5-4.10 RF Amplifier (AR1-AR4), Removal/Installation.
T h e RF Amplifiers are
removed/installed as follows:
R e m o v e A10, refer to para 5-4.3. Store A10 safely.
R e m o v e and retain 18 socket-head screws, washers, and two threaded stand-
off posts securing the rear panel to the chassis.
T a k i n g care not to strain the cable-harness, lower and s u p p o r t t h e r e a r
D i s c o n n e c t the cable connected to the OUT connector on t h e assembly.
Disconnect the cable from the attenuator.
Label and unsolder the wires connected to the terminals of the assembly.
R e m o v e and retain the four screws and washers securing the assembly to the
Remove and retain the attenuator from the IN connector.
Use insulated sleeving (heat-shrink) of appropriate inside diameter
on soldered connections.
Torque SMA c o n n e c t o r s t o 8 - i n c h p o u n d s .
To install a replacement, reverse the procedure detailed in steps a. thru
Fan (B1), R e m o v a l / I n s t a l l a t i o n .
B1 is removed/installed as follows:
Remove top access cover, refer to para 5-4.1.
Locate the yellow/white wire connecting B1 to CB2-2.
W h e n unfastening cable-ties, t a k e care not to cut or damage the wire
Unfasten cable-ties and release the yellow/white wire from the harness.
Connections to C1 are as follows:
red/white and wire to TB1-7D at
front panel end, green/white to rear panel end.
U n s o l d e r the wires from both ends of C1.