U
V
X
Z
AB
AD
W
Y
AA
AC
ZD19
ELECTRIC
/VOLUME
(BOTTOM
POWER AMP (FRONT)
SW IN
CN701
IC110
(1/2)
IC112 (2/2)
IC112 (1/2)
IC110
(2/2)
IC111
(2/2)
RcH
RcH
ScH
CcH
(1/2)
IC111
LcH
C IN
L S IN
TONE
MUTING
-10dB
ATT
FL
FR
LS
CENTER
SW
RS
ZD20
Q113
Q114
Q119
Q120
Q121
Q123
Q115
Q117
Q118
Q116
Q124
Q122
ZD21
Q111
Q110
IC113
(1/2)
IC113
(2/2)
VIEW)
)
(
)
(
)
(
10
R168
OUTPUT PORT
4
3
2
1
8
5
6
7
A
VDD
GND
9
R76
R82 100
R81 100
R80 100
42
MCU
I/F
38
39
40
41
R77 2.7K
C49 1u50
750
C50
220P
35
AGND
36
37
33
34
220
R75
C47 10u50
1W
39
40
41
TONE
TONE
C171 0.33u100
C169 0.015
+
C159
C160
C167 8200P
11
12
13
GNDR
14
15
GNDL
LBSS3
LBSS2
LBSS1
17
100P
100P
16
18
19
20
21
L
TRE
28
32
A
VSS
29
30
31
R
TRE
26
27
RBASS1
RBASS2
RBASS3
22
23
24
25
C168 8200P
C170 0.015
+V(PRE)
17
18
19
20
1IN
1NF
MUTE
22
21
2IN
2NF
+V(PRE)
17
18
19
1IN
1NF
20
21
22
MUTE
2NF
2IN
23
3NF
24
25
26
3IN
3OUT
+
+
+
+
+
3.3u16
C174
+
C173 3.3u16
+
+
C172 0.33u100
4.7u50
C157
R79 1K
1K
R78
R85 47K
47K
R86
3
4
220K
C166 4.7u50
R166
220K
C164 4.7u50
220K
R165
C163 4.7u50
4.7u50
C165
R167
220K
+
4.7u50
C162
+
220K
R164
C161 4.7u50
+
220K
R163
C149
100P
100P
C150
C148
100P
4.7u50
C158
20
24
25
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
13
14
15
16
17
18
19
20
21
22
23
24
VDD1
XS24
R
VDT
XLA
T
T.
P
REDY
SCK
VSS3
A
VS4
A
VD1
R OUT
A
VD2
AVS2
LO2
RIN
AVD6
AVS6
XSOUT
AUSX
XTLI
XTLO
AUDX
XCOUT
AUS5
AUD5
LIN
LO1
TST2
TST3
TST4
XRST
BFOT
CSL1
CSL2
VSS2
A
VS3
A
VD3
L
OUT
A
VD1
7
6
5
4
3
2
1
S.DA
T
A
S.BUSY
10dB A
T
T
PWR RELA
Y
CSW RELA
Y
SUR RELA
Y
FR RELA
Y
7
6
5
1K
R169
R170 1K
COMPUTER
MICRO.
