14.11. P-Board Block Diagram (42inch)
+
-
+
-
+
D509
X501
4NHz
R661
1
2
3
R665
1
2
3
Q408
Q412
D417
D420
D419
C469
R671
C555
R443
1
2
3
D529
D528
D404
D596
D416
D435
D401
D430
D563
D511
D505
R628
Q527
D530
Q413
Q409
D520
D521
D535
1
2
IC408
4
2
1
3
1
3
4
2
1
3
4
2
IC404
IC403
9
2
3
17
8
10
13
1
T401
5
8
7
6
VCC
MOS
DRIVE
CURR
DET
CURR
COMP
2
1
3
4
Q407
Q420
Q404
Q406
R406
D415
IC406
POWER
FACTOR
CORRECTOR
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
STB 5
ON/OFF
LOW 15
AC GOOD
F STB ON
V LOW DET
AC P DET
TV ON/OFF
VSUS DET
F_STB ON/OFF
PS SOS
PFC ON/OFF
V LOW ON/OFF
IC501
1
2
IC502
RESET
1
5
2
4
6
3
2
1
4
Vda
P12
+15V
+15Vc
TO
1
2
6
PA5
P5
4
7
8
1
+15V
2
+15V
P23
TO
SC23
9
+5Vc
TO
STBY5V
7
P25
D25
+5Vc
10
Q421
POWER MCU
COLD
COLD
HOT
10
STB_PS
Q422
Vda75V
8
STB12V
Q509
16
17
15
18
2
+15Vc
1
3
HOT
POWER SUPPLY
4
Vda
Q508
14
13
PR601
9
6
5
4
3
5
ZCD
7
GD
8
VCC
1
3
VFF
4
CS
INV
IC509
13
14
12
MAIN RELAY
RUSH RELAY
VSUS
ON/OFF
ALL OFF
11
Q559
13
F_STBY_ON
ALL_OFF
PS_SOS
PANEL_MAIN_ON
ECO_ON
F STB 14V
2
1
3
F STB 14V
F STB 14V
P10
TO
PA10
IC520
PR401
F401
F402
1
4
NEUTRAL
RL402
RL403
4
2
4
2
IC412
3
1
1
3
5
16
13
10
17
9
7
SS12
TO
T601
T410
T404
D539
LIVE
P9
2
POWER
COLD
HOT
AC CORD
TO
PFC DET
STB5V DET
VlOW DET
VlOW DET
Vsus 189V
Vlow
Vlow
Vsus POWER CURCUIT
OSC
395V
R496
R495
R494
Q418
R497
(350V
40V)
PFC OUT
Q501
Q502
Q551
Q505
ERROR DET
IC506
ON:L
H:ON
2
Vda
73V
D569
D570
D571
R670
Q541
R650
R649
5V OUT
DETECTION
COUPLER
PHOTO
IC405
COUPLER
PHOTO
CONTROL
D579
R579
D549
R666
D551
R545
3
4
1
2
IC505
IC401
COUPLER
PHOTO
COUPLER
DC-DC
CONVERTER
Csus
R533
(3V
1.0V)
178V
(1.7A)
R526
R527
H:ON
OVER
VOLTAGE
PROTECTION
(490V
80V)
COUPLER
PHOTO
COUPLER
PHOTO
PHOTO
OVER
VOLTAGE
DETECTION
(490V
80V)
DETECTION
15V OVER
VOLTAGE
(16V
2V)
PROTECTION
COUPLER
PHOTO
SC2
TO
GND
1
3
TO
1
Vsus
P11
P2
Vsus
SS11
3
PFC
R444
R475
R441
R442
D441
4
R620
R589
R590
R621
D574
OSC
L405
L404
R413
L410
R407
R427
R435
Q434
IC409
(IPD)
DC POWER CONTROL
8
Source
Source
7
1
Vdd
2
FB
Drain
5
4
Vcs
7
14
12
4
16
R472
R473
R465
R464
D418
C446,
C447
Q402
L403
Q401
D407
R455
1
3
2
PFC DET
AC POWER
RESET
Q568
3
1
2
ECO
STB_PS(12V)
R410
PHOTO
4
2
1
3
IC410
COUPLER
7
12
11
3
2
1
IC504
14
15
Q563
Q521
Q569
Q537
Q512
Q561
AC_GOOD
19
1
S
2
S
G
3
4
S
8
7
5
6
D
D
D
D
6
4
S
8
5
S
3
D
D
D
7
G
1
2
S
D
Q555
Q556
DC/DC CONV.
