Vertex Standard VX-2500V manual

		VERTEX STANDARD CO., LTD.
		4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
		VERTEX STANDARD
VHF FM Transceiver		US Headquarters
		International Division
		10900 Walker Street, Cypress, CA 90630, U.S.A.
VX-2500V		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
Service Manual		YAESU UK LTD.
		Winchester, Hampshire, SO23 0LB, U.K.
		Unit 12, Sun Valley Business Park, Winnall Close
		VERTEX STANDARD HK LTD.
© 2003 VERTEX STANDARD CO., LTD.	(EC031N90A)	Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
		Kwun Tong, Kowloon, Hong Kong

Introduction

This manual provides technical information necessary for servicing the VX-2500V Transceiver.

Servicing this equipment requires expertise in handling surface-mount chip components. Attempts by non-qualified

persons to service this equipment may result in permanent damage not covered by the warranty, and may be illegal in

some countries.

Two PCB layout diagrams are provided for each double-sided circuit board in the transceiver. Each side of thr board is

referred to by the type of the majority of components installed on that side (“leaded” or “chip-only”). In most cases one

side has only chip components, and the other has either a mixture of both chip and leaded components (trimmers, coils,

electrolytic capacitors, ICs, etc.), or leaded components only.

While we believe the technical information in this manual to be correct, Vertex Standard assumes no liability for damage

that may occur 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.

Contents

Specifications ....................................................	2	Alignment .....................................................	11
DSUB 9-pin Accessory Connector .................	3	RF Unit Jumper Information .....................	16
Exploded View & Miscellaneous Parts ........	4	Board Unit (Schematics, Layouts & Parts)
Block Diagram ...................................................	5	RF Unit ..........................................................................	17
Interconnection Diagram ................................	7	Panel Unit .....................................................................	31
Circuit Description ...........................................	9