Park Air Systems Limited B63300HS Benutzerhandbuch
T6T 300 Watt VHF Transmitter
Page 107
Maintenance
Refitting
To refit the Interface module, proceed as follows:
(1)
Place the module in position. Ensure no wires are trapped by the module.
(2)
Ensure the module interface connectors CN5 and CN8 are located correctly and are aligned with
the screw holes in the rear panel. Fit the four screwloc 8 mm-4-40 UNC screws and wavy
washers, previously removed, but leave them loose.
the screw holes in the rear panel. Fit the four screwloc 8 mm-4-40 UNC screws and wavy
washers, previously removed, but leave them loose.
(3)
Fit the two M3 x 8 mm screws, previously removed, that secure the blanking plate and Interface
module, but leave them loose.
module, but leave them loose.
(4)
Fit the five M3 x 8 mm screws, previously removed, that secure the module to the transmitter
mainframe, but leave them loose.
mainframe, but leave them loose.
(5)
Using a 5 mm nut spinner tool, tighten the four screwloc 8 mm-4-40 UNC screws and wavy
washers that secure the connectors; then tighten all seven M3 x 8 mm screws that secure the
module to the amplifier mainframe.
washers that secure the connectors; then tighten all seven M3 x 8 mm screws that secure the
module to the amplifier mainframe.
(6)
Refit the following connectors to the module:
❑
CN2 10-way connector (10-way loom from Combiner BIT module CN15)
❑
CN3 SMB connector (coaxial cable from Combiner BIT module CN27)
❑
CN4 SMB connector (coaxial cable from Combiner BIT module CN16)
❑
CN6 15-way connector (15-way ribbon cable from PSU Regulation module CN1)
❑
CN7 10-way connector (10-way ribbon cable from Front Panel PCB).
(7)
Connect the drive assembly cables at CN5 and CN8. Connect the antenna cable to the
Combiner.
Combiner.
(8)
Re-establish the ac and/or dc supplies.
(9)
Switch power on at the radio using the rear mounted Supply switch.
(10) Ensure the front panel Ready indicator is lit and the Alarm indicator is unlit.
(11) Carry out the Calibrate routine using the Virtual Front Panel (VFP), as detailed in the procedure
(12) Carry out a BIT interruptive test as detailed in the procedure
(13) Set the rear panel Supply switch to Standby and remove the VFP connector. Isolate the amplifier
from the ac and/or dc supplies.
(14) Refit the amplifier top cover. The transmitter can now be returned to service.