DC/DC CONV.
Q558
Q557
Q525,Q530
R534
D585
Q524
OUT
2
1
Vcc
PR805
ERROR DET
(Vda)
IC512
D542
D544
D545
SWITCHING
IC510
REGULATOR
D513
D512
Q566
13
15
4
6
12
16
2
PHOTO
COUPLER
3
4
1
2
IC507
D514
3
1
2
(Vsus)
K
A
Vsus
R622
R648
R636
R626
R656
R627
OUT
DETECTION
(60V
40V)
VOLTAGE
Q507
2
4
3
5
9
10
6
T402
Q538
R631
R674
R676
3
1
2
K
A
D572
POWER
CIRCUIT
Q510
Q564
Q565
Q540
F 5A 250V
OSC
OSC
9
D531
15
7
D586
4
6
5
D531
D536
RUSH
ON
Q553
Q554
PR509
Vdat OVER VOLTAGE
DETECTION(100V
25V)
Q520
Q517
+15Vc
+15Vc
+15Vs(S)
+15Vs(W)
+15Vs(W)
+15Vc
P
ERROR DET
IC411
ERROR DET
IC402
ERROR DET
SW
SW
RECTIFIER
SW
L:ON
RECTIFIER
STANDBY POWER SAVE
5V
(Vlow)
R458
MAIN
ON
12V
BUFF
INV.
ECO ON/OFF
SW
BUFF
STB5V ON/OFF
STB5V
(15V)
(F STB 14V)
INV.
INV.
ECO ON
VSUS DET
INV.
INV.
VSUS ON/OFF
12V ON/OFF
INV.
BUFF
BUFF
BUFF
BUFF
VSUS DET
D602
12V DET
SW
T407
1
15V
GND
POWER SOS
LED BLINKING : 4TIMES
TH-42PX60U
P-Board Block Diagram
TH-42PX60U
P-Board Block Diagram
TH-37PX60U / TH-42PX60U
85
Summary of Contents for TH-37PX60U
Page 18: ...7 Location of Lead Wiring 7 1 Lead of Wiring 1 18 TH 37PX60U TH 42PX60U ...
Page 19: ...7 2 Lead of Wiring 2 19 TH 37PX60U TH 42PX60U ...
Page 20: ...7 3 Lead of Wiring 3 20 TH 37PX60U TH 42PX60U ...
Page 21: ...7 4 Lead of Wiring 4 21 TH 37PX60U TH 42PX60U ...
Page 22: ...7 5 Lead of Wiring 5 22 TH 37PX60U TH 42PX60U ...
Page 23: ...7 6 Lead of Wiring 6 23 TH 37PX60U TH 42PX60U ...
Page 24: ...7 7 Lead of Wiring 7 24 TH 37PX60U TH 42PX60U ...
Page 25: ...7 8 Lead of Wiring 8 25 TH 37PX60U TH 42PX60U ...
Page 30: ...8 4 No Picture 30 TH 37PX60U TH 42PX60U ...
Page 37: ...10 4 Adjustment Volume Location 10 5 Test Point Location 37 TH 37PX60U TH 42PX60U ...
Page 39: ...39 TH 37PX60U TH 42PX60U ...
Page 74: ...TH 37PX60U TH 42PX60U 74 ...
Page 75: ...14 Schematic and Block Diagram 14 1 Schematic Diagram Notes TH 37PX60U TH 42PX60U 75 ...
Page 152: ...15 2 Packing Exploded Views 152 TH 37PX60U TH 42PX60U ...