Yaesu_MD-200A8X_serv.pdf

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1、2001 VERTEX STANDARD CO., LTD. Printed in Japan. Technical Supplement DESKTOP DYNAMIC MICROPHONE MD-200A8X Specifications Microphone Element Type:Dynamic Frequency Range:30 - 17000 Hz Sensitivity:62 dB (1 kHz, 0 dB = 1 V/1 pa) Impedance:600 Ohms Dimensions (WHD):4.7” x 11.4” x 4.9” (120 x 290.5 x 12

2、4.5 mm) Weight:Approx. 2.2 lb. (1 kg.) Specifications are subject to change without notice or obligation. Introduction The Desktop Microphone is designed for base station op- eration with the latest generation of Yaesu HF transceivers, includ- ing those with VHF/UHF capability. Designed especially f

3、or ultra- low distortion and the highest fidelity, the includes a new- technology “Variable Side Pressure Control” (VSPC), which allows precise adjustment of the microphones audio response without re- sorting to “active” equalization circuits that can introduce distortion and/or degrade signal-to-no

4、ise ratio. Servicing this equipment requires expertise in handling surface mount chip components. Attempts by unqualified persons to service this equipment may result in permanent damage not covered by war- ranty. While we believe the technical information in this manual is correct, VERTEX STANDARD

5、assumes no liability for damage that may oc- cur as a result of typographical or other errors that may be present. Your cooperation in pointing out any inconsistencies in the technical information would be appreciated. VERTEX STANDARD reserves the right to make changes in this trans- ceiver and the

6、alignment procedures, in the interest of technological improvement, without notification of owners. 1 DYNAMIC MICROPHONE MD-200 E A A 9 8 X 9 0 0 VERTEX STANDARD CO., LTD. 4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A

7、. YAESU EUROPE B.V. P.O. Box 75525, 1118 ZN Schiphol, The Netherlands YAESU UK LTD. Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U.K. VERTEX STANDARD HK LTD. Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong 2 Exploded Views & Mec

8、hanical Parts S8101121 CORD ASSY S8001982 (X5 pcs) TAPPING SCREW M3X14 U41306201 (X4 pcs) TAPPING SCREW M3X6 S8101120 MAIN PCB ASSY S8001981 (X2 pcs) HEX SOCKET HEAD BOLT M6X8 S8001978 STAND ASSY S8001979 LOCK KNOB S8001980 STAND COVER ASSY Non-designated parts are available only as part of a design

9、ated assem- bly. 3 Exploded Views & Mechanical Parts S8001970 MIC HEAD ASSY S8001971 UNIT ASSY (w/o TAPPING SCREW) S8001972 BOTTOM CASE W/CABLE ASSY S8001973 (w/o KNOB SCREW) ARM ASSY S8001977 EXTENSION ADAPTER S8001976 KNOB SCREW S8001974 (X2 pcs) SPECIAL SCREW S8001975 (X2 pcs) RUBBER RING U403082

10、01 (X2 pcs) TAPPING SCREW 3X8 Non-designated parts are available only as part of a designated assem- bly. 4 Circuit Diagram BASE Unit Circuit Diagram from JP2001 5 Parts Layout Side A BASE Unit Parts Layout a a MIC GND MIC GND JP1001 Side B 6 Parts Layout BASE Unit Parts Layout 7 Circuit Diagram LED Unit Circuit Diagram Side B Side A LED Unit Parts Layout from MIC to J1001 8 Parts List REF.DESCRIPTIONVALUEV/WTOL.MFRS DESIG VXSTD P/NLOT.SIDE.