User Manual

--- Automatic shutdown is generally caused by the following situations:
1.The cable were connected wrong: If the blue cable (automatic antenna power supply)
is connected as the power cord of the unit, an automatic shutdown will occur. Please
follow the correct wiring connection method to solve the problem.
2.The voltage is unstable: please find a 12V-5A power supply and re-tested to see if it
will automatically shut down or not. If it won't automatically shut down after the test,
please replace the power supply. If it will automatically shut down, it is problem with the unit.
-- The general situation of noise is caused by two reasons
1. The original speaker power is too small. When the volume of the unit is turned up,
there will be noise.
Solution: Either replace the speaker or do not turn the volume too large when listening
to songs.
2. The speaker cable is grounded.
Solution: Take the iron speaker cable. Directly connected to the speaker cable of the unit.
-- There is no memory function, there is only 2 points in memory
1. The yellow line and the red line are connected together (separate yellow to positive,
red to key control).
2. Yellow and red are reversed (you need to change their position).
-- In this case, the unit needs to be repaired.
-- Check the phone to see if you can search for the unit code
Operation steps: turn on the unit, use the phone Bluetooth search, search for
“www.Hieha.net” then click the connection, after connecting, you can answer the phone
or Bluetooth to play the song. PIN Code: 0000.
2> Automatic shut-down
3> Having noise
4>Settings cannot be saved (no memory)
5> Car audio with Bluetooth but it can't work
6> The product smoke has proved that the internal circuit has been
burned. Change the insurance FUSE can not solve the problem.
1.Adjust the sound: please use the volume “up” and “down” button to adjust.
2.Equalizer settings: In the menu page, click this button to to enter the interface to
adjust sound effect.
3.The sound cannot be adjusted: Please reset the unit or unplug the power cord and plug it in.
--- USB flash disk can not be played:
Format the USB flash disk, and the file system must be: FAT32, re-download one or two
songs and try again. If it still doesn't work, please replace the USB flash drive.
--- The map card cannot be recognized(Only for GPS models):
Insert the card into the computer to format, re-download the map or change the memory
card to download the map software.
--- The card cannot fit into the card slot:
Check if the memory card being inserted reversely or the card slot has been damaged.
--- There is no content in the map card folder(Only for GPS models): Insert the card into the
computer to view it. If there is no content, you need to download it again.
1. Connect the wrong line or less wiring. Camera connection method:
a> The first step is to find accessories (accessory: one camera + one power cord + one
video cable). b> The second step is to find the port of the wiring.
First find the reverse control line on the power line of the unit. The control line is a pink line
or brown line, connect this line to the positive pole of 12V and the screen will turn blue.
And then find the back of the unit the CAME video input interface, find the positive and
negative of the backup light.
The third step is connect: there are two sockets on the camera, the red socket is connected
to the power cable, the yellow is inserted into the video cable, the red wire of the power
cable and the wire of the video cable are screwed together on the positive pole of the
reverse lamp, and the black wire of the power cable is not used or connected, the other
end of the video cable is connected to the CAME video input interface on the back of the unit.
The red line coming out of the video line is connected to the reversing control line of the
power line.
2. The camera is broken. If the lamp that is properly wired to the camera still not lit, it must
be broken and replace it with a new one.
7> How to adjust the sound, where is the equalizer set, the sound
can not be adjusted?
8>No display image of reversing video
9>USB flash disk can not be played, the card with the map can not
be recognized, the card slot does not enter the card, the map card
folder has no content?
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