Change voltage of CD94 from Euro to US?

There are several versions, some switchable, others not.
U/UC version: 120V
E version: 110/120V/220/240V
T/W version: 220/240V no mains filter
A/N version: 220/240V
If you have any of the latter two, you have to use an external step-up transfomer of about 30W. It can be also an autotransformer.