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-EN
•
HPF (high pass filter): Cuts the lower frequencies and allows the
higher frequencies to pass.
•
LPF (low pass filter): Cuts the higher frequencies and allows the
lower frequencies to pass.
•
Slope: The level change (in dB) for a frequency change of one octave.
•
The higher the slope value, the steeper the slope becomes.
•
Adjust the slope to FLAT to bypass the HP or LP filters.
•
Do not use a tweeter without the HPF on or set to a low frequency, as
it may cause damage to the speaker due to the low frequency content.
•
You cannot adjust the crossover frequency higher than the HPF or
lower than the LPF.
•
Adjustment should be made according to the recommended crossover
frequency of the connected speakers. Determine the recommended
crossover frequency of the speakers. Adjusting to a frequency range
outside that recommended may cause damage to the speakers.
For the recommended crossover frequencies of Alpine speakers, refer
to the respective Owner’s Manual.
We are not responsible for damage or malfunction of speakers caused
by using the crossover outside the recommended value.
In Case of Difficulty
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 consult your authorized Alpine dealer.
No function or display.
• Vehicle’s ignition is off.
- If connected following instructions, the unit will not operate
with the vehicle’s ignition off.
• Improper power lead (Red) and battery lead (Yellow)
connections.
- Check power lead and battery lead connections.
• Blown fuse.
- Check the fuse 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 ball-point pen or other pointed
article.
Unable to receive stations.
• No antenna or open connection in 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 the 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.
MP3, WMA or AAC is not played back.
• Writing error occurred. The MP3/WMA/AAC format is not
compatible.
- Make sure the MP3/WMA/AAC has been written in a
supported format. Refer to “About MP3/WMA/AAC”
(pages 18-19), then rewrite in the format supported by this
device.
Level adjusting
(0 to –12 dB)
Output frequency range
Slope FLAT
Slope adjusting
20 Hz
HPF cut-off
frequency
LPF cut-off
frequency
(Different from actual display)
Information
Basic
Radio
MP3/WMA/AAC
Summary of Contents for iDA-X311
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