Hitachi GPS Receiver MMP-501B 用户手册

18

If you experience any of the following diffi culties while using the player, use this troubleshooting guide to 
help you remedy the problem.  Should any problem persist, consult your nearest service center.

The player does not start.

The battery may be exhausted.

Recharge the battery.

The AC power plug or the car 
power adaptor may be loose or 
not plugged in.

Ensure the AC power plug is 
secured into the wall outlet 
or the car power adaptor is 
secured into the car cigarette 
lighter socket.

The player does not have 
sound.

The volume is set to minimum.

Increase the volume level.

The touch screen is too dark.

The touch screen is not bright 
enough.

Increase the brightness level.

The player does not receive 
GPS signals.

The GPS antenna is unable to 
receive signal.

Check the position of the 
player in the vehicle.  The GPS 
antenna requires a clear view of 
sky to receive information from 
the GPS satellites.

Ensure the GPS antenna is 
in the horizontal position.  If 
the player is used in a vehicle 
with heated or heat-refl ecting 
windscreen, connect it with an 
external antenna in order to 
receive the GPS signals.

The player has lost GPS 
reception.

The player is experiencing poor 
GPS coverage.

The GPS signal is interrupted 
due to tunnels, tall buildings, 
snowing, etc.  When the 
obstruction is cleared, the 
player should re-acquire 
satellite signals in a few 
seconds.

MMP-501B IM (3Aug07).indd   Sec1:18

MMP-501B IM (3Aug07).indd   Sec1:18

03-08-2007   4:21:14 PM

03-08-2007   4:21:14 PM