1. INTRODUCTION
continued …
3
1.3.3 SUPPLY POWER REQUIREMENTS
The AVM 20 can operate from any single phase AC power source that supplies between 105V and 130V at a
frequency of 60 Hz. The power transformer primary cannot be changed from 120V to 240V operation.
The AVM 20 uses a polarized power cord with one blade wider than the other so that it only fits into the outlet
one way. If the plug cannot be fully inserted with no blade exposed, reverse the plug and try again. If it still
does not fit, you have an obsolete outlet – contact an electrician to replace it.
To prevent risk of shock or fire, do not overload wall outlets, extension cords, or convenience receptacles.
The use of an adequate and approved surge protector is highly recommended.
DO NOT USE A POWER LINE CONDITIONER:
• Certain design characteristics of many Power Line Conditioners make them incompatible with
the AVM 20 and may cause the AVM 20's AC line fuses to blow.
• None is required because the AVM 20's power supply has power line filtering and voltage
regulation built in.
1.3.4 IN-USE NOTICES
• Use only the power supply cord with double insulation as supplied.
• Disconnect the power cord from the AVM 20 before connecting or disconnecting any components.
• Fuses are not a user serviceable item (see section 1.3.6 and specification section).
• Do not remove the top cover.
• Do not alter or modify the AVM 20 in any way.
1.3.5 CLEANING
Unplug the AVM 20 from the wall outlet before cleaning. A regular dusting with a soft, non-abrasive cloth will
generally keep the finish of the faceplate and chassis looking new. Do not allow any liquid to come in contact
with the AVM 20; it may run onto the internal electronic circuitry and cause damage that is not covered under
warranty.
1.3.6 SERVICING
Do not attempt to open or perform any repairs to the AVM 20. There are no adjustments inside the AVM 20
that can be made by the user, nor are there any user serviceable parts inside. Refer servicing to qualified
service personnel only.
1.3.7 NON-USE PERIODS
To prevent damage from power line surges and lightning strikes, unplug the AVM 20 from the power outlet,
outside antenna, and cable system when left unused for an extended period of time.
1.4
PACKING MATERIALS
Please retain the shipping box and all packing material. They are custom designed to prevent shipping
damage from occurring. Do not ship or transport the AVM 20 in anything other than the original box and
packing material.