Panasonic TH-42PV500AA / TH-42PV500BA / TH-42PV500EA / TH-42PV500RA / TH-42PV500YA Simplified Service Manual ▷ View online
5 Block and Schematic Diagrams
5.1. Schematic Diagram Notes
TH-42PV500AA / TH-42PV500BA / TH-42PV500EA / TH-42PV500RA / TH-42PV500YA
13
5.2. P-Board Block Diagram
-
+
-
+
+
+
D510
D509
X501
4NHz
4NHz
Q527
D534
D536
R661
1
2
3
D545
D544
D542
D521
VR352
1
2
3
D535
PR509
D532
D531
D530
D568
Q409
Q408
Q413
Q412
D417
D420
D419
C467
D404
D462
D511
PR501
D444
D401
D505
D555
D563
R544
D567
PR503
R671
VR351
C555
C446
R443
1
2
3
L506
D529
D528
1
2
IC408
4
2
1
3
1
3
4
2
1
3
4
2
IC404
IC403
3
9
8
14
4
2
16
10
T401
5
8
7
6
VCC
MOS
DRIVE
CURR
DET
CURR
COMP
COMP
2
1
3
4
Q407
Q420
Q404
Q406
R406
D415
Q406
R406
D415
IC406
POWER
FACTOR
CORRECTOR
5
4
9
2
10
6
T402
Q535
8
6
10
7
9
2
3
4
1
15
19
24
18
22
23
16
17
21
20
VDD
VSS
XIN
XOUT
RESET
STB PS
PFC DET
F STB PC
ON/OFF
ON/OFF
DISCHARGE
ECO ON/OFF
F STB ON/OFF
V LOW DET
AC P DET
TV ON/OFF
VSUS DET
STB ON/OFF
PS SOS
PFC ON/OFF
V LOW ON/OFF
IC501
1
3
IC502
RESET
1
5
2
4
6
3
T407
9
8
11
3
15
2
6
4
1
IC512
1
4
Vda
P12
+15V
+12V
TO
1
2
6
PB5
P5
+12V
+12Vs
4
+15V
+12Vs
7
+12Vs
8
1
+15V
2
+15V
P23
TO
SC23
SC23
9
+5V
TO
STB5V
7
P25
D25
+5V
10
Q421
POWER MCU
COLD
COLD
HOT
10
STB_PS
4
1
5
3
IC402
Q422
7
8
STB12V
DC15V(V15)
DC12V(V12)
Q509
PB30
+15V
FAN SOS
5
4
3
P30
+5V
TO
FAN CONT
1
14
FAN SOS
Q550
Q557
2
3
1
16
17
15
18
12V
2
12V
3
1
FAN CONT
Q552
3
HOT
P
POWER SUPPLY
4
Vda
Q508
13
14
PR601
9
6
5
4
3
5
ZCD
7
GD
8
VCC
1
3
VFF
4
CS
INV
Q507
Q506
Q506
IC509
13
14
12
MAIN RELAY
RUSH RELAY
VSUS
ON/OFF
ALL OFF
11
Q561
Q559
13
F STBY ON
IC507
1
5
REG
Q544
ALL OFF
PS SOS
PANEL MAIN ON
ECO_ON
Q567
Q518
Q519
F STB 14V
2
1
3
F STB 14V
F STB 14V
P10
TO
PA10
12
16
15
13
2
4
6
IC520
5
PR401
PR402
Q401
4
7
8
5
3
2
1
Q435
Q423
R903-R906
R928-R931
Q424,Q434.Q436
R928-R931
Q424,Q434.Q436
L405
L404
F401
F402
1
4
NEUTRAL
RL402
RL403
R455,R474
R479,R481
R483,R488
Q430,Q432
R479,R481
R483,R488
Q430,Q432
Q433,Q441
Q417
IC407
Q438
Q431
Q439
Q439
Q440
4
2
4
2
IC409
3
1
1
3
3
14
13
10
18
9
6
15
16
SS12
TO
T601
REG
IC504
2
1
T410
T404
D539
LIVE
P9
2
ERROR DET
POWER
DC POWER
ERROR DET
COMPARATOR(PFC DET)
+5V REG
COLD
HOT
AC CORD
TO
PFC DET
STB5V DET
ALLOFF SW
EXT
Isen
VIN
CE/SS
CLK
FB
VSS
VlOW DET
VlOW DET
MAIN ON/OFF
RUSH ON/OFF
INV.
