Roadmaster VRFM9BT Users Manual

MANUAL

Thanks for purchasing our product（ＢＬＵＥＴＯＯＴＨ　ＣＡＲ　ＫＩＴ）. Please read this
manual carefully before starting to use this device. When you use this
device, you are supposed to learn well of this product.

1. There have a Blue-tooth module.
The Bluetooth chip communicates with the decoder chip through UR interface,
the current status of the Bluetooth will be displayed on the LCD screen
by the decoder chip . Afterwards ,the audio frequency of the Bluetooth
SPK_L-、SPK_L+、SPK_R-、SPK_R+ change into two-way audio signal
transmissions for the system board to work .In a word,you can link this
equipment with SD or MMC see some contents what you want to watch in you
car.

This is very convenient to you life because of he is very delicate

and fragile.

2. The TXDM12864CF-29S4 is a 128x64 dot-matrix LCD module. It has an
FSTN panel composed of 128 segments and 64 commons. The LCM can be easily
accessed by micro controller via serial interface.The input signal rise
and fall time (tr, tf) are specified at 15 ns or less. All timing is
specified using 20% and 80% of VDD as the standard.

3. Usually, the files used by the device are saved in the appointed folders
to ensure the access for embedded program of the device. You may save files
into other folders or under root directory of the SD card. If the files
are saved in the appointed folders, when opening the corresponding
application, these files can be seen directly; If not in the folders, then
you can not see them for the application, so that you need to click
“Search” button, the system will search in all files in un-appointed
folders until find it and display the result of search. For the sake of
convenience, it is strongly suggested to save the files into the
corresponding folders.

4. Instruction Setup:
non-selective potentials V2 and V3 and V1 and V4 are output through the
LCD driving output pins SEG and COM.When electric charge is remaining in
the smoothing capacitor connecting between the LCD driving voltageoutput
pin(V1~V5) and the VDD pin,the picture on the display may become totally
dark instantaneously ehwn the power is turned on.To avoid occurrence of
such a failure,we recommend the fllowing flow when turning on the power.

PRECAUTIONS FOR USING LCD MODULES:

1. The display panel is made of glass. Do not subject it to a mechanical
shock or impact by dropping it.

With this IC,when the power is applied,LCD driving

2. If the display panel is damaged and the liquid crystal substance leaks
out, be sure not to get any in your mouth. If the substance contacts your
skin or clothes, wash it off using soap and water.

3.Do not apply excessive force to the display surface or the adjoining
areas since this may cause the color tone to vary.

4. The polarizer covering the display surface of the LCD module is soft
and easily scratched. Handle this polarizer carefully.

5. If the display surface becomes contaminated,breathe on the surface and
gently wipe it with a soft dry cloth.

6. Extra care to minimize corrosion of the electrode. Water droplets,
moisture condensation or a current flow in a high-humidity environment
accelerates corrosion of the electrode.

7. Install the LCD Module by using the mounting holes. When mounting the
LCD Module, make sure it is free of twisting, warping and distortion. In
particular, do not forcibly pull or bend the I/O cable or the backlight
cable.Do not attempt to disassemble or process the LCD Module.

8. NC terminal should be open. Do not connect anything.If the logic circuit
power is off, do not apply the input signals.

9. To prevent destruction of the elements by static electricity, be
careful to maintain an optimum work environment.

Warnings:

1 .Be sure to ground the body when handling he LCD Module.

2. Tools required for assembling, such as soldering irons, must be
properly grounded.

3. To reduce the amount of static electricity generated, do not conduct
assembling and other work under dry conditions.

4. The LCD Module is coated with a film to protect the display surface.
Exercise care when peeling off this protective film since static
electricity may be generated.

5. When storing The LCD Module, avoid exposure to direct sunlight of