Model RK100PK and RK100PKW Microflex®
Preamplfier Kit User Guide
5. Insert the rubber flex relief (G) into the cap (C) and feed
INSTALLATION - RK100PK (BLACK), RK100PKW (WHITE)
through the microphone cabling.
The RK100PK and RK100PKW preamp comes assembled for
use with microphones using a miniature 4-pin connector. To wire a
microphone cable directly to the preamp, follow these instructions:
Note: You will need to reuse the rubber flex relief from your old
preamp. If the rubber flex relief is unavailable, please contact the
Shure Service Department.
1. Turn screw (A) counter-clockwise until it recedes below
the case.
G
2. Remove the cap (C) by removing the set screw (B) with
the provided hex wrench (.05 in.).
C
C
B
FIGURE 3
6. Solder the wires directly back onto the circuit board.
Match wires as marked on the circuit board using the fol-
lowing key:
R = RED
B = BLACK
A
S = (GROUND) SHIELD
FIGURE 1
3. Push the circuit board out from the case interior to expose
the black and red wires (D).
R
R
B
S
4. Unsolder the wires from the circuit board (E).
FIGURE 4
7. Push the circuit board back into the case, making sure
that the set screw (A) is lined up with the screw hole in
the side of the case (if the circuit board does not go in
all the way, twist it slightly until the screw and hole are
aligned). Raise the set screw (A) by turning clockwise
so that the preamplifier is held securely in place. Screw
on the cap (C). Do not use the set screw with the cap.
D
F
E
FIGURE 2
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27A3252 (Rev. 1)
Printed in U.S.A.
©2007, Shure Incorporated
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