Panasonic TH-42PM50U Service Manual page 99

BA BB BC BD BE
BF
A
B
HOT
COLD
C
D
E
P-BOARD TNPA3570 (5/6)
F
TH-42PM50U
P-Board (5 of 6) Schematic Diagram
1 2
BG
TO
P-BOARD
(3/6)
IC411
COMPARATOR
Q417 (AC IN)
C0BBAA000040
B1CHND000004
R404 C405
100K 0.01[KB]
4
5
R416
3300
R408
100K
1 2 3
Q403
B1CBGD000001
R418
D402 C402 C471 D403 R425 C410
47K
R420 C411 MA4240-M 100p 1[KB] MA4051N-MKT 3300 1[KB]
470K 0.01[KB]
IC403
CNC1S171RLL2
HOT
PHOTO
COLD
COUPLER
C593
R541
R514
0.22[KB] 100K
100K
R525
R540
47K
R509 R519
1000
100K 100K
R602
R686 Q550
3300[F]
1000
B1CHGD000006
Q551
B1CBGD000001
R689
C510
1000
0.1[KB] R606
1200[F] C608
0.01[KB]
R625
100K
C506 0.01[KB]
24 23 22 21
P30 P31 P00 P01
VDD VSS XIN XOUT
1 2 3 4
C504
1[KB]
X501
4MHz
R690
R571
10K
10K
R640
R653
10K 10K
Q501
2SD1820A0L
R568
180
R506
1000
Q503
R569 Q502
XN0440100L
180
2SD1820A0L
R504
R502 1000
100K
R503
C502 100K
0.01[KB]
3 4
BI BJ
BH
IC402
5 4
C0BBAA000040
COMPARATOR
R494 (PFC DET)
R487
6800
1 2 560K[F]
3
R495
R486
6800
560K[F]
R496
560K[F]
R453
1000
Q421
C482
R497 Q418 2SD1819ARL
24K[F] R693 0.1[KB]
C421 2SD1819ARL
C418 4700
0.01[KB]
1[KB]
R480
C422
91K[F]
R692
0.01[KB]
4700
C635
0.01[KB]
IC401 IC404
CNC1S171RLL2 CNC1S171RLL2
PHOTO
COUPLER
C612 R508
0.01[KB]
1000
PHOTO
COUPLER
R511
R538
R510 100K
100K
100K
R651
47K
20 19 18 17 16 15 14 13
R523
1000
P02 P13 D0 D1
P03 P10 P11 P12
IC501
C2ABDD000064
Q552
B1CBGD000001
POWER MCU
CNVSS Reset P21 P20 D5 D4 D3 D2
5 6 7 8 9 10 11 12
C519
R520 R513
1[KB]
100K 100K R610
10K
R515
R516
1000 1000
R611
10K
C503
0.01[KB]
Q544
IC502
XN0440100L
COEBH0000190
RESET
C505
1000P[KB]
5 6
BK
HOT COLD
R450
1000
PR503
K5H502Z00003
R505
33
D505
AW04V0
C607
C509
1[KB]
100/25V
R677
220K
Q537
B1CFQD000001
R678
22K
R688
Q538
22K
B1CFQD000001
R575
1000
C609
0.01[KB]
4 5
R694
100K
IC507
C0CBABE00023
C636
1[KB]
+5V REG
3 2 1
R535 C637
0.1[KB]
1000
Q535
D555
2SD1819ARL
R615 R501 MA4075-M
22K
10K
R512
22K
C583
1000P[KB]
R623
10K
C507 R581
47K
0.01[KB]
R536
1000
R542
Q557
1000
R517
2SD1819ARL
C508
10K 0.01[KB] Q559
R577
2SD1819ARL
47K
C639
C631
0.01[KB]
0.01[KB]
7 8
BL BM
31
32
33
R684
22K 34
Q536
B1CFQD000001
R685
100K
35
R557
470
36
Q554
B1DHBD000004
37
C610
1[KB]
R618
100K
D559
MA4075-M
R617
10K
Q553
38
2SD1819ARL
R616
10K
C623
R687 C626 10/50V
0.01[KB]
10K
39
40
41
R518
42
100
43
R532
100
44
R586
Q561
R583 47K R697
47K 100K 2SD1819ARL
R580
R546 47K
1000
45
R578
47K
46
C638
0.01[KB]
47
48
49
50
51
52
TH-42PM50U
P-Board (5 of 6) Schematic Diagram
9