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1
2
3
A
B
CHANGE HISTORY
#
DATE
VER#
PC#
DESCRIPTION OF CHANGE
1
27-MAY-2011
V01
.
Release
C
2
08-MAY-2012
.
8391
PC8391: added note for Japanese version. ML
3
05-MAR-2013
.
.
Added voltages on schematic and pots list. ML
4
23-OCT-2014
V02
.
Converted to Altium, DS, implement rework. GG
5
.
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.
6
.
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7
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8
.
.
.
.
D
9
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10
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11
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12
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13
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E
F
G
H
I
J
THIS SHEET CONTAINS A CHANGE HISTORY LOG, A LIST OF THE POTS & KNOBS AND A LEADS & PINS REFERENCE SECTION.
K
1
2
3
4
5
6
7
DESIGN HISTORY AND INFORMATION
4
5
6
7
8
9
10
11
POTENTIOMETERS AND KNOBS
POTENTIOMETERS AND KNOBS
REF
FUNCTION
P1
GAIN
P2
CLEAN VOLUME
P3
VOLUME
P4
BASS
P5
TREBLE
P6
MID
P7
REVERB
P9
MASTER
.
.
.
.
.
.
.
.
.
.
LEADS AND PINS REFERENCE
BC550C (YS#5101)
J111
BC560C (YS#5102)
TO-92
D
G
S
C
B
E
YS#5119
MC7815CT
MC7915CT
I
G
O
G
I
O
YS#6872
YS#6871
8
9
10
11
12
13
14
POT#
STYLE
KNOB#
4425
P32
8430
4425
P32
8430
4425
P32
8430
4425
P32
8430
4424
P32
8430
4423
P32
8430
4462
P32
8430
4430
P34
8430
.
.
.
"STYLE_P34"
.
.
.
"STYLE_P32"
.
.
.
.
.
.
.
.
.
H
H
H
1P
H
NC
5
5
4
6
4
6
2K
1G
K
3
7
3
P
G3
7
2G
8
1K
2
NC
G1
2
8
1
9
1
9
2P
HT
G2
NC
12AX7A
EL84
DUAL TRIODE
PENTODE
DUAL-OPAMP
DUAL-OPAMP
1
+V
8
1
+V
8
A
A
2
7
2
7
B
B
3
6
3
6
4
-V
5
4
-V
5
YS#6882
YS#6884
TL072
NE5532N
Section:
Product(s):
PCB#:
M666
Modified:
10/29/2014
12
13
14
15
16
17
A
B
C
D
E
F
G
H
I
J
Design History And Information
YGL2
K
Rev#:
EML Rev#:
Sheet
Of
V02
01
4
4
File:
Tmp Rev:
History.SchDoc
V031
15
16
17
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