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BX
BY
MAIN PCB (1/2)
Q Q
3 7 6 3 1 5 1 5 0
LC58
1u50
+
MODIFIED
DUAL-TIME CONSTANT
B-TYPE
AND THRESHOLD SWITCHES
NR DECODER
LC57
32
1u50
+
31
2.6V
12.0V
30
2.6V
LC55
4700P
29
L C R
2.6V
28
2.6V
CENTER
EC9
MODE
1000P
CONTROL
27
2.6V
L R C
LC53
EC8
26
2.6V
0.22
1000P
LC52
25
0.7V
0.22
24
2.6V
23
2.6V
22
2.6V
CLK
21
2.6V
20
2.6V
19
2.6V
18
MIC VOL
EQ2
MCU
17
INTERFACE
AGND
VOL
DVDD
DATA
SCK
REQ
S
S
0V
5.0V
10.4V
T E
12.0V
L
1 3 9 4 2 2 9 6 5 1 3
LIC9
LR110
2.2
IN OUT
GND
+12V
LC84L 220P
FL
21
LR39L 6.8K
LC85L
6
9.4V
7
4.7u50
5
32
LQ26
LIC12
4
LQ11
OPE AMP
LR38L 10K
(2/2)
31
LIC5
ANALOGUE SW
LC84R 220P
+B
FR
28
LR39R 6.8K
LC85R
27
2
1
4.7u50
3
26
LIC12
8
(1/2)
+12V
LR35
LIC5
OPE AMP
21
47K
20
LR41 82K
LR42
LR44
2
27K
27K
LQ27
1
LR101
-9.3V
3
4
LIC13
LC87
22K
(1/2)
0.1
LQ9
LR34
B
LQ8
390 1/2W
SW
5.0V
w w w
12V
+12V
+12V
+5V
BZ
CA
FR
B
FL
B
+B
+B
AIC1
POWER AMP
(FRONT)
ER3
22K
9
AZD1
PR25
42.7V
2.2K
5.5V
ER6
ER4
10K
22K
AC11
10u50
PQ8
26.8V
+
EC12
EC11
+B
0.01
B
0.8V
4700P
B
AR4L1K
AR3R 1K
AR5L 1K
AQIL
2.5V
AR3L 1K
AR5R 1K
AQ1R
AR4R 1K
EIC1
LQ23
EC7
EC4
EC2
0.01
3300P
2.2u50
+
4.4V
EIC1
LC102
ECHO
22u16
IC
ER12
15K
JW211
EQ1
ER16 47K
4.6V
LIC2
4
5
+12V
VOLUME
TREBLE
6
7
2
I
CBUS DECODER+LATCHES
3
LC14
2.2u50
2
VOLUME
TREBLE
+
4.6V
LC38
2.2u50
1
6
+
5
+
28
INPUT
4.6V
MULTIPLEXER
12V
4.6V
LC16
CENTER
2.2u50
LIC1,LIC2
+
CENTER
VOLUME/TONE
LC3R
CONT.
2.2u50
LR99 0
3
+
4.6V
LR100
LIC1
100K
RR
7
+
4
LR97R
LC1R
0
2.2u50
4.6V
5
4
+
6
VOLUME
TREBLE
LC2R
2.2u50
4.6V
6
+
7
SW
2
I CBUS DECODER+LATCHES
LIC13
(2/2)
6
7
3
LC1L
5
LR97L
2.2u50
4.6V
2
VOLUME
TREBLE
8
+
0
+12V
LC2L
12V
RL
2.2u50
4.6V
1
+
28
INPUT
4.6V
12V
MULTIPLEXER
SURROUND
LC3L
2.2u50
+
12V
12V
x
a o
+12V
+12V
y
+12V
+12V
+5V
+5V
.
