YORKVILLE Coliseum CA12, Схемы обслуживания

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Title
Number Revision Size
A4
Date: 15-Feb-2006 Sheet of
File: D:\OTHER MODEL\MP1200\AMP1270.ddbDrawn By:
MAIN BOARD 3OF 7
3 7
1270S03.SCH
R
3
0
9
4
7
K
R301
1.5K
R303
56K
R305
10K
R307
4.7K
C303
56P
C301
4u7/50V
3
2
1
IC301A
4558
R
3
1
0
4
7
K
R302
1.5K
R306
10K
R308
4.7K
C304 56P
C302
4u7/50V
5
6
7
IC301B
4558
IN
P
U
T
R304
56K
L
IN
E
-1
R
3
1
4
2
.2
K
R315
220K
C311
56P
3
2
1
IC302A
4558
R
3
1
1
1
0
0
K
5
6
7
IC302B
4558
R319
10K
R320
15K
D302
1N4148
C312
100uF/25V
R316
4.7K
R
3
1
3
1
0
0
K
FC301
N.C
FC302
N.C
2
3
1
SW301A
5
6
4
SW301B
R
3
1
2
1
0
0
K
Q301
2N4401
R317
100
C309
4u7/50V
C305
10u/25V
C306
10u/25V
R325
22K
D305 1N4148
1
2
3
4
5
6
7
8
9
10
CNA302
CON10
BUS-L BUS-R
TO ZONE 3 AMPLIFIER
CLOCK
Clock
POWER.3
R-CH.3
L-CH.3
D307
1N4148
+15V
-15V
8
4
IC302C
4558
8
4
IC301C
4558
C307
100uF/25V
C308
100uF/25V
+15V
-15V
L-IN.3
R-IN.3
BUS PW
C310
10u/25V
D
3
0
1
1
N
4
1
4
8
Q303
2N4401
D311
1N4148
CLIP.3
D306
1N4148
D
3
0
9
1
N
4
1
4
8
OutA
2
VCC
1
VREF
5
IN-A
3
Sense
6
SW
7
INT
4
IN-B
8
OutB
9
GND
10
IC304
NJM2761
3
2
9
7
8
4
5
1
6
JK303
3
2
1
IC303A
TL072
R337
30K
C319 100P
R
3
3
3
3
0
K
C317
1uF/50V
R335
499
C315
560P
6
7
5
IC106B
SSM2164
5
6
7
IC303B
TL072
R338
30K
C320 100P
R
3
3
4
3
0
K
C318
1uF/50V
R336
499
C316
560P
8
4
IC303C
TL072
C328
0.22uF/50V
C329
22uF/25V
R339
9.1K
2
3
1
SW302A
R321
220
D304
1N4148
RESET
reset
R318
220K
+15V
CLIP-3
POW-3
VCL-3
VCR-3
JK301A
JK301B
BOARD CNA702
+15V
VCA-L
Clock
LCH-O
RCH-O
-15V
VCA-R
GND
CLIP
R324
15K
D308
1N4148
LIMITER SW
OFF
ON
R340
1K
REMOTE VOLUME
C
3
2
6
0
.2
2
u
F
/5
0
V
C
3
2
5
0
.2
2
u
F
/5
0
V
C323
0.22uF
C324
0.22uF/50V
C327
0.022uF/50V
V
-
9
G
N
D
8
V
+
1
6
M
o
d
e
1
IC106E
SSM2164
R
3
2
6
7
.5
K
C321
0.1uF
C322
0.1uF
+15V -15V
R341
68
ZD301
12V
+5V
1 3
2
VR301
B50K
1 3
2
VR302
B50K
POWER
3
2
4
IC106A
SSM2164
+15V
+15V
+5V
R
3
4
2
4
7
K
C
3
3
0
0
.1
u
F
MUTE MUTE
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