Vlow
Vlow POWER CIRCUIT
Vsus POWER CURCIUT
INV.
INV.
OSC
OSC
F STB 14V
D418
R464
R472
R473
R465
R496
R495
R494
Q418
R497
(350V
40V)
PFC OUT
IC411
1
4
COMPARATOR(AC IN)
5
3
Q4O3
L403
Q503
Q501
Q502
Q551
Q505
R622
R648
R636
R626
R656
ERROR DET(Vsus)
IC506
1
3
REG
ERROR DET
IC503
1
2
REG
SW
Q553
Q554
SW
SW
Q560
Q564
Q558
Q562
INV
SW
Q565
ON:L
STB
OVER
VOLTAGE
PROTECTION
(8V
OVER
VOLTAGE
PROTECTION
(8V
2V)
Q414
Q415
CONTROL
AC IN
(66.5V
3V)
DETECTION
Q511
Q512
H:ON
Q538
STB 5V ON
Q537
SW
2
Vda
73V
D569
D570
D571
R670
Q510,Q516
Q541
R650
R649
5V OUT
DETECTION
DETECTION
COUPLER
PHOTO
IC412
COUPLER
PHOTO
CONTROL
D579
R579
D549
R666
D551
R545
(16V
2V)
3
4
1
2
IC505
IC401
COUPLER
PHOTO
COUPLER
COUPLER
DC-DC
CONVERTER
Csus
Q530
Q525
Q525
R533
(3V
1.0V)
178V
(1.7A)
R627
Vsus
R526
R527
H:ON
Vdat OVER VOLTAGE
DETECTION(100V
DETECTION(100V
25V)
VSUS OUT
DETECTION
DETECTION
(60V
40V)
OVER
VOLTAGE
PROTECTION
(490V
VOLTAGE
PROTECTION
(490V
80V)
COUPLER
PHOTO
COUPLER
PHOTO
PHOTO
OVER
VOLTAGE
DETECTION
(490V
VOLTAGE
DETECTION
(490V
80V)
(Vda)
DETECTION
12V OVER
VOLTAGE
VOLTAGE
(16V
2V)
PROTECTION
INV.
COUPLER
PHOTO
SC2
TO
Vsus
1
2
TO
2
Vsus
P11
P2
Vsus
Vsus
SS11
3
SW
Q536
PFC
D427
D428
R444
R475
R441
R442
D435 D467
D441
1
R921
D552
Q517
Q520
R620
R589
R590
R621
R534
D574
D588
D572
OSC
OSC
Vda 70V
Vsus 188V(0.6A)
395V
395V
TH-42PV500AA/BA/EA/RA/YA
P-Board Block Diagram
P-Board Block Diagram
TH-42PV500AA/BA/EA/RA/YA
P-Board Block Diagram
P-Board Block Diagram
TH-42PV500AA / TH-42PV500BA / TH-42PV500EA / TH-42PV500RA / TH-42PV500YA
14
5.3. P-Board (1 of 6) Schematic Diagram
C426
470P
470P
C429
0.015
R444
12K
R430
430K
430K
D503
MA165
R424
22K
D504
MA165
R440
470K
470K
C436
1.0
R451
33K
R433
12K
C443
1000p
R449
0.82
C432
1.0
R458
4700
4700
IC406
C0DAZZZ00021
1
2
3
4
5
6
7
8
R436
15K
R443
2K
ZN401
D4EAD6210001
D418
B0BA7R900004
C444
1000p
C409
2.2uF
R441
680K
680K
R473
560K
560K
D415
B0JAME000081
R452
10K
R439
12
R417
430K
R448
0.82
R456
33K
R437
18K
C428
220P
220P
R454
10K
R464
33K
R438
330
R442
680K
C430
0.015
R472
560K
ZN402
D4EAD6210001
R465
560K
560K
R475
680K
680K
R462
430K
430K
C459
0.015
C460
330p
330p
C461
330p
330p
C463
22P
R414
15K
D433
MA4150-M
C445
1.0
Q401
B1CHND000004
R421
33K
R471
3300
R426
10K
C440
10
C431
1000P
L403
EXCELSA35T
D431
B0JCDD000002
R415
10K
