TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TAF-550 Installation & Operating Instructions
TiL 96RE187 Rev D
2-1
SECTION 2 – PREPARATION FOR USE
2.1 INTRODUCTION
This section provides the information required for the removal, replacement, adjustment and/ or
custom configuration of the self-contained modular TFM-138B and 91-DE Transceivers.
Custom configuration and adjustments on the TFM-138B include; Internal enable/disable Jumper
selection, Tx power adjustment, Tx microphone level adjustment, Tx side tone level adjustment,
Main and Guard squelch adjustment and Transmitter deviation adjustment. Custom configuration
for the 91-DE Transceiver includes customizing channel frequencies. Channels 0 to 9 can be
configured for fixed frequency operation including transmit inhibit on pres-elected channels.
2.1.1
Disassembly and cover removal
(Refer Figure 2.1)
(1)
Release the (4) clip fasteners securing each front and back cover.
(2)
Remove and retain (4) bottom screws and (4) top screws securing cover to chassis.
(3)
Remove and retain (4) screws on each side securing cover to chassis, then slide the
cover forward and lift it clear of the chassis.
(4)
Reverse the order of the above steps to replace the cover on the TAF-550 chassis.
2.1.2
Removal of TFM-138B)
(1)
Remove TAF-550 cover as described above and then release the (4) Dzus rail mounting
screws on the front panel of the TFM-138B.
(2)
Remove the BNC RF connection from the back of the TFM-138B and then slide it out
approximately 3 inches forward through the front cut-out of the TAF-550 chassis.
(3)
Undo the (2) slotted screws securing the DB-9 connector on the back of the TFM-138B
and slide the unit out of the TAF-550 chassis front cut-out.
(4)
Reverse the order of the above steps to re-install the TFM-138B Transceiver.
2.1.3
Removal of the TiL-91-DE
(1)
Remove the TAF-550 cover and the TFM-138B as described in the previous paragraphs.
Remove the two large mounting screws securing each side of the 91-DE Transceiver.
(2)
Disconnect the two screws securing the DB-9 remote connector on the right side of the
91-DE Transceiver. Remove the DB-9 connector and pull the 91-DE Transceiver
approximately 1 inch through the front cut-out of the TAF-550 chassis.
(3)
Remove the DC and UHF RF connectors located on the back of the 91-DE chassis.
(4)
Slide the 91-DE chassis back through the TAF-550 front cut-out and lift up and out of the
back of the TAF-550 chassis.
(5)
Reverse the order of the above steps to re-install the TiL-91-DE Transceiver in the TAF-
550 modular chassis.
