K2 Internal Mic Adaptor (IMA) User’s Guide – 23 July 2013
15
Schematic
Mic Extender Board (MEX)
Rework Eliminator is a trademark of Ken Kaplan and Gary Hvizdak
Copyright ©
2007 –
2012,
all rights reserved.
P2
Mic Patch Panel Board
(MPP)
BIAS
(P2
-B1)
Rework Eliminator™ Internal Mic Adaptor
By Rev. Date Sheet
G.
Hvizdak C 10
AUG ’
12 1 of
1
Note DOWN
(J1
-5)
is hardwired to MIC3 (
J1-6
).
Note GND (J
1-13
) is hardwired to MIC7 (J1-14).
MIC4 (to P2-
A2)
MIC2
(to P2-
B7)
AF
(to P2
-C
3)
MIC6 (
to P2-
C6)
MIC1 (
to P2-B
3)
GND
(to P2
-C5)
GND (to P
2-A
7)
P1B
To MEX
-P1
A
2
1
4
3
6
5
12
11
8
7
10
9
UP (to P2-A3)
MIC8 (to P2-
C4)
PTT
(to P2-
B6)
FUNC
(to P2
-B4)
+5V
(to P2-
A5,
C7)
MIC5 (
to P2-
B5)
P1A
To MPP-P1B
MIC
4
MIC2
AF
MIC6
MIC1
2 4 6 128 10
1 3 5 117 9
UP
MIC8
PTT
FUNC
+
5V
MIC
5
MIC5
MIC6
MIC8
MIC
1
MIC
2
MIC4
14
13
16
15
J1 To K2 FP-P1
1 3
6
5
12
11
8
7
10
9
FUNC
+
5V
AF
PTT
< DOWN >
UP
< MIC3 >
< MIC
7 >
<
GND >
GND
GND
4
2
R3 (
to P2
-A1
)
BYPASS (P2
-C2)
R1
5.6K
R2
3.
6K
R3
820
R2 (to P
2-B2)
R1 (to P2-C1)
