Panasonic TX-22LT3, Service Manual

Page: 60 / 115

8.2. Power Block Diagram
PUSH
9V
15V
STB_3.3V
1.5V
STB_2.5V
STB_5V
5V
SW801
SW101 SW102 SW103 SW104 SW105
D203
T661
T660
T602
T601
PA602
PA601
JK801
Q803
Q201
Q202
Q804
Q802
D874
D873
D892
D893
D804 D803
Q814
D809 D810
Q806
Q808
D813 D814
D815 D816
D817 D818
!
K-BOARD
F
+/UP TV/AV -/DOWN STR
LED 15V
K1
POWER SW
KEY
V1
STANDBY
(GREEN) POWER LED
(RED)
LED
To IC1001-77
(DG-BOARD)
VCC
RM201
REMOTE
CONTROL
RECIEVER
REMOTE
TO IC1001-5
(DG-BOARD)
V-BOARD
!
LED 15V
STB_3.3V
PH1
VH
VH
VH
TO
BACK LIGHT
9
7
3
5
4
6
4
PH2
5
7
TO
BACK LIGHT
VH
9
VH
6
VH
3
PH3
PH-BOARD
!
PD-BOARD
!
4
PD1
5
7
6
TO
BACK LIGHT
PD2
VH
9
VH
VH
VH
7
9
TO
BACK LIGHT
VH
3
6
4
VH
3
5
Q607
Q608
Q605
Q606
PD3
IC601
OP AMP
Q601
Q602
Q603,604
OVP
(OVER
VOLTAGE
PROTECT)
TO A-BOARD
VCC
IC602
PWM CONTROL
INV_DET
FROM IC3002-41
(DG-BOARD)
INV_PWM
FROM IC6004-98
(DG-BOARD)
LIGHT ON
FROM IC1001-97
(DG-BOARD)
PD5
15V
15V
15V
15V
15V
5V
5V
15V
DC15V IN
A1
A5
A-BOARD
!
KEY
TO IC1001-124
(DG-BOARD)
+12V
V_IN
V_OUT
OADJ
ON/
OFF
IC871
AVR 12V
TO DG3
(DG-BOARD)
Q801
IC2001
HP&SP AMP
IC890
+12V
ON/
OFF
V_IN OADJ V_OUT
AVR 12V
IC802
+9V
SS
V_IN
VD_S
V_OUT
9V
GND
IC2200
WOOFER AMP
IC4001
AV SWITCH
9V
Q805 Q807
Q813
GND
IC805
+5V
SS
V_IN
VD_S V_OUT
STB 5V
MAIN POW
To IC1001-92
(DG-BOARD)
From
Q809
Q810
STB 2.5V
GND SS
V_IN
VD_S V_OUT
IC806
+2.5V
SS GND V_OUT
+3.3V
IC807
VD_S
V_IN
STB 3.3V
ON/OFF
IC801
V_IN
1.5V
GND VO
Q811,Q812
PIXEL POW
From IC3002-91
(DG-BOARD)
OVP
(OVER VOLTAGE PROTECT)
From PD-BOARD
+1.5V
7
5
3
4
6
2
5
3
4
6
9
8 3
2
1
3
5
1
3
5
1
3
5
1
3
5
10
12
4
2
1
7
5
2
3
6
8
6
9
5
7
8
4
16
15
1 2 3 4 5
3 4 2 5 1
3 4 2 5 1
3 4 2 5 1
3 4 2 5 1
3 4 2 5 1
3 2 5 1
19 20 21
42
5
6
4
2
3
1
7
TX-22LT3
Power Block Diagram
TX-22LT3 Power Block Diagram
26