Acom 2000A Operating Manual

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Acom 2000A Operating Manual Manual pdf 14 page image

12W A R N I N GBefore connecting the amplifier to your mains supply, be sure that thesupply is correctly wired, and is adequate for the current drawn by theamplifier. Make certain that the grounding lead is connected properly inthe wall outlet for the amplifier.It is preferable that you use the wall outlet closest to the source. The installation leads shouldbe at least 2.5mm2 (AWG 12 or SWG 15). Check if the respective fuses can handle current upto 20A, as well as if the voltage corresponds to the voltage for which the amplifier is set (S.2-2).If you connect the amplifier to a different mains outlet, be sure that you check it, too.Make sure the main Power Switch on the front panel is in OFF position (so that the red strip onthe switch is hidden) and insert amplifier's mains plug into the wall outlet prepared for it. Theamplifier remains switched off.2-5. Installation of Optional FanThis fan is not necessary in SSB and CW modes, nor in continuous carrier modes (RTTY, SSTVetc.) with carrier down times of maximum 15 minutes and a subsequent pause of 3 minutes. Forhigher duties the fan is recommended. The auxiliary fan (119x119mm) is supplied as an optionwith a set of 8 screws, nuts and washers. It may be mounted by the manufacturer or dealeron request (Fig. 2-2). Contact your dealer or see the TECHNICAL SUPPLEMENT for details.3. POWER ON, RCU CONTROLS, INDICATORS AND MENUSC A U T I O NBefore you turn the amplifier on, at least 2 hours should have expired sinceit was brought in and unpacked in the room where it will be used. Payparticular attention when you move it from a very cold into a very warm place- condensation is likely and this could result in damage to the high voltagecircuits. In such a case, wait at least 4 hours. A similar effect can occur aftera rapid warming of the operating room (for instance after switching on apowerful heater).C A U T I O NTo avoid damage (not covered under warranty) carefully check that the voltagefor which the amplifier is set corresponds to your mains nominal voltage (seeS.2-2 and table 2-1).After following all instructions in S.2, you can turn ON the Main power switch on the frontpanel. The red LED indicator above it must light and a picture will appear on the RCU (Fig.3-1):