Trouble Shooting - Clarion M502 Owner's Manual & Installation Manual

Bluetooth Operations
Note:
Playing order will depend on Bluetooth audio
player. When press the [CONTROL] knob(left)
or [ ] button on the remote control is
pressed, some A2DP devices will restart
the current track depends on the duration of
playback.
During music streaming playback, "A2DP" will
be shown on the display. Information about
tracks (e.g. the elapsed playtime, song
title, etc.) cannot be displayed on this
unit. When A2DP device is disconnected,
"BLUETOOTH DISCONNECT" will be shown
on the display
and return to previously selected audio
source. Some Bluetooth audio players may
not have play / pause synchronized with this
unit. Please make sure both device and main
unit are in the same play / pause status in BT
MUSIC mode.
ID3 display
During music streaming playback, for music
information that is longer than the display
panel:
When SCROLL is ON, the LCD will display ID3
TAG information cyclely, e.g:
ALBUM->TITLE->ARTIST..
When SCROLL is OFF, the LCD will display
one of the ID3 TAG information, the default
is TRACK, but user can adjust it to other ID3
TAG information by press the [DISP] button on
the remote control.
14
M502

5. TROUBLE SHOOTING

GENERAL
Problem Cause
Unit fuse blown.
Unit can not
power on.
Car battery fuse blown.
Unit can not
power on.
Nothing happens
when buttons are The microprocessor has
pressed. malfunctioned due to noise, etc.
Display is not
accurate.
Improper audio output connection. Check wiring and correct.
Volume set too low.
No/low audio Speakers damaged.
output.
Heavily biased volume balance.
Speaker wiring is in contact with
metal part of car.
Speaker power rating does not
match unit.
Poor sound quality
or distortion. Wrong connections.
Speaker is shorted.
Unit resets itself Incorrect connection between
when engine is off. ACC and Battery.
USB Devices
Problem Cause
The USB device has been
USB device cannot
inserted with wrong direction.
be inserted.
The USB connector is broken.
The USB device is damaged.
USB device is not
recognized.
Connectors are loose.
No sound heard
No MP3/WMA file is stored in
with the display "No
the USB device.
File" shown.
Sound skips or is MP3/WMA files are not encoded
noisy. properly.
Measure
Replace with new fuse of correct rating.
Replace with new fuse of correct rating.
Turn off the power.
Press the [RESET] button with a thin rod.
Note:
When the [RESET] button is pressed, turn off
the ACC power.*
* When the [RESET] button is pressed,preset
radio stations, titles, etc. stored in memory
are kept.
Increase volume level.
Replace speakers.
Adjust the channel balance to center position.
Insulate all speaker wiring connections.
Replace speakers.
Check wiring and correct.
Check wiring and correct.
Check wiring and correct.
Measure
Reversing the connection direction of the USB
device, try it again.
Replace with a new USB device.
Disconnect the USB device and reconnect. If
the device is still not recognized, try replacing
with a different USB device.
Store these files properly in the USB device.
Use MP3/WMA files encoded properly.