If you've flipped the yellow lever holding the handle to the body and removed the only screw between the extruded aluminium neck and the plastic top you'll have been disappointed to discover that there is only about an inch of movement before the tension starts. Don't pull any harder because the secret is to put a flat screwdriver under the raised bit of plastic at the back of the neck just above the screw. A twist of the blade will split the handle apart and reveal a standard cable clamp with the wires going to 'plug like' terminals held by two screws. Make a note of how the cable clamp holds the grey cable and how the long inner cable lengths also clip into the top of it.
If you did pull hard earlier and managed to get the plastic further out of the neck then you probable pulled the cable spades off the terminals by the cable clamp. These can be easily pushed back onto the connectors.
I got many Browny Points from the management for this fix but, well; they don't seem to go as far as they used to. There's no lasting rosy glow to bask long in these days. I'm sure I'm not alone....
Everyman
August 2010