! ! ! Exhibit'6:'User’s'Manual' External)Radio)Frequency) Power)Amplifier)OM2000+) ) Model)2000+) ! Array%Solutions% 2611%North%Beltline%Rd%% Suite%109% Sunnyvale,%Texas%75182% USA% Tel:%214%954%7140% fax:%214%954%7142% % E-mail: info@arraysolutions.
! ! ! TABLE%OF%CONTENTS% ! 1. GENERAL!INFORMATION! .....................................................................! 4! 2.1.! Introduction! ! ………………………………………………………………….! 4! 2.2.! Specification! ! ………………………………………………………………….! 4! !!!!2.2.1.!!!!!!Parameters! ! ………………………………………………………………….! 4! !!!!2.2.2.!!!!!!Protection!Circuits! ………………………………………………………………….! 4! !!!!2.2.3.!!!!!!Indicators! ! ………………………………………………………………….! 5! !!!!2.2.4.!!!!!!Features! ! ………………………………………………………………….! 5! 2.
! ! ! 6.2. ! Fuse!Replacement! ………………………………………………………………….! 31! 6.3. ! Tube!Replacement! ………………………………………………………………….! 31! 6.4. ! Cleaning! ! ………………………………………………………………….! 31! ! ………………………………………………………………….! 32! ! 7. APPENDIX! ! ! 7.1. ! Primary!AC!selection! ………………………………………………………………….! 32! 7.2. ! Removing!the!HV!Transformer!!!…………………………………………………….! 33! 7.3.
! ! ! 1. GENERAL%INFORMATION% ) 1.1. Introduction' ) he!OM!Power!model!OM2000+!is!designed!for!!all!short!wave!amateur!bands!from!1.8!to!29.7!MHz! (including! WARC! bands)! ! plus! 50! MHZ! and! all! modes.! ! It! is! equipped! with! a! ceramic! tetrode!!!!!!!!!!! FUa728F.) T! ! ! 1.2. ''Specification' 1.2.1.
! ! • • • • • • • ! Grid!current!too!high! Grid!voltage!error! Heating!voltage!error! Mistuning!of!PA! Temperature!to!high! Soft!start!for!fuses!protection! “switchaon!blocking!“!at!opened!amplifier! ! ! 1.2.3.
! 2.
! ! ! CAUTION) The)amplifier)must)be)installed)in)such)a)way)that)free)flow)of)hot)air)from)the)tube)is)allowed.)The) amplifier)must)not)be)installed)in)a)constrained)surrounding)(i.e.)tight)shelves)etc.).)During)long)time) operation)ventilation)grid)can)reach)high)temperature.)Do)not)touch)it!) ) CAUTION) The)amplifier)must)be)properly)grounded)during)operation.! ) CAUTION) During)operation)the)amplifier)must)be)installed)in)such)a)way)that)the)rear)side)remains)accessible.
! ! ! The!output!of!the!amplifier!is!a!PiaL!circuit.!The!ceramic!capacitor!for!TUNE!and!LOAD!are!divided.!This! enables!the!amplifier!to!be!tuned!exactly!and!makes!it!possible!to!easily!return!to!the!previously!set! positions!after!band!changes.! Top)view)on)the)opened)OM2000+) Tetrode!FU728F!!!!!!Antenna!Switch! Blower! !!!!!!!!!Power!Supply!Board!!!! SwitchaON!Board) ) Output!PiaL!Circuit! !!!!Tuning!Capacitor!!!!!!!!!!!!!!!Subpanel! !!!!!!!!!!!!!!!!HV!transformer! ! 3.2.
! ! ! ! ! ! 3!kVA!toroidal!transformer!is!visible!on!the!left! side.! SwitchaON! board! is! in! the! front,! Power! supply!board!behind!it.! ! ! ! CAUTION) Primary!section!of!the!transformer!is!switchable!for!220!a!240!VAC.!!Factory!setting!is!230VAC.!If!the!AC! voltage!in!your!network!is!220!or!240!Volts,!you!need!to!set!the!correct!value!before!first!starting!of! the!PA.!See!part!7.1.!for!more!information.! ! 3.3.
! 4.1.' ! ! Grounding' CAUTION) The)amplifier)has)to)be)grounded)properly!)Connect)the)screw)on)the)rear)panel)of)the)amplifier)to) your)local)grounding)system)with)a)copper)cable;)use)a)cross]section)of)4)mm2)at)least.!! ! Connect!your!transceiver!to!the!same!grounding!system!of!your!shack!carefully!!Use!minimum!length! cables! and! make! certain! that! the! connections! are! both! physically! and! electrically! sound.
