Shure ES-230, ES-210 User Manual

Model R98B Replacement Cartridge for

K

Model 577 Series Microphones

CASE FRONT

RETAINING
RING

TAB

CHASSIS
MODULE

CARTRIDGE

TAB

CABLE

EXPLODED VIEW

FIGURE 1

DISASSEMBLY

Remove the three No. 6 Phillips head screws securing
the case assembly. Separate the case halves, remove the
switch button, and remove the case front from the chassis
module.

MODEL R98 CARTRIDGE

SWITCH
ASSEMBLY

O–RING

TWIN NUT

SWITCH
BOTTOM

TOP
CABLE
CLAMP

BOTTOM
CABLE
CLAMP

CASE BAC

6. Bend the cartridge-retaining tabs outward (away from
cartridge).

7. Solder the leads to the cartridge terminals. See Figure 2
for proper lead connections.

8. Insert chassis module in case front and switch button in
case back.

9. Fasten case halves with previously removed screws.

The R98B is a replacement microphone cartridge for the
577B microphone. To replace the present cartridge with
the R98:

1. Disassemble the case as described above.

2. Using a low-wattage (50 W or less) soldering iron,

unsolder the leads connected to the present cartridge.

3. Bend the two cartridge-retaining tabs inward (toward

cartridge).

4. Slide the cartridge out of the chassis module, remove

the retaining ring from around the screen, and remove
the O-ring from the rear of the cartridge.

5. Place the retaining ring and the O-ring on the replace-

ment cartridge and slide the replacement cartridge into
the chassis module.

MODEL 577B INTERNAL WIRING DIAGRAM

FIGURE 2

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©2005, Shure Incorporated

27C1593 (Rev. 5)

Printed in U.S.A.