Panasonic TH-42PX20U-P Service Manual page 178

SC2
TO
P-BOARD
R6687
R6600 0.22
(P2)
0
1 2W =
*
Vsus
2
Vsus * C6601
R6688 200V
3 0.22 220u
A TP1 TP2
NC
=
2W
TP4
4
GND
TP3
5
GND
6
GND
TO SC23
P-BOARD
TP6 TP7
L6609
(P23)
G0ZZ00002183
1
+17V
2
+17V C6609 C6610
25V TP8
25V
GND 3 220u
1u
B
SC20
TO
D-BOARD
TP20 TP21
(D20)
1 R6695
5V
TP22 EXB38V471JV
2
CL
TP23
3
TP24
4
5
R6696
EXB38V473JV
TP25
6
TP26
R6697
7
SCSU
EXB38V471JV
TP27
8
TP28
9
L6603
10
G0ZZ00002183
TP29
11
L6604
G0ZZ00002183
TP10
SOS2 12
C
R6698
TP11
EXB38V473JV
CEL 13
TP12
CEH
14
C6679
15
16V 0.1u
C6680
16
16V 0.1u
TP13
CSL 17
TP14
CSH 18
TP15
CML
19
R6691
TP16
EXB38V471JV
CMH 20
TP30
TP31
R6692
EXB38V473JV
R6693
EXB38V471JV
D
R6694
EXB38V473JV
E
TH-42PX20U-P
SC-BOARD (1 of 2) Schematic Diagram
1
SC-BOARD TXNSC10QJS (1/2)
!
C6602 C6603 C6604 C6605 C6606 C6607
200V 200V 200V 200V 200V 250V
220u 220u 220u 220u 220u 2u
Q6627
2SD21850RL
TP9
R6604
10
IC6602
Q6628
C0ZBZ0000562
2SB1073001TV
NC HOUT D6613
9 8
B0ECHP000001
NC VB
10 7
J0JJC0000011
VDD VS
11 6
HIN NC
12 5
C6650
C6652
NC NC D6650
16V 13 4
25V
SF20LC30F10
1u
LIN VCC
14 3
C6651
GND GND
R6641 15 2
25V
100
4.7u
NC LOUT
16 1
C6682
16V
1u
1 20
1G~ VCC
2 19
1A1 2G~
3 18
2Y4 1Y1
9
4 17
1A2 2A4
10
5 16
AB_CPH 2Y3 1Y2
11
AB_SCSU
6 15
AB_SIU 1A3 2A3
12
7 14
2Y2 1Y3
AB_CL 13
AB_SID
8 13
1A4 2A2
14
9 12
2Y1 1Y4
15
AB_CEL2 AB_CLK
R6815
0 10 11
GND 2A1
16
AB_CEL
1 20
1G~ VCC
2 19
1A1 2G~
3 18
2Y4 1Y1
4 17
1A2 2A4
5 16
2Y3 1Y2
6 15
1A3 2A3
7 14
2Y2 1Y3
8 13
1A4 2A2
9 12
2Y1 1Y4
10 11
GND 2A1
CSH
CMH
C6600
16V R6657
Q6616
1k
1 14 1u
1A VCC
2SK062000L
R6658
CPH
2 13 1k
1B 4B
Q6617
3 12
1Y 4A
2SK062000L
R6659
4 11 1k
2A 4Y
5 10
2B 3B
6 9
2Y 3A
7 8
GND 3Y
2 3
C6701
250V C6702 C6704 C6705
2u 250V 250V 250V
2u 2u 2u
ECWF2205KSP
D6616
SF20LC30F10
Q6622
Q6621
R6631
2SK3637000VE 2SK3637000VE
5.6
D6615
D D
R6632
SF20LC30F10
5.6
S S L6628
L6618
G G
G0ZZ00002183 G0ZZ00002183
R6633
5.6
L6629
L6619
G0ZZ00002183 G0ZZ00002183
R6634
5.6
L6630
L6620
G0ZZ00002183 G0ZZ00002183
R6603
L6631
10k L6621
G0ZZ00002183 G0ZZ00002183
L6632
L6622
