P-Board Block Diagram - Panasonic TH-50PC77U Service Manual

15.3. P-Board Block Diagram

AC IN
RF601 3A
P
100-120V
50/60Hz
POWER SUPPLY
P9 K601 K602
L601 L602
1
LIVE 3
+
F601 2
3
NEUTRAL
1
F602 4
-
7
6
11
BIAS_G
270k
x8
9 8
PFC MULTI
PFC MULTI ON
6
SUS
SUS
ON
7
3
BIAS
OUT
5
BIAS IN ON/OFF
1
MC502
PFC/BIAS CONTROL MODULE
<Exchange board only>
14 12 1
VDD GH
BIAS
GH
VDD
MC301 Vda POWER CONTROL MODULE
<Exchange board only>
D505
D501
RECTIFIER
F501
(STB)
AC+
D504
AC-
PG-
STB
D502
D503
IC501
IPD
5
Q501
D506
4
PG
7
3 4 5 7 6
AC_L AC_L AC_N DISCHG CONTROL VBias
POWER CONTROL
MC501
MODULE
<Exchange board only>
TH-50PX77U/PE77U
P-Board Block Diagram
MC602 D605 F201 MC202
L603
Vsus
RECTIFIER
POWER CONTROL 2
2 5 8 10 12 11 <Exchange board only>
5
D1 D2 D3 A K
+
6
AC+ AC+
PFC
7
AC AC- AC- AC
- 8
S1 G1 S2 G2 S3 G3
<Exchange
3 1 6 4 9 7
MC603
board only>
PG PFC MODULE
<Exchange
board only>
4 3
OCL GND_OCL
(IDET)
VIN
1
S+
(VDET)
AC_ON GATE 2
(PFC_ON)
Q602
MC601
VCC 10 BIAS
Q603 12
GND
PFC MODULE
<Exchange board only>
MC201
F301
PC302
MULTI_ON/OFF
PC301
PFC_ON/OFF
Q301
T301
P1 S1
RECTIFIER
2 7 8 Q302
SH Vref PC
SH Vref IRS
BIAS
GL
GL 6
P2
I+
I+ 9
ON/OFF
13
S6
S3
S4A
PC501 S4B
D353
BIAS1 ON
B1 S5
L502 T501
HOT COLD
PC502
BIAS GND
STB5V
Q701
B2
Q702
P2
P1
S2B
B3
D551
S2A
D702
IC551
VDD
STB5V DET
32
STB_IN
(VDD)
27
BIAS1 ON
S1A
B4
21 AC_DET
PG_STB S1B
2 20 19 18
GND GND Vo AC DET
33
HOT COLD
D
4 T201
P1A S1A
G
1 2 6
GH_IN GATE_H
S
3 5
SOURCE_H
VDD P2A
7 D
1
GL_IN
G
8 9 3
GATE_L S2A
S
10 2
SOURCE_L
MC203
Vsus POWER SUPPLY
PG
<Exchange board only>
1 14 6 2 5 9 7
GH VDD GL SH SL I+ Vref PC
8
GH VDD GL SH P I+ Vref IRS
GND
ON/OFF
13
Vsus POWER CONTROL 1
<Exchange board only>
VR351
PFC
11
VCC1
MC401
Vda CONTROL MODULE
<exchange board only>
IC351
14 13 4 6 8 5
PC401
Vout
ON/OFF
Vda_ON/OFF
Q401
D401
ZD403
AC+
L401 D402
MC351
15V/FV ON/OFF
AC-
<exchange
board only>
D352
D351
IC451
L451
1 2
5 3 4
Q451
22 23 8 28 29 16 12 15 14
VDD
P07 P01 P06 P05 P34 P00 P22 P13 P30 P12 P11
MC701
POWER MCU MODULE
59
Vsus 180V
VR251
AC+
VSUS
R256
R257
R280
D251
R285
RECTIFIER
IC251
VSUS DET
AC-
D252
PC201
SUS STOP
PC202
SUS ON
10
VCC2
Q402 Q403
9 12
VR401
Vda
IC401
L402
ZD404 ZD405
VCC
1
2
4 6 7 5 8 9
Q351
15Vc ON/OFF
Q352
FV ON/OFF
Q551
Q704
13 9 6 10 7 30 5 1 11 19 3 31
VDD VDD
P10 P33 P36 P32 P35 P21 P40 P45 P31 P16 P42 P20
POWER MCU
<exchange board only>
TH-50PX77U/PE77U
P-Board Block Diagram
TH-50PX77U / TH-50PE77U
P2 TO SC2
1 VSUS
3 GND
P11 TO SS11
1 VSUS
3 GND
P23 NO USE
1 15Vd
2 15Vd
P6 TO A6
2
15Vs
3 15Vs
4 15Vs
7
FVc
8 FVc
9 FVc
P7 TO A7
1
15Vs
2 15Vs
5 STBY5V
6
F_STBY_ON
7 ECO_ON
8 ALL_OFF
9
STBY5V_SW
10 5Vc
P12 TO SS12
1 VDA
2 VDA
4
15Vd
MAIN_SW
8
10
STB_PS
MAIN
SW
P25 TO D25
5
+5VC
6 +5VC
9 STBY5V
1 15Vc
2 15Vc
11
PANEL_ON
H=SOS
12 PS_SOS
L=OK
13 Vda_Low(Vda_DET)
4 20 18
VDD
P41 P17 P15