P-Board Block Diagram - Panasonic TH-50PX60U Service Manual

14.3. P-Board Block Diagram

AC IN
RF101 3A
P
100-120V
50/60Hz
POWER SUPPLY
P9
K101 K102
L101 L102
LIVE 4
F101
NEUTRAL 1
F102
BIAS_G
8 7 6
RELAY RELAY BIAS-PFC
RUSH MAIN (VCC-OUT)
RECTIFIER
D501
(STB) VCC-IN
GND
AC+
1 4
BIAS
AC-
PG-
STB
D503
D502
5
Q501
Q502
PG
D508 L502
D505
F501
D506
IC501
5
D511
4
3 4 5 7 6
AC_L AC_N DISCHG CONTROL VBias
MC601
POWER CONTROL
MODULE
<Exchange board only>
TH-50PX60U
P-Board Block Diagram
D104
L103
MC101
F201
RECTIFIER&PFC
1 12 9 6 15 14
D3 D2 D1 A K
3
AC- DC(+)
PFC
2
AC- DC(-)
S3 G3 S2 G2 S1 G1
4 11 13 8 10 5 7
PG
10 16 3 5
VCC IDET VDET VFB
VIN-
9 VC 6
IC101
4
OVP
POWER FACTOR
Q103
CORRECTOR 8
OUT
Q104
7
GND 9
ON/OFF 12
I+
<Exchange board only>
12
BIAS
13 ON/OFF
14 15
PFC-15V PFC-SUS
ON/OFF
Q106
3
PFC
MC502
SUS
11
RELAY/ ON/OFF
PFC CONTROL
BIAS
MODULE 2
ON/OFF
<Exchange board only>
15V-ON/OFF
13 12
F301
Q301
Q302
R307 R306 R305
10 14 11 13 1 2 6 9 12
Fsw-ON ON/OFF GH SH GL I+ BIAS
MC301
Vda/STB POWER CONTROL MODULE
V+ VCC OV
<Exchange board only>
22 25 23
T501
S2A
B1
D551
S2B
BIAS GND
VR351
B2 Vda
P2 S1B
P1
S1A
B3
12
B4
PG_STB
2 16 20 17 19 18
GND GND_S- GND_OVP Vo_S+ Vo_WP AC DET
HOT COLD
D251
P1
S1
P2 S2
D253
MC202
D G S D G S
Vsus
4 6 5 1 3 2
POWER SUPPLY
<Exchange board only>
PG
1 2 6 5 10 14
VDD
SL
GH SH GL
IC
MC201
Vsus
POWER SUPPLY
<Exchange board only>
PC505
PC506
PFC_ON/OFF
4 1
PC503 Q553
R305
3 2
BIAS_ON/OFF
SW
T301
Q401
P1 S1
D402
Vda_ON
Q402
S2
BIAS Q403
D403
P2
Q351
S6
15V_ON
D355
Q353
B3
ZD351
S4A
Q352
S4B
D352
S5
F15V_ON
Q354
HOT COLD
ZD353
9 18 6 20 25 13 16
AC_DET
MC701
P07 AD1 P03 P14 P06 P12 P30
POWER MCU MODULE
<exchange board only>
73
Vsus 180V
VR251
D255
VSUS R258
R259
R253
R254 R260
R261
R255
D254
D252
23 25 24 22
OV VCC STOP V+
SW
Q405 Q406
SW
Q404
L401
ZD407
VR401
Vda
ZD405
ZD406
ZD408
IC401
Vda DET
5V_ON
Q552
D555
Q551
STB-
ON/OFF
D554
D556
26 2 21 1 7 19 22 5 17 14 24 3 10 8
P05 P02 AD0 P04 AD2 P11 AD4 P20 P10 P13 AD5 P01 P21 P22
POWER MCU
TH-50PX60U
P-Board Block Diagram
TH-50PX60U
P2
TO SC2
1 VSUS
3 GND
P11
TO SS11
1 VSUS
3 GND
P23 TO SC23
1 15Vd
2 15Vd
P5
TO PA5
6 15Vs
7 15Vs
8
15Vs
1 15Vc
2 15Vc
4
15Vc
P12
TO SS12
1 VDA
2 VDA
4
15Vd
SW_MAIN
8
10
STB_PS
MAIN
SW
P25
TO D25
9
+5VC
7 +5VC
10 STB5V
1
15Vc
2 15Vc
ALL_OFF
18
H=SOS
16
PS_SOS
L=OK
17 PANEL_ON
F_STB_ON
13
20 Vda_Low(Vda_DET)
P10 TO PA10
1
F_STB_15V
2 F_STB_15V
3 F_STB_15V
4 15
P00 P31