Installation Instructions - Orban 8100A/XT2 Operating Manual

Installation
2-3
2. INSTALLATI N INSTRUCTI NS
Read " WHAT TO DO " on the preceding page before continuing.
Allow about an hour for installation.
(Installation must be done with the OPTIMOD-FM off-the-air.)
The XT2 should not be installed until the OPTIMOD-FM Audio Processor has been installed
and thoroughly tested on the air.
1) Unpack and inspect.
If you ever re-ship the XT2 (e.g., for servicing), it is best to ship it in the original packing
materials since these have been carefully designed to protect the unit. Make a mental note
of the method of packing and save all packing materials.
Packed with the 8100A/XT2 are:
1) Two 1.8-ohm resistors (for step 2 of RETROFIT INSTRUCTIONS)
2) Four 10-32 x 3/4 " screws (for rack mounting)
3) Two keys for front-panel door
4) Final Factory Qualification Test Results for this unit
5) This Operating Manual
Perform a general inspection of the contents of the package to check for obvious damage.
DAMAGE CLAIMS must be made by you against the carrier immediately upon discovery.
Save packing and other evidence of damage for the carrier ' s inspector.
IMPORTANT: Before continuing, you must follow the RE ROFI INS RUC IONS in this
section if the serial number of your OPTIMOD-FM is below 699000 (see WHAT TO DO on
the preceding page). When the retrofit is complete, return to this step.
2) Reposition jumpers on PTIM D-FM Cards #5, #6, #7, and #8.
a) Open the OPTIMOD-FM 's front panel, remove subpanel.
Jumpers may be reset from the front of the chassis while the unit is in the rack, once
the front panel has been opened and the subpanel removed.
Remove the three hex-socket screws at the top of the front panel with a 5/64 " hex wrench
(provided with unit). Tilt the hinged front panel downward to reveal the interior. Set the
AC POWER switch to OFF. Loosen the four DZUS fasteners on the subpanel by turning
each one-quarter turn counterclockwise with a long 3/16 " or 1/4 " flat-blade screwdriver.
Taking care not to stress the flat cables beneath it, tilt the top of the subpanel outward
and to the left to clear the upper chassis lip and the door support rail at the right.
CAUTION
To avoid trauma to circuit card components, be sure the AC
POWER switch (located behind OPTIMOD-FM ' s front panel)
is set to OFF before removing or inserting any of the printed
circuit cards.