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CHANGE HISTORY
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DATE
VER#
PC#
DESCRIPTION OF CHANGE
C
14-MAR-2017
V01
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RELEASE FOR PRODUCTION
1
01-SEP-2017
V02
9101
ADDED U10 MEMORY CHIP FOR BLUETOOTH
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17-SEP-2018
V03
9233
Changed LEDs on pcb to smt LEDs to accommodate light pipes
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9323
Added NS21P option
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DESCRIPTION OF CHANGE
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#
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DESCRIPTION OF CHANGE
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J
THIS SHEET CONTAINS A CHANGE HISTORY LOG, A LIST OF THE POTS & KNOBS AND A LEADS & PINS REFERENCE SECTION.
K
1
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7
DESIGN HISTORY AND INFORMATION
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11
POTENTIOMETERS AND KNOBS
POTENTIOMETERS/SWITCHES AND KNOBS
REF
FUNCTION
S1
MODE SELECT
S4
HF ROLL OFF
P5
GAIN
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PINOUT DIAGRAMS
IRG4PC50W
2N6517
TO-247AC
TO92
E B C
G
D S
8
9
10
11
12
13
14
POT/SW YS#
STYLE
KNOB#
4202
ROT
8653C
4202
ROT
8653C
2339
P34
8653C
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2SB1647
TO3P
E B C
Section:
Product(s):
M1696
PCB#:
2019-10-16
Modified:
12
13
14
15
16
17
A
B
C
D
"STYLE_P32"
E
F
G
H
I
J
Design Information And History
ES12/15/18/21P
/NS21P
K
V03
XX
1
*
Rev#:
EML Rev#:
Sheet
Of
History.SchDoc
V031
File:
Tmp Rev:
15
16
17
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