I/F
Trim VOL
DAC4
DAC3
Trim VOL
AUS1
25
DAC1
ADC2
ADC1
DAC2
R122
4.7K
100
R1
19
R120
100
100
R138
R121
100
R94
1
6
5
8
7
22P
C130
0.01
C131
22P
C132
C128
0.1
R93
1
R92
1
R140 100K
C126 10u50
+
4
2
3
1
C64 100P
R109
15K
R107
33K
10u50
C103
+
1
2
3
+
C101
10u50
2.2K
R101
8
5
6
7
4
C119 100P
C120 47P
R150 47K
R149 47K
100P
C107
22K
R
111
330P
C105
1M
R105
100K
R103
7
6
R104 100K
5
1.2K
R142
5.6K
R144
8.2K
R146
1000P
C124
1000P
C122
+
10u50
C118
2200P
C123
2200P
C121
1000P
C67
100P
C68
10u50
C125
+
R139 100K
5.6K
R143
1.2K
R141
8.2K
R145
10u50
C117
+
100P
C108
R1
10
15K
R112
22K
330P
C106
R108
33K
1M
R106
+
10u50
C104
+
10u50
C102
R102
2.2K
+
8
220u6.3
C134
+
C1
16
1000P
3.3K
R1
14
10K
R116
10K
R118
12K
R124
330P
C1
12
R126 10K
C114 330P
+
C110
10u50
100K
R128
R130 39K
46
47
49
50
0.1
C133
220u6.3
C129
+
100K
R147
+
C127
220u6.3
100K
R148
R117
10u50
R115
1
R123
1000P
C1
15
10K
10K
330P
C
111
12K
4
3
100K
R127
R125 10K
2
C113 330P
C109
2.2
R89
1
R90
470u6.3
C62
+
470u6.3
C61
+
3.3K
R1
13
R91
1
220u6.3
C140
+
47K
R293
1000P
C293
0.1
C141
C139
0.1
C244
+
R171
470
C175
4.7u50
100K
R177
100K
R178
1000P
C181
1000P
C182
R189
1K
R190
1K
1.2K
R183
R184 1.2K
470
4.7u50
+
R172
C176
+
R175
470
C179
4.7u50
R195
2.7K
+
C187
1u50
1K
R201
R213
2.2K
R214
2.2K
1u50
+
C188
1K
R202
1000P
C185
R181 100K
1000P
R179 100K
C183
R217
R193
2.2K
1K
C189
1u50
+
R185 1.2K
R203
1K
R191
1K
R215
2.2K
C191
1u50
R187
+
1.2K
R199
2.7K
1K
R205
C186
100K
R182
470P
100K
R180
C184 1000P
1K
1.2K
R188
R194
2.2K
R218
R192
1K
1.2K
R186
R216
2.2K
+
R173
470
C177
4.7u50
470
R174
+
4.7u50
C178
+
470
R176
4.7u50
C180
C190
1u50
+
R204
1K
R196
2.7K
2.7K
R197
2.7K
R198
R200
2.7K
100K
R132
+
100P
100P
C243
10u50
C48
+
R74
220
1W
Q113-118
Q119-124
10u50
C195
+
1K
R207
56K
R221
100K
R219
C29
3900P
R225 56K
100P
C193
100u10
C197
+
470
R223
C245 100P
R229 33K
R226 56K
470
R224
100u10
C246 100P
C198
+
1K
R208
+
C196 10u50
56K
R222
100K
R220
100P
C194
21
C59
3900P
R233
100K
10u50
C210
+
56K
R236
1K
R210
100P
C207
R238 56K
1K
C212 15P
100u10
C216
+
470
R244
C250 100P
R246 33K
C249 100P
1K
R239 56K
C213 15P
R245 470
C215
100u10
+
R209
1K
+
C209 10u50
100P
C206
R235
56K
100K
R232
C247 100P
+
100u10
C214
C21
1 15P
R237 56K
470
R243
1K
R21
1
1K
100P
C205
R234
56K
100K
R231
+
C208 10u50
23
21
19
R240
R241
R242
2
1
4.7K
R12
1K
R51
1K
R55
4.7K
R13
680
R49
1u50
C32
+
R52 100K
R53 47K
+
C31 22u16
10K
R57
22K
R56
1K
R54
1K
R50
1W
21
18
3.3K
R
13
5
6
4
7
8
2
3
1
1u50
C52
+
C51 0.18
47u50
C56
+
3.3K
R134
100K
R288
15K
R133
10u50
C251
+
R135 18K
100P
C55
100K
0.01
C54
100P
C53
R136
+B
+B
+B
19
0.033
C147
R137
220K
39K
R129
R131
39K
C63
1000P
C65
1000P
100P
C66
100
R292
B
B
B
B
B
B
B
B
B
B
B
+B
+B
+B
+B
B
B
B
4.7uH
L1
10
X101
+
COM/-V
B
+B
+B
B
+B
+B
B
+B
+B
+B
+B
+B
+B
B
+B
+B
B
B
+B
+B
B
B
+B
+B
B
B
B
+B
B
+B
+B
+B
+B
+B
+B
B
+B
+B
+B
+B
+B
+B
+B
B
+B
+5V
+B
+B
+B
MAIN UNIT
IC107
IC103
-44.2V
0V
0V
-44.2V
47.2V
0V
0V
6.6V
14.9V
-15.1V
4.9V
4.3V
0V
0V
0V
0V
4.3V
5.0V
OFF:2.5V
10dB ATT
MUTE
-15.1V
OM:2.5V
OFF:4.7V
OFF:3.7V
ON:3.6V
MUTE
OFF:-4.9V
ON:3.6V
OFF:3.7V
-10dB ATT
OFF:-4.9V
ON:1.4V
MUTE
14.9V
-6.9V