Vertex Standard MH-50 Service Manual

VERTEX STANDARD CO., LTD.

4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan

SPEAKER MICROPHONE

MH-50

Service Manual

©2002 VERTEX STANDARD CO., LTD. Printed in Japan.

VERTEX STANDARD

US Headquarters

10900 Walker Street, Cypress, CA 90630, U.S.A.

International Division

8350 N.W. 52nd Terrace, Suite 201, Miami, FL 33166, U.S.A.

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

The MH-50 is a Speaker Microphone designed especially for Vertex Standard transceivers*.

* VX-600 / -800 / -900: MH-50

, VX-1210: MH-50

A7A

B7A

Q7000315

PUSH SWITCH ASSY

(W/ LOCK)

RA0183500

PTT KNOB

RA018360A

RUBBER KNOB (MONI)

RA0182500

CAP (EAR)

TOGGLE SWITCH ASSY

M3290029 (MH-50
M3290033 (MH-50
MIC ELEMENT

M4090137
SPEAKER

Q7000314

(Option)

B7A

)

A7A

)

Pin 8 (3.5V:MH-50

(5.0V:MH-50

Pin 6 (ACC:MH-50

(PT T:MH-50

Pin 5 (Select)

Pin 3 (GND)
Pin 2 (Speaker --)
Pin 1 (Speaker +)

A7A

B7A

A7A

B7A

Pin 4 (MIC)

)

)

)

)

Connector Pinout Diagram

RA0263100 (x2 pcs)
SPECIAL SCREW

Non-designated parts are available only as part of a designated assembly.

Specifications

Microphone Impedance: 2.2k-ohm at 1 kHz
Speaker Impedance: 16-ohm
Speaker Input: max. 0.6W
Weight (approx.): 220 g

CS1667001
CURL CORD ASSY

E A A 7 5 X 9 0 1

Circuit Diagram

MH-50A7A

MH-50B7A