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 2OF 7
2 7
LHH
1270S02.SCH
R
2
0
9
4
7
K
R201
1.5K
R203
56K
R205
10K
R207
4.7K
C203
56P
C201
4u7/50V
3
2
1
IC201A
4558
R
2
1
0
4
7
K
R202
1.5K
R206
10K
R208
4.7K
C204 56P
C202
4u7/50V
5
6
7
IC201B
4558
IN
P
U
T
R204
56K
L
IN
E
-1
R
2
1
4
2
.2
K
R215
220K
C211
56P
3
2
1
IC202A
4558
R
2
1
1
1
0
0
K
5
6
7
IC202B
4558
R219
10K
R220
15K
D202
1N4148
C212
100uF/25V
R216
4.7K
R
2
1
3
1
0
0
K
FC201
N.C
FC202
N.C
2
3
1
SW201A
5
6
4
SW201B
R
2
1
2
1
0
0
K
Q201
2N4401
R217
100
C209
4u7/50V
C205
10u/25V
C206
10u/25V
R
2
2
5
2
2
K
D205 1N4148
1
2
3
4
5
6
7
8
9
10
CNA202
CON10
BUS-L BUS-R
TO ZONE 2 AMPLIFIER
CLOCK
Clock
POWER.2
R-CH.2
L-CH.2
D207
1N4148
+15V
-15V
8
4
IC202C
4558
8
4
IC201C
4558
C207
100uF/25V
C208
100uF/25V
+15V
-15V
L-IN.2
R-IN.2
BUS PW
C210
10u/25V
D
2
0
1
1
N
4
1
4
8
Q203
2N4401
D211
1N4148
CLIP.2
D206
1N4148
D
2
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
IC204
NJM2761
11
10
12
IC105C
SSM2164
3
2
9
7
8
4
5
1
6
JK203
3
2
1
IC203A
TL072
R237
30K
C219 100P
R
2
3
3
3
0
K
C217
1uF/50V
R235
499
C215
560P
14
15
13
IC105D
SSM2164
5
6
7
IC203B
TL072
R238
30K
C220 100P
R
2
3
4
3
0
K
C218
1uF/50V
R236
499
C216
560P
8
4
IC203C
TL072
C228
0.22uF/50V
C229
22uF/25V
R239
9.1K
2
3
1
SW202A
+15V
R221
220
D204
1N4148
RESET
reset
R218
220K
+15V
CLIP-2
POW-2
VCR-2
JK201A
JK201B
BOARD CNA702
+15V
VCA-L
Clock
LCH-O
RCH-O
-15V
VCA-R
GND
CLIP
R224
15K
D208
1N4148
MUTE
LIMITER SW
OFF
ON
R240
1K
REMOTE VOLUME
C
2
2
6
0
.2
2
u
F
/5
0
V
C
2
2
5
0
.2
2
u
F
/5
0
V
C223
0.22uF/50V
C224
0.22uF/50V
C227
0.022uF/50V
R241
68
ZD201
12V
POWER
+5V
VCL-2
1 3
2
VR201
B50K
1 3
2
VR202
B50K
+15V
+5V
R
2
4
2
4
7
K
C
2
3
0
0
.1
u
F
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