Panasonic TH-42PA20A Service Manual page 26

TH-42PA20A / TH-42PA20F / TH-42PA20H / TH-42PA20M / TH-42PA20R
4.2. P-Board (2 of 2) Schematic Diagram
Vsus=170V
D567 D570
B0HARR000009 B0HARR000009
190V
1
C566 C573 C574
200V 200V
2kV
1800 1800
1000p
R597 R598 R600
220k 220k 220k
D572
B0HCMM000001
20V
# 1/2W
2
R587
22 C575
R592
50V
2.2k
C569
1kV 22u
1W
100p
R602
46.4k
135V
R603
49.9k
1%
65V
D571
R584 MAZ30560ML
2.2k
3
R604
49.9k
1%
35V
C568
4700p
R585
100 50V
4
Vsus
R591
47k
IC553 R606
2.55k
C0DAEJC00003
1%
ERROR
DETECT
D568
B0HFRJ000012
12V
5
100p C572
C564
25V
1kV 2200u
C591 100p
6
1kV
D660 15V
B0HFRJ000012
7 C590
R619 R621
25V
C570 4.7k 4.7k
2200u
1kV
470p
70V
8
D573 12V
C576
B0HFRJ000012
25V
9 2200u
C571
1kV
10 100p
15V
D574 C577
B0HFRJ000012 25V
2200u
D
R595
Q552
470
1/2W
#
B1DEGQ000019
G D576
S D577
B0HCMM000001
MA3X152K0L
R593 R594
100k
22
R601
6.8k
R596 R599
6.8k 4.7k 2SC3311A0A
C565
R607
150
R589
Q553
49.9k
1%
2SB0621AWA
D575
R583 B0JCME000025
2.2k R561 D578
11 12.1k MA3X152K0L
1%
12V
R586 C567
100 4700p R590
12 10k
50V
Vda
IC557
2.5V
C0DAEJC00003
R588
ERROR 47k R635
2.55k
DETECT 1%
C414
560p
500V
D410
B0HCMM000001
13 D409
C416 R417
B0HCMM000001
16V 100k
470u
C417
14 25V
47u
+
R418
R412 0
220
#
15
1/2W
D411
B0HCMM000001
C415 1%
R571 4700p R415
0 50V 3.9k
16
R414
47k
ERROR IC402
DETECT C0DAEJC00003
R416
2.55k
1%
17
18
19
20
21
TH-42PA20A/M/H/R
P-BOARD (2 of 2) Schematic Diagram
10 11
P-BOARD TXN/P2QCSB (2/2)
!
190V
D592
B0HCMM000001
D593
B0HCMM000001
7V
D586
B0HCMM000001
15V
D583
MA3X152K0L
20V
R617
10k
D584
Q555
MA3X152K0L
2SC3311A0A
R613 Q557
R616
1k 10k D590
MA3X152K0L 2SC3311A0A
R605 R623
D585
50k 10k
MAZ30560ML
R614
D594
4.7k
R554 MAZ30560ML
105k
2.5V R552
105k
IC558
C0DAEJC00003
R555
ERROR
2.49k
1%
DETECT
7V
D579
MA3X152K0L
IC555
C0DAAHG00007
Q554 R608 R610
6.8k 3.3k
1% AVR5V
R609 4V
12.1k
1% R615
50V 1k
1%
C578 50V
R611
3300p
1.5k D587 C583
B0JCME000025 0.1u
L554 5V
D580 220u
R618 R620
MA3X152K0L R612 C579
68 68
2.55k 25V C581
6.3V
1% 220u
1200u
D589
B0HCMM000001
ERROR IC554
C0DAEJC00003
DETECT
7V
IC403
AN7705F AVR5V
1 3
IN OUT
C419
C418
COM 10V
16V
470u
100u
2
Q404
2SC3311A0A
R420
10k
R422
10k
R421
10k
Q401
D412
2SC3311A0A R426
MAZ30510ML R425
4.7k
47k
R427
4.7k
Q403
R424
2SC3311A0A
47k
R428
22k
Q402
R423 C420
2SC3311A0A
25V
22k
100u
12 13
TO
TO SC-BOARD
SC-BOARD P11
(SC11)
(SC2)
P2 1
NC
1 Vsus 2
Vsus
2 Vsus 3
Vsus
3 4
NC NC
GND GND
4 5
GND GND
5 6
GND GND
6 7
TO
SC-BOARD
P23
(SC23)
1
DR15V
2
DR15V
3
GND
TO
R626
10k
PA-BOARD
D595
MA3X152K0L P5
(PA5)
1
12V
2
12V
C585 R627 C584 3
5V
25V 47k 0.01u
100u 50V
R625 4
STB5V
10k
5
GND
D596
MAZ30510ML 6
GND
7
+12Vs
8
+12Vs
9
GNDs
10
GNDs
11
DR15V
TO
D-BOARD
P25
(D25)
1
12V
2
12V
3
GND
4
GND
5
5V
6
GND
7
FAN_CONT
8
STB7V
TO
PA-BOARD
P7
(PA7)
1
+15Vs
2
+15Vs
3
GNDs
4
GNDs
TO
SS-BOARD
P12
(SS12)
1 Vda
DR15V
2
GND
3
STB PS
4
5
C421 GND
50V
0.022u
TO
C422
D-BOARD
50V
0.022u P27
TP50 (D27)
1
RUSH ON/OFF
2
TV ON/OFF
TP51
3
M_POWER
4
STB5V
5
KILL SOS
6
FAN SOS
7
PS SOS
8
ALL OFF
9
GND
R628
C586 R630
47 4.7k
50V
0.01u 1/2W
Q558
R631
2SC3311A0A
100k
P10
14 15
26
TH-42PA20A/F/M/H/R
P -BOARD (2 of 2) Schematic Diagram
16 17 18