! ! ! CAUTION) If)you)are)using)an)older)transceiver)or)transmitters)without)time)delay,)we)recommend)to)connect) the)PA)in)such)a)way)that)the)transmit/receive)switch)(foot)switch)for)example))is)connected)with) the)KEY)IN)socket)of)the)amplifier.)The)KEY)OUT)socket)is)to)be)connected)with)the)PTT)socket)at)the) transceiver.) The!amplifier!is!equipped!with!safety!devices,!which!ensure!that!the!output!relay!is!not!switched!under! power!mistakenly!(hot!switching).! KEY)IN) ) KEY)OUT! ! 4.4.
! 5. ! ! OPERATION% ! WARNING!) Before)switching)PA)on,)make)sure)that)amplifier)is)grounded,)antenna)or)dummy)load)is)connected,) and)line)cord)is)putted)to)the)outlet.)Be)sure)you)selected)AC)input)by)7.1.) ! CAUTION) Before)switching)PA)on,)check)all)connections)between)PA)and)TCVR.) ! CAUTION) Do) not) turn) PA) on) for) at) least) 2) hours) after) unpacking) it) and) locating) in) its) operating) location.
! ! ! BAND))))))))]) ))Band!selector!switch) TUNE)))))))))])) ))Anode!capacitor!for!tuning!!! !! ! !(higher!frequencies!to!"0";!!lower!frequencies!to!„100“).! ! LOAD)))))))))))))]!!!!!!Output!capacitor!tunes!antenna!load!resistance!to!the!amplifier.!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!Capacity!is!low!at!„100“!and!high!at!"0"!on!the!scale.! ! WATMETER)]))))))Analog!double!system!meter!for!forward!and!reflected!power!measuring) ! ) )) ))))ON)/)OFF))))]!!!Long!press!(abt.!1!sec.
! ! ! ON)AIR))))])!!Transmitting!mode!LED!! STBY!!!!!!!!a!!!Standby!mode!LED! ! FAULT)!!!!a!!!Failure!!LED!!!!!!!! ! ON!!!!!!!!!!!a!!!PA!is!„ON“!LED! ! S1)))))))))))))]))OPER)/)STBY)!!a!!!Press!to!switch!between!Standby!and!Operation!mode! !!!!!!!!!!!!!!!!!!!!!ESC)!!!!!!!!!!!!!!!!!!!a!!!Return!to!the!previous!level! ! S2)))))))))))))]))MENU!!!!!!!!!!!!!!!a!!!Enter!the!Menu! !!!!!!!!!!!!!!!!!!!!DOWN!!!!!!!!!!!!!!!a!!!Scroll!down! !!!!!!!!!!!!!!!!!!!!!!!!! S3)))))))))))))]))DSP!!!!!!!!!!!!!!!!!!!!a!!!Chang
! ! ! If!you!change!DSP!during!warming!time,!you!lost!count!down!information.!Press!BACK)(S1))to!restore) starting!message.!! ! ! ! ! ! When!warming!time!expires,!PA!switches!itself! automatically!to!the!STBY!mode.! ! You!have!two)possibilities!now!a!switch!PA!to! OPER!mode!and!start!operation,!OR!to!go!thru! MENU! and! submenus! to! set! display! parameters,!some!hardware!parameters!or!to! enter!the!service!menu.!! ! ! ! ! In!the!STBY!mode!Antenna!output!can!be!changed!(ANT1,)ANT2,)ANT3)!by!pressing!S4.
! ! ! ! ! ! After! pressing! MENU! (S2)! S1–S4! buttons! changed! their! functions.! To! edit! display! parameters,!press!DISP!button.! ! ! ! ! ! Press!DIS1!to!edit!first!display.! ! ! ! ! ! ! ! ! Now!you!can!define!parameters!for!first!three! rows.!!Start!with!first!line,!press!1Row)button.) ! ! ! ! ! ! Go!UP!or!DOWN!to!select!desired!parameter.! Press!ENT!to!confirm!selection.
! ! ! ! ! S2!and!S3!now!changed!their!functions.!! To!edit!left!side!of!the!second!line,!press!LEFT' button.! ! ! ! Go!UP!or!DOWN!to!select!desired!parameter.! Press!ENT!to!confirm!selection.! ! ! ! ! If!you!finish!left!side!settings,!press!ESC!to!go! back!to!the!side!selection.! To! start! edit! right! side,! press! RIGHT) button….etc.! ! Second!and!!third!line!programmable!parameters!are:! ! • • • • • • • • • • • • • • • 5.2.2.
