Sony VGF-WA1 - Manual (Page 60)

60
VGF-WA1 3-094-116-11(1)
Cleaning
Clean this device with a soft cloth. If this device
becomes very dirty, clean it with a soft cloth
slightly moistened with a mild detergent solution.
Be careful to keep the jacks from getting wet. Do
not use thinner, benzene, alcohol, etc., because
they can cause damage to the surface of this
device.