Product Datasheet/Brochure

22
Diagnostics & Troubleshooting
Problem Cause Solution
No power
(Unit does not
turn on)
1. Incorrect wiring
2. Fuse is blown
3. Wiring harness is
not connected
1. Re-check wiring
2. Replace fuse
3. Re-check wiring
harness connection
No sound
(Only with built-in
power used)
1. Volume is too low
2. Speaker wire
connection loose or
wired incorrectly
1. Increase volume
2. Double check
connection and re-
attach
No sound
(Only on external
ampliers)
1. Ampliers not
connected to power
2. Ampliers not
turning on
1. Check amplier
power/ground
connections
2. Connect blue
remote turn on wire
No AM/FM
reception
1. Antenna cable is
not connected
2. The signals are too
weak
1. Insert the antenna
cable securely
2. Select a station
manually
AUX Input or RCA
output distortion
1. Volume may be
up too much on
external device
1. Lower volume on
external device
until distortion goes
away
External ampliers
have low signal
input. Gain too
high (hiss)
1. Zone control is
turned down too far
1. Increase zone
control level to
provide more signal
level to ampliers
Bluetooth can't/
won't connect
1. Mobile device has
BT switched off
2. Mobile device is
not discoverable
1. Enable the
Bluetooth function
2. Make the device
discoverable
USB thumb drive
not reading
1. Music le is not
MP3, WAV or WMA
format
1. Convert music le
format into MP3,
WAV or WMA
format
Camera does not
display in reverse,
only in camera
source menu
1. Purple/white
reverse trigger wire
not powered
1. Power the purple/
white wire on the
back of the unit
with +12v trigger
If you have problem or question that was not mentioned here,
please visit MBQuart.com and go to the TEQ Support section or
the Frequently Asked Questions.