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Installation Procedure for the Upgrade
Overview of the Installation Procedure
Some of the following figures provided in this procedure contain bias tees.
Bias tees are included in the Option 219/419 upgrade kits and can be
ignored for Options 217/417 and 222/422.
"Step 1. Obtain a Keyword and Verify the Information."
"Step 2. Remove the Outer Cover."
"Step 3. Remove the Inner Cover."
"Step 4. Remove the Front Panel Assembly."
"Step 5. Remove the A23 Test Set Motherboard."
"Step 6. Remove the A24 IF Multiplexer Board."
"Step 7. Remove Some Cables."
"Step 8. Remove the A27 Mixer Brick Assembly."
"Step 9. Assemble the A28 Mixer Brick Assembly."
"Step 10. Install the A27/A28 Mixer Bricks Assembly."
"Step 11. Assemble the A30 and A31 Reference Coupler Assemblies."
"Step 12. Install the A30 and A31 Reference Coupler Assemblies."
"Step 13. Assemble the A47 and A48 Receiver Attenuator Assemblies."
"Step 14. Install the A47 and A48 Receiver Attenuator Assemblies."
"Step 15. Assemble the A39 and A40 Source Attenuator Assemblies."
"Step 16. Install the A39 and A40 Source Attenuator Assemblies."
"Step 17. Assemble the A52 Port 4 Mechanical Switch Assembly."
"Step 18. Install the A52 Port 4 Mechanical Switch Assembly."
"Step 19. Assemble the A33 - A36 Test Port Coupler Assemblies."
"Step 20. Install the LED Boards and Test Port Coupler Assemblies to the Test
Set Front Plate."
"Step 21. Install the Coupler Plate Assembly to the Deck."
"Step 22. Install the Test Set Cables."
"Step 23. Secure the Front Panel Bulkhead Connectors."
"Step 24. Reinstall the A24 IF Multiplexer Board."
"Step 25. Reinstall the A23 Test Set Motherboard."
"Step 26. Replace the Front Panel's Lower Dress Panel."
"Step 27. Reinstall Front Panel Assembly."
Installation Note N5245-90121
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