Table of Contents
Advertisement
TH-37PHD8GK / TH-37PHD8GS / TH-37PHD8UK / TH-42PHD8GK / TH-42PHD8GS / TH-42PHD8UK
16.4. P-Board Block Diagram (37inch)
P POWER SUPPLY
TO
AC CORD
P9
F402
L404
L405
LIVE
4
F401
NEWTRAL
1
D401
-
+
D404
-
+
D462
R903-R906
Q423
R928-R931
Q424,Q434.Q436
Q435
R455,R474
R479,R481
R483,R488
Q433,Q441
Q430,Q432
Q414
TH-37PHD8GK/GS/UK
P-Board Block Diagram
D417
D419
D420
10
9
8
4
3
2
T401
Q404
Q406
L402
14
16
D415
Q401
8
7
6
5
VCC
IC406
MOS
CURR
DRIVE
DET
POWER
CURR
FACTOR
COMP
CONTROL
1
2
3
4
Q420
Q422
Q407
L403
Q418
Q421
R443
PFC DET
PFC
IC402
COMPARATOR(PFC)
5
1
4
3
Q417
Q4O3
5
1
4
3
RL403
IC411
RL402
COMPARATOR(AC IN)
MAIN ON/OFF
RUSH ON/OFF
T410
15
9
PR501
16
18
D511
Q511
Q512
D509
IC407
Q431
6
14
Q439
POWER SUPPLY
13
3
D510
1
2
10
D444
3
2
1
VIN
Isen
EXT
CE/SS
CLK
FB
VSS
IC504
4
1
4
5
7
8
IC408
ERROR DET
3
2
2
REG
1
Q440
4
1
Q415
Q438
IC412
3
2
4
1
IC409
3
2
HOT
COLD
HOT
COLD
13
14
PR401
T404
D531
395V
1
Q412
9
3
OSC
2
Q408
4
15
7
8
11
6
PR402
Q413
5
OSC
Q409
2
1
10
9
6
5
T402
C405
2
3
4
T407
6
5
4
D568
D530
16
15
13
12
IC520
BUFFER
2
4
6
HOT
COLD
1
4
IC404
2
3
Vsus POWER CURCIUT
IC509
1
4
Q507
IC403
Q506
DC-DC CONVERTER
2
3
6
9
8
7
5
VCC
GD
ZCD
5
4
INV
VFF
CB
4
1
1
3
4
IC401
3
2
IC505
4
R671
Vsus
3
IC501
POWER MCU
D567
1
VDD
ECO ON/OFF
24
2
23
VSS
F STB ON/OFF
3
IC502
3
XIN
V LOW DET
22
1
4
XOUT
AC P DET
21
RESET
X501
4NHz
20
TV ON/OFF
6
RESET
VSUS DET
19
D555
Q535
7
STB PS
STB ON/OFF
18
STB5V DET
8
PFC DET
PS SOS
17
Q501
F STB PC
9
PFC ON/OFF
16
ON/OFF
10
DISCHARGE
V LOW ON/OFF
15
Q550
INV.
INV.
VSUS
Q551
11
MAIN RELAY
14
ON/OFF
Q502
Q503
12
13
RUSH RELAY
ALL OFF
INV.
Q560
SW
Q565
Q567
Q564
Q562
INV.
98
D539
Q527
D532
D542
D544
D545
2
1
D534
D536
IC512
3
ERROR DET
1
(Vda)
R665
2
Vda
3
DC15V
D535
PR509
DC12V
D521
Q516
Q510
1
Q509
R661
2
Vlow
VlOW DET
Q541
3
Q520,Q517
Q508
VlOW DET
Vlow POWER CURCIUT
PR601
Vsus 188V
T601
IC506
Q505
ERROR DET(Vsus)
3
3
1
REG
R628
Vsus
1
Q530
Q536
Vsus DET
SW
Q525
2
Q552
INV.
Q561
STB 5V
INV.
Q537
Q538
SW
STB 5V
Q559
INV.
Q557
INV.
Q544
IC507
PR503
ALLOFF SW
Q554
1
REG
5
Q553
+5V REG
F STB 14V
F STB 14V
Q518
Q519
SW
Q558
SW
IC503
2
1
ERROR DET
TO
P12
SS12
Vda 75V
1
Vda
2
+15V
5
STB12V
4
STB_PS
TO
P23
SC23
1
+15V
2
+15V
TO
P11
SS11
2
Vsus
3
Vsus
TO
P2
SC2
1
Vsus
2
Vsus
TO
P5
J4
1
+12V
2
+12V
4
+15V
6
+12Vs
7
+12Vs
8
+12Vs
TO
P30
PB30
1
+15V
4
+5V
5
FAN CONT
3
FAN SOS
TO
P25
D25
1
12V
2
12V
3
FAN CONT
+5V
7
9
+5V
10
STB5V
13
F STBY ON
14
FAN SOS
ECO_ON
15
17
PANEL MAIN ON
16
PS SOS
18
ALL OFF
TO
P10
J10
1
F STB 14V
2
F STB 14V
3
F STB 14V
TH-37PHD8GK/GS/UK
P-Board Block Diagram
Hide quick links:
Advertisement
Table of Contents
