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A
B
C
1
2
3
BLK
3414
.
.
SW
DPDT Switch
BLK
F1
W14
SW
W17
FUSEHOLDER
CSA-5 A / 120 V
S1
4
AC-BLK
W19
.
GRN
W20
C64
4N7
250V
CHASSIS GND
W21
5
SW-WHT
XFMR-BLK
IEC_RECT
6
CE-T3.15 A / 230V
SCH_DPDT
FUSE
{Value}
F2
2
1
BROWN
4
3
BLUE
S4
GRN/YELL
7
C64
W7
EUROPEAN POWER SUPPLY
8
9
M1238 DATABASE HISTORY
MODEL(S):-
K4
#
DATE
VER#
DESCRIPTION OF CHANGE
1
08-FEB-2007
1.00
FIRST PROTO
10
2
08-MAR-2007
2.00
REPLACE OPTOCOUPLER
3
.
.
PC#7281,CHANGE W3,W6,W8 & W9 TO NORMAL EYELET
4
13-FEB-2008
3.00
PC#7291,REPLACE FAN EYELETS WITH MOLEX.
5
.
.
PC#7277,VALUE CHANGE PRIME CE F1 TO T3.15A #2475.
6
.
.
PC#7437,REDUCE HUM,ISOLATE AC SECTION.
7
.
.
NODE N122 DELETED.
8
.
.
FORCE UPDATED
9
.
.
PC#7592, NEW #6787 & #6788 NEED NO THERMO PAD
10
D
V
N
11
D
V
N
11
12
D
V
N
13
D
V
N
A
B
C
D
E
F
G
1N5251BRL
D33
22V0
0W5
1U
C9
63V
D38
D39
4007
4007
D40
XFMR-BLK
W18
6A2
GRY
D44
W23
FUSEHOLDER
5
6A2
D41
RED
6
W24
6A2
5 AMP SB
4
T1
6A2
XFMR
TUBE/AG1
W13
D42
YEL
22N
BLK
W25
3
C61
6A2
275V
W26
W50_ BLU
RED
TUBE AG2
D45
2
D46
GRY
6A2
7
W27
1
D43
W22
FUSEHOLDER
6A2
D47
6A2
BRN/BLK
240VAC
XF1_
CH1339E
.
BRN
W18
4N7
22N
230/240VAC
C61
50Hz
.
250V
50V
W22
BLU
POT LIST
K4
MODEL(S):-
REF
FUNCTION
PART#
KNOB
P2
CH-4 GAIN
4032
9922
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
R
F
P
K
D
E
F
G
H
I
J
R126
1U
5K6
1U
C48
.
C49
63V
63V
TUBE120VDC
R128
1/4W
D34
RED
1M
C52
.
220U
160V
R130
4007
4007
2K2
D35
220U
.
D36
R131
D37
4148
1/2W
160V
22R
4007
.
220U
C58
160V
W50 BLU
TUBE AG2
W28_ BRN
3300U
F2
C59
50V
3300U
C60
50V
W43_
W9
BLK
BLK
FAN-AG
SPKR/AG
3300U
5 AMP SB
3300U
C63
C62
50V
F3
50V
W29_ WHT
BD139
BD237
2N5401
BD238
2N5551
MJE340
MPSA06
MJE350
MPSA13
MJE271
MPSA43
MJE270
MPSA56
BD140
2N5638
MPSA63
D
E
B C
{NEW}
TO-92
E C B
TO-92
N
N
N
N
N
N
N
N
N
N
N
N
H
I
J
K
L
M
W28
R127
BRN
1.0W
1R
WHT
U10
+29VDC
FLMP
W11
W12
R129
MC7815CT
IN
OUT
1.0W
1R
REF
FLMP
33P
1U
6872
C53
C54
C55
50V
63V
R132
1.0W
1R
W29
FLMP
WHT
-29VDC
100N
100N
100N
C65
C67
C69
63V
63V
63V
100N
100N
100N
100N
C70
C66
C68
63V
63V
63V
63V
J109
BC550C
BC560C
C
B E
S G
TO-92
6840_PC
6882_PC
K
L
M
N
O
P
U9
MC7815CT
IN
OUT
REF
33P
1U
6872
C50
C51
50V
63V
33P
1U
C56
C57
6871
50V
63V
REF
IN
OUT
MC7915CT
U11
100N
100N
100N
100N
100N
C71
C83
C88
C46
C75
63V
63V
63V
63V
63V
100N
100N
100N
100N
C72
C89
C47
C76
C84
63V
63V
63V
63V
1
4
W2:A 4
4
W5:D
2
3
W2:B 4
4
W5:C
3
2
W2:C 4
4
W5:B
4
1
W2:D 4
4
W5:A
6884_PC
6804_PC
6745_PC
Product
Product
K4
K4
PCB#
PCB#
M1238
M1238
Sheet
Sheet
Date:
Date:
Wed Feb 20, 2008
Wed Feb 20, 2008
Rev:
Rev:
3V00
3V00
Filename:
Filename:
M1238V300sch.sch2002
M1238V300sch.sch2002
N
O
P
Q
1
2
3
4
5
6
7
8
9
10
3
3
of
of
4
4
11
Q
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