Panasonic SC-HT870 Service Manual page 168

SCHEMATIC DIAGRAM-6
MAIN CIRCUIT
: +B SIGNAL LINE
IC2004 IC2000
C0CBADG00023 C0CBADG00023
Regulator Regulator
C2053
3 2 1 3 2 1 1
R2898
560
L2011
DVD D+5V G0A100G00005
DVD A+5V L2012
G0A101G00022
D2008
B0BC7R500001
L2013
G0A100G00005
M+9V
DVD AC
Q2011 D2012
D+1.2V
B1ADCF000001 B0ACCK000005
Power Supply
C2063
Q2013
10V47 R2819 1
B1ABCF000131
1 2 3
Regulator
VIN BIAS VOUT R2820 1
IC2005
R2821 1
C0DBEFG00003
Regulator
VREF R2822 1
6 5 4
R2823 1
R2813
1K
R2815 330
Q2017
B1BCCD000016
Regulator
-7.5V
+7.5V
Q2015 C2069 R2834
R2836 R2837
KTA12710YTA 0.01 2.7K
2.7K 560
-VP Regulator
D2015
B0EAKM000117
C2067 R2831 R2832
C2070
0.01 150 4.7K
16V100
Q2016
C2066 D2014 B1ADCF000001
50V100 B0BC02900004 Regulator
C+9V
R2981
0
+12V
Q2022
Q2021
R2846 2SD21370PA R2849
B1AAKD000009
820 4.7
Regulator
SW5V Regulator
C2084 C2086 R2848
R2845 R2847
0.01 0.01 1.8K
150 470
C2083 D2025 C2085 D2026
16V100 B0BC5R600003 25V100 B0BC7R500001
D2027
B0ECKM000016
SUB B
R2857 15K
R2858 39K
T+9V
C2095
16V10
C2089
50V4.7
N
Q2025
DCDET
B1GBCFJA0015
DC Detect Switch
DVD AC
R2859 4.7K
: -B SIGNAL LINE : MAIN SIGNAL LINE : DVD(VIDEO) SIGNAL LINE
IC2002 IC2001
C0DBAZG00033 C0DBAZG00033
DC-DC Converter DC-DC Converter
1 2 3 4 5 1 2 3 4 5
L2019
G0A101G00022
R2860
4.7K
C2060 10V1
R2899 R2900
1K 1K R2816 3.9K
D2009 D2011
C2061
B0JCPD000025 B0JCPD000025
6.3V820P
L2014
G0A100G00005
C2062 C2817 D2010
1 16V10 B0BC7R500001
R2824
C2056 D2013
820
25V33 B0BC9R000008
Q2014
R2826
1.2K B1GDCFGA0014
Stabilizer
C2057 R2825
0.01 10K
R2827 2.7
R2828 2.7
Q2012
R2829 2.7
B1BCCG0000021
R2830 2.7
Regulator
C2074 63V100
R2835
4.7
C2075 50V100
FP2000
C2076 DC DET
2A
D2016 D2017 D2018 D2019 25V
B0EAKM000117 B0EAKM000117 B0EAKM000117 B0EAKM000117 1000P
SYS6V
C2071 C2072 C2073 D2020
MUTE H
63V100 50V100 25V1000P B0EAKM000117
FRONTR
D2023
B0FBAM000010
SUB+B
FRONTL
RSURR
LSURR
CENTER
C2080
D2024
25V
B0ECKM000016
4700
SUBWOOFER
L2018
G0A100G00005
C2082 C2077 PCONT
L2017
50V47 G0A100G00005 0.1
SYNC
FL1
FL2
+12V
DVD A+5V
WIDE1_
VMUTE3(RGB HD)
S Y
S C
G
Q2023
B
R2850 2SD21370PA R2853 D2034
8.2 Regulator 4.7 B0ECKM000016
R
C2088 R2920 R2852 C2081
YC H
0.01 12K 12K 50V220
E2000
C2171 K4CZ01000027
R2851 0.1 TV R
C2087 D2029
100
16V100 B0BC01000014
TV L
KEY2
JOG B
JOG A
BLUE LED
VREF+
Q2031
RMT
B1GBCFJJ0039
FAN motor drive HP L
HP R
EPM
R2032
220
JK2000
