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Numéro de référence | VX-537 | ||
Description | UHF Band Service Manual | ||
Fabricant | VERTEX STANDARD | ||
Logo | |||
1 Page
VX-537
UHF Band
Service Manual
©2010 VERTEX STANDARD CO., LTD.
EC052U90D
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARDhttp://www.DataSheet4U.net/
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
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
VERTEX STANDARD (AUSTRALIA) PTY., LTD.
Normanby Business Park, Unit 14/45 Normanby Road
Notting Hill 3168, Victoria, Australia
Introduction
This manual provides technical information necessary for ser-
vicing the VX-537 UHF FM 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 cov-
ered 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 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 inconsis-
tencies in the technical information would be appreciated.
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Contents
Specification ..................................................................................................................................................................... A-1
Exploded Views & Miscellaneous Parts ..................................................................................................................... B-1
Block Diagram .................................................................................................................................................................. C-1
Circuit Description .......................................................................................................................................................... D-1
Alignment ......................................................................................................................................................................... E-1
Board Units (Schematics, Layouts & Parts)
RF Unit ............................................................................................................................................................................ F-1
CNTL Unit ..................................................................................................................................................................... G-1
SW Unit .......................................................................................................................................................................... H-1
Dummy Unit ................................................................................................................................................................... I-1
VR Unit ............................................................................................................................................................................ J-1
Interface Unit ................................................................................................................................................................ K-1
KEY Unit ........................................................................................................................................................................ L-1
Optional Board Units (Schematics, Layouts & Parts)
F2D-8 2-Tone Decode Unit ......................................................................................................................................... M-1
VTP-50 VX-Trunk Unit ................................................................................................................................................ N-1
FVP-25 Encryption / DTMF Pager Unit .................................................................................................................... O-1
F5D-14 5-Tone Unit ...................................................................................................................................................... P-1
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Pages | Pages 30 | ||
Télécharger | [ VX-537 ] |
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