G0ZZ00002183 G0ZZ00002183
1/2W
R6689 L6623 L6633
22
G0ZZ00002183 G0ZZ00002183
L6662 1/2W
L6624
L6634
R6690
G0ZZ00002183 G0ZZ00002183
22
L6625 L6635
G0ZZ00002183 G0ZZ00002183
4.7u
L6626
L6636
G0ZZ00002183 G0ZZ00002183
C6643 C6639
250V 250V
L6627 L6637
0.1u 0.1u
G0ZZ00002183 G0ZZ00002183
R6635
5.6
D6618
D SF20LC30F10
R6636
5.6
S
G
R6637
Q6624
5.6
D6617
2SK3637000VE
D
SF20LC30F10
R6638
5.6
S
G
Q6625
2SK3637000VE
D6611
B0ECHP000001
R6608
10
Q6629
NC HOUT
8
2SD21850RL
C6641
NC VB
7
25V
4.7u
VDD VS
6 R6609
10k
HIN NC
5
Q6630
NC NC
D6651
4
2SB1073001TV
B0ECHP000001
LIN VCC
3
C6642
GND GND
2
25V 4.7u
NC LOUT
1
R6462
0
C6683 C6684
25V 25V
C6584
47u 47u R6589
IC6581
25V 10k
1u
C0BBBA000043
Q6581 D6585
COMPARATOR MAZ83300ML
2SD0601A0L
R6582
100k
D6586
MAZ83300ML
R6583
1 8
100k
D6583
2 - + 7 R6585 LNJ201LPQJA
1.5k
(RED LED)
3 + - 6
4 5 R6584
22k
R6586
R6588
1.5k
2.2k
C6585
16V
1u
D6582
MAZ80510LL
SCSU
CEL
4
D6623
SF20LC30F10
Q6611
2SD21850RL
D6600
B0ECHP000001
IC6601
L6607
J0JJC0000021
C0ZBZ0000562
R6625
10k
R6626
10
NC HOUT
9 8
Q6612
C6621
NC VB
10 7 2SB1073001TV
25V 4.7u
VDD VS
11 6
HIN NC Q6613
12 5
C6623
2SD21850RL
16V NC NC
13 4
1u
LIN VCC
14 3
C6622 25V
GND GND
15 2 4.7u
R6628
R6627
NC LOUT
16 1
10 10k
C6638
Q6614
25V
4.7u
2SB1073001TV
L6611
0.6u
L6612
0.6u
L6613
0.6u
L6614
0.6u
L6615
0.6u
L6616
0.6u
R6471
33k
R6470
33k
R6489
4.7k
D6465
MAZ83300ML
D6468
D6466
MA2J11100L
MAZ83300ML
D6467
B3PBA0000062
5 6
C6490
630V
R6499
2200p
8.2
1
1W
D6491
B0ECHP000001
2
Q6601
R6611
10 2SK3559000SQ
D
C6619
R6612
630V
10
2200p
S
G
Q6602
R6613
10 2SK3559000SQ
D C6625
R6614
630V
10
2200p
S
G
Q6603
R6615
10 2SK3559000SQ
D C6628
R6616
630V
10
2200p
S
G
Q6604
R6617
10 2SK3559000SQ
D
C6631
R6618
630V
10
2200p
S
G
D6605
Q6605
B0JCME000025
2SK3559000SQ
D
R6619
47 C6611
630V
S
G 2200p
D6606
Q6606
B0JCME000025
2SK3559000SQ
D
R6620
47 C6612
S 630V
G
2200p
D6607 Q6607
B0JCME000025
2SK3559000SQ
D
R6621
C6613
47
630V
S
2200p
G
D6608
Q6608
B0JCME000025
2SK3559000SQ
D
R6622
C6614
47
630V
S
2200p
G
3
4
5
6
7
8
TH-42PX20U-P
SC-BOARD (1 of 2) Schematic Diagram
7 8