Acom ACOM1000 Manual Download Page 5 | Manualshive

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Acom ACOM1000 Manual Download Page 5

5

PRECAUTIONS:

The EXPLICIT DEFINITIONS described below apply to this operating manual:

W A R N I N G

notes call attention to a procedure which, if not correctly performed, could result in

personal injury, fire hazard or electric shock.

C A U T I O N

notes call attention to a procedure which, if not correctly performed, could result in

equipment damage, not only in the amplifier.

N O T E

notes call attention to a procedure which, if not correctly performed, could result in

inconvenience.

W A R N I N G HIGH VOLTAGE!

The amplifier works with high voltages up to 3000V, which are LETHAL!

Also, for your safety, pull the amplifier power plug out of the mains wall

outlet and WAIT AT LEAST 30 minutes EACH TIME BEFORE you remove

the cover of the amplifier. Do not touch any part inside while the amplifier

is open because some residual voltages may still be present.

W A R N I N G HIGH VOLTAGE!

NEVER ALLOW ANYONE, ESPECIALLY CHILDREN,

to push anything into holes in the case - this will cause electric shock. NEVER

TOUCH AN ANTENNA during transmission - this may result in an electric

shock or burn. NEVER EXPOSE the amplifier to rain, snow or any liquids.

AVOID placing the amplifier in excessively dusty environments or in direct

sunlight. DO NOT OBSTRUCT AIR INTAKE (rear panel) and EXHAUST

(top cover) areas of the amplifier. Keep a minimum distance of 10cm (4

inches) to the intake and 50cm (20 inches) to the exhaust.

W A R N I N G

Do not undertake on your own repairs or changes in hardware or software

of the amplifier. Otherwise you may endanger your or others health and

life or damage the amplifier and the equipment connected with it, not

covered by warranty. The manufacturer is not liable for anothers actions

and responsibility shall be assumed by the doer.

C A U T I O N

To avoid damage (not covered under warranty) read the Installation - Section 2 of

this operating manual carefully. If you have any doubts about the installation, operation

or safeties of the amplifier please consult your dealer.

All manuals and user guides at all-guides.com

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Summary of Contents for ACOM1000

Page 1: ...lection 6 2 4 Connections 7 2 5 Installation of External Fan 9 3 POWER ON CONTROLS AND INDICATORS 9 4 OPERATION 11 4 1 Turning ON and OFF 11 4 2 Changing Operate and Standby Modes 12 4 3 Tuning 12 4 4 ON LINE Information Screens and Control Functions 15 4 5 Auto Protection System 15 5 OFF LINE OPERATION 16 5 1 Contrast and Backlighting control 16 5 2 Auto Operate enabling and disabling 16 5 3 Read...

Page 2: ...ses Replacement 17 6 3 Tube Replacement 17 6 4 The ACOM1000 Simplified Schematic Diagram 17 6 5 Troubleshooting 18 7 SPECIFICATIONS 20 7 1 Parameters 20 7 2 Functions 21 7 3 Storage and Shipment 21 All manuals and user guides at all guides com ...

Page 3: ...tains the amplifier in OPERATE mode for you thus saving manual operations and time l No heavy outboard antenna tuners required for antenna VSWR up to 3 1 and higher on some bands Your amplifier will perform the functions of an antenna tuner thus enabling you to change antennas faster and use them over a wider frequency range saving tuning time l An amplifier that is both user friendly and that loo...

Page 4: ...ible break down l High voltage power supply inrush current protection which eliminates the danger of affecting sensitive devices connected to the same mains circuit important when used portable The amplifier can be configured for 5 nominal line voltages 200 210 220 230 and 240VAC 50 or 60Hz 100 110 and 120VAC on request l Continuous measuring and or selectable monitoring of 12 most important param...

Page 5: ...CHILDREN to push anything into holes in the case this will cause electric shock NEVER TOUCH AN ANTENNA during transmission this may result in an electric shock or burn NEVER EXPOSE the amplifier to rain snow or any liquids AVOID placing the amplifier in excessively dusty environments or in direct sunlight DO NOT OBSTRUCT AIR INTAKE rear panel and EXHAUST top cover areas of the amplifier Keep a min...

Page 6: ... your dealer AMP s n Tube s n Voltage Selector VAC Table 2 1 ACOM 1000 Individual Data 2 3 Amplifier Location Selection C A U T I O N The weight of the unit is about 22kg which should preferably be handled by two persons Position the amplifier near the place where it will be used You ll need an easy access to the command knobs and indicator s area as well as to the rear panel cabling No magnetic f...

Page 7: ...ug from the transceiver output to the amplifier rear panel RF INPUT socket C A U T I O N If this is the first time you will use a power amplifier in your station pay attention to the coaxial cable type from the amplifier s output It must handle the increased power safely particularly on the 10 and 6 meters bands We recommend that you use RG213 or better Check the same for the antenna selector and ...

Page 8: ... to you Customers should check with a qualified electrician if the amplifier is to be used outside the country in which it was purchased Due to the different standards in different countries the mains plug is supplied and mounted by the dealer He connects to the mains cord end a standard mains supply plug which meets the Safety Class I units standard in your country The ground lead of the amplifie...

Page 9: ...4 hours A similar effect can occur after a rapid warming of the operating room for instance after switching on a powerful heater in a cold shack C A U T I O N To avoid damage not covered under warranty carefully check that the voltage for which the amplifier is set corresponds to your mains nominal voltage see S 2 2 and table 2 1 After following all instructions in S 2 you can turn ON the main pow...

