Wintecronics L500HAA Remote Control Transceiver User Manual Manual
Wintecronics Ltd Remote Control Transceiver Manual
User Manual

L-500HAA/ 433.92 USERโS MANUAL
1. To confirm setting of current car security mode, press
โข
(Red button ) +ล
To get feedback or check of carโs current security mode , press โข(Red button ) + ล for 1 sec and
release.
2. To set โPAGER AUTO โ on โ, press โข (Red button) +โข
To set โPAGER ALL -offโ ; press โข(Red button)+โข for 1 sec and release. Pager rings if
setting of โPAGER ALL -offโ is done. A short beep sounds if โPAGER AUTO- on โ setting
is done.
Once the car security is armed , receiver automatically sets โPAGER- onโ mode. If the car
security is disarmed, receiver will get into โPAGER-offโ mode.
Normally โ PAGER-AUTO -on โ settings is recommended for consumers.
รSet the โPAGER-off โ mode if there is someone in the car in case that paging might be needed .
รFactory setting in all receivers is โPAGER-offโใ
3. To set receiver โ MUTEโ mode; press โข(Red button)+ลฝ 1 sec and release
MUTE appears if โ MUTE โ mode is set on. Under this mode, pager will vibrate without beeps
for any emergency warning. Whether the receiver is set โ ON โ or โ OFF โ the receiver will
beep if your car sends any emergency alert call.
4 . โข(Red button) and its mode.
To get the LED backlight , press โข(Red button) 1 sec and release. LED turns off after 3 secs.
When the receiverโs battery power is low, (BAT LOW) warning will appear. Pressing of this
button is followed by beeps sound.
5 .BAT/LOW
Change the battery๏ผif the ( BAT/LOW) icon appears. Change the battery when the beeps
become low even the ( BAT LOW) does not show up.
6. How to change battery:
Push LOCK, slide open the battery cover. Change battery making sure of polarity in proper
position. The receiver beeps 1 sec if the receiver gets into operating mode. If fails, take out the
battery and reinstall it after 5 sec.
รAfter changing of battery, pressโข(Red button)+ล to make sure the receiver setting is same as
the car current security status.
รEach time the battery is changed, make sure the battery cover is properly closed and LOCK in
position.
ร Use of alkaline battery is recommended.
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There are total 4 buttons which if pressed will produce the digital control signals and modulate the carrier signal. The
carrier signal is generated by a crystal oscillator/ amplifier circuit composed of a 434 Mh crystal and a npn transmitter.
The modulated output of the RF amplifier stage is coupled to the coil.
All the tuning and verification are done by manufacturer during the production process and no adjustment is allowed
by any consumer. No external ground is needed in such device.

The Wintercronics Co., Ltd. Model: L-500HAA (referred to as the EUT in this report) is a
Transceiver of car alarm security system. It offers wireless remote control, ideal for use in
vehicle security system to activate the function of center door lock control system and car
searching except the alarm system.
A major technical descriptions of EUT is described as following:
A). Fundamental Frequency: 433.92 MHz
B). Modulation : Pulse Modulation
C). Antenna Designation: Non-User Replaceable (Fixed)
D). Power Supply: DC 1.5V, Battery Operated.
E). Receiver type : Superheterodyne
Fundamental Frequency 433.92MHz
Power Source 1.5V Battery Operated
Transmitting Time Periodic โค 5 seconds
Associated Receiver FCC DOC
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
condition.(1).this device may not cause harmful interference. (2).this device must accept any
interference received, including interference that may cause undesired operation
Warning:
Note: This equipment has been tested and found to comply with the limits for digital device,
pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, used and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference in to radiate communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
l Reorient or relocate the receiving antenna
l Increase the separation between the equipment and receiver.
l Connect the equipment into an outlet on a circuit different form that to which the receiver in
connected.
l Consult the dealer or an experienced radio/TV technician for help.
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference: and
(2) This device must accept any interference received: including interference that may cause
undesired operation.
THE MANUFACTURER IS NOT RESPONSIBKE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY
UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT.SUCH ODIFICATIONS COULD VOID THE
USERโS AUTHORITY TO OPERATE THE EQUIPMENT.
Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized
modification to this equipment. Such modification could void the userโs authority to operate the
equipment.