DX Engineering Acom 2000A - User Manual

TECH TIP
Acom 2000A – Memory Battery
Replacement
Reference your ACOM 2000A Owner’s manual for other details prior to this procedure.
Normally the ACOM 2000A battery lasts about ten years. If it is a newer amplifier, check the battery
voltage first.
You will find the battery on the interface board behind the front panel. You can easy remove the
battery and solder the new one.
There is only one precaution when soldering a new battery:
The battery negative lead is directly connected to the chassis/ground. If your soldering iron tip is
grounded too, it will make a short when touching the positive lead. This can be avoided if the
amplifier will be totally disconnected. Remove all cables - the power cord, keying cable from the
transceiver, both coax cables, RS-232, grounding and whatever else is connected there.
Alternatively you can leave the amplifier connected and only unplug the soldering iron from the line
socket while soldering the new battery.
NOTE: The amplifier memory will be erased. You will have to tune the amplifier up on all bands and
antennas after the change.
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Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200
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TechTip – ACOM 2000A-Battery replacement – 4 Sept 2020

Summary

Acom 2000 A Memory Battery Replacement Guide

Accessing the Acom 2000 A Internals

Critical Safety Precautions: High Voltage

Emphasizes lethal voltages, requiring unplugging and 30-minute wait before touching internal components.

Removing Top Cover and Verifying Safety

Details on unscrewing the top cover and checking the high voltage crowbar for chassis grounding.

Front Panel Removal Procedure

Instructions for removing the front panel by unscrewing specific screws and gently pulling it forward.

DX Engineering Acom 2000A Specifications

General

Tuning Method	Automatic
Frequency Range	1.8 - 30 MHz
Power Output	2000 W PEP
Input Power	50-100 W
Input Impedance	50 Ω
Output Impedance	50 ohms
Harmonic Suppression	Better than -50 dB
Intermodulation Distortion	Better than -30 dB
AC Power Requirements	200-240 V AC, 50/60 Hz
Cooling	Forced air
Tube	4CX800A