1 DVDAC2
2 DCDET
3 DVDAC1
4 SYS6V
5 MUTE H
SCART CIRCUIT
6 DGND
7 FRONTR
8 SUB+B
9 OUTPUT GND
D1002 R1041
B0BC01200019 100
10 OUTPUT GND
11 FRONTL
R1042 R1040
12 SURRR 10K 10K
TO
13 GUARD GND
ACTIVE
L1002
SUBWOOFER
14 SURRL J0JBC0000015
UNIT
15 CENTER
SB-WA878EG/EB-S C1001
16 GUARD GND 16V100
17 SUBWOOFER
18 GUARD GND
PCONT
19
FAN DRIVE
20
21 SYNC
22 FL1
23 SUBAC1
24 FL2
25 SUBAC2
C2830 0.1
26 CASE GND
CN2005 CN1001
1 NSW+12V NSW+12V 1
2 A+5V A+5V 2
3 WIDE1 WIDE1 3
4 RGB H RGBH 4
5 YOUT YOUT 5
6 GND VGND 6
7 COUT COUT 7
8 GND VGND 8
9 G G 9
10 GND VGND 10
11 B B 11
12 GND VGND 12
13 R R 13
14 YC H YCH 14
15 GND AGND 15
16 TVRCH RIN(TV) 16
17 GND AGND 17
18 TVLCH LIN(TV) 18
19 MUTE AGND 19
CN2008
1 KEY2
FL2
2 JOG B
SW5V
3 JOG A
FL1
4 BLUE LED
FLD DA
TO
5 VREF+
VOLUME
FLD CK
CIRCUIT
6 GND1
FLD CS
(CN6032)ON
7 RMT
SCHEMATIC
8 HP L DIAGRAM-7
FLD RST
9 HPGND
-VP
10 HP R
KEY1
STBY LED
C1020
50V2.2
Q1010
B1AAKD000009
Regulator
IC1001
C1004
0.01 C9ZB00000432
IC1003
Video selector IC
C1AB00001731
R1003
1K C1005 C1018 Video Buffer
1 VCC1 VCC 34
0.1 0.01
2 CIN COUT 33 4 IN1 VCC 3
C1006 C1013
3 MUTE1 GND2 32
0.1 6.3V220 R1020 L1020
4 VIN YOUT 31 75 J0JBC0000015
5 2
GND OUT
5 YC-MIX VSAG 30
C1014
C1010
6 YIN GND2 29
10V22 6.3V220
R1004
7 BIAS YOUT 28
1K 6 SW 1
IN2
R1021 L1021
8 GND1 YSAG 27
75 J0JBC0000015
9 NC GND2 26
C1015 R1022 L1022
10 GND1 CYOUT 25
6.3V220 75 J0JBC0000015
C1007
Q1001 11 NC CYSAG 24
1
2SB0709AHL C1016 R1023 L1023
12 CYIN GND2 23
Amplifier 6.3V220 75 J0JBC0000015
C1008
13 CLP CBOUT 22
1
14 CBIN CBSAG 21
C1017
15 MUTE2 GND2 20
6.3V220
16 CRIN CROUT 19
C1009
17 GND2 CRSAG 18
1
R1015
18K
D1001 R1027
B0ACCK000005 470
R1016
22K
Q1005
2SD0601AHL Q1007
R1018 R1019
Switch
UNR211H00L
4.7K 22K
Switch
Q1004
Q1006
UNR221200L
Inverter UNR221200L
IC1002
Inverter
XN0460100L
Switch
R1017 R1024
R1009 22K 4.7K
22K
SA-HT870E,EB,EG MAIN CIRCUIT
CN2009
1 FL2
2 SW5V
3 FL1
4 FLD DA
5 FLD CK
6 FLD CS
7 FLGND
8 FLD RST
9 -VP
GND1
10
TO
KEY 1
11
FL CIRCUIT
STBY LED
12 (CN6008)ON
R2969 0
DISC1 SCHEMATIC
13
DIAGRAM-7
14
15
16
17
18
19
20
21
22
C1011 C1012 C1019
0.1 0.1 0.1
R1028
JK1001
1K
R1025
1 A(B)OUT
10K
2 A(B)IN
3 A(A)OUT
R1029
4 A-COM
1K
R1026
5 RETURN
10K
6 A(A)IN
7 BLUE I/O
8 FUNC SW
9 RETURN
10 CONT
21PIN
11 GREEN I/O
AV JACK
12 NC
13 RETURN
14 RETURN
15 RED I/O
16 BLK I/O
R1031
17 RETURN
75
18 RETURN
19 V-OUT
20 V-IN
R1030
21 GND
75