Bulletin Ref #: 03_T_12V_3
Page 1 of 1
Technical Bulletin
Date:
12/9/03
To:
KVH TracVision A5 Dealers
From:
Technical Service Group
Bulletin Ref #:
03_T_12V_3
Subject: Wiring the TracVision
®
A5 Receiver to Vehicle Power
For the TracVision A5 system to function properly, it is critical that the receiver get the
necessary power from the vehicle. Please read this important bulletin carefully to ensure a
good connection to vehicle power.
Power Wiring Requirements
When connecting the receiver to vehicle power, be sure to follow the guidelines below.
•
Connect the receiver’s power cable to the vehicle’s switched (accessory) power via
the fuse box. Do not connect the receiver directly to the vehicle’s battery.
•
With the vehicle running and the receiver turned on, power at the TracVision A5
receiver must measure at least 11 VDC (10 VDC if the vehicle is not running). To
ensure the receiver gets the necessary supply, do not wire any other device to the
same power circuit that is supplying the TracVision A5. With the receiver wired to a
dedicated fuse, you eliminate the drain caused by additional loads.
Bus and Limo Installations
Due to the unstable power found on limos and buses, KVH recommends that an AC/DC
converter be used to connect the TracVision A5 receiver to the vehicle’s AC power supply.
An AC/DC converter is available from KVH (order KVH part number 72-0150,
price: $295 MSRP, 25% dealer discount applies). This device ensures that a stable DC
supply is always present at the receiver.
Symptoms of a Power Problem
A TracVision A5 power problem can manifest itself in several ways. The following are the
most common symptoms of a power problem.
•
When turned on, the receiver beeps three times quickly
•
Program guide does not load
•
Antenna tracks intermittently or not at all
KVH Industries, Inc.
50 Enterprise Center
Middletown, RI 02842
U.S.A.
Tel: 401.847.3327
Fax: 401.849.0045
www.kvh.com
