hifi engine

Akai GX-4000D main Belt Drive

Anyone know how to change the main drive belt on an Akai GX-4000D recorder ?
After checking the service manual it would appear that you have to dis-mantel the
entire unit to change the belt as it's behind the drive motor and the screws have to
be removed after removing the front panel.
Can't figure out how to remove the switches (play--forward--reverse etc.) ?
Thanks for any help