Subject:  Tech. Memo...Subjct:  Mouse Repair


This memo is from an unnamed computer company. It went to all field 
engineers about a computer peripheral problem. The author of this 
memo was quite serious.  The engineers rolled on the floor.

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"Mouse Balls"

Mouse balls are now available as FRU  (Field Replacement Unit).

Therefore, if a mouse fails to operate or should it perform
erratically, it may need a ball replacement.

Because of the delicate nature of this procedure, replacement of
mouse balls should only be attempted by properly trained personnel.

Before proceeding, determine the type of mouse balls by examining the
underside of the mouse.  Domestic balls will be larger and harder than
foreign balls.

Ball removal procedures differ depending upon the manufacturer of the
mouse.

Foreign balls can be replaced using the pop-off method.  Domestic 
balls are replaced by using the twist-off method.

Mouse balls are not usually static-sensitive.  However excessive 
handling can result in sudden discharge.

Upon completion of ball replacement, the mouse may be used
immediately,  It is recommended that each technician have a pair of
spare balls for maintaining optimum customer satisfaction.

Any customer missing his balls should suspect local personnel of
removing these necessary items.