User's Manual Part 3

RF Filter Tray – continued

MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 9-57

PRELIMINARY

Table 9-31: Procedure to Remove Filter Tray Kit SGLF4152

Step Action

1 Perform the preparation procedure described in Table 9-30.

2 Using a screwdriver with T20 star bit, remove two screws securing the Filter Tray Assembly to the

chassis.

3 Disconnect the RF cables (Input) in the following order:

– RX MAIN connector (blue)

RX DIV connector (green)

RX RFL–MAIN connector (blue)

RX RFL–DIV connector (green)

RX FWD–DIV connector (green)

4 Hold cables to one side and slide out filter tray to expose cables attached to rear connector (Output) of

each filter.

5 Disconnect RX MAIN cable (blue).

6 Disconnect RX DIV cable (green).

7 Remove Filter Tray completely.

cMPC Cable Clip Removal

Procedure

Follow the procedure in Table 9-32 to remove the cMPC cable clip. The

cMPC cable clip is located just inside the front of the BTS, on the CCP2

shelf on the right side (looking into the BTS).

Table 9-32: Procedure to Remove cMPC Cable Clip

Step Action

NOTE

cMPC cable clip only needs to be removed if filter tray is not replaced with the same type. Clip

removal is to accommodate other filter tray configurations or cable replacement.

1 Using a small, flat blade screwdriver, reach in and simultaneously lift tab and push towards the front

of the BTS. See Figure 9-21.

2 Using thumb and forefinger grasp tab (narrow end), and pull up and towards rear to pop out clip.

3 Remove clip and place a side.

4 Remove the RX MAIN (blue) and RX DIV (green) cables.