Shure R174 User Manual

BETA 57A
SCREEN AND
GRILLE ASSEMBLY
RETAINING
RING
BETA 56
FIGURE 1
CARTRIDGE REPLACEMENT
The Shure Model R174 is a direct replacement cartridge for Shure
Models BETA 56 and BETA 57A supercardioid dynamic micro-
phones. The R174 offers the same high-quality performance as
the original cartridge.
SHURE MODEL BETA 57A
To install the R174 replacement cartridge in the BETA 57A, pro-
ceed as follows:
1. Using a small flathead screwdriver, turn the XLR setscrew
counterclockwise and remove the XLR connector.
2. Unsolder the BLUE and RED lead wires of the old cartridge
from pins 2 and 3 of the XLR connector.
3. Unscrew and remove the screen and grille assembly, see
Figure 1.
4. Remove the cartridge retaining ring using a set of snap-ring
pliers. Insert both needles of the pliers into each of the holes
on the ring. Close the pliers so that the ring compresses
slightly, then remove the ring.
NOTE: The recommended snap-ring pliers are approximately
7-3/4" in length, with a 90° angle tip, 1"-2" ring range, and a
.070" tip diameter (McMaster-Carr #5415A33 or equivalent).
©2005 Shure Incorporated
27C2919 (Rev. Rev. 6)
TIGHTEN
CARTRIDGE
LEADS
CASE
EXTENSION
SPRING
STAND ADAPTER
XLR SETSCREW
LOOSEN
5. Remove the cartridge and attached leads from the case.
6. Run the leads from the new cartridge through the handle, so
the leads come out on the XLR end.
7. Insert the new cartridge in the case, making sure it is properly
seated in the notches provided. Also make sure that the wire
leads are aligned with the nameplate and that they are not
pinched between the cartridge and case.
8. Using snap-ring pliers, insert the retaining ring into the groove
inside the handle, securing the cartridge in place.
9. Reattach the screen and grille assembly.
10. Solder the leads of the new cartridge to the XLR connector:
the BLUE wire goes to pin 2, and the RED wire goes to pin 3
(see Figure 2).
11. Insert the XLR connector in the bottom of the handle, again
making sure that the wires are not pinched between the con-
nector and the case.
12. Using a small flathead screwdriver, turn the XLR setscrew
clockwise to secure the connector to the case.
Model R174 User Guide
GREEN
YELLOW
FIGURE 2
XLR CONNECTOR
BLUE
1 2
3
RED
Printed in U.S.A.