User's Manual

Table Of Contents

EX7100 Technical Manual - Module Descriptions

6. Remove the two screws and two stand-offs holding the Receiver module into the

casting and remove the module. Remove the other two stand-offs from the module,

as these will be needed for the replacement unit. Keep all fastenings in a safe place.

7. Refit the two stand-offs and nuts to the new Receiver PCB. 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 two stand-offs, tightening carefully.

8. Replace the Receiver Front-End Module and four mounting screws.

9. Re-connect all cables as removed in 4. above. Ensure that all

cables are run as they

were prior to removal.

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

clean as required.

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

switch the terminal on.

12. If necessary, retune the Receiver Front-End module (refer to Section 7.7.3).

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

required)

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

not refer to Section 7.7.2 above and Section 5 “Troubleshooting” as required.

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

left over at the end of the job.

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

signalling and antenna cabling.