User's Manual

Table Of Contents

EX7100 Technical Manual - Module Descriptions

Removal of the Receiver module

1. Remove the Front-End module as previously described.

Remove the following connectors from the Receiver PCB

PL101, PL102 and PL103.

2. Remove the two stand-offs and two M3 screws and washers that hold the Receiver

module into the casting, then remove the Receiver module, keeping all fastenings in

a safe place.

3. Remove the two stand-offs that retain the Front-End module to the Receiver module

and refit to the new Receiver module.

4. Place four nylon spacers on top of the four bosses and carefully position the new

Receiver PCB into the casting, taking care not to flex the PCB as this can cause

damage to the surface mounted components. Refit the two screws and remaining

stand-offs, tightening carefully.

5. Reconnect connectors PL101, PL102 and PL103 on the Receiver module. Ensure

that all

cables are run as they were prior to removal.

6. Replace the Front-End module as previously described. Ensure that all

cables are

run as they were prior to removal.

7. Inspect the EX7100 terminal to ensure that it is free of foreign material. Remove and

clean as required.

8. Connect the antenna to the terminal. Apply power to the EX7100 rear panel and

switch the terminal on.

9. If necessary, retune the Receiver Front-End module (refer to Section 7.8.3).

10. Reset the receive frequency and other variables as necessary (refer to Section 3 as

required)

11. Return to normal operating mode and check that the link is correctly established. If

not refer to Section 7.8.2 above and Section 5 “Troubleshooting” as required.

12. Replace the bottom cover, taking care to tighten every screw. No screws should be

left over at the end of the job.

13. Re-install the EX7100 back into its rack and re-connect all necessary power,

signalling and antenna cabling.