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
R428
10K
ZH2
ZH1
ZH3
ZH4
ZH18
ZH20
ZH17
ZH19
ZH21
ZH22
ZH32
ZH30
ZH31
ZH34
ZH35
ZH33
ZH92
ZH95
ZH96
ZH97
ZH8
ZH7
ZH37
ZH36
ZH38
ZH48
ZH49
R431
10K
C423
4700P
C427
1.0
Q420
2SD1819A
R463
33K
R467
1000
Q407
XN4601
C468
0.01
0.01
D429
ERA15-10
R419
100K
100K
P9
K1KA03A00537
4
LIVE
NC
3
-
2
NEUTRAL
1
ZH11
ZH12
L404
G0B123K00004
1
2
4
3
L405
G0B123K00004
1
2
4
3
C473
680P
680P
C476
680P
680P
Q422
2SD1819A
R490
47K
R491
47K
Q404
B1BCCF000022
R493
12
R410
10
ZH43
ZH42
ZH40
ZH51
D419
RU30ALF014
D420
RU30ALF014
ZH102
ZH103
ZH104
ZH105
ZH106
ZH107
ZH108
ZH109
ZH110
ZH111
ZH5
ZH6
Q406
B1DELQ000003
C446
390uF/450V
ZN403
ERZVA7D511T2
ZH15
ZH16
ZH9
ZH10
F401
T8AH 250V
F402
T8AH 250V
1mm
1mm
1mm
1mm
Z450
EYF52BCY
Z451
EYF52BCY
Z452
EYF52BCY
Z453
EYF52BCY
C404
1.0uF
ZN404
ERZVGAD681T2
Z2
K4ZZ01000206
1
D401
B0FBCT000004
4
2
3
1
RL402
TSEH8011
1
4
2
3
T401
G4D4A0000117
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
D417
RU30ALF014
ZH54
ZH55
ZH50
ZH61
S401
J0LT00000009
S402
J0LT00000009
R492
22
PR401
K5Y502BA001
ZH75
ZH73
D428
ERA15-10
D427
ERA15-10
PR402
K5202B00015
C462
1.0
C470
1.0uF
RL403
TSE10801
2
3
4
5
6
1
R406
2.2
CURR
Vcc
GND
CURR
DRIVE
COMP
MOS
DET
PFC
CAUTION
CAUTION
P-BOARD TNPA3724AB (1/6)
POWER
FACTOR
CORRECTOR
FACTOR
CORRECTOR
AC CORD
TO
COLD
HOT
COLD
HOT
COLD
HOT
COLD
HO
T
HOT
COLD
P-BOARD
(3/6)
TO
7
1
B
F
5
9
C
2
4
D
E
6
A
3
8
A
B
C
D
E
F
G
H
I
J
K
L
1
2
TH-42PV500AA/BA/EA/RA/YA
P-Board (1 of 6) Schematic Diagram
P-Board (1 of 6) Schematic Diagram
TH-42PV500AA/BA/EA/RA/YA
P-Board (1 of 6) Schematic Diagram
P-Board (1 of 6) Schematic Diagram
TH-42PV500AA / TH-42PV500BA / TH-42PV500EA / TH-42PV500RA / TH-42PV500YA
15
5.4. P-Board (2 of 6) Schematic Diagram
R681
150
150
R545
10K
D535
MA188
C605
180u/160V
D425
MA188
C624
0.01
R598
47K
R592
3000
D521
B0HAMP000067
D545
MTZJT-7722B
R632
220
IC520
C9ZB00000496
1
2
3
4
5
6
7
8
11
12
13
14
15
16
9
10
C604
180u/160V
R641
47K
R537
36K
R613
16K
J501
LSJW0001
R609
8200
8200
C547
0.033
R922
100
C530
0.033
R679
0.39
ZH83
T402
G4D1A0000098
9
10
2
6
3
5
4
D574
MA111
Q516
B1DHBD000004
R660
12K
ZH82
R596
10K
10K
C548
0.1
D542
MTZJT-7722B
ZH86
Q541
B1CBGD000001
C620
0.01
Z1
K4ZZ01000206
1
ZH80
T407
ETQ11K5AZ
6
5
2
4
1
ZH79
R579
10K
ZH60
ZH58
R547
1000
1000
C574
0.1
C646
330P
C527
4.7
T404
