Remove the RF Unit

Arguably the most tedious part of the process. Given the fact I've removed the assembly a gazillion times while researching material for this thread, I can complete the task in about 10 minutes - assuming both top and bottom covers are already off the rig. Follow the process below and it's pretty easy:

- Be sure the rig is disconnected from mains power
- Unplug all harnesses from the Counter Unit and remove it from the rig
- Remove the Counter Unit bracket from the rig (2 screws)
- Remove the PA Compartment cover
- Use a shorting stick to short the top of the PA choke to a nearby ground
- Label the front-most PA tube then remove both tubes and set in a safe place
- Remove the PA Load knob and shaft (2 2mm set screws at front of flexible coupler)
- Remove the PA Tune shaft (loosen 4 screws on front coupler, front one on rear coupler, slide front coupler so as to permit shaft extraction)
- Loosen the Drive shaft coupler screws (4) then push the coupler as far forward as it will go
- Disconnect all header plugs and TMP plug (1) from the RF Unit. If unsure about where they go, take close-up photographs before removing them
- Remove band switch shaft tension springs (3) from the shaft. One is located between band switch wafers and the other two are attached to bulkheads
- Rotate the band switch to 1.5MHz. Locate the PA Tank bandswitch coupler (adjacent to front tube socket). Loosen both 2mm hex set screws
- Rotate the band switch to 10MHz. Loosen both 2mm set screws, then pull the bandswitch shaft all the way out. Avoid misaligning the wafers as you remove the shaft
- Remove 7 round-head sheet metal screws from the RF Unit
- Use an ~800 degrees F iron to remove the white wire that's soldered to the rear-most variable capacitor frame (530/830)
- De-solder the NFB wire from the PA Compartment feed-through insulator and remove (830 only)
- Stand the rig on its left side, locate the DRV wire at the rear right of the RF Unit (foil side) and de-solder (530/830)
- Lay the rig back down and lift the RF Unit out of the chassis. Remove the Driver tube and shield (optional). Set both rig and RF Unit aside.