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SA-HT680PL
0PL
SCHEMATIC DIAGRAM-4
MAIN CIRCUIT
CN2004
G
VGND
PY/Y/G
VGND
CB/PB/B
VGND
CR/PR/R
VGND
Y
VGND
C
ADAC5V
MIXL
F
ADAC5V
MIXR
ADACGND
FL
ADACGND
FR
ADACGND
SL
ADACGND
SR
ADACGND
TO
CENTER
DVD MODULE
E
ADACGND
CIRCUIT
(FP8101)on
SUBW
SCHEMATIC
VREF
DIAGRAM-1
ZFLAG
DGND
AUDIO
DIGITAL
DGND
D+5V
DGND
D+5V
DGND
A+5V
AGND
D
A+5V
AGND
D+1.2V
DGND
D+1.2V
DGND
M+9V
MGND
M+9V
MGND
DSPCLK
CMD
C
STATUS
CN2006
TO
B
POWER
CIRCUIT
(CN501)on
SCHEMATIC
DIAGRAM-8
CN2013
A
TO
FAN MOTOR
50
49
48
47
46
45
44
43
42
41
40
C2157 50V10
R2157 10K
39
38
C2257 50V10
R2257 10K
37
36
C2156 1
R2156 2.7K
35
34
C2256 1
R2256 2.7K
33
32
C2300 50V10
R2300 10K
31
30
C2400 50V10
R2400 10K
29
28
C2500 50V10
R2500 10K
27
26
C2600 1
R2600 5.6K
25
24
23
22
Q2028
B1GBCFJN0033
21
Muting Switch
20
19
R2895
18
10K
17
16
15
14
13
12
11
10
9
8
7
6
C2834
16V220
5
4
3
2
1
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
CN2003
PY
CB B
TO
TUNER PACK
CR R
S Y
S C
DVD A+5V
DVD MIXL
DVD MIXR
DVDFL
DVDFR
DVDSL
DVDSR
DVDCNT
SUBW
DVD MUTE
DVD D+5V
DVD A+5V
D+1.2V
M+9V
DVD CLK
DVD CMD
DVD STAT
SYNC
PCONT
SUBWOOFER
CENTER
SURR R
SURR L
FRONTR
FRONTL
MUTE H
SYS6V
DCDET
120
STANDING
CIRCUIT
CP2001
CN2002
TUNER GND
10
10
TUN+9V
9
9
8
8
TUNER RCH
7
7
TUNER D0/ST
6
6
TUNER LCH
5
5
TUNER SD
4
4
TUNER DI
3
3
TUNER CLK
2
2
PORT SEL GND
1
1
CN2001
TO
CD LOADING
CIRCUIT
(CN1)on
SCHEMATIC
DIAGRAM-10
:+B SIGNAL LINE
TUNER GND
10
TUN+9V
9
8
TUNER RCH
7
TUNER D0/ST
6
TUNER LCH
5
TUNER SD
4
TUNER DI
3
TUNER CLK
2
PORT SEL GND
1
PLAY SW
14
ST SW
13
OP/CL REV
12
OP/CL FWD
11
OPEN SW
10
+5V
9
POSITION
8
BOTTOM
7
UP/DOWN R
6
UP/DOWN F
5
GND
4
CHANGE SW
3
LOAD GND
2
+7.5V
1
C2827
16V47
C2517 50V4.7
R2530 27K
Q2501
B1GDCFGA00
Muting Control
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