Page 10: ...Input Exh Air Temp Tuning TRI 2sec LCD adj S 5 S 3 S 4 S 4 1 S 4 4 S 4 3 S 5 1 S 5 1 S 5 2 S 5 2 S 5 3 Fig 3 2 Information Screens and Control Functions Structure The OPER button alternatively changes operate and standby modes S 4 2 while ON LINE Please note that Auto Operate might be enabled The same button activates signature list while OFF LINE The PREV and NEXT buttons change information scree...

Page 11: ...EV or NEXT buttons during this period will result in changing the screen to one of the 14 available information screens described in S 4 4 below This action will not influence the warming up process so you may pass through all information screens for instance to monitor the High Voltage value or the Exhaust Air temperature You can also return to the old one to see how many seconds are still needed...

Page 12: ...TPUT POWER in the load is equal to the difference between the FORWARD and REFLECTED readings For instance at a reading of FORWARD 1200W and of REFLECTED 200W the real OUTPUT POWER is 1000W into a 2 6 1 VSWR load At very high VSWR no antenna or badly mismatched antenna the FORWARD and REFLECTED readings will be almost equal while the real OUTPUT POWER the difference between them will be practically...

Page 13: ...1 4 1 5 4 5 5 4 2 6 2 2 8 1 8 1 3 6 1 6 2 5 4 5 5 4 1 2 1 2 7 1 4 4 3 3 5 3 5 2 9 4 2 1 8 9 7 9 4 7 4 7 9 2 8 2 0 2 6 4 2 3 6 3 4 5 0 5 5 1 0 4 2 1 6 1 Table 4 1 Approximate tuning preset b Selecting the plate load True Resistance Indicator TRI tuning aid You may select TRI scale in three different ways By pressing simultaneously for a moment the PREV NEXT buttons This will insert a 6dB attenuator...

Page 14: ... a m r e k r a m t f e l r a f a s i r e k r a m b o n k D A O L n r u t l i t n u t h g i r o t r e t n i o p e d i s n i r e k r a m t h g i r r a f a s i r e k r a m b o n k D A O L n r u t l i t n u t f e l o t r e t n i o p e d i s n i r e k r a m e d i s n i r e k r a m b o n k D A O L n r u t o t t f e l y l t h g i l s t i r e t n e c d e n u t s i D A O L o t b o n k E N U T n r u t d r a...

Page 15: ...d the amplifier will evaluate the risk and may use three different degrees of protection depending on the nature of the problem Each event is accompanied by a text telling you the reason The backlight of the LCD is flashed meanwhile in order to attract the operator s attention a The first degree of protection is issuing a warning message only without any influence on the transmitting process This ...

Page 16: ...In order to enable or disable the auto operate at all after a contrast and backlight selection see the previous S 5 1 continue with pressing shortly the PREV NEXT buttons The Auto Operate screen will appear on the bottom line Use the PREV button to select OFF or NEXT to select ON Press shortly the PREV NEXT buttons again to accept and return N O T E If LCD back lighting or contrast are too low thu...

Page 17: ...e MAINS PCB inside the amplifier there are two more small glass fuses 5x20mm 100mA and 2A slow blow type which are not replaced by the user Should one of these fuses be blown it may be indicative of other failures This is a complex and potentially dangerous operation For this reason we recommend this work be carried out by a trained service technician 6 3 Tube Replacement A single 4CX800A GU74B hi...

Page 18: ...TTMETER are the main sources of information for the control circuit of the amplifier during the antenna impedance matching process The control circuit is based on the 80C552 micro controller from Philips All voltages are delivered from the MAINS LOW VOLTAGE and HIGH VOLTAGE SUPPLY PCBs The control grid screen grid and plate currents plate cooling airflow temperature reflected power etc are permane...

Page 19: ...power exists GRIDRF logic A antenna power exists PANT logic B output relay closed ORC logic C arc fault ARCF logic D control grid current too high G1C logic E 24VDC power supply error PSE logic F low airflow LAIR logic For instance 1ATR4B in the first group would mean that the last auto protection 1A tripped by the antenna relay tests made during Tx Operate mode TR4 and the output relay closed ORC...

Page 20: ...ype connectors Input circuit broadband VSWR less than 1 3 1 1 8 54MHz continuously no tunings no switching Bypass path VSWR less than 1 1 1 1 8 54MHz continuously Output antenna impedance matching capability VSWR up to 3 1 or higher g RF Gain 12 5dB typically frequency response less than 1dB 50 to 60W drive power for rated output h Primary Power 170 264V 200 210 220 230 240V nominal taps 100 110 1...

Page 21: ...or forward peak power and text messages to the operator f Measurement and constantly monitoring of 12 most important parameters of the amplifier via LCD g Menu selectable LCD Backlight and Contrast h Tube a single 4CX800A GU74B high performance ceramic metal tetrode of Svetlana with plate dissipation of 800W grid driven forced air cooling 7 3 Storage and Shipment C A U T I O N Should you need to t...

Page 22: ...y up to 75 35 degs Celsius b Shipping Size and Weight W590mm x D430mm x H305mm 25kg c Shipping environments all types of transportation including aircraft baggage section up to 12000 meters above sea level All manuals and user guides at all guides com ...

Page 23: ...23 notes All manuals and user guides at all guides com ...

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