Publicité
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CHANGE HISTORY
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DATE
VER#
PC#
DESCRIPTION OF CHANGE
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23-JAN-2013
V01
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FIRST PRODUCTION RELEASE. - ML
2
15-APR-2013
.
.
Modified schematic to reflect rework done on V01 boards. See power supply section. - ML
3
25-APR-2013
V02
8525
Added 5V6 zeners in series with the linear regulators. - ML
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.
8518
Moved C26 away from Q5. - ML
D
5
03-JUL-2013
V03
8548
Moved C43 away from C42. - ML
6
21-OCT-2013
V04
8579
Changed XLR connector J3 to YS#4140. - ML
7
20-DEC-2013
V04
8618
Substituted YS#5255 (1u 63V) for 5254 (1u 63V). See PC for details. - ML
8
MAY-22-2014
V05
8632
GND scheme changed (see PC for details)
9
NOV-13-2014
V05
8733
R106 and R127 changed from 1K0 (7621) to 470R (#7856).
10
R109 and R125 changed from 33K (#7863) to 27K4 (#7636).
11
.
8734
Tack on two diodes#6438 (1N4007) on U1 and U2 as per PC#8734 V05 and earlier version.
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12
NOV-25-2014
V06
8734
D25,D26 #6438 (1N4007) added across the output of 7815 and 7915 regulators.
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F
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THIS SHEET CONTAINS A CHANGE HISTORY LOG, A LIST OF THE POTS & KNOBS AND A LEADS & PINS REFERENCE SECTION.
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All manuals and user guides at all-guides.com
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DESIGN HISTORY AND INFORMATION
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POTENTIOMETERS AND KNOBS
REF
FUNCTION
P1
LINE IN LEVEL
P2
TREBLE
P3
BASS
P4
MIC LEVEL
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LEADS AND PINS REFERENCE
IRFP140N (YS#6931)
IRFP9140N (YS#6932)
TO-247AC
G
D S
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POT#
KNOB#
STYLE
4434
8653
P32
4434
8653
P32
4435
8653
P32
4432
8653
P32
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"STYLE_P32"
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2SD2560 (YS#6805)
2SB1647 (YS#6812)
TO3P
2N6517 (YS#6854)
TO92
B C E
E B C
Section:
Product(s):
PCB#:
M1535
Modified:
27/11/2014
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A
B
C
D
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Design Information And History
NX25P-2
K
Rev#:
V06
EML Rev#:
03
Sheet
5
Of
5
File:
History.SchDoc
Tmp Rev:
V23
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Publicité
