Page 5-36 V10/V7.5/V5/V3.5 Installation and Operation ManualIssue 3.5 Section 5 System Level Troubleshooting5.15.1 Control/Display PWBReplacementVerify paragraph 5.15 has been completed,and then perform necessary adjustmentsas follows:(a) Install battery (BT1). Clear the EventsLog. Set the Real-Time Clock on thefront diagnostic display.(b) Verify preset parameters andthresholds are as desired.(c) Verify Meter Scale Factors are equal tothe factory set values of the originalPWB (see Scale Factor sheet).NOTEA paper copy of the Scale Factor sheet isprovided with the Critical Parameterssheet. The information is provided as areference and troubleshooting aid.(d) Return the transmitter to ‘on-air’operation.(e) Press Control – RF On.5.15.2 Remote Interface PWBReplacementVerify paragraph 5.15 has been completed,and then perform necessary adjustmentsas follows:(a) Ensure jumpers E1 - E21 are setaccording to remote control/monitoringrequirements (single ended ordifferential input).(b) Return the transmitter to ‘on-air’operation.5.15.3 Interconnect PWBReplacementVerify paragraph 5.15 has been completed,and then perform necessary adjustmentsas follows:NOTEA special extraction tool is required toremove wires/cables from the interconnectPWB connectors. The spares kit, ifpurchased, contains a tool (Nautel Part #HAS69, Vendor # DMC DRK38) for thispurpose. Contact Nautel before attemptingto replace an interconnect PWB.(a) Ensure dipswitches S1 and S2 are setfor the applicable PWB location asshown in Table 3-5.(b) Torque mounting hardware to 6 in-lbs(0.67 N-m).(c) Return the transmitter to ‘on-air’operation.5.15.4 Miscellaneous PWBReplacementReplacement of the following PWBsrequires no testing or adjustment:• Fan Distribution PWB (A12)• Control/Display Interface PWB (A45A1)NOTEAll other PWBs and assemblies are part ofsub-assemblies and do not require testingor adjustment or they are factory set.5.16 COAXIAL CABLEREPLACEMENTCoaxial cables in the transmitter’s RF driveand power stages are made using specificmaterial and cut to pre-determined lengths.If a replacement coaxial cable is required,contact the factory.
