Corrective Action - NORAUTO NS-312 BT MFI Manual De Uso

Troubleshooting
What appears to be trouble is not always serious. Please check the following points before calling
a service center.
Problem
Unit can not power on
Remote control does not
work
No/low audio output
Poor sound quality or
distortion
Tel-Mute malfunction
Unit resets itself when
engine is off
Monitor does not open
automatically
Warning information is
shown at all times
F l a s h i n g i m a g e o r
interference appears on
screen
Cause
General
Unit fuse blown.
Car battery fuse blown.
Illegal operation
Battery depleted.
Battery installed incorrectly.
I m p r o p e r a u d i o o u t p u t
connection.
Volume set too low.
Speakers damaged.
Heavily biased volume balance.
Speaker wiring is in contact
with metal part of car.
Piratic disc is in use.
Speaker power rating does not
match unit.
Wrong connections.
Speaker is shorted.
MUTE wire is grounded.
Incorrect connection
between ACC and BATT.
TFT monitor
TFT Auto Open is turned off.
Parking break wiring is not
correct.
The color system of DVD disc
does not match the monitor.
Piratic disc is in use.
Video cable damaged.
I m p r o p e r v i d e o s i g n a l
connections.

Corrective action

Install new fuse with correct rating.
Install new fuse with correct rating.
Reset the unit.
Change the battery.
Install the battery correctly.
Check wiring and correct.
Increase volume level.
Replace speakers.
Adjust the channel balance to center
position.
I n s u l a t e a l l s p e a k e r w i r i n g
connections.
Use original disc.
Replace speakers.
Check wiring and correct.
Check wiring and correct.
Check the 'MUTE' wiring and correct.
Check wiring and correct.
Turn TFT Auto Open on.
Check wiring and correct.
Adjust the color system of the DVD
disc playing back or the monitor in
use.
Use original disc.
Replace cables.
Check wiring and correct.
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