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CHANGE HISTORY
#
DATE
VER#
PC#
DESCRIPTION OF CHANGE
1
2018-10-30
V01
9145
New SMT version from the input section of M1555
2
2019-01-14
V01
9337
Remove R240 and replace attributes with Do Not Stuff (DNS)
3
.
.
.
Replace R81 from 10k0 to 4k99 YS#7679
4
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.
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Replace R66 from 27k4 to 13k YS#7627
5
.
.
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Replace R136 from 2k21 to 681R YS#7646
6
.
.
.
Remove D65
7
V01
9350
Added D65 back. Connected D14 cathode to D65 cathode in both schematic & PCB.
2019-03-19
8
2019-03-22
V02
.
Released V02
9
2022-11-02
V03
9838
Updated footprints of pots and switches for improved manufacturing
.
10
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.
11
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12
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13
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THIS SHEET CONTAINS A CHANGE HISTORY LOG, A LIST OF THE POTS & KNOBS AND A LEADS & PINS REFERENCE SECTION.
DESIGN HISTORY AND INFORMATION
POTENTIOMETERS AND KNOBS
POTENTIOMETERS AND KNOBS
REF
FUNCTION
POT#
STYLE
KNOB#
P1
MAIN GAIN
4434
P32
9916
P2
MIC GAIN
4432
P32
9915
P3
BASS CONTROL
4435
P32
9917
P4
CD/LINE GAIN
4432
P32
9915
P5
TREBLE CONTROL
4434
P32
9917
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LEADS AND PINS REFERENCE
"STYLE_P32"
NE5532N (YS#6884)
MC33078 (YS#6840)
NSL-32SR2 (YS#6858)
TL072 (YS#6882)
1
4
1
+V
8
2
3
A
2
7
B
3
6
MC33079 (YS#6804)
4
-V
5
1
14
1
4
2
13
3
12
4
+V
-V
11
5
10
6
9
2
3
7
8
LM13600N (YS#6745)
16
15
14
13
12
11
10
9
V-
1
2
3
4
5
6
7
8
Design Information And History
Section:
NX55P-2
Product(s):
PCB#:
M1557
Rev#:
V03
Eng:
T. Wood
Sheet
5
Of
5
Modified:
2022-11-03
File:
History.SchDoc
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