Panasonic TX-17LA1Q Service Manual page 83

SW801
PUSH
Q801
STB 15V
Q803
Q805
Q804 Q814 Q813
OVP
POW ON
DC 15V
JK801
DC IN
MAIN POW
Q807
Q806
Q808
V-BOARD
!
Q202
V1 A5
G
D203
6 LED 15V 8
R
Q202 4 LED R 10
VCC 8 STB 3.3V 6
RM201
10 REMOTE 4
GND
VOUT
K-BOARD
!
SW105 SW104 SW103 SW102 SW101
STR F -/DOWN +/UP TV/AV
K1 A3
3 KEY 3
4 KEY 4
R105 R104 R103 R102 R101
TC-17/20LA1H, TX-17/20LA1M/Q/T/X/Z
Power Block Diagram
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IC2501
IC802 IC803
MSP
AVR 9V AVR 8V
34
9V 8V
1 2 3 1 39
11
5
12
IC4001
13
AV SW
65
65
IC805
80
Q809
5V
AVR 5V
STB 5V
1 2
5
Q810
IC807
AVR 3.3V
STB 3.3V
1 2
5
STB 2.5V
IC806 IC801
AVR 2.5V AVR 1.5V
STB 2.5V 1.5V
VIN VO
1 2 1 3
ON/OFF
5 2 6
Q811,812
IC871 IC2001
AVR 9V
AUDIO AMP
9V
1 2 19
5
OVP
Q603
Q604
Q601 Q607
Q608
Q602 Q605
Q606
A-BOARD
!
Q851
3 5
IC851
COMPARATOR
5V
MAIN POW
IC601
AC INV ON
8
7
3 5
1
6 2
IC602
INV DET
4
2
T601
3 9
A7
4
TO BACK LIGHT
1
5
2
6 7
T602
3 9
A8
TO BACK LIGHT
4
1
5
2
6 7
BL-BOARD
!
T701
A4 BL1
3 9
BL4
2 INV 15V 2 4
1
3 INV 15V 3 5
2
T701-3
5 5
6 7
T701-6
6 6
T702
8 T702-3 8
T702-6
9 9 3 9
BL6
4
1
5
2
6 7
8 8
IC4103 IC4102
B-BOARD
!
AGC DET EX.I/O
TNR001
A1 B1
5V
5 5
5V
9 9
7 30V 7
!
LCD PANEL
TO BACK LIGHT
TO BACK LIGHT
A6 TO DG9001
33 9V
32 9V
20 5V
5V
19
5V
18
5V
17
STB 5V
21
24 STB 3.3V
23 STB 3.3V
27 STB 2.5V
26 STB 2.5V
1.5V
15
1.5V
14
PIXEL POW
5
4 INV ON
1 INV PWM
3 INV DET
12 MAIN POW
6 LED R
REMOTE
7
KEY
8
BV
13
7 +B
9 BTL
TO LCD PANEL
1
TC-17/20LA1H, TX-17/20LA1M/Q/T/X/Z
Power Block Diagram