11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
Product
Date:
Filename:
PCB#
M1238V300sch.sch2002
K4
Wed Feb 20, 2008
M1238
of
Sheet
Rev:
4
2
3V00
Product
Date:
Filename:
PCB#
M1238V300sch.sch2002
K4
Wed Feb 20, 2008
M1238
of
Sheet
Rev:
4
2
3V00
4148
D27
0A45
1/4W
4R7
R97
.
1/4W
18R
R96
.
1.0W
4K7
R84
.
4148
D55
4148
D54
1/4W
1K
R99
.
3
W34:C 4
CURRENT LIMIT
R98
1/4W
.
68R
TP6
TP5
3
W47:C
4
W41
RED
4
W34:D 4
2
W34:B 4
R94
1/4W
.
10K
1/4W
2K
R172
.
1/4W
.
2K
R88
1/4W
2K
R89
.
IN FROM M1239
PRE-AMP
4148
D28
0A45
D31
0A45
4148
4148
D18
1/4W
2K
R106
.
4148
D16
1/4W
.
249R
R177
1/4W
.
249R
R176
D23
0A2
BAT85
D22
0A2 BAT85
1/4W
10K
R105
.
C37
100V
100P
R93
1/4W
.
10K
1/4W
.
4K99
R175
1/4W
.
4K99
R178
R125
1/4W
.
270K
R113
1/4W
.
270K
R91
1/4W
.
2K05
4
6
5
4N35
U13:B
6880
1/4W
75R
R104
.
M
Lin
4529
470R
P1
.
Q40
5102
BC560C
TO92
1/4W
4R7
R102
.
Q26
5101
BC550C
TO92
C77
63V
1U
Q34
5102
BC560C
TO92
Q23
5101
BC550C
TO92
TO92
BC560C
Q42
5102
R190
1/4W
.
47K
4148
D19
BD237
6787
Q27
TO126
.
R201
1/4W
.
100R
R199
1/4W
.
100R
1.0W
4K7
R111
.
5.0W
0R18
R95
.
R204
1/4W
.
100K
R207
1/4W
.
22M
R208
1/4W
.
15K
R203
1/4W
.
200K
R194
1/4W
.
22M
R193
1/4W
.
15K
5.0W
1K
R112
.
1N4745A
D20
1W0
16V0
1N4745A
D17
1W0
16V0
5.0W
1K
R85
.
1/4W
49K9
R205
.
R206
1/4W
.
47K
8
V+
4
V-
U14:C
R110
1/2W
.
150R
R114
1/2W
.
150R
50V
C36
68N
R83
1/2W
.
150R
W40
WHT
8
V+
4
V-
U6:C
1
W34:A 4
C41
50V
470N
D26
0A45
4148
R116
1/4W
.
47K
U6:B
NE5532N
U4:A
TL072
8
V+
4
V-
U4:C
R117
1/4W
.
22K
R108
1/4W
.
4K12
R87
1/4W
.
2K87
R187
1/4W
.
470R
R186
1/4W
.
220K
1/4W
4K12
R119
.
Q32
5102
BC560C
TO92
1/4W
4K12
R80
.
R189
1/4W
.
20K
1/4W
150R
R120
.
1/4W
150R
R81
.
BD238
6788
Q33
TO126
.
R202
1/4W
.
100R
R200
1/4W
.
100R
5.0W
0R18
R101
.
U1
5
:E
R86
1/2W
.
150R
R109
1/2W
.
150R
50V
68N
C44
R82
1/2W
.
150R
2
W10:B
4
R191
1/4W
.
100K
LIMITER DRIVE
R124
1/4W
.
47K
C42
100V
27P
X77
R92
1/4W
.
10K0
63V
C40
1U
4
W10:D
4
3
W10:C
4
1
W10:A
4
1/4W
.
4K99
R174
U12:A
TL072
1/4W
.
4K99
R173
1/4W
MINI
10K0
R179
RED
LD1
6405
.
1N5225B
3V0
D56
0W5
C45
50V
5N6
4148
D24
R103
1/4W
.
47R
D21
0A2 BAT85
R90
1/4W
.
47R
C39
50V
680P
D15
0A2
BAT85
Q25
5101
BC550C
TO92
C35
50V
12N
(VCC)
LM13600N
Dual VCA
6745
U15:D
{Function}
1/4W
3K
R185
.
1/4W
470R
R188
.
TO92
BC550C
Q41
5101
400V
C26
1N
POWER AMPLIFIER
4007
D25
63V
C43
470U
TO3
6910
Q30
MJ21195
63V
C38
470U
R198
1/4W
.
33K
R195
1/4W
.
33K
U14:B
MC33078P
R192
1/4W
.
47K
12" 2R 170WPGM
WOOFER
SP5
7388
2
4
W47:B
R107
1/4W
.
12K1
TO92
Q29
5119
2N5638
R100
1/4W
MINI
10K0
1/4W
.
10K0
R180
8
V+
4
V-
U12:C
U12:B
TL072
RED
LD2
6405
.
1/4W
10K0
R118
.
Q31
5102
BC560C
TO92
U4:B
TL072
1
2
4N35
U13:A
6880
1/4W
10K0
R79
.
4148
D13
(VCC)
LM13600N
Dual VCA
6745
U15:C
{Function}
WITH AMP COLD
ADJUST P1 FOR
2 mV ACROSS TP5
AND TP6
MJ21196
6909
TO3
Q28
W8
{Function}
{AWG}
RED
R197
1/4W
.
33K
R196
1/4W
.
33K
4007
D14
U14:A
MC33078P
LM13600N
U15:A
LM13600N
U15:B
WARNING: 120 VDC IS BETWEEN C55 TO GROUND.THIS PRESENT A SIGNIFICANT SCHOCK HAZARD. PLEASE, USE EXTREME CAUTION WHEN SERVICING!
TO92
Q24
5122
J109
U6:A
NE5532N
S
T
R
-
-
-
J3
SUB-OUT
Содержание Keymaster K4
Страница 13: ...SEE LAYOUT DIAGRAM ...
Страница 14: ......
Страница 19: ......
Страница 20: ......
Страница 22: ......
