Trouble Shooting; Basic Function - Boss Audio Systems BV9557 User Manual

INSTRUCTIONS

BASIC FUNCTION

1. PWR Button
Short press this button to power on, long press this button to power off.
In normal situation, press PWR button can return to the main menu.
2. MUTE Button
Press this button to shut off the sound output, re-press this button can resume the
sound output, long press this button can turn off the TFT LCD display.
3. DBAS Button
Press this button to bass on/off.
4. VOL- Button
Press this button to reduce the volume.
5. VOL+ Button
Press this button to increase the volume.
6. Eject Button
Press this button can eject the disc.
7. RESET Button
Press this button and this unit will be restored to the initial state.
8. Dual (front and rear) USB
Warning: You can only use either front or rear USB at a time. Never connect both
front and rear USB at the same time! This could cause malfunctions.
9. Remote control receiver
It is able of receiving infrared signals launched by the remote control matching the unit.
10. Dual (front and rear) AUX
Warning: You can only use either front or rear AUX at a time. Never connect both
front and rear AUX at the same time!
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TROUBLE SHOOTING

PROBLEM CAUSE
Check fuse
Cannot power on
Some factors cause MPU
wrong operation
After ignition switch
Change battery or fuse
off ,setting
information all lose
Poor performance
Weak signal
of radio station
Connot load disk There is a disk inside
Disc is scratched
Put wrong side of disc into
Cannot play disc
the unit
Lens is dirty
Cannot switch There is only one language/
language/subtitle
subtitle in disc
Other factors cause MPU
No image
wrong operation
Cannot watch
It's not allowed to watch image
image during
during driving
driving
INSTRUCTIONS
SOLUTION
Change fuse same as the old one
Press RES button on the panel by
penpoint, then, power on
Reset information and save
Move the car to another place, then research
Remove disc before inserting another one
Change new disc
Insert in the disk with sign side up
Clean lens by lens clean disc
If disc is not with multi-language/subtitle,
it cannot switch language/subtitle
Press [RES] button on the panel by
penpoint, then, power on
Park the car in a safe place, put the car stall
in " P " postion, pull up the hand brake,
parking brake wire must be grounded
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