Panasonic TH-P50V20A Service Manual page 59

12.19. A-Board (15/22) Schematic Diagram
A-BOARD (15/22)
!
TO
TP9203
SC-BOARD P5V
(SC20)
A20 C9101 C9100
25V 10V
0.01u 10u
P5V
1
TP9081
SIU
2
TP9082
SCLK
3
SC_SIU
GND
4 SC_SCCLK
TP9083
CERS SC_CERS
5
TP9084
SC_CRC2
CRC2
6
SC_OC2
GND SC_CRC1
7
TP9085
SCNRST
OC2
8
TP9086 SC_OC1
CRC1
9 R9208
TP9087
EXB2HV470JV
SCNRST
10
TP9088
OC1
11
GND
12
TP9089
CPH1 R9198
13
TP9090
EXB28V101JX
CIS
14
TP9204
SOS6_SC1
SOS6_SC1
15 SOS7_SC2
TP9207
SOS7_SC2 SC_UHZ
16
GND
17
TP9208
UHZ
18
GND SC_CPH1
19
TP9091
SC_CIS
CEL
20 SC_CEL
TP9092
GND SC_CSH
21
SC_CSL
CSH
22 SC_CMH
GND SC_CML
23
TP9093
SC_SEL2
CSL
24
R9209
GND EXB2HV470JV
25
TP9094
CMH
26
TP9095
CML
27
P15V
NC
28
+15V
29
C9103 C9102
+15V 25V 25V
30
0.01u 10u
CML2
NC
31
TP9096
SEL2
32
TP9097
R9224 47 SC_SEL
SEL
33
TP9098
SC_CRC3
R9226 47
CRC3
34
TP9099
R9247 47 SC_CML2
GND
35
P_S0
P_S0
TO 19/22
P_S1
P_S1
127 128
P15V
C9812 C9813
25V 25V IC9801
10u 10u
C0DBAYY00462
C9811
16V
0.1u
1 BOOT 8
SS
R9015 TP9011
39
2 7
VIN
EN
P5V C9816 C9809
25V 50V
L9801 +5V R9879
G1C100MA0416 0.01u 15k 1000p
3 6
SW 1%
COMP
C9067
4 GND 5
50V
FB
1000p
R9016
2.2
R9878
10k
1%
R9014 R9877
5.6k 47k
1% 1%
SC_SIU 0V
Y8
11 GND 10
SC_SCCLK PD_SIU
Y7
A8
12 9
SC_CERS PD_SCCLK
Y6
A7
13 8
SC_CRC2 PD_CERS
Y5
14 A6 7
SC_OC2 PD_CRC2
Y4
A5
15 6
SC_CRC1 PD_OC2
Y3
16 A4 5
SCNRST PD_CRC1
Y2
A3
17 4
SC_OC1 PD_SCNRST
Y1
18 A2 3
P5V
G2 PD_OC1
A1
19 2
0V
Vcc
20 G1 1
R9400
C9400
EXB2HV103JV
16V
0.1u
BUFFER
SC_CPH1 0V
Y8
GND
11 10
SC_CIS PD_CPH1
Y7
12 A8 9
SC_CEL PD_CIS
Y6
A7
13 8
SC_CSH PD_CEL
Y5
14 A6 7
SC_CSL PD_CSH
Y4
A5
15 6
SC_CMH PD_CSL
Y3
16 A4 5
SC_CML PD_CMH
Y2
A3
17 4
SC_SEL2 PD_CML
Y1
18 A2 3
P5V
PD_SEL2
G2
A1
19 2
0V
Vcc
20 G1 1
R9401
C9401
EXB2HV103JV
16V
0.1u
BUFFER
SC_SEL
Y8
0V
GND
11 10
SC_CRC3 PD_SEL
Y7
12 A8 9
SC_CML2 Y6 PD_CRC3
A7
13 8
PD_CML2
Y5
14 A6 7
Y4
A5
15 6
Y3
16 A4 5
Y2
17 A3 4
R9402 Analog ASIC
Y1
EXB28V103JX
A2
18 3
P5V
G2
19 A1 2
Vcc
0V
G1
20 1
C9402
16V
0.1u
BUFFER
129 130
P15V
C9097 C9098 IC9803
25V 25V
10u 10u
C0DBAYY00462 C9099
16V
0.1u
1 8
BOOT
SS
R9104
39 2 VIN 7
P3.3V EN
C9107
C9104 50V
R9133
L9000 25V 2700p
12k
VJ9910 G1C100MA0416 0.01u 3 SW +3.3V 6
COMP
1%
P
4 5
C9069 GND
FB
50V
1000p
R9019
2.2
R9134
10k
1%
R9017 R9135
4.7k 27k
1%
P15V
1 PGND 20
VIN
C9804 C9805
2 19
PGND
25V 25V
VIN
10u
10u
3 PGND 18
VIN
TP9013 P1.2V
4 SW 17
L9800
NC
G1C6R8Z00010
5 16
SW
NC
C9825 6 SW 15
EN
6.3V C9800
22u 25V 0.1u 7 14 C9807
BOOT
PSET
50V 200p
8 NC 13 R9874 27k
C9803 RT 1%
C9801
25V 4700p 9 12 R9872 3.3k 25V 6800p
SS/DELAY
FC 1%
10 GND 11
FB
C9806
+1.2V
50V 100p
R9873 R9875
10k 20k
1%
1%
P3.3V
R9203
2.7k
SG-P3.3V_DET
C9052
16V
0.1u
P5V
R9205
SOS_DCC
33k
C9040
R9206
TO 14/22 16V
SOS6_SC1 56k
0.1u
SOS7_SC2
SOS8_SS
TO 14/22 TO 14/22
SC_UHZ D_UHZ
131 132
59
TO 20/22
R9107
3.3k
P3.3V
R9038
100k
Q9006
R9036 DSC200100L
10k
Q9005
DSC200100L
R9037
47k
R9110
0
D_XRST_SYS
D9807
R9040
B0ADCJ000100
4.7k
R9039
47k
OHZ1
TO 6,14,16/22
PG-P5V_DET TO 6,14/22
133 134
11
12
135