Panasonic SA-HT680PL Service Manual page 79

SCHEMATIC DIAGRAM-7
MAIN CIRCUIT
:+B SIGNAL LINE
R2056 47K
R2057 47K
R2058 56K
R2054
220
80 79 78 77 76 75 74 73 72 71 70 69 68 67
R2080
10K
R2063 220
FLD DA
81 FLD DA
DISC5
82 DISC5
DISC4
83 DISC4
DISC3
84 DISC3
DISC2
85 DISC2
DISC1
86 DISC1
FLD RST R2060 100
87 FLD RST
FLD CS R2061 220
88 FLD CS
FLD CK R2062 220
89 FLD CK
LM LOUT R2055 1K IC2018
90 LM LOUT
C2CBJG000578
KEY2 R2064 100
91 KEY2 System Control
LM ROUT R2081 1K
92 LM ROUT
R2065 10K
93 DES3
R2066 10K
94 DES2
R2067 10K
95 DES1
R2068 10K
R2072
96 AVSS
100
KEY1
97 KEY1
98 VREF
99 AVCC
R2069
22K
100 PLAY
R2074 R2075 R2073
39K 2.7K 220
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
PLAY
R2076 100K
R2017
10K
R2077 4.7K
R2000 220
ST SW
R2001 220
CL REV
R2002 220
CL FWD
R2003 220
OPEN SW
R2004 220
POSITION
R2006 220
UP/DOWN F
R2078 470
SYNC
R2084 22K
C2001
0.1
R2082 47K
C2007
0.1
D2000 L2000
B0ACCE000003 G0C3R3JA0027
C2009 C2008
6.3V100 0.1
R2083 D2002
680 B0ACCE000003
D2001
B0ACCE000003
C2006
50V2.2
Q2000
B1GBCFLL0037
C2003 C2004 C2005 D2003 Reset Switch
10V22 0.01 10V1000 B0ACCK000005
34 35 36
:-B SIGNAL LINE :MAIN SIGNAL LINE
R2043
220
R2042
R2041
220 220
C2000
0.1
66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
NC 50
R2037 1K VOL CK
VOL CK 49
R2036 1K VOL DA
VOL DA 48
MUTE L 47
NC 46
NC 45
R2033 220 DVD MUTE
DVD MUTE 44
MUTE HP
MUTE HP 43
SUB MUTE
SUB MUTE 42
EPM 41
MUTE C
MUTE C 40
MUT FRNT
MUT FRNT 39
R2031 220
WIDE1 38
R2030 220 DVD CLK
DVD CLK 37
R2029 220 DVD STAT
DVD STAT 36
R2028 0 R2035 1K DVD CMD
DVD CMD 35
MUTE S
MUTE S 34
(CLK) 33
R2038
R2026 220
RXD 32 2.7K
R2025 220
(TXD) 31
R2019 220
R2018 220
TUN CK
R2016 220
TUN D0
TUN SD
R2015 220
BOTTOM
R2014 220
R2013 220
R2012 220
R2079 R2010 220
CHANGE SW
22K
R2009 220
UP/DOWN R
R2007 1K
X2000
H2B100500004
10MHz
IN OUT
GND
R2032
220
37 38
REGULATOR CIRCUIT
CN2009
1
SW5V
2
3
FLD DA
4
FLD CK
5
CN2007
FLD CS
6 SUBAC1
1
7 C2845
TO 2
FLD RST
0.1
8 POWER SUBAC2
3
CIRCUIT
9 SUB+B
(H504)on 4
KEY1
10 SCHEMATIC FL2
5
DIAGRAM-8
11 FL1
6
M+9V
12
13 TO
DISC1
FL
14
CIRCUIT
DISC2
15 (CN6900)on
DISC3
SCHEMATIC
16
DIAGRAM-9
DISC4
17
DISC5
18
KEY2
19
JOG B
20
JOG A
21
VREF+
22
RMT
23
HP R
24
25
HP L
26
WIDE1
CN2000 H2000
1 1
2 2
3 3
4 4
5 5
FL1
6 6
FL2
TUN 7 7 R2830
2.7K
DI UNREG UNREG
8 8
-VP
9 9
-7.5V -7.5V
10 10
M+9V
11 11
+7.5V +7.5V
12 12
ECS
C2842
50V100
ECK
EDA
CN2011 H2010
6 6
5 5
Q2809
RMT
B1ACKD000005
4 4
Regulator
3 3
2 2
1 1
E2800
SNE1004-2
C2844
0.1
39 40 41
79
R2816
Q2804
820
B1ABCE000016
Regulator
D2804
B0BC9R000008
D2807
B0ACCK000005 R2815 R2814
3.3K 3.3K
C2806
0.01
Q2803
B1BCCG000023
Regulator
C2816 63V100
C2817 50V100
D2817 D2816 D2815 D2814 D2813
B0EAKM000117 B0EAKM000117 B0EAKM000117 B0EAKM000117 B0EAKM000117 C2846 25V1000
C2821 C2820 C2847 D2812
63V100 50V100 25V1000 B0EAKM000117
Q2807
B1BCCD000019
R2837
Regulator 4.7
C2823 R2818 D2822
0.01 2.7K B0FBAM000010
C2824 R2819
25V33 2.7K
Q2808
C2822
B1ADCF000001 63V100
R2829 Regulator
560
D2827
B0EAKM000117
R2821 D2818 C2832 R2835 D2824
150 B0BC02900004 16V100 470 B0BC7R500001
C2850 R2820 C2831 R2834
0.01 4.7K 0.01 1.8K
Q2814
B1BACD000018
Regulator
SA-HT680PL MAIN CIRCUIT
42 43
SA-HT680PL
G
C2802
16V100
F
E
FP2800
K5G202AA0002
D
C2826
25V3300
C
B
A
44