Panasonic SA-HT680PL Service Manual page 126

SA-HT680PL
SCHEMATIC DIAGRAM-7
MAIN CIRCUIT
R2056
R2057
R2058
R2080
10K
R2063 220
FLD DA
DISC5
DISC4
DISC3
DISC2
DISC1
R2060
FLD RST
R2061
FLD CS
R2062
FLD CK
LM LOUT R2055
R2064
KEY2
LM ROUT R2081
R2065 10K
R2066 10K
R2067 10K
R2068 10K
KEY1
R2069
22K
R2074 R2075
39K 2.7K
PLAY
R2076 100K
R2077 4.7K
ST SW
R2001 220
CL REV
R2002 220
CL FWD
OPEN SW
POSITION
R2006 220
UP/DOWN F
R2078 470
SYNC
R2084 22K
D2000
B0ACCE000003
R2083
680
D2001
B0ACCE000003
C2003 C2004
10V22 0.01
:+B SIGNAL LINE
47K
47K
56K
R2054
220
80 79 78 77 76 75 74
81 FLD DA
82 DISC5
83 DISC4
84 DISC3
85 DISC2
86 DISC1
100
87 FLD RST
220
88 FLD CS
220
89 FLD CK
1K
90 LM LOUT
100
91 KEY2
1K
92 LM ROUT
93 DES3
94 DES2
95 DES1
R2072
96 AVSS
100
97 KEY1
98 VREF
99 AVCC
100 PLAY
R2073
220
1 2 3 4 5 6 7
R2000 220
R2003 220
R2004 220
C2001
0.1
R2082 47K
C2007
0.1
L2000
G0C3R3JA0027
C2009 C2008
6.3V100 0.1
D2002
B0ACCE000003
C2006
50V2.2
C2005 D2003
10V1000 B0ACCK000005
:-B SIGNAL LINE
73 72 71 70 69 68 67 66 65 64 63 62 61 60 59
IC2018
C2CBJG000578
System Control
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
R2017
10K
R2079
22K
X2000
H2B100500004
10MHz
IN
Q2000
R2032
B1GBCFLL0037
220
Reset Switch
126
:MAIN SIGNAL LINE
R2043
220
R2042
R2041
220 220
58 57 56 55 54 53 52 51
NC 50
VOL CK 49
VOL DA 48
MUTE L 47
NC 46
NC 45
DVD MUTE 44
MUTE HP 43
SUB MUTE 42
EPM 41
MUTE C 40
MUT FRNT 39
WIDE1 38
DVD CLK 37
DVD STAT 36
R2028
DVD CMD 35
MUTE S 34
(CLK) 33
RXD 32
(TXD) 31
R2019 220
R2018 220
R2016 220
R2015 220
R2014 220
R2013 220
R2012 220
R2010 220
R2009 220
R2007 1K
OUT
GND
SW5V
FLD DA
FLD CK
FLD CS
FLD RST
KEY1
C2000
M+9V
0.1
DISC1
DISC2
DISC3
R2037 1K
VOL CK
DISC4
R2036 1K VOL DA
DISC5
KEY2
JOG B
JOG A
R2033 220
DVD MUTE
VREF+
MUTE HP
RMT
SUB MUTE
HP R
MUTE C
HP L
MUT FRNT
R2031 220
WIDE1
R2030 220 DVD CLK
R2029 220
DVD STAT
0 R2035 1K
DVD CMD
MUTE S
R2038
R2026 220
2.7K
R2025 220
TUN
DI UNREG
TUN CK
-7.5V
TUN D0
TUN SD +7.5V
BOTTOM
ECS
ECK
EDA
CHANGE SW
UP/DOWN R
RMT