Boss 745BA, User Manual, Page: 5 / 10

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B) To select and adjust the menu mode:
Press SEL button long to turn on MENU mode, and the LCD will display BEEP
2ND/BEEP ALL/BEEP OFF, then press SEL button shortly and repeatedly to
select SEEK1/SEEK2(in RADIO mode), DSP OFF/FLAT/POP M/CLASSICS/
ROCK, SUBW ON/OFF, VOL LAST/ VOL ADJ and ESP 6 / ESP 25 in the
sequence and circulation. After selecting a desired mode, rotate the VOL knob
on the front panel or press the + or - button to select one setup item of the
desired mode.
C) BEEP 2ND/BEEP ALL/BEEP OFF:
BEEP 2ND mode: the beep is only generated when an allotted double key is
pressed long(1second).
BEEP ALL mode: the beep is generated when every key is pressed(except power
and release buttons).
BEEP OFF mode: the beep is disabled.
D) SEEK1/SEEK2:
SEEK1: press >>| or |<< button hold to seek up or down for the strong signal
station. And then stop seek when received the strong signal station.
SEEK2: press >>| or |<< button hold to seek up or down for the strong signal
station. And do not stop seek when received the strong signal station. After
release it and then received the strong signal station, the seek will stop.
E) DSP OFF/FLAT/POP M/CLASSICS/ROCK
To select a preset EQ mode or turn off it.
F) VOL LAST/ VOL ADJ
VOL LAST: During playback, turn off the power and then turn on the power again,
at the time, the volume level will be the one before turn off the power.
VOL ADJ: When it is in VOL ADJ mode, the next mode will be A-VOL after
VOL ADJ mode, then you can adjust the defaulted volume level. The
minimum value of the defaulted volume level you can set is 10.
G) ESP 6/ESP 25
To select the time of the electronic shock protection for disc playback.
When the LCD displays wrongly or some function knobs are disable, press the
REL button to flip down the front panel and then take it away from the unit chassis.
Push the RESET button with one needle analog to reset the distorted program to zero.
Press the REL button to flip down the front panel and then take it away from
the head unit. And the anti-theft LED indicator will be flash all the time till the
front panel is assembled back to the head unit.
8. To reset the unit
9. To take away the front panel
TROUBLE SHOOTING
To solve the common problem, read the trouble shooting list. If you still
can not solve the problem, consult your nearest service dealer.
Symptom
No power
Disc cannot
be loaded
Cause
The fuse is blown
Presence of CD disc inside
the player
Inserting the disc in upside
down
Compact disc is extremely
dirty or defective
Temperature inside the
car is too high
Volume is in minimum
No sound
The operation
keys do not
work
Sound skips
The antenna cable is not
connected
the signals are too weak
Insert the antenna cable firmly
select a station manually
The radio does
not work
the radio
station
automatic
selection does
not work
1.The built-in microcomputer
is not operating properly
due to noise
2.Front panel is not properly
fix into its place
1. Press the RESET button
2. Reinstall the front panel
Wiring is not properly
connected
The installation angle
is more than 30 degrees
The disc is extremely
dirty or defective
Clean the compact disc/try to
play a new one
Adjust the installation angle
to less than 30 degrees
Adjust volume to a desired level
Check wiring connection
Cool off until the ambient
temperature returns to normal
Clean the disc or try to play a
new one
Insert the compact disc with
the label facing upward
Remove the disc in the player
then put a new upward
Replace the fuse
The car ignition is not on. If the power supply is properly
connected to the car accessory
switch the ignition key to " ACC "
Solution
Disc cannot
be read