41
English
NX702
17. TROUBLE SHOOTING
GENERAL
Problem
Cause
Measure
Unit can not
power on.
Unit fuse blown.
Replace with new fuse of correct rating.
Car battery fuse blown.
Replace with new fuse of correct rating.
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Turn on the ACC
Unit can not
power on.
Nothing happens
when buttons are
pressed.
Display is not
accurate.
The microprocessor has
malfunctioned due to noise, etc.
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RESET
]
button with a thin rod.
Note:
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RESET
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ÌÀ½ÈÇϽÊƖLj
LjÀ½ÆÌÀ½ǀ
RESET
ǁºÍÌÌÇÆÁËÈʽË˽¼Ɠ
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Remote control
does not work.
Battery depleted.
Change the battery.
Battery installed incorrectly.
Install the battery correctly.
No/low audio
output
Improper audio output connection. Check wiring and correct.
Volume set too low.
Increase volume level.
Speakers damaged.
Replace speakers.
Heavily biased volume balance.
Adjust the channel balance to center position.
Speaker wiring is in contact with
metal part of car.
Insulate all speaker wiring connections.
Poor sound quality
or distortion
Non-standard disc used.
Use a standard disc.
Speaker power rating does not
match unit.
Replace speakers.
Wrong connections.
Check wiring and correct.
Speaker is shorted.
Check wiring and correct.
Unit resets itself
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Incorrect connection between
ACC and Battery.
Check wiring and correct.
Battery voltage is too low
Charging the battery, or replace the new battery.
The display is
dark.
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The operating condition is not
good.
The temperature inside the vehicle may be 0°C
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The headlight of the vehicle is lit.
The display is made dark at night to prevent
the glare (When the headlight of the vehicle is
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There are red,
green, and blue
points in display
____________________
This is not a faiure, but a phenomenon peculiar
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panel is produced according to technology
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there are effective pixels of 99.99% or more,
pixel missing or normally lit pixels account for
