Nautel V10 User's Installation And Operation Manual

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Nautel V10 User's Installation And Operation Manual Manual pdf 117 page image

V10/V7.5/V5/V3.5 Installation and Operation Manual Page 5-13Section 5 System Level Troubleshooting Issue 3.5• If all connections are secure and allmodules are installed properly, theremay be a problem with an IPA splitterassembly (A21 or A22, as applicable),the control/display PWB (A43) faultdetection circuitry, or the IPA module/PA. For dual IPA systems, if thestandby IPA is operating, the fault is notwith the IPA splitter assemblies or thecontrol/display PWB.Possible Associated Faults:- IPA Q3 or Q4 Match (V10/V7.5)- IPA Match (V5/V3.5)- Q3 or Q4 Latch Off (V10/V7.5)- IPA Latch Off (V5/V3.5)- IPA Fail A or B- IPA Shutdown5.5.2.4 IPA Reflected HighAn IPA Q3 Refld High (V10/V7.5), IPAQ4 Refld High (V10/V7.5) or IPA RefldHigh (V5/V3.5) alarm occurs when theIPA (specifically A3 or A4 for theV10/V7.5) peak reflected power exceedsthe threshold (IPA Reflected Highthreshold is user definable, but is defaultedto 75 W for all modes). Five alarms withinfive minutes cause the transmitterresponse described in 5.5.2. To reset,press Reset in the Status screen.(a) Refer to the Status and Events Logscreens for additional alarms. Refer tothe troubleshooting information onthose alarms. If no other alarms areindicated, check the detection circuitryon the control/display PWB (A43).NOTEIf an RF power module input drive cablehas open or short circuited, the associatedswitching power supply will be inhibiteddue to low RF drive input level. Theassociated Module Fail (A-H for V10; A-C,E-G for V7.5; A-D for V5, A-C for V3.5) andassociated switching power supply modulePS Fail (A-H for V10; A-C, E-G for V7.5;A-D for V5, A-C for V3.5) alarms will be on.• Check cables and connections betweenthe IPA splitter assembly (A21 or A22,as applicable) and the applicable RFpower module’s interconnect PWB (A23- A30 for V10, A23 - A25 and A27 - A29for V7.5, A23 - A26 for V5, A23 - A25for V3.5). These cables/ connectionsinclude V10: W11 (A) - W18 (H); V7.5:W11 (A) - W13 (C) and W15 (E) - W17(G); V5: W11 (A) - W14 (D); and V3.5:W11 (A) - W13 (C).• For V7.5/V3.5, check cables betweenthe IPA splitter assembly (A21 or A22,as applicable) and the RF terminationassemblies (A47 and A48, asapplicable). These cables include W14and W18, as applicable.• Ensure all RF power modules areonline and installed properly.• If all cables and connections are secureand all modules are installed properly,suspect the IPA splitter assembly (A21or A22, as applicable) or the control/display PWB (A43) fault detectioncircuitry. For dual IPA systems, if thestandby IPA is in operation then thereare no faults with the IPA splitterassembly or the control/display PWB.Possible Associated Faults:- IPA Q3 or Q4 Refld High (V10/V7.5)- IPA Refld High (V5/V3.5)- Q3 or Q4 Latch Off (V10/V7.5)- IPA Latch Off (V5/V3.5)- IPA Fail A or B- IPA Shutdown5.5.2.5 Module Fail A-H or IPA Fail A-BA Module Fail A-H (for V10), A-C & E-G(for V7.5), A-D (for V5), A-C (for V3.5) orIPA Fail A or B alarm occurs when anyRF power or IPA module fault conditionoccurs. These faults include ModuleOffline (Communications Failure), HighModule Temperature, PA Failure, and FanFailure. To reset, press the Reset soft keyin the Status screen. Troubleshoot asfollows: