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A
B
C
.
10K0
1/4W
R131
W42 WHT
W7 RED
1
10U
R183
1/2W
C14
V1:C
18R
160V
.
2X_TRIODE_HCT
W1 GRN
W9
1N5359B
5W0
BLK
24V0
ZD1
24V0
1N5359B
ZD2
5W0
R133
1/4W
C1
220R
2
22N
50V
.
C3
R5
1M
680P
.
R9
50V
0 dB INPUT
1/4W
24K
.
J2
S
R
T
Gold
Gold
Gold
3
SOLID STATE PREAMP
C82
22N
50V
C84
R141
R20
-6 dB INPUT
680P
1M
1/4W
50V
.
24K
.
4
J5
S
R
T
Gold
Gold
Gold
R142
1K5
5
W8:M
W11:M
.
R59
10K0
6
1/4W
1/4W
249R
R122
.
TO TUNER JACK
TUNER OUT
W8:N
W11:N
U11:A
.
J7
S
R
T
10K
1/4W
R57
R119
-
-
-
1/4W
U11:C
249R
7
.
TL072
U11:B
.
.
10K0
10K
1/4W
1/4W
R120
R121
8
9
M1341 HISTORY TABLE
MODEL(S):-
DB800H
#
DATE
VER#
DESCRIPTION OF CHANGE
10
1
30-MAY-2008
1.00
RELEASED FOR PRODUCTION
2
20-NOV-2088
2.00
PC7669, ADD ROUTING UNDER J7
3
07-JAN-2010
3.00
PC7872: Replace C58 with 2x1N5359B #6875
4
.
.
Update parts and board
5
D
V
N
6
D
V
N
7
D
V
N
8
D
V
N
9
D
V
N
10
D
V
N
11
11
D
V
N
12
D
V
N
13
D
V
N
A
B
C
D
E
F
G
FOOTSWITCH_DRV_CTRL[G8]
R23
INPUT[M3]
113K
.
100V
22N
C63
R11
150K
TUBE PREAMP
.
12AX7
V1:B
R161
1M
2X_TRIODE_HCT
.
R53
470R
PREAMP
.
INPUT SELECTOR
SELECT
S1:A
SWITCH
U13:B
C89
22U
U13:A
R144
50V
U13:C
1/4W
TL072
10K
TL072
MINI
R143
R145
1/4W
1/4W
10K
10K
.
MINI
C90
680P
100V
R46
R47
1/4W
1/4W
2K2
2K2
MINI
MINI
82N
C13
50V
R41
1/4W
2K
MINI
100K
D25
1B
MC33079P
TL072
4148
R14
4469
1/4W
U2:D
10K
P12:A
MINI
M
GAIN
C57
2U2 63V
EFX-MASTER[L6]
2N5401
2N5551
MPSA06
MPSA43
MPSA56
BC560C
5
4
6
3
7
2
8
1
9
C
B E
E
B C
TO-92
TO-92
M1341
DB800H
MODEL(S):-
REF
FUNCTION
PART#
KNOB
P4 , P5
DRIVE MIX , RESO/
4467
8400
P12 / P19
GAIN , MID-FREQ
4469
8400
P1
DISTORTION
4470
8400
P15
HI-MID
4471
8400
P16
TREBLE
4471
8400
P17
LOW-MID
4471
8400
P18
BASS
4471
8400
P3
MASTER
4472
8400
P7
EFFECTS
4472
8400
P8
SCOOP
4472
8400
P13
COMPRESSOR
4474
8400
P2
FREQUENCY
4475
8400
D
E
F
G
H
I
J
MC14007
U23:A
Refer to sheet
R74
1/4W
4K99
D10
D7
4148
4148
S1:B
R76
4K99
63V
INPUT[P7]
C77
VCA
27P
100V
V+
R134
U9
1/4W
EC-
2180LB
R26
20K
C46
.
1/4W
-IN
NE5532N
10U
16V
SYM
20K
.
EC+
GND
V-
U10:A
R28
5K1
STYLE P36
STYLE P35
STYLE P35
STYLE P35
STYLE P35
STYLE P35
STYLE P35
STYLE P35
STYLE P35
"STYLE_P35"
"STYLE_P36"
"STYLE_P37"
STYLE P35
STYLE P36
STYLE P37
H
I
J
K
L
M
DISTORTION
R213
1/4W
10K
MINI
FOOTSWITCH_DRV_CTRL[G8]
INPUT[H1]
U2:B
R212
63V
4U7
1/4W
C93
20K0
MINI
D4
D3
MC33079P
4148
4148
R75
1/4W
10K
R92
MINI
1/4W
10K
MINI
MC33079P
C66
U2:E
4U7
63V
U2:A
COMPRESSOR
CONTROL
& DETECT
.
COMPRESSOR
R60
D19
10K0
2U2
1/4W
M
1/4W
C9
20K
R139
100K
P13:A
4148
.
B
4474
MC33078P
.
4148
10K0
U14:C
1/4W
R136
D29
U14:B
.
10K0
R137
Refer to sheet EQ
OUT TO U5 PIN 3
PAGE 2
K
L
M
N
O
P
DISTORTION MIX
M
P4:A
10K
4467
B
R62
10K
U23:C
.
MC14007
D2
D1
4148
4148
LD7
RED
6405
COMP-LED
MPSA06
U14:A
D11
R94
Q4
1/4W
5103
20K0
4148
TO92
MC33078P
MINI
470N
R8
C50
15K
50V
.
R135
1K
R93
.
1/4W
20K0
INPUT[H6]
MINI
EFX-MASTER[G3]
Product
Product
DB800H
DB800H
INPUT
INPUT
PCB#
PCB#
M1341
M1341
Sheet
Sheet
Date:
Date:
Mon Jan 11, 2010
Mon Jan 11, 2010
Rev:
Rev:
V300
V300
Filename:
Filename:
M1341V300sch.sch2002
M1341V300sch.sch2002
N
O
P
Q
1
2
3
4
5
6
7
8
9
10
2
2
of
of
7
7
11
Q
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