! ! ! Electronic)Bias)Settings!(EBS)!is!one!of!significant!feature!of!the!power!amplifier.!It!allows!to!set!low! plate!current!after!pressing!the!PTT!regardless!of!whether!you!have!CW!or!SSB!mode,!!until!RF!signal!is! no! present! at! the! input.! ! At! the! moment! when! RF! signal! comes! to! the! input! of! PA,! bias! will! automatically!change!to!its!working!value.! EBS)level!means!level!of!the!Input!power,!where!EBS!starts!working.!Default!EBS!value!is!0.2!W.!We! recommend!using!EBS!ON.
! ! ! ! ! If! you! wish! to) restore) factory! default! parameters,!use!UP!or!DOWN!button!to!select! Restore!default!parameters.!Then!press!ENT.! ! ! ! ! Press!YES!for!1!second!to!confirm!restoring.! ! ! ! ! Use! UP! or! DOWN! button! to! select! LCD! contrast.!Press!ENT.! ! ! ! ! Use!UP!or!DOWN!button!to!set!contrast!value.! Press!ENT!to!confirm!settings.! ! ! ! 5.2.3. Service'menu' ' In! the! Service! menu! it! is! possible! to! verify! software) version.
! ! ! ! ! Use! Service! menu! after! replacing! the! tube.! This!is!step!No.!1.! To!enter!Service!menu,!go!to!the!MENU!first,! then!press!SERV!button.! ! ! ! Use! UP! or! DOWN! button! to! check! software! version.!! ! ! ! ! Use! UP! or! DOWN! button! to! select! Time! ON! parameter.! Press! ENT! to! see! total! operating! hours!of!the!PA.! ! ! ! ! ! Press!ESC!to!go!back!to!the!Service!menu.! ! ! ! ! Use! UP! or! DOWN! button! to! select! Faults.
! ! ! ! ! Use! UP! or! DOWN! button! to! select! Warnings.! Press! ENT! to! see! warning! numbers! or! letters! (see!the!table!in!chapter!6).! ! ! ! Press!ESC!to!go!back!to!the!Service!menu.! ! ! ! ! Use!this!procedure!after!replacing!the!tube.! This!is!step!No.!2.!Scroll!UP!or!DOWN!to!select! EBS1!settings.!Press!ENT!to!start!automatic! adjustment!of!EBS1!(20!mA).
! ! ! ! ! ! ! Use!UP!or!DOWN!to!select!Calibration!Ip!&!Is.!! Press!ENT!to!do!it.! ! ! ! ! Ip!and!Is!calibration!runs!in!the!background.!! Result!only!is!visible!on!the!display.!! Press!ESC!to!go!one!level!back.! ! ! 5.3. ' Operation'mode' CAUTION) In STBY the amplifier is in bypass-mode and your transceiver is directly connected to the antenna. Maximum allowed power in bypass mode is 100 Watts! Passing RF power is measured with analog wattmeter only.
! ! ! ! Changing! of! DSP! allows! user! to! watch! couple! of! basic! parameters! of! the! PA! in! operation! mode! without! input! RF! signal.! Notice:! These! are! three! default! display! settings! (software! version!6.1.)! ! ! ! ! Check all connections again. Set BAND selector, TUNE and LOAD capacitors according to TCVR parameters and delivered tuning table (see next part for more details). Apply low input power and press PTT. Check Analog wattmeter first.
! ! 5.4. ! Tuning'of'the'Power'Amplifier' ! The OM2000+ power amplifier is operated in class AB. Thus it’s possible to obtain a maximum output power at excellent linearity. For this purpose the amplifier has to be tuned carefully. ! CAUTION The)operation)of)a)mistuned)PA)will)cause)malfunctions,)the)increase)of)grid)current)and)problems) with)TVI/BCI.)) ! CAUTION If the input power is higher than 10W and the power amplifier is NOT correctly tuned, the safety devices will switch it to STBY.
! ! ! Press!OPER!to!enter!operation!mode.!Apply!low)input)power!and!press!PTT.!Be!sure!you!selected!right! BAND,!TUNE!and!LOAD!knob!positions.!!If!you!made!some!mistake,!fault!message!appears:! ! ! ! Safety! circuit! stopped! transmitting,! fault! LED! is!ON!(Fault!code!4!is!saving!to!the!memory).!! Release! PTT,! set! proper! positions! of! BAND,! TUNE! and! LOAD! according! to! the! table! and! press)PTT!again.! ! ! Another!mistake!can!occur,!if!you!have!antenna!connected!to!the!wrong!output.
