kehan DASH CAM User manual

KEHAN
DASH CAM
User Manual
E-Song Digital Limited
www.kehan.com

Thank you for your purchase with KEHAN dash cam. KEHAN
dash cam adopts unique ultra-portable design, and are
equipped with multiple function like high-quality digital audio
and video making &photography, high-speed USB data
transmission, USB charging. KEHAN will provide a more
convenient, colorful and safe daily life to you.
Please read the user manual carefully and make sure you
have understood it totally before you use KEHAN dash cam.
The user manual will paraphrase how to use KEHAN dash c
am in details, including how to operate the dash cam, how to
install the dash cam, what are the precautions, and technical
specifications. Please keep the user manual in case of you
need to refer to it in the future.
If the accessories can not match the real product, please take
practicality as standard.
English

English
1.Product Features ------------------------------1
2.Product Structure ------------------------------2
3.Installation Instruction ---------------------------4
4.Basic Operation -------------------------------7
4.1 TF Insert and Pull out -------------------------- 7
4.2 Charge for battery --------------------------- -7
4.3 Turn on------------------------------------7
4.4 Turn off------------------------------------7
4.5 Mode Switch---------------------------------7
4.6 Icons -------------------------------------7
4.7 Recording ----------------------------------8
4.8 Photo Taking --------------------------------8
4.9 Playback Mode -------------------------------8
4.10 Connect to Computer --------------------------9
4.11 Connect to TV -------------------------------9
5.Menu Setting---------------------------------10
6.LDWS Calibration(Optional Function) ---------------12
7.ADAS Function（Optional Function） ---------------13
8.GPS Function(Optional function) ------------------15
8.1 GPS receiving ------------------------------15
8.2 GPS player installation -------------------------15
9.Technical Specifications ------------------------16
10.Operation Precautions ------------------------18
Appendix: Troubleshooting -----------------------18
The model matching function table ----------------- 20
Contents

1
English
1.Product Features
Light and slim, easy to install, not block the sight, and not influence the
total appearance.
High-definition TFT digital display screen.
Support 1080P HD resolution video so that the video can
broadcast smoothly.
Gapless video and ensure any data will not be missed.
Camera adopt 4M pixels, noise-low bearing class wide-angle lens.
Equipped with dewarping adjustment function so that the screen will be
not out of shape even on the condition of wide screen.
With G-sensor accelerometer function so that you can set up induction
sensitivity refers to different levels. On the turn-on mode, the
emergency video function will be triggered automatically when
the collision has been detected.
With setting up the car number into the device so that you can create
your own personalized features
Super capacity TF card and it can support auto loop recording.
The recording time of the file can be set, and when the memory card is
almost full, the system will cover the earlier videos to loop recoding.
The video can be played back via dash cam, PC, and TV.
Support the one-click emergency recording function, and also has the
one-click turn off recording voice button.
When you connect the dash cam to the car charger and start the car,
you do not have to press the power button, then the dash cam will be
turned on automatically.

2
Lens USB Port Power button
Reset button Charger indicator Power indicator
MODE button REC button MENU button
Up button Camera button Down button
Microphone hole HDMI Port AV OUT Port
TF card slot Bracket charge port
1 2 3
45 6
78 9
10 11 12
13 14 15
16 17
The picture is only for reference, please make the object as the standard,
English
2.Product structure and the definition of the button

Button definition
Button icon Button name
Power
button
1. Short click for turning on the device
2. Click 3 seconds for turning off the device
1. Short click to switch modes (recording mode, camera mode
and play back mode).
2. When entering the menu mode, please short click to
exit menu.
1. Under the record mode, please short press to
start/stop recording.
1.Under the camera mode, short click for capturing pictures.
2.Under the recording mode, short click for emergency recording.
3.Entering into the menu mode, short click for confirming the
chosen submenu function.
4.Under the play back mode, short click for play/pause.
Camera
button
Record
button
MODE
button
Function paraphrase
English
3
MENU
button
UP button
DOWN
button
1. Short click for entering MENU mode.
2. After entering into the menu mode, short click for changing
the menu page.
3. On the “play back” mode, short click for each file can
enter into scratchable latex mode.
1. When entering into the menu mode, short click for going up.
2. Under the “play back” mode, short click for going to the
previous file.
3.During the recording, short click to turn on/off audio.
1. When entering into the menu, short click for going down.
2. Under the “play back” mode, short click for going to
the next file.

