Boss Audio Systems BV7943 User Manual Download Page 23

22

Troubleshooting Guide

Specifications

GENERAL

Operating Power......................................................12 Volts DC, Negative Ground

Wattage...................................................................................................80WX4CH 

Speaker output.......................................................................................4 speakers

Front Pre-amp Output..........................................................................................1v

Output Impedance............................................................................... 4 to 8 Ohms

Fuses................................................................................................................10 A

Dimensions............................................................................7” (W) x 7” (D) x 2” (H)

Weight............................................................................................................4.4 lbs

CD PLAYER

Signal / Noise Ratio.......................................................................................>80dB 

Frequency Response.........................................................................20 Hz~20KHz

Channel Separation.......................................................................................>50dB

D / A Converter................................................................................................16 Bit

FM TUNER

Tuning Range.............................(USA) 87.5 - 107.9MHz, (Europe) 87.5 - 108 MHz

FM Sensitivity.................................................................................................12dBu

Stereo Separation @ 1 Khz..............................................................................35dB

AM TUNER

Tuning Range..................................(USA) 530-1710 KHz, (Europe) 522-1620 KHz 

AM Sensitivity.............................................................................................30dBu

CD’s cannot be loaded

PROBLEM

No Power

Some errors occur in 

the LCD or nothing func-

tions when buttons are 

pressed.
Unable to receive sta-

tions

Poor radio reception

CAUSE/SOLUTION

Check wiring connections.

Check and make sure the fuse is not blown.

Replace with the proper rating/size fuse. 

Press the RESET Button.

Check and make sure the antenna is connected 

properly.
Check and make sure the antenna is the correct 

length. Make sure the antenna is not broken. If the 

antenna is broken, replace it. The antenna is poor-

ly grounded. Check and make sure the antenna is 

grounded at mounting location.
A CD is already loaded in the player. Eject CD.
The CD is dirty or damaged.

Songs keep skipping
File information shows in 

LCD but will not play.

Your file may be corrupt. 

Summary of Contents for BV7943

Page 1: ......

Page 2: ...Unit 8 Basic Operation 9 10 RadioOperation 11 12 DVD VCD CD MP3 WMA Operation 13 17 Setings Sound 18 Other Operation 19 Maintenance 20 IR Remote Control 21 Troubleshooting Guide 22 Specifications 22 T...

Page 3: ...lation Be sure to connect the negative speaker leads to the negative speaker terminal Never connect the negative speaker leads to chassis ground This unit is only designed for use with 4 speakers Do...

Page 4: ...d The current capacity of the lead will be exceeded causing overheating Since a unique audio I C circuit is employed never wire so the speaker leads are directly grounded or the left and right speaker...

Page 5: ...this unit should be professionally installed by a VAT registered installer this is a requirement to validate the warranty IMPORTANT Remove the two transport screws from the top fo the unit before inst...

Page 6: ...es See wiring con nections diagram Insert radio into dashboard Then apply the trim frame to outside of radio 4 Support radio using rear mounting bolt and steel bar not included DIN Front Mount WARNING...

Page 7: ...the screw holes at the sides of the unit and the holes of the existing vehicle mounting bracket 1 Remove the hooks on both sides 2 Aligh the screw holes of the mounting bracket supplied with the car...

Page 8: ...nect to Auto antenna or power amp control wire remote connection Maximum current 500mA Speaker Wiring Notes Follow the above wiring diagram to install the head unit with new or existing speakers 1 Thi...

Page 9: ...8 Controls Of The Unit...

Page 10: ...screen back on 3 Mode Selection Press the MOD Button on the front panel to cycle the Play Mode between RADIO AUX Blue Tooth and AV IN Play mode can be chosen by touching on the Main User Interface als...

Page 11: ...ess VOL knob until the display shows FAD then use the VOL DN UP knob to adjust the balance between the front rear speakers 13 Clock Press the CLK button on the panel to show the time on the display 14...

Page 12: ...n to adjust the radio frequency step by step Automatic tuning In default tuning mode AUTOSEEK Press or left or right arrow on the screen once to adjust the radio frequency automaticly Press the or lef...

Page 13: ...matic Store Preset Scan A Automatic Scan Store Press and hold the APS Button for 3 seconds The receiver will automatically scan and save the 6 strongest available stations as the 6 preset memories of...

Page 14: ...ote con trol during playback to return to the opening screen to get the menu The disc will go back to the opening screen if PBC button is pressed B While you are playing CD the monitor will show the d...

Page 15: ...PBC on and PBC off mode 4 Selecting Tracks Press SEEK or SEEK On the Remote Control Track numbers will be shown on the display Press and hold the SEEK Button to fast reverse Disc will play normally w...

Page 16: ...lay back The number of angles change in sequential order Note The number of angles is different according to the disc The function only work for discs having scenes recorded at different angles When n...

Page 17: ...s is to select the appropriate TV aspect 4 3 or 16 9 according to the connected TV set i 4 3 PS Played back in the PAN SCAN style If connected to wide screen TV the left and right edges are cut off ii...

Page 18: ...F Analog or Optical output port all has not output signal ii SPDIF RAW When the player is connected with the power amplifier by the analog or opti cal port please select this item when the playing dis...

Page 19: ...is inactive to set 4 DISPLAY SETTINGS Brightness Contrast Color and Hue can be set by touching the up or down arrow 5 Radio Region You can set USA or Europe in Radio Region by touching the arrows 6 Su...

Page 20: ...parking You must connect the VCC wire in pink color to the reverse gear switch in order to acti vate this video input mode when you switch the reverse gear of your car Please refer to the wiring diagr...

Page 21: ...e the amperage matches the specified value when replacing the fuse s If the fuse is bad check the power connection and replace the fuse with a new one If the same problem occurs this might indicate a...

Page 22: ...holder into the back of the remote control 1 2 3 Power on off BAND SRC MUTE Band Select Mode Select Key Play Pause Function Mute Sound Function Title Show All Track s Title DVD only Sub T Subtitle La...

Page 23: ...annot be loaded PROBLEM No Power Some errors occur in the LCD or nothing func tions when buttons are pressed Unable to receive sta tions Poor radio reception CAUSE SOLUTION Check wiring connections Ch...

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