Polyplanar MR45C Instrukcja Użytkownika Pobierz pdf (Strona 18)

18

Unit not playing CD

CD is extremely dirty or

damage CD, laser

head is dirty, CD was

inserted in reverse

direction or the ambient

is too high

Clean the CD or try

to play a new one,

clean the laser head,

insert the CD with the

label facing upward,

allow to cool the unit

to normal

temperature

Sound skips when

playing CD

The installation angle is

more than 30 degrees

or CD is extremely dirty

or damage CD

Adjust the installation

angle to less than 30

degrees or clean the

CD or try to play a

new one

Cannot read some

USB devices

This unit is not 100%

compatible with all

USB devices or the

USB devices has

special format.

Try to format the USB

device in FAT 16/32

standard

Unit powers off by

itself

The battery may be too

low (the unit operating

voltage is 10.8v to

15.6v).

Unit takes about 45

seconds to recognize

some USB device

This is normal. The

unit sometimes takes

longer time to read all

the files inside the USB

device.

Try to remove the

USB device and

insert it again.

Operations keys does

not work

Completely

disconnect the power

for 1 minute or 2 then

plug it back in again

The unit picks up the

engine noise.

Check the ground

wire.

The PRESET Station

memory is gone after

battery change or

discharge

This is normal. User

has to re-program.

The radio does not

work. The radio

station automatic

selection does not

work

The antenna cable is

not connected or the

signals are too weak

Insert the antenna

cable firmly or select

a station manually

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