Step 1: Insert the TF card (Original Class 10 version and above, support
max to 128G), and fix the DVR on the bracket so that the suction cup lock
of the bracket is in the stage of opening.
Step 1
4
English
Serial number Name
1 DVR
2 Bracket
3 Car charger
4 USB cable
5 User manual
6 Warranty card
Accessories
3.Installation instruction
Quantity
1
1
1
1
1
1

Step 2
Step 3
Step 2: Clean the front windshield, take off the protective film from the
bottom of suction cup that connected to the DVR, align the DVR with the
windshield, then press the lock to make sure the suctioncup is locked on
the front windshield tightly.
Step 3: Switch the rotating button, and adjust each angle of the DVR to
the best shooting position. Then tighten the switch button of the bracket.
5
English
screw caps
Removal handle
Protective film of the
suction cup
Front windshield
Screw caps

Step4
Step 4: Connect the USB cable of the car charger to the USB port of the
DVR, and insert the car charger into the cigarette lighter, then the
installation is finished.
Cautions:
a. During the installation, the surface that the suction cup attaches
should be smooth.
b. When adjusting the angle, please stop doing it when the bracket can
not be switched. Be careful that do not use too much power to
damage the bracket.
c. Remove the bracket, please hold the middle part of the bracket by left
hand, and open the lock on the bottom of the suction cup by right
hand. Then hold the soft rubber suction cups to remove the handle.
Remember that do not use too much power because it is easy to
damage bracket.
6
English
Cigarette lighter

4.1 TF Insert and Pull out
4.2 Charge for battery
4.3 Turn on
4.4 Turn off
4.5 Mode Switch
4.6 Icons
Insert TF card (At least 8GB, above class 10 into card slot
according indicated direction.
Press TF card slightly, pull out it when TF card pop-up.
Note: Built-in battery is mainly used to save the last file when
disconnecting the power or short time operation. It's strongly
suggested to connect car charger to use the device.
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English
Charge via car charger: Connect device USB port via car charger
to charge.(It could be charged even though in power off mode.)
Charge via USB: Connect device to computer via USB data cable
to charge
Connect external power, the device will automatically turn on.
When turn off, short press to turn on
4.Basic Operation
HDR
1920x1080
000:00:00
When turn on, Press for 3seconds to turn off.
Device will automatically turn off when ACC close.
Icon of recording mode
Icon of playback mode
Icon of recording
Icon of photo-take
Icon of resolution
Icon of recorded time
When turn on, device will automatically enter recording mode. If under
the recording mode, stop recording first, and short press to switch
recording/photo-take/playback in the order.

Note: Emergency loop recording files will not be covered. You
can manually delete or format.
8
English
4.7 Recording
After entering recording mode when power on, this device will
automatically recording.
Short press off/on recording.
When G-sensor is on, vehicle make a sudden braking or collision, the
device will automatically start emergency recording; Press to trigger
emergency recording in recording mode or no recording mode.
4.8 Photo Taking
4.9 Playback Mode
Press successively to switch photo taking mode.
Press successively to switch playback mode.
Short press , you will hear “click” sound, it indicates photo taken.
3M
Icon of emergency recording
Icon of close recording voice
Icon of battery capacity
Icon of open recording voice
Icon of open motion detection
Icon of TF card
Icon of photo pixels
Icon of cloudy in white balance
Icon of common folder
Icon of playback pause
Icon of fluorescent in white
balance
Icon of playback play
Icon of sunny in white balance
Icon of tungsten in white balance
Icon of GPS signal（The
more green cells, the stronger
GPS signal）