! ! ! ! Two! of! important! information! is! visible! –! screen) current) increased,! but! still! is! within! the! allowed! limits.! ! Turn! LOAD! knob! slightly! in! arrows! direction! to) get) TUNE) indicator) between)arrows.) ! ! ! Display!indicates!correct)tuning!of!the!Power! amplifier.! ! ! ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))Remember! Always!use!TUNE!knob!to!get!maximum!output!power.
! ! ! To!start)the)second)method!of!fine!tuning,!press!S2)(TUNE)!button!in!OPER!mode.! ! PA! is! in! the! operation! mode.! After! TUNE! button! (S2)! was! pressed,! it! changes! its! function.!!Now!STOP!is!blinking.! Do!not!press!STOP!button!yet!! ! Apply!input!power!according!tune!table!(or!lower)!for!selected!band!and!press!PTT.!Use!TUNE)knob!to! get!maximum!output!power.!Use!LOAD)knob!to!get!Is!!graph!indicator!within!the!boundaries.! ! Display!shows!properly!tuned!PA.
! 6. ! ! MAINTENANCE% ' 6.1.'''' ''Indication'of'Fault'Conditions' If!a!fault!condition!appears!during!the!operation!of!the!amplifier,!the!safety!circuits!of!OM2000+!will! react.! There! are! several! warning! or! fault! messages! possible! to! appear! on! the! display,! when! some! of! the! protection! will! be! activated.
! ! ! them! one! position! back.! It! means! that! every! time! last! 30! messages! are! visible! on! the! display.! Next! table!shows!limited!values!for!the!safety!circuits!activation.! ! Fault!code! 1! Parameter! Power!Output!is!too!high! 2! 3! 4! 5! 6! 7! 8! 9! A! Reflected!power!is!too!high! Power!Input!is!too!high! Low!output!power!(tune)! Plate!current!!is!too!high! Grid!current!is!too!high! Screen!current!is!too!high! N/A! Heating!voltage!error! HARD!FAULT!(from!3.
! ! ! ! ) An!example!shows!situation!when!Input! power!is!too!high.!By!pressing!PTT!safety! circuit!will!react!quickly,!error!message! appears!and!FAULT!LED!starts!blinking.!In!this! case!screen!current!exceeds!limited!value! (60mA).!! After! abt.! 1! sec.! PA! returns! to! TX! mode.! Reduce!Input!power!to!avoid!fault!repeating.! ! ! ! This!is!the!situation,!when!problem!with!high! Input!power!persists.!Safety!circuits!reacted!3! times,! and! then! switched! PA! to! STBY! mode.
! ! ! In!the!case!of!some!hardware!failure!or!if!your!power!amplifier!is!not!working!properly,!please!contact! the!manufacturer!or!your!dealer.! ! WARNING!) Never)try)to)change)or)move)any)part)inside)the)amplifier)except)of)tube)or)fuses.))Substitution)of) parts)may)void)intrinsic)safety!)) ! Manufacturer’s)contacts:)))))))))))))OM)POWER,))s.r.o.
! ! ! ' 7. ! APPENDIX% ! 7.1.' Primary'AC'voltage'selection' Primary!section!of!the!HV!transformer!is!switchable!for!three!values!of!AC!voltage!(220,!230,!!240V).! Factory!settings!is!230VAC.!Before!first!starting!of!the!PA!we!recommend!to!check!the!correct!value! according!to!the!AC!voltage!in!your!network.!Change!the!settings,!if!necessary.
! ! ! Remove!the!upper!lid!first.!On!the!right!side!of!the!PA,!next!to!the!HV!transformer!there!are!two!PCBs! mounted.!On!the!left!upper!side!of!the!front!(SwitchaON)!board!connector!J6!is!located.! ! ! Use! flat! screwdriver! or! finger! and! press! carefully! ! the! white! ! stick! to! release! contact! and! move! upper! end! of! the! white! jumper! to! the!proper!position,!if!necessary.! Jumper must be connected between bottom contact and one of remaining contacts.
! ! ! ! ! ! Weight of the PA was distributed (transformer has 12 kg, rest of the PA has cca 12 kg, too). ! When refitting the transformer, watch to the correct location of individual sections and wires. ! ! NOTE Manufacturer reserves the right to make future changes in the way of connecting the transformer to the board. Allways mark the position of the terminals before disconnecting the transformer.
! ON AC 1 INPUT K2 2 2 1 K1 Ext.
