Panasonic TH-42PX20U-P Service Manual page 175

PA-BOARD TXNPA1QKSU (3/3)
!
21
IC7551
22
23 C0DBCMG00001
ODU
15V/11V
D7552
L7551 MA3X152K0L
C7552 C7571
L7552
25V
G0C101K00023 50V
100u 220u
0.01u
C7551
R7529 R7528
25V
0 0
220u
D7551
MA2Q73700L
R7552
820
1%
R7560
47k
IC7504
C0DAAZG00006
MAIN_4.2V
L7510
R7524
G0C101K00023
0
1%
C7516 R7509
1%
25V 806
470u R7510
1.87k
L7511 C7517
D7515
100u
16V
MA2Q73700L
820u
R7518
22k
24
D7560
Q7509
MAZ41200MF
R7519
2SD0601A0L
R7517
12k
R7556 0
10k
Q7551
UNR221400L
ODU_OFF ON
25
IC7505
C0DAAZG00006
MAIN_2.5V
R7522
0
L7513
G0C101K00023
1%
C7521 R7511
25V 820
470u
L7514
D7512
100u
MA2Q73700L
26
27
SUB5V
28
SUB9V2
29
MAIN9V
30
ODUONOFF
TVON
ODU11/15V
31
32
TH-42PX20U-P
PA-BOARD (3 of 3) Schematic Diagram
19 20
C0DBCMG00001
L7561
220u
C7561
25V
470u
R7551
2.55k
ODU11/15V
MA2Q73700L
1%
R7587
47k
C7554
R7558
16V
1k
1u R7568
10k
Q7562
R7569
2SD0601A0L
1k
10k
R7580
0
Q7561
47k
UNR221400L
FAN ON/OFF
R7570
Q7563
10k
2SD0601A0L
R7571
47k
L7582
G1C101M00018
L7512 TPB7504
22u
TUNER 30V
C7518
MAIN4.2V
50V
0.01u IC7581
C7583
C0DBAMA00014
D7511
50V
MAZ20680A0LS
0.1u
C7582
1 EaIn 8
16V FB
0.22u
2 SCP 7
L7581
R7520 OSC
1k 33u
3 VCC 6
GND
D7581
MA2J11100L 4 BR/CTL 5
C7581 Out
50V
C7573 C7533 R7583
4.7u
16V 16V 1k
1u 330u R7591
56k
Q7582
B1ABPF000005
Q7581
UNR521100L
1%
R7512
604
L7515 TPB7505
22u MAIN2.5V
C7522 C7523
D7513
16V 50V
MAZ20510A0LS
0.01u
820u
C7534
16V
330u
21 22
IC7561
FAN 9V/7.2V
TO FAN1
R7566
820
1%
1%
L7563 TPB7512
L7562
R7565
470uH 220u FAN9V/7.2V
3.92k
R7561
C7574 12k
C7562 C7563
16V 50V 16V
12k
470u 0.01u 470u R7562
R7563 12k
D7565
R7564 12k
R7596
1k
D7561
MA2J11100L
R7574
2.7k
C7567
1%
50V
0.01u
FAN SOS
BT30V TPB7510
ODU11/15V
SUB9V1
D7582
R7584 MA3X78900L
5.1k
TPB7506
SUB5V
R7585
82k
1%
R7586
C7585
50V 1.37k
MAIN3.3V
10u 1%
MAIN9V
TPB7520
NR14V/MAIN**V
SUB5V
SUB-9V2
MAIN2.5V
TPB7509
TPB7515
TPB7516
TPB7513
TPB7514
TPB7517
TPB7518
TPB7519
23
TO
D-BOARD
PA12 PA21
(D12)
1 TXD 1
GND
2 2
R7595
RXD
3 3
0
4 4
TO FAN2 TO FAN4
STB5V
5 5
TO FAN3
GND
6 6
PA11 PA14
PA13 PA15 12V
7 7
1 1 1 1
2 2 2 2
TO
3 3 3 3
D-BOARD
PA4 PA22
(D4) STB5V
1 1
IIC_CONT
2 2
GND
3 3
SCL1
4 4
SDA1
5 5
SCL2
6 6
D7564
SDA2
MA2J11100L
7 7
SCL3
D7562 D7563 8 8
MA2J11100L MA2J11100L
SDA3
9 9
IRQ
C7568 10 10
R7579
50V
68k
22u 11 RST 11
12 GND 12
R7590
0
PA17 PA25
SUB5V
1 1
SBO
2 2
TO
BAO
3 3
DG-BOARD
GND
4 4
(DG2)
PA2
1
BT30V
2
(5VD2)
3
(5VD1)
4
GND
5
(5VD1)
6
GND
7
SUB5V&5VA1
8
GND JK7007
K4ZZ01000121
9
(UNREG7V)
10
GND
JK7006
11
MAIN5V K4ZZ01000121
12
GND
13
MAIN5V
JK7005
14 K4ZZ01000121
GND
15
MAIN9V
16
GND JK7004
K4ZZ01000121
17
NR12V
18
GND
19
SUB5V&5VA1
JK7003
20
GND K4ZZ01000121
21
SUB9V
22
GND
23 JK7002
SUB9V
K4ZZ01000121
24
GND
25
MAIN2.5V
26
GND
27
MAIN2.5V
28
GND
29
(MAIN5V)
30
GND
31
(MAIN5V)
32
TVON
33
SOS
34
(ODUONOFF)
35
(ODU11/15V)
SUFFIX JW
36
AC_ON/OFF
AB
37
JS2101
FANONOFF
38
FANMax/Min
39
FANSOS
40
24 25
PA24
1 TXD
2 GND
RXD
3
4 SRQ
5 STB5V
6 GND
7
LOADER_IN_SEL
PA23
1
SUB3.3V
2
SRQ
3
GND
4
SCL0
5
SDA0
6
SCL3
7
SDA3
8
TO
VPP
DG-BOARD
(DG8)
PA8
TPB7507
1
FAN+B FAN7V/7.2V
2
GND
3
TX
4
RX
5
GND
6
IIC_CONT
7
GND
8
VPP
9
SDA3
10
SCL3
11
SDA0
12
SCL0
13
GND
14
SRQ
15
SUB3.3V
16
GND
17
LOADER_IN_SEL
18
SDA3(PANEL)
19
SCL3(PANEL)
20
GND
TH-42PX20U-P
PA-BOARD (3 of 3) Schematic Diagram
26 27