i
CB
CC
B
B
+B
+B
AZD2
-26.8V
AC56 8P
AC55 8P
AR13
100 1W
B
AR15
100 1W
+B
AC10
AC9
41.5V
10u50
10u100
+
+
-42.7V
AC2L 1u50
+
AQ2L
AC2R
AQ2R
1u50
+
PR1R
PR1L
0.22
0.22 5W
5W
PC1L
PC1R
2200P
2200P
PR3L
PR3R
820
820
PQ1L
PQ1R
Q
Q
3
7
6
OPE AMP
LIC11
+12V
LC22S
LR7S
(2/2)
LC24S
NC
16
10u50
220
3.7K
8
4.7u50
7
NC
17
+
6
+
SOUT
27
3.9V
5
BASS
SPK ATT
LR8S 10K
LR60
CLK4
21
4.9V
100
LC23S 390P
19
DO4
22
LR70 100
18
SW
12.0V
4.9V
DGND
20
LIC11
LC22C
LR7C
(1/2)
LC24C
COUT
26
4.6V
10u50
220
4
BASS
SPK ATT
1
4.7u50
+
3
VDD
24
9.2V
+
2
VREF
AGND
25
LR8C 3.9K
3.7K
SUPPLY
LC23C 390P
4.6V
CENTER
LC108
LR108
LR11 220
330P
4.6V
10
1/2W
LC21
LC109
10u25
330P
+
4.6V
OPE AMP
LIC10
LC8R
LR2R
(2/2)
LR11R
10u50
220
NC
16
8
3.7K
7
4.7u50
+
6
16
NC
17
+
5
ROUT
27
3.9V
BASS
SPK ATT
LR3R 3.9K
LR40
CLK3
21
4.9V
100
LC9R 390P
17
DO3
22
LR50 100
RR
LC121
16
100P
4.9V
DGND
20
LIC10
LC8L
LR2L
(1/2)
LC11L
10u50
220
4
LOUT
26
BASS
SPK ATT
1
4.7u50
+
3
15
VDD
24
+
2
VREF AGND 25
LR3L 3.9K
3.7K
SUPPLY
LC9L 390P
4.6V
LC122
RL
100P
LR107
10
LR5 220
LC107
LC7
9.2V
330P
10u25
1/2W
+
12V
u 1 6 3
+12V
+12V
+5V
CD
CE
2
4
8
9
9
B
B
B
B
+B
+B
+B
+B
LIC3
POWER AMP
(CENTER/REAR)
TR7
TR9
TR4
C1
TR5
TR12
TR1
TR2
TR3
R5
R10
TR8
TR10
TR6
TR13
CENTER
25.0V
LC92C
LC93C
2.2u50
100P
-24.8V
+
LC27C 820P
LQ18
B
+B
LR86C
LR46L
LQ6
1K
470
0.6V
LQ5
LR47C
LR91
LQ21
LR45C
470
470
100K
3
1
5
1
5
0
8
9
LR90 470
9
LR46R
LQ22
1K
16
+12V
LQ19
11.9V
RQ2
RR8
RR10
RQ3
33K
5.6K
RQ1
0.2V
RD6
R22 56K
RR14
150K
RR23 39K
RL
PR6L
+12V
0.22 5W
PR6C
RQ4
12.0V
0.22 5W
RQ5
RQ6
RR18
4.7K
PC2C
PC2L
PC2R
2200P
2200P
2200P
RR19
PR8C
PR8L
PR8R
22K
1.2K
1.2K
1.2K
1
2
PQ2C
PQ2L
PQ2R
RQ7
+12V
RR20
8.2K
m
12V
c o
+12V
+12V
+5V
.
CF
CG
2
8
9
9
B
B
+B
+B
TR17
TR11
TR21
C2
C3
TR19
TR14
TR15
TR23
TR22
R17
TR16
TR24
TR18
TR20
SUB
LC93L
LC93R
100P
100P
-26.8V
B
+B
26.8V
LR48L
LC92L
1K
2.2u50
+
LQ12
2
4
9
8
2
9
9
LR48R
LC92R
1K
2.2u50
+
LQ20
RR
CENTER
SUB WOOFER
+12V
12V
+12V
+12V
+5V
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