Daewoo DTH-29U3 Service Manual page 70

5-10-2-1-3 power supply functioning during TV set normal run mode
- I801 transmits controlled pulses to T801 which generates DC voltages after rectifications by secondary part diodes
and electro capacitors (by example by D820 and C813 on 130V supply voltage line).
- 8V, 5V, 3.3V, 1.8V supply voltage lines have stabilized voltages obtained by I822, I820, I824, I821 voltage regulators.
- 5V, 3.3V, 1.8V stand-by supply voltage lines have stabilized voltages obtained by I823, I826, I827 voltage regulators.
- On 130V supply voltage line, R823 resistor has been chosen to reach exact DC voltage required on this line.
- 130V supply voltage line includes an IC error amplifier (I806) which corrects unexpected DC voltage variations on
this line.
5-10-2-1-4 power supply IC delivery during TV set normal run
power supply line
130V
14.5V
14V
8V
5V
3.3V
S/B 5V
S/B 3.3V
IC power supply
delivery
FBT
I602 sound amplifier pins 3-16
T401 H- drive
I601 Sound Demod pins 38-39-
I101 IF IC pin 23
I502 IC pin 47
I601 Sound Demod pins 7-18-57
I702 EEPROM pin 8
Tuner
I501 and I502 Main IC pins
I703 IR receiver pin 1
I701 pins and I502 pins
-69-
CP830F Service Manual
Remarks
FBT supplies 35V to I301 vertical IC
FBT supplies 11V to I301 vertical IC
FBT supplies 33V to the tuner
FBT supplies 180V to I901 video amplifier pin 6