage (from T801 SMPS transformer pin 13) does not flow through Q811
and Q810 transistors but flows through I806 IC error amplifier
- Q809 is conducting. So, Q810 is not conducting and no current flows from Q810 collector
to the ground
Therefore, the power circuit diagram is the following one:
2-9-2-1-2 power supply circuit diagram during TV set normal run