Panasonic TH-42PX80U Service Manual page 57

11.21. A-Board (12/15) Schematic Diagram
! A-BOARD TNPH0716S (12/15)
PANEL_MAIN_ON
PANEL_MAIN_ON
SOS4_PS
SOS4_PS
VDATA_DET
VDATA_DET
TO
SC-BOARD
P5V
(SC20)
A20 C9832
C9840
10V
25V
0.01u 10u
P5V
1
OC1
2
CPH2
3
GND
4
SC_OC1
CLK SC_CPH2
5
SC_CLK
SIU
6
SC_SIU
GND SC_SID
7
SC_SCSU
SID
8
SC_OC2
SCSU SC_CPH1
9
GND R9848
10
EXB2HV470JV
OC2
11
CPH1
12
GND
13
LAT
14 R9110
100 SOS6_SC1
SOS6_SC1
15
SOS7_SC2
SOS7_SC2
16
R9142
100
GND
17
CEL
18 SC_LAT
CERS SC_CEL
19
SC_CBK
20 SC_DRV_RST
GND SC_CSL
21
SC_CSH
CSL
22 SC_CML
CSH SC_CMH
23
GND R9849
24 EXB2HV470JV
CML
25
CMH
26
NC
27
+15V
28
P15V_MOTO
+15V
29 PA9900
K5H5022A0023
+15V
30 C9859 C9858
25V 25V
10u
0.01u
TH-42PX80U
A-Board (12/15) Schematic Diagram
100 101
C9880
25V
8200p
R9890
47.5k
R9891 C9877
12.7k 50V
68p
R9886
47k
R9888
15k
R9878
R9887 15k
51k
R9889
18.2k
C9888
R9879 C9879
50V
13k 360p
16V
0.015u
C9878
25V
0.01u
SC_OC1
Y8
GND
11 10
SC_CPH2 FP_OC1
Y7
12 A8 9
SC_CLK Y6 FP_CPH2
A7
13 8
SC_SIU FP_CLK
Y5
14 A6 7
SC_SID Y4 FP_SIU
A5
15 6
SC_SCSU FP_SID
Y3
16 A4 5
SC_OC2 Y2 FP_SCSU
A3
17 4
SC_CPH1 FP_OC2
Y1
18 A2 3
P5V
G2 FP_CPH1
A1
19 2
Vcc
20 G1 1
C9841
16V
0.1u
SC_LAT
Y8
GND
11 10
SC_CEL FP_LAT
Y7
12 A8 9
SC_CBK FP_CEL
Y6
A7
13 8
SC_DRV_RST FP_CBK
Y5
14 A6 7
SC_CSL FP_SC_DRV_RST
Y4
A5
15 6
SC_CSH FP_CSL
Y3
16 A4 5
SC_CML FP_CSH
Y2
A3
17 4
SC_CMH FP_CML
Y1
18 A2 3
P5V
FP_CMH
G2
A1
19 2
Vcc
20 G1 1
C9842
16V
0.1u
102 103
P15V
P
C9867 C9870
R9856
25V 25V
VJUMP2012-P
10u 10u
R9895
100k
C9861
25V
1 30 C9885
RT OVP
50V 0.1u
1000p
2 29
CS1 CUVP
3 28 L9800
VO1 PGOOD
G1C2R2Z00007
4 27
P
FB1 CB1
R9851
C9865 VJUMP2012-P
5 26
REFIN1 OUT1-1 4V
68u
6 25 Q9807
ILIM1 LX1
B1MBDDA00003
7 24
-INC1 OUT1-2
8 23
C9886
-INC2 VCC
25V
0.1u
9 22
ILIM2 PGND
10 21
FSW VB
C9873
4V
11 20
FB2 OUT2-2 68u
12 19
VO2 LX2
P
L9801
R9852
13 18 G1C1R5Z00006
CS2 OUT2-1 VJUMP2012-P
14 17
GND CB2
15 16
VREF CTL
Q9808
C9862 B1MBDDA00015
25V
0.1u
C9860
6.3V
4.7u
C9868 C9871
25V 25V
10u 10u
C9874
50V
68p
1 24
GND FB
C9881 2 23
REFIN VO
25V
0.01u
3 22
C9864
VREF RT
VB1_5V
4 21
CS CB
C9882
25V 8200p 5 20
COVP OUT-1
C9883
50V
R9892 100p 6 19
CUVP LX
100k
C9884
50V 1000p 7 18
PGOOD VBIN
C9887
8 17
CTL VCC
0.1u
VB1_5V
9 16
LSAT VB
R9893 VB1_5V
43k
10 15
ILIM OUT-2
P15V
R9868
11 14
100k R9894
+INC PGND
20k
12 13
Q9805 -INC FSW
2SD0601A0L C9863
6.3V
4.7u
P3.3V P15V
R9871
D9808
10k
B0JCCE000008
D9807 R9869
B0JCCE000008 10k Q9806
2SD0601A0L
R9870
10k
104 105
57
STB3.3V ON/OFF
IC9011
C0EBF0000431
RESET
STB5V STB 3.3V
VDD
4 VOUT 3
P3.3V C9033 C9036 C9034
R9127
16V 10V 16V
68k 0.1u
0.1u 10u GND
Cd
5 2 C9037
25V
0.01u
R9134 CE
33k RESET
6 1
STB_D3.3V
R9141
100 Q9046
R9828 2SD0601A0L
R9121
47k Q9044
100k
2SD0601A0L
R9129
47k
P1.2V
STBY3.3V_ON
P15V
P
R9855
C9869 C9872
VJUMP2012-P
25V 25V
10u 10u
25V
0.1u
1 8
P2.5V
L9802
2 7
G1C2R2Z00007
3 6
P
R9853
VJUMP2012-P
4 5
C9866
4V
25V Q9809
68u
B1MBDDA00003
IC9806
C0DBAYY00273
DC-DC CONVERTER
15V->2.5V
15V->1.5V
TH-42PX80U
A-Board (12/15) Schematic Diagram
106 107
STB_D3.3V
P
C9035 R9153
10V VJUMP2012-P
10u
31
32
33
34
35
108