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Monitor
TH42PS9UK - 42" PLASMA TV
Service manual
P-Board Block Diagram - Panasonic TH-42PS9UK Service Manual
Progressive wide plasma display
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Also See for TH-42PS9UK
:
Operating instructions manual
(100 pages)
,
Operating instructions manual
(52 pages)
,
Manual de instrucciones
(50 pages)
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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15.3. P-Board Block Diagram
P
POWER SUPPLY
L404
L405
D401
RECTIFIER
-
+
L403
TO
AC CORD
P9
F401
LIVE
4
F402
NEUTRAL
1
R413
Q434
L410
R435
R427
R407
D404
-
+
D435
RECTIFIER
IC409
DC POWER CONTROL
D596
8
Source
Vdd
7
Source
FB
5
Drain
Vcs
D416
STANDBY POWER SAVE
TH-42PS9UK
P-Board Block Diagram
D417
T401
D419
395V
D420
1
2
3
4
7
8
9
10
Q404
Q406
R406
17
16
14
13
12
R472
D415
R473
R465
SW
R464
Q401
R441
8
7
6
5
D418
IC406
VCC
R442
CURR
MOS
DRIVE
DET
R458
SW
POWER
Q402
R475
FACTOR
CURR
CORRECTOR
COMP
1
2
3
4
D407
Q420
Q422
Q407
R444
1
R455
R443
2
HOT
R497
PFC
Q418
Q421
3
PFC DET
IC411
R496 R495 R494
PFC OUT
DETECTION
SW
(350V
40V)
ERROR DET
Q568
L:ON
IC402
3
3
ERROR DET
1
2
1
2
RL403
R410
3
4
D430
2
1
MAIN
IC410
ON
Q501
RL402
PHOTO
COUPLER
Q502
RUSH
ON
T410
15
9
17
12V
D511
16
D563
7
14
STB5V
5
13
4
12
D509
(IPD)
IC504
11
D441
7
10
2
ERROR DET
1
5V
3
2
4
2
1
4
1
IC408
PHOTO
COUPLER
3
2
STB_PS(12V)
4
1
IC405
PHOTO
3
2
COUPLER
ECO
4
1
IC412
PHOTO
3
2
COUPLER
HOT
COLD
HOT
COLD
T404
D539
14
PR401
F 5A 250V
9
13
Q412
1
OSC
3
C446,
2
C447
Q408
OSC
7
15
OVER
Q413
VOLTAGE
OSC
PROTECTION
D531
5
(490V
80V)
6
Q409
4
OSC
R666
1
2
5
6
9
10
C469
D551
T402
4
3
2
T407
R545
15V OVER
6
5
4
VOLTAGE
PROTECTION
(16V
2V)
D528
D574
12
D529
D530
13
6
IC520
15
4
SW
16
2
POWER
Q540
CONTROL
(Vlow)
12V DET
Q566
D602
COLD
Q538
D514
VSUS DET
178V
4
1
IC505
PFC DET
(1.7A)
1
4
IC404
PHOTO
3
2
COUPLER
PHOTO
2
3
COUPLER
AC POWER
Vsus POWER CURCUIT
1
4
Q507
IC403
PHOTO
2
3
COUPLER
T601
9
6
8
7
5
VCC
GD
ZCD
RESET
5
4
3
INV
VFF
CS
4
1
IC401
1
3
4
PHOTO
3
2
COUPLER
IC509
R671
Csus
DC-DC
CONVERTER
Q551
1
VDD
AC GOOD
24
D505
2
VSS
F STB ON
23
2
IC502
3
XIN
V LOW DET
22
1
4
XOUT
AC P DET
21
RESET
X501
4NHz
TV ON/OFF
20
6
RESET
VSUS DET
19
Q535
7
STB PS
F_STB ON/OFF
18
STB5V DET
8
17
PFC DET
PS SOS
ON:L
STB 5
9
PFC ON/OFF
16
ON/OFF
10
LOW 15
V LOW ON/OFF
15
VSUS
11
14
MAIN RELAY
ON/OFF
12
RUSH RELAY
ALL OFF
13
INV.
BUFF
Q569
IC501
POWER SOS
POWER MCU
LED BLINKING : 4TIMES
BUFF
Q521
Q563
Q537
STB5V ON/OFF
SW
INV.
Q512
Q561
ECO ON/OFF
63
IC512
Vdat OVER VOLTAGE
DETECTION(100V
25V)
ERROR DET
Q527
(Vda)
Vda70V
D531
D542
D544
D545
73V
K
3
1
C555
R670
A
R676
2
D569
1
R674
D586
R665
2
Vda
D570
R631
3
D536
15V
Q520
Q517
D571
D572
D549
R579
D579
Q509
VlOW DET
D520
1
R661
2
BUFF
Vlow
BUFF
Q510
3
Q541
BUFF
Q564
R649
BUFF
Q565
R650
Vlow
Q508
POWER
VlOW DET
CIRCUIT
5V OUT
DETECTION
(3V
1.0V)
PR601
Vsus 175V
R620
VOLTAGE
R526
R622
OVER
OUT
VOLTAGE
DETECTION
R648
DETECTION
R589
(60V
40V)
R527
(490V
80V)
R636
R590
R626
R621
R533
Q505
R656
R534
K
1
3
R627
D585
IC506
4
1
A
2
IC507
ERROR DET
R628
PHOTO
(Vsus)
3
2
Vsus
COUPLER
Q554
VSUS ON/OFF
12V ON/OFF
D521
INV.
Q559
PR509
VSUS DET
Q553
Q525,Q530
INV.
INV.
Q524
D512
D513
ECO ON
INV.
Q558
Q557
IC510
D535
PR505
2
OUT
Vcc
1
SWITCHING
REGULATOR
5
6
7
8
5
6
7
8
Q556
Q555
D
D
D
D
D
D
D
D
DC/DC CONV.
DC/DC CONV.
G
S
S
S
G
S
S
S
(15V)
(F STB 14V)
4
3
2
1
4
3
2
1
TH-42PS9UK
P-Board Block Diagram
TH-42PS9UK
TO
P12
SS12
1
Vda
2
Vda
4
+15V
8
STB12V
10
STB_PS
TO
P23
SC23
1
+15V
2
+15V
TO
P5
J4
1
+15Vc
2
+15Vc
4
+15Vc
6
+15Vs(S)
7
+15Vs(W)
8
+15Vs(W)
TO
P11
SS11
1
Vsus
3
GND
TO
P2
SC2
1
Vsus
3
GND
TO
P25
D25
1
+15Vc
2
+15Vc
7
+5Vc
9
+5Vc
STBY5V
10
H:ON
13
F_STBY_ON
H:ON
ECO_ON
15
17
PANEL_MAIN_ON
16
PS_SOS
18
ALL_OFF
19
AC_GOOD
TO
P10
J10
1
F STB 14V
2
F STB 14V
3
F STB 14V
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