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-EN
In Case of Difficulty
Basic
No function or display.
• Vehicle’s ignition is off.
- If connected according to the instructions, the unit will not
operate with the vehicle’s ignition off.
• Improper power lead connections.
- Check power lead connections.
• Blown fuse.
- Check the fuse on the battery lead of the unit; replace with the
proper value if necessary.
• Internal micro-computer malfunctioned due to interference
noise, etc.
- Press the RESET switch with a ballpoint pen or other pointed
article.
No sound or unnatural sound.
• Incorrect setting of volume/balance/fader controls.
- Readjust the controls.
• Connections are not properly or securely made.
- Check the connections and firmly connect.
Screen not displayed.
• Brightness/Contrast control is set at the minimum position.
- Adjust the Brightness/Contrast control.
• Temperature in the vehicle is too low.
- Increase the vehicle’s interior temperature to operation
temperature range.
• Connections to the DVD are not securely made.
- Check the connections and firmly connect.
• The Parking Brake Lead is not connected.
• The Parking Brake is not engaged.
- Connect the Parking Brake Lead, then engage the Parking
Brake. (See page 88)
Movement of displayed picture is abnormal.
• Temperature in the vehicle is too high.
- Allow the vehicle’s interior temperature to cool.
Radio
Unable to receive stations.
• No antenna, or open connection in the antenna cable.
- Make sure the antenna is properly connected; replace the
antenna or cable if necessary.
Unable to tune stations in the seek mode.
• You are in a weak signal area.
- Make sure the tuner is in DX mode.
• If the area you are in is a primary signal area, the antenna may
not be grounded and connected properly.
- Check your antenna connections; make sure the antenna is
properly grounded at its mounting location.
• The antenna may not be the proper length.
- Make sure the antenna is fully extended; if broken, replace the
antenna with a new one.
Broadcast is noisy.
• The antenna is not the proper length.
- Extend the antenna fully; replace it if it is broken.
• The antenna is poorly grounded.
- Make sure the antenna is grounded properly at its mounting location.
• The station signal is weak and noisy.
- If above solution does not work, tune in another station.
Disc
Disc playback sound is wavering.
• Moisture condensation in the disc Module.
- Allow enough time for the condensation to evaporate (about 1
hour).
Disc insertion not possible.
• A disc is already in this unit.
- Eject the disc and remove it.
• The disc is being improperly inserted.
- Insert the disc correctly. (See page 15)
Unable to fast forward or backward the disc.
• The disc has been damaged.
- Eject the disc and discard it; using a damaged disc in your unit
can cause damage to the mechanism.
Disc playback sound skips due to vibration.
• Improper mounting of the unit.
- Securely re-mount the unit.
• Disc is very dirty.
- Clean the disc.
• Disc has scratches.
- Change the disc.
• The pick-up lens is dirty.
- Do not use a commercially available lens cleaner disc. Consult
your nearest Alpine dealer.
Disc playback sound skips without vibration.
• Dirty or scratched disc.
- Clean the disc; a damaged disc should be replaced.
CD-R/CD-RW/DVD-R/DVD-RW/DVD+R/DVD+RW playback
not possible.
• Close session (finalisation) has not been performed.
- Perform finalisation and attempt playback again.
Error displays.
• Mechanical error.
- Press
. After the error indication disappears, insert the disc
again. If the above-mentioned solution does not solve the
problem, consult your nearest Alpine dealer.
MP3/WMA/AAC is not played back.
• Writing error occurred. The CD format is not compatible.
- Make sure the CD has been written in a supported format.
Refer to “About MP3/WMA/AAC” (pages 22 to 23), then
rewrite in the format supported by this device.
Unit does not operate.
• Condensation.
- Wait a while (about 1 hour) for the condensation to dry.
If you encounter a problem, please turn the power off, then on again.
If the unit is still not functioning normally, please review the items in
the following checklist. This guide will help you isolate the problem
if the unit is at fault. Otherwise, make sure the rest of your system is
properly connected, or then consult your authorised Alpine dealer.
Summary of Contents for INE-W990BT
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