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CHANGE HISTORY
#
DATE
VER#
PC#
DESCRIPTION OF CHANGE
C
27-OCT-2016
V01
RELEASED FOR PRODUCTION
1
07-JUL-2017
V01
9077
REMOVE SIL PADS YS# 3797 AND CHANGE SCREW 8741 TO 8871
2
2-NOV-2017
V01
9114
Changed R225 and R249 from 22R(YS#7930) to 10R (YS#7852)
3
Changed D203A and D206A from BAT54 (YS#7944) to BAT750 (YS#9106)
4
Change R219 from 470R (YS#7856) to 475R (YS#7673)
5
Change R264 from 1K62 (YS#8137) to 1K4 (YS#9107)
6
Add 12K1 0603 resistor (YS#7761) between pin 3 and pin 4 of U201
7
D
For M1693 PCB Only:
8
Change Q203A and Q205A from IRGP50B60PDPbF (YS#2385) to
9
IRGP50B60PD1PbF (YS#2496)
10
V01
9134
For M1692 PCB Only:
11
10-NOV-2017
Change Q203A and Q205A from IRGP50B60PDPbF (YS#2385) to
12
IRGP50B60PD1PbF (YS#2496)
13
E
#
DATE
VER#
PC#
DESCRIPTION OF CHANGE
26-NOV-2017
V02
9114
Add two 150pF 100V capacitors (YS#5982) between PS_GND and pin 1 and pin 4 of W402
1
Change C309 connection from before L300 to after L300
2
20-DEC-2017
V02
Added M1690(ES21P) and M1691(ES12P) to board
3
18-DEC-2017
V02
Added 5 test points for Test & Repair
4
22-DEC-2017
V02
V02 Released
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#
DATE
VER#
PC#
DESCRIPTION OF CHANGE
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THIS SHEET CONTAINS A CHANGE HISTORY LOG, A LIST OF THE POTS & KNOBS AND A LEADS & PINS REFERENCE SECTION.
K
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3
4
5
6
7
DESIGN HISTORY AND INFORMATION
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POTENTIOMETERS AND KNOBS
POTENTIOMETERS AND KNOBS
REF
FUNCTION
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PINOUT DIAGRAMS
CASES AND PINS
IRS21844S
NJM7815
1
IN
NC
14
SD
VB
2
13
VSS
HO
3
12
4
DT
VS
11
5
COM
NC
10
6
LO
NC
9
7
VCC
NC
8
I
G
#6686
#6856
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POT#
STYLE
KNOB#
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IRGP50B60PDPBF
IRGP35B60PDPBF
NJM7915
TO-247AC
G
D S
O
G
I
O
#6857
#2496 #2307
Section:
Product(s):
X8024
PCB#:
2018-01-31
Modified:
12
13
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15
16
17
A
B
C
D
E
F
G
H
I
J
Design Information And History
ES12P/ES15P/ES18P/ES21P/PSA1S/PSA2S
K
V02
01
2
3
Rev#:
EML Rev#:
Sheet
Of
History.SchDoc
V028
File:
Tmp Rev:
15
16
17
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