G4D4A0000109
9
11
13
14
1
3
2
4
15
7
8
6
5
C523
1.0
R597
47K
ZH56
D570
MA4300-M
R614
3300
C551
0.1
R607
8200
R698
0.39
C555
220u/100V
D568
MA142WA
R576
12K
C457
0.033u
D531
B0HAPR000012
R667
0
D539
B0HBRP000007
C577
33u/100V
R664
9100
Q409
B1CHND000004
R588
390
R612
2200
2200
C601
0.01
R649
22K
R624
0.22
0.22
VR352
2000
Q413
B1DEGQ000070
R567
4.7k
4.7k
R572
390
R675
2.2
C552
0.1
R528
4.7
R631
33K
R482
22
R551
100K
PR509
K5H501Z00005
IC512
C0DAEMB00004
1
3
2
R669
130K
D534
B0JBSG000026
L510
EXCELDR25C
ZH94
R584
10K
Q508
XN450100L
R562
18K
R560
13K
R561
4300
R682
2200
ZH66
ZH84
ZH85
ZH72
ZH78
L509
J0JBC0000032
R582
10K
R477
180
ZH59
C534
470P
470P
C553
0.1
ZH53
Q520
B1HFCFA00021
6
1
5
3
4
2
D551
MA4130-M
ZH57
D549
B0BA7R200003
R563
2.2
P5
K1KA11AA0194
11
GNDs
10
GNDs
9
GNDs
+12Vs
8
+12Vs
7
+12Vs
6
GND
5
+15V
4
GND
3
+12V
2
+12V
1
D544
MTZJT-7722B
R713
4700
ZH63
C643
47
R600
390
R585
33K
Q510
B1DHBD000004
R599
390
C625
10
D538
MA3051-MTX
R476
180
ZH62
R661
5K
C606
1.0
R670
1000
R655
0.39
C546
0.033
R680
0.39
0.39
R574
330
R659
30K
D569
MA4300-M
R645
47K
R662
130K
Q517
B1HFCFA00021
6
1
5
3
4
2
D529
MA3X15300L
C557
25V/1500
Q509
XN0440100L
6
1
5
3
4
2
R683
150
J502
LSJW0001
R674
33K
C451
100P
D579
MA111
C647
330P
Q408
B1CHND000004
D532
B0HAPR000012
C554
1.0
D543
MAZ41500MF
D536
B0JBSL000013
R573
390
Q527
B1DEHL000018
R531
4.7K
C550
1000P
R663
2.2
R591
1M
ZH99
C581
0.022
Q412
B1DEGQ000070
R668
0
P23
K1KA03AA0193
3
GND
2
+15V
1
+15V
ZH91
R650
10K
D528
MA3X15300L
D571
MA4300-M
R666
1000
ZH74
ZH81
D572
MA188
C528
1.0
ZH65
D423
MA188
C584
0.022
C556
1500u/16V
R676
33K
R478
22
D530
MA4100-MTA
ZH52
R593
5600
C587
0.01
0.01
P12
K1KA10AA0194
10
STB_PS
9
NC
8
STB_12V
7
GND
6
GND
5
GND
4
+15V
3
NC
2
Vdat
1
Vdat
R712
0
D588
B0HAMP000067
Vlow
Vda
11
18
13
14
17
15
16
10
12
P-BOARD TNPA3724AB (2/6)
TO
SS-BOARD
(SS12)
COLD
HOT
COLD
HOT
HOT
COLD
POWER CONTROL
ERROR DET(Vda)
P-BOARD
TO
(4/6)
(SC23)
TO
SC-BOARD
TO
(PB5)
PB-BOARD
AE
AD
AC
AB
AA
AF
AG
AH
AI
AJ
AK
AL
AM
AN
2
1
TH-42PV500AA/BA/EA/RA/YA
P-Board (2 of 6) Schematic Diagram
P-Board (2 of 6) Schematic Diagram
TH-42PV500AA/BA/EA/RA/YA
P-Board (2 of 6) Schematic Diagram
P-Board (2 of 6) Schematic Diagram
TH-42PV500AA / TH-42PV500BA / TH-42PV500EA / TH-42PV500RA / TH-42PV500YA
16
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