Panasonic TH-42PH9WK Service Manual page 63

14.3. P-Board Block Diagram
P POWER SUPPLY
L404 L405
RECTIFIER
D401
- +
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
5 Drain Vcs
D416
STANDBY POWER SAVE
TH-42PH9WK/WS
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
Q401
R441
8 7 6 5 D418
IC406 VCC
R442
CURR
MOS
DRIVE DET R458
SW
POWER
Q402 R475
FACTOR
CURR
COMP
CORRECTOR
1 2 3 4
D407 Q420 Q422
Q407
R444
1
R455
R443
2
R497
PFC
Q418 Q421
3
PFC DET
IC411 R496 R495 R494
PFC OUT
DETECTION
SW ERROR DET (350V 40V)
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
Q502
COUPLER
RUSH
ON
T410
15
9 17 12V
D511
16
D563
7
14
STB5V
5 13
4 12
D509
(IPD)
IC504
D441 7 11
2 10 ERROR DET
1
5V
3
FB 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
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
1 2
5 6 9 10
C469
R464
T402
4 3 2
T407
15V OVER
6 5 4
VOLTAGE
PROTECTION
(16V 2V)
D528
12 D529
D530
13 6
IC520
15 4
SW
16 2
POWER
Q540
CONTROL
(Vlow)
12V DET
Q566
D602
HOT COLD Q538
D514
VSUS DET
178V 4 1
PFC DET (1.7A) IC505
1 4
IC404
PHOTO
3 2 COUPLER
PHOTO
2 3
COUPLER
AC POWER
Vsus POWER CURCUIT
1 4
IC403 Q507
PHOTO
2 3
COUPLER
9 6
8 7 5
VCC GD ZCD
RESET 5
INV VFF CS
4 1
IC401
1 3 4
PHOTO
3 2
COUPLER
IC509
R671
Csus
DC-DC
CONVERTER
1 VDD AC GOOD 24
D505
2 23
VSS F STB ON
2
3 22
IC502 XIN V LOW DET
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 PFC DET PS SOS 17
ON:L
STB 5
9 16
PFC ON/OFF
ON/OFF
10 LOW 15 V LOW ON/OFF 15
VSUS
11 MAIN RELAY 14
ON/OFF
12 RUSH RELAY ALL OFF 13
BUFF
Q569
IC501
POWER SOS
LED BLINKING : 4TIMES
POWER MCU
BUFF
Q521 Q563
Q537
STB5V ON/OFF
SW INV.
Q512 Q561
ECO ON/OFF
63
IC512
Vdat OVER VOLTAGE
DETECTION(100V 25V) ERROR DET
D539
Q527 (Vda)
D531
D542 D544 D545
73V K
3 1
C555
R670
A
R676 2
D569
R674
D586 R665
Vda
D570
R631
D536
15V
Q520 Q517
D571
D572
R666
D549
D551
R579
R545
D579
D574
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 189V
R620
VOLTAGE R622
R526
OVER
OUT
T601
VOLTAGE
DETECTION
R648
DETECTION R589
(60V 40V)
(490V 80V) R527
R636
R590
4 3
R626
R621
R533
Q505
R656
R534
K
1
3
R627
D585
IC506
A
4 1
2
IC507
ERROR DET
R628
PHOTO
(Vsus)
3 2 Vsus
COUPLER
Q551 Q554
VSUS ON/OFF
12V ON/OFF
D521
INV.
Q559
PR509
VSUS DET
Q553
Q525,Q530 INV.
INV.
Q524
D512
D513
INV. ECO ON
Q558
Q557
INV.
D535
IC510
PR505
2 1
OUT Vcc
SWITCHING
REGULATOR
5 6 7 8 5 6 7
Q555 Q556
D D D D D D D
DC/DC CONV. DC/DC CONV.
G S S S G S S
(15V) (F STB 14V)
4 3 2 1 4 3 2
TH-42PH9WK / TH-42PH9WS
Vda75V
TO
P12
SS12
1
Vda
2
Vda
4 +15V
1
8 STB12V
2
10 STB_PS
3
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
15 ECO_ON
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
8
D
S
1
TH-42PH9WK/WS
P-Board Block Diagram