Panasonic TX-22LT3 Service Manual page 61

IC871
+12V
AVR 12V
D
OADJ
V_IN
V_OUT
1 2 3 4
D874
D873
801
D804 D803
4
D809 D810
Q807
Q814
Q813
D814 D813
OVP
(OVER VOLTAGE PROTECT)
From PD-BOARD
D815 D816
D817 D818
26
IC2001
AVR 12V
HP&SP AMP
ON/
OFF
5 19
IC802
9V
+9V
V_IN V_OUT
GND VD_S SS
1 2 3 4 5
IC805
+5V
STB 5V
V_IN V_OUT
GND VD_S SS
1 2 3 4 5
IC806
STB 2.5V
+2.5V
V_IN
V_OUT GND VD_S SS
1 2 3 4 5
IC807
STB 3.3V
+3.3V
V_IN
V_OUT GND VD_S SS
1 2 3 4 5
IC801
+1.5V
1.5V
V_IN ON/OFF VO GND
1 2 3 5
IC890
+12V
ON/
V_IN V_OUT OADJ OFF
1 2 3 4 5
D892
D893
Q806
Q808
From
Q809
Q810
PIXEL POW
Q811,Q812
From IC3002-91
(DG-BOARD)
IC2200
WOOFER AMP
20 21
IC4001
AV SWITCH
42
9V
MAIN POW
To IC1001-92
(DG-BOARD)
TX-22LT3 Power Block Diagram
9V
1
5V
2
STB_5V
3
15V
4
STB_3.3V
5
1.5V
6
STB_2.5V
7