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CIRCUIT MODIFICATION To modify the microphone circuit for normally shorted operation, proceed as follows: 1. Remove the three No. 6 Phillips screws from the back of the microphone case.
d B
Dimensions See Figure 3
14 mm (9/16 IN.) 8 mm (5/16 IN.) 45 mm (1-25/32 IN.)
2. Separate the front and back sections of the case, and remove the press-to-talk switch button. 3. Unsolder or clip the GREEN cable lead from the press-to-talk switch solder lug. 4. Solder the GREEN cable lead to the GREEN cartridge lead on the press-to-talk switch solder lug. 5. Replace the press-to-talk switch button in the front section of the case, then join the case halves together and install the No. 6 Phillips screws removed in Step 1 above. SPECIFICATIONS Type Dynamic, noise-canceling Frequency Response 100 to 5,000 Hz (see Figure 2)
+10 0
94 mm (3-11/16 IN.)
19 mm (3/4 IN.)
41 mm (1-19/32 IN.)
67 mm (2-5/8 IN.)
18 mm (23/32 IN.)
4.8 mm (3/16 IN.)
MICROPHONE MOUNTING HOLES, CLEARANCE FOR No. 8 SCREWS
9.1 mm (23/64 IN.)
�10 20 50 100 2 3 4 5 6 7 89 1000 2 3 4 5 6 789 10000 20000
46 mm (1-13/16 IN.) 36.5 mm (1-7/16 IN.)
Hz
10.3 mm (13/32 IN.)
TYPICAL FREQUENCY RESPONSE FIGURE 2 Impedance (at 1000 Hz) Rated at 150 Ω (175 Ω actual) for connection to microphone inputs rated at 19 to 300 Ω. Output Level (at 1,000 Hz, 5/16 in.) Open Circuit Voltage-66.0 dBV/Pa (0.5 mV) Hum Sensitivity Equivalent to 32 dB SPL in 1 millioersted field Operating Temperature Range -40° to 74° C (-40° to 165° F) Switch Type Double-pole, single-throw, leaf-type, push-to-talk Cable Non-detachable. 1.8 m (6 ft), neoprene-jacketed coil cord, four-conductor (two conductors shielded). Case Two-tone gray, high-impact ARMO-DUR®
0 dB = 1 volt per 1 Pascal/94 dB SPL
9.5 mm (3/8 IN.)
4.7 mm (3/16 IN.)
34.5 mm (1-23/64 IN.)
MOUNTING BRACKET
OVERALL DIMENSIONS FIGURE 3 Net Weight 330 grams (11.6 oz) CERTIFICATION Eligible to bear CE Marking. Conforms to European EMC Directive 89/336/EEC. Meets applicable tests and performance criteria in European Standard EN55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environments. SUPPLIED ACCESSORY Mounting Bracket (3 per kit) .......................................... RK6MB REPLACEMENT PARTS Cartridge ........................................................................... R98B Cable .................................................................................. C117 Switch............................................................................ RK338S SERVICE INFORMATION For additional service or parts information, please contact Shure's Service department at 1-800-516-2525. Outside the United States, please contact your authorized Shure Service Center.
2
SHURE Incorporated http://www.shure.com United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.S. Fax: 847-600-1212 Intl Fax: 847-600-6446 Europe, Middle East, Africa: Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacific: Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055
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