TROUBLE SHOOTING

Before using the check list please make all the connections first.

If you still have questions after going through the checklist, please consult your local customer service representative.

Common Symptoms

Cause

Solution

 

 

 

 

The car ignition is switched off.

If the power supply is properly connected to

There is no power.

the car accessory, switch the ignition key to

 

" ON " or " ACC " .

 

The fuse has blown.

Replace another fuse according to the wiring

 

 

diagram.

 

 

 

There is no sound.

The volume control is set too low.

Turn up the volume properly.

 

 

The device has not been correctly

Check the power and earth connection

 

 

connected.

according to the wiring diagram.

The operation keys

The built-in microcomputer is not

Switch the device off and on again. Or press

do not work

operating properly due to noise

the RESET button to resume the program.

 

 

 

No radio reception.

The antenna cable is not connected.

Insert the antenna cable firmly into the

antenna socket of the device.

 

 

 

In automatic search

 

 

mode the radio does

The transmission signals are too

Tune in to a radio station manually.

not stop at a trans-

weak.

 

mitting station.

 

 

 

 

 

 

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*When TA is on, SEEK, (SCAN), AUTO MEMORY function can be received or saved only when traffic program identification code has been received.

When TA is ON, traffic program identification code is not received during specified time.

13.AF [ALTERNATIVE FREQUENCIES] BUTTON

When pressed briefly, AF switching mode is selected and the state of AF switching mode is displayed by AF segment in display.

Segment off: AF switching mode off.

Segment on: AF switching mode on, and has RDS information.

Segment flashing: AF switching mode on, but RDS information is not received yet. When AF switching mode is selected, the radio checks the signal strength of AF all the time. The interval of checking time of each AFs depends on the signal strength of current station, from a few minutes for a strong station to a few seconds for weak station. Every time that new AF is stronger than current station, it switches over to that frequency for very short time, and NEW FREQUENCY is displayed for 1-2 seconds.

Because the mute time of AF switching or checking time is very short, it is almost inaudible in case of normal program.

During FM mode, when AF is on, SEEK, (SCAN), AUTO-MEMORY function can only receive and save RDS program.

14.AS/PS BUTTON (Auto-storage /Preset scan) During radio mode:

1)When pressing and holding for more than 1 second, the radio searches from the current frequency and checks the signal strength level until 6 station are found. And then the 6 stations are preset to the corresponding preset memory numbered bank. The auto-storage operation is implemented in each selected band. When the auto-storage operation is finished, the radio executes the Preset scan.

2)When briefly pressing, the radio searches for each preset station in the current band and holds at that preset number for 5 seconds while releasing mute, and then searches again.

During SD/MMC or USB mode:

Press the AS/PS button, this activates TRACK SEARCH mode:

In TRACK SEARCH mode, the LCD will display TRK T "0" and flashes the biggest digit 0 that the SD/MMC card or USB stick contains.

Then press the VOL+ or VOL- button to select the number of the flashing digit from 0 ~ 9. Then press SEL button to confirm the number and flash next smaller digit 0. With the same means, select the number of the flashing digit with VOL+/-.

After finishing selecting the number of all flashing digit, press SEL button to play the track of the selected serial number.

Press the AS/PS button twice, this activates TRACK SEARCH mode:

In FIRST CHARACTER SEARCH mode, the LCD will display A--......, If there are files names its first character A, the ......is the first file name, its first character is A by the order of A~Z and 0~9; otherwise, the ......is NONE. (If there are some songs in character A, press the >>I and I<< to select your favourite.)Then press the VOL+ or VOL- button to select file’s first character by the order of A~Z and 0~9. Press the AS/PS button thrice, this activates TRACK SEARCH mode:

In DIRECTORY SEARCH mode, the LCD will display the root folder(if there is no root folder, it will find a root folder named ROOT). Then press the VOL+ or VOL- button to select your desired folder and then press >> or << button to select your desired track in the folder.

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Boss Audio Systems mr1315bua manual Trouble Shooting, AF Alternative Frequencies Button