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Filename:
PCB# Sheet 42
Product
Date: Rev: YsType:CSA#
M1237-1V01sch.sch2002
M1237
POWER SUPPLY
Fri Apr 07, 2006 V1.01
K2
of
Filename:
PCB# Sheet 42
Product
Date: Rev: YsType:CSA#
M1237-1V01sch.sch2002
M1237
POWER SUPPLY
Fri Apr 07, 2006 V1.01
K2
3
1
50V
BRN
6
5
W31
4
XF1_
1
2
3
2
4
{Value}
1
F2
22N
W34
1/2W
4K7
R51
.
4007
D46
NE5532N
GRN/YELL
BROWN
MC33078P
T 1.6 AMP
SCH_DPDT
FUSE
CE- T1.6 A/ 230 V
C34
250V4N7
MC33079P
250V
C34
2
TBKR1
SCH_BREAKER
50Hz
.
C36
.
240VAC
BLK
D48
6A2
6A2
D47
4007
D60
BLUE
W33
WHT
AC
CSA-3 AMP/ 120 V
F1
W29
BRKR
RED
4N7
13A/ 85C
W34
XFMR
BLK
W31
XFMR
BLK
RED
W37
BRKR
BLU
230/240VAC
DUMMY W38
XFMR
W35
RED
XFMR
W32
GRY
XFMR
W39
GRY
XFMR
W40
RED
D50
0W5
22V0
1N5251BRL
CH1339E
6A2
D53
D49
1N5402
D44
1N5402
6A2
D45
1N5402
D52
1N5402
D54
4148
D51
1/4W
5K6
R50
.
35V
C28
1000U
R147
1/2W
.
22R
50V
C29
3300U
50V
C20
3300U
4007
D4
RED
120VDC
W24
100V
C54
100N
100V
C70
100N
100V
C68
100N
W2
TUBE-AG
R202
1/2W
.
18R
50V
C7
33P
100V
C49
100N
100V
C47
100N
63V
C37
1U
W6
+15VT
WHT
100V
C12
100N
100V
C71
100N
{Value}
IEC_RECT
275V
C36
22N
XFMR
YEL
W36
63V
C73
1U
H/P-AG
W23
4007
D55
R148
1/4W
.
1M
35V
C30
1000U
TUBE/AG
BLK
W41
160V
C39
220U
100V
C52
100N
100V
C69
100N
100V
C67
100N
50V
C10
33P
V1:C
100V
C48
100N
100V
C46
100N
63V
C31
1U
100V
C11
100N
100V
C43
100N
SG
TO-92
2N5638
D
BE
TO-92
BC560C
C
BC550C
CB
TO-126
MJE350
MJE340
BD238
MJE270
BD139
BD140
E
BD237
MJE271
W7
BLU
R42
1.0W
FLMP
1R
AG=AMP GROUND
IG =INPUT GROUND
SG=SIGNAL GROUND
NORTH AMERICAN POWER SUPPLY
GRN
CHASSIS-GND
W26
Thermal Breaker
SCH_BREAKER
S6
W30
SW
BLK
1/4W
2K2
R58
.
BLU
W8
F2
1-AMP-SB
1-AMP-SB
F3
4007
D3
C38
160V220U
63V
C22
470N
100V
C26
100N
100V
C66
100N
100V
C51
100N
100V
C76
100N
W1
15VT
WHT
R14
1.0W
FLMP
1R
OUTIN
GND
MC7915CT
6871
U18
TO220
OUTIN
GND
MC7815CT
6872
U24
TO220
100V
C41
100N
63V
C6
1U
7
6
1
2
3
4
5
GENERIC_XF_2S_1P
T1
CH1339
160V
C40
220U
LD6
6554
POWER
BLU
100V
C25
100N
100V
C65
100N
100V
C50
100N
100V
C75
100N
100V
C27
100N
BCE
MPSA56
MPSA06
2N5401
TO-92
MPSA63
MPSA43
2N5551
EUROPEAN POWER SUPPLY
AC/SW-BLK
SPST Switch
SCH_SPDT
S5
WARNING! 120V DC IS PRESENT BETWEEN C40 TO GROUND DISCHARGE BEFORE SERVICING
USE 10K 1/4 W ACROSS W24 AND W41 TO DISCHARGE.
REF KNOBPART#
MODEL(S):-
FUNCTION
S3
R
P8
P4
P2
P7
P10
P9
P3
P5
P6
P1
VOICING SW
F
TREBLE
MASTER
MONITOR GAIN
TREBLE
BASS
MID
CH-2 GAIN
BASS
MID
CH-1 GAIN
8400
K
8399
8399
9922
8399
8399
8399
8399
8399
8399
8399
3393
P
4453
4452
4454
4453
4453
4453
4452
4453
4453
4452
POT LIST
N
N
N
N
N
N
N
N
N
N
N
{NEW}
N
K2
13
10
7
4
1
9
11
12
8
#
2
3
5
6
VER#
MODEL(S):-
DATE DESCRIPTION OF CHANGE
V
V
V
V
V1.00
V
V
V
V
V
V
.
V1.01
D
D
D
D
FEB-27-2006
N
N
N
N
FIRST RELEASE
K2
D
D
D
D
D
D
.
N
N
N
N
N
N
4K99 4639, R130 20K 4885 --> 4838 100K,CHANGE HPF FRQ
PC#7089:AH:R44 4829 10K --> 4639 4K99, R48 10K 4829 -->
M1237-01.PCB_DATABASE_HISTORY
APR-07-2006