Tips: It is highly recommend use Media player launched by
windows, QUICKTIME.
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English
4.11 Connect to TV
Connect device including TF card with Computer via USB cable, then
power on, this device will enter USB mode. At this moment it will display
a removable disk in the computer. Click the document with the name of
“DCIM” to look up all the files.
Setting high definition TV to HDMI mode, connect the device to TV
HDMI port via HDMI cable, You can take photos, browse and play
photos and videos on TV.
Setting TV to AV mode, connect the device with TV AV port via AV
cable. You can take photos, browse and play photos and videos on TV.
In recording or photo taking mode, short press to entering
recording menu or photo taking menu, short press , to choose，
short press to confirm. In sub menu interface, short press or
back to main menu; In main menu interface, short press back
to Preview mode, short press to switch Recording menu(Photo
taking menu)/video quality menu/ system menu in the order.
Press to enter into Playback document, press / to switch the
files, press to watch the files.
They are photo files if the single picture don’t display play progress bar.
The files with icon is the emergency recording video.ss bar.
Short press in playback mode to enter delete menu, short press
to delete single file or delete all files.
They are audio and video files if the single picture display play progress
bar，short press to play or pause.
4.10 Connect to Computer

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English
5.Menu Setting
Video format
HDR 1920*1080 30P （default）
2560*1080 30P
2304*1296 30P
1920*1080 60P
1920*1080 45P
1920*1080 30P
1280*720 60P
1280*720 30P
（depends on different models）
Set video resolution of the
camera
Recording
Menu
Quality Super Fine(Default)/
Fine/Normal Set video quality
Watermark Date/Time/Driver ID/Off
(All will be opened in default) Set video watermark
G-sensor Off/High(default)/
medium/Low
Set the sensitivity of emergency
recording triggered by
the sensor.
Loop recording 1 min/2 min(default)/5 min/Off Setting the segmented time
of loop recording.
Motion detection Off(default)/On
LDWS calibration
（Optional）
The DVR without GPS
should be calibrated
by hand
ADAS setting
（optional；if the
resolution is
2560*1080 30P,
the ADA S does
not work.）
1. LDWS（Lane departure
warning system）: On/off
（default）；
2.FCWS(Front car warning
system) : On/off（default）；
3.FCMD(Front car moving
detection): On/off（default）；
4. LLW（Low light warning
system）: On/off（default）；
Setting to open driving
assistance function (GPS
bracket is needed)
Wide Dynamic
setting(if the
resolution is
HDR 1920*1080
30P, the function
does not work)
Off/On (default)
Lane drift calibration
DVR can identify dynamic objects
and record automatically when the
setting is on

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English
Quality Super Fine(Default)/Fine/
Normal Set photo quality
Language
TV System
Driver ID Setting
Time/Date
Card Capacity
Off/Date time(default) On or off photo time
watermark.
On or off photo time
watermark.
Light Frequency
White Balance
Metering mode
(if the resolution
is HDR 1920*
1080 30P, the
function does
not work.)
System
Menu
Video
quality
menu
Photo
taking
menu
watermark
AE bias(if the
resolution is
HDR 1920*1080
30P, the function
does not work)
50HZ(default)/60HZ
Auto (default) / Sunny /
Cloudy / Fluorescent /
Incandescent
Center (default)/Spot
-2~+2 (default is 0)
English(default)/ Simplified
Chinese/Traditional Chinese/
Russian/French/Spanish/
Italian/Portuguese/Japanese/
Korean
Year/Month/Date/Hour/
Minute
Total/Used/Reserved
NTSC(default)/PAL
Driver ID
Display Card Capacity
Set TV System
Set car license plate number,
which could be saved as video
watermark
Set system time
Set EV
Set language
Set light frequency
Set White Balance
Center: the standard is the
Center area of the photo is
not under exposure. Spot:
the standard is the center
point of the photo is not under
exposure.

