Lenovo 3000 J Series User Manual

Page 77

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7.

Look

for

a

build

up

of

dirt

on

the

plastic

rollers

3

inside

the

ball

cage.

This

build

up

usually

appears

as

a

stripe

running

across

the

middle

of

the

rollers.

8.

If

the

rollers

are

dirty,

clean

them

by

using

a

cotton

swab

soaked

in

isopropyl

(rubbing)

alcohol.

Turn

the

rollers

with

your

finger

and

continue

swabbing

them

until

all

the

dirt

is

removed.

Be

sure

the

rollers

are

still

centered

in

their

channels

after

you

clean

them.

9.

Remove

any

fibers

from

the

swab

that

might

be

remaining

on

the

rollers.

10.

Replace

the

ball

and

the

retainer

ring.

Twist

the

retainer

ring

to

the

locked

position.

11.

Reconnect

the

mouse

cable

to

the

computer.

12.

Turn

your

computer

back

on.

Chapter

7.

Troubleshooting

and

diagnostics

59