Nautel GV60 Troubleshooting Manual

Contents

Nautel GV60 Troubleshooting Manual Manual pdf 89 page image

GV60 TROUBLESHOOTING MANUAL RESPONDING TO ALARMSVERSION 1.0 2018-01-01 PAGE 4.1.814. From the front of the transmitter, pull the power supply modules that are mated with the suspectpower supply interface PWB forward so that they disengage from the PWB.5. From the rear of the transmitter, disconnect the mating connectors and wiring from the suspectpower supply interface PWB. Record the placement of all wiring and jumpers to ensure thereplacement PWB connections are identical.6. Remove 24 sets of M3 nuts and washers that secure the power supply interface PWB to thetransmitter and pull out the power supply interface PWB.7. Obtain a replacement power supply interface PWB (Nautel Part # NAPI150A/01) and install it byreversing the instructions in Step 1 through Step 6.8. Re-install the power supply modules.9. Enable and turn on ac power to the transmitter.10. Return the transmitter to service.UPS Interface Power Supply ReplacementSee Figure 4.1.33 on page 4.1.82.1. Turn off and lock out the transmitter’s main ac power.2. Remove the rear, right-hand top panel, which is secured with 1/4-turn fasteners.3. From the rear of the transmitter: Disconnect the power cable to the UPS Interface assembly by removing the 220 V ac plug(Nautel Part # JD43) from the UPS Interface assembly at J1. Remove the six M4 screws that secure the UPS Interface to the transmitter and retain.Disconnect the wiring from the terminal block on the defective power supply (Nautel part #UG31), noting connections. Remove the UPS Interface assembly from the transmitter to gain access to the four M4 screwsthat secure power supply from underneath. Remove the four M4 screws and retain.