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English
There are two kinds of LDWS calibration: the DVR with GPS can
do the calibration automatically (GPS is positioned successfully,
and car speed reaches over 60km/h); the other is the DVR without
GPS need to be calibrated manually.)
Entering LDWS Calibration menu, you will find red and purple
baselines. Let red baseline aligned with the car head overlapping
sections and be vertical to traffic lane lines, short press / to
Manual calibration method is as follows：
Format
Restore Default
setting
Auto Power
Off
GMT-12~GMT+12
(Default is GMT0)
Yes/No Format all files in memory card
Set all menu data to default.
When you set auto power off,
reach to the set auto-off time
without operating, the device
will auto off automatically.
Yes/No
Off/1min/3mins(default)/
5mins
GMT-12~GMT+12, after
setting the time zone. Once
GPS positioned, the system
time will be corrected to the
time of current time zone
automatically.
Auto turn off
screen
Delay Power Off
System
Menu
Audio
Version
Information
6.LDWS Calibration (Optional Function)
Time Zone Setting
GPS logger
Version only）
Off/1min(default)/
3mins/5mins
Off/15sec(default)/
30sec/1min
On(default)/off
Current Software Version No.
Master + hardware +
software version
When it reaches the set screen
auto-off time without operating,
the device will turn off screen
automatically. (It is available
even recording)
After no power supply for the
device, the device will power off
automatically when it reaches
the duration as set.
If choose off, this device will have
no power on/off sound and button
sound.

13
English
adjust purple baseline, Let the purple line reach the edge of the
road in your vision and be vertical to traffic lane lines. Then short
press to complete the calibration.
After complete, press / to exit sub menu.
Remark: press to switch red/purple baselines. After complete one
time calibration,
It will not need to calibration again if the device doesn’t move.
Baselines’ positions are as below:
7.ADAS Function（Optional Function）

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English
(1)LDWS(Lane departure warning system): on/off. Tick is open
LDWS, Not Tick is off.
After the function is on, if the driving car has a lane departure, the
device will make warning sounds
to warn drivers to drive safely, the working conditions are as below
(2)FCWS(Front car warning system): on/off. After the function is on,
if the driving car is too close to the front car, the device will make
warnings to warn drivers keep safe distance with front car.
When low speed, the function sensitivity will reduce, It is
recommended to use the function when high speed more than 60km/h.
If too low speed or no GPS signal, the function is not available.
When your car is static, the function is available.
If no GPS signal, the function is not available.
No GPS logger, LDWS will work normal.
Whether the lane line is clear that there is a great impact on detection
accuracy.If without lane line or unclear lane line, LDWS is not available.
Tips:
Tips:
(3)FCMD(Front car moving detection): on/off. After the function is on,
if the front car starts moving, the device will make warning voice to warn
driver to drive the car
Tips:
This device will make first warning under insufficient light conditions,
after 5 minutes later, this device will make a second warning.
Note: Both Installation position, LDWS calibration and insufficient light conditions will
affect ADAS system judgment.
The above instructions are for reference, please subject to true use environment.
(4)LLWS(Low light warning system):on/off. After the function is on,
if the driving light is insufficient, the device will make warning voice to
remind driver to open lamplights.
Tips:

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English
8.1 Connect to Computer
8.2 GPS player installation
When the device is on, GPS fix position will auto start, and GPS signal
status icon will display in the upper right corner of the screen. When icon
color is white color, it means that GPS is positioning;
When icon color become green, It means that GPS have been positioned
successfully. The more green cells, the stronger GPS signal.
GPS information will be imported to video files when recording
automatically, You can play videos and display driving route with
GPS player.
Insert a TF card into the device, GPS player setup file will generate
automatically in the TF card:
* GeoVideo_Setup.exe is windows version player, double click it to
install and use.
* GeoVideo_Setup.dmg is MAC OS Version player, run it directly.
8.GPS Function(Optional function)

English
Master Chip Ambarella High-end A7 Chip
LCD screen size 2.7inch LTPS (16:9)
Lens 400MP A+ class high resolution, super wide angle lens
Decoding Format H.264
Video format MOV
Photo resolution 4M
HDR1920*1080 30P 2560*1080 30P 2304*1296 30P
Video resolution 1920*1080 60P 1920*1080 30P 1280*720 60P 1920*1080 45P
1280*720 60P (depends on different configuration)
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GeoVideo Setup needs to be supported by Quicktime player,
please make sure there is a Quicktime in your PC, if not, please
download one to Apple official website. As shown in the
picture below:
Tips:
9.Technical Specifications
Photo format JPEG
Date Port USB2.0