DP480 Service Manual
1
1. Overview
1.1.Range of Application
This manual is intended for the maintenance of DP480 frequency-modulated handheld two-way radio, and
can be used only by the engineers and professional technicians trained by Kirisun. The parameters in this
manual are subject to change because of technology improvement. For the latest information, please
contact Kirisun or your local dealer.
Please carefully read this manual before repairing the radio.
1.2.Safety Precaution
Electromagnetic Radiation
A two-way radio generates and radiates electromagnetic energy. Kirisun two-way radios strictly conform to
Chinese and international standards of electromagnetic radiation. To ensure ideal communication and
human safety, please keep the device vertical to the ground and keep the microphone 2 ~ 5cm away from
the mouth while using the radio.
Electromagnetic Interference
To avoid electromagnetic interference, turn off the radio in a place where you are so instructed, for example,
a hospital, a health center and an airport.
Explosive Gases
You’d better shut down the radio when you are in an area with explosive gas (for example, the lower deck
of a hull, a container or transport facility of fuel oil or chemicals) or with chemical or particles, dust or metallic
dusts in the air, or near a blast area or an electric blasting detonator. Replacing or recharging the battery in
potentially explosive atmospheres is prohibited.
Damaged Antenna
You are suggested not to use the radio if the antenna is damaged. A damaged antenna may cause mild
burns when contacted with human skin.
Battery Life
To prolong the service life of the battery, avoid fully discharging the battery frequently. Please charge and
discharge the battery repeatedly if it will be not used for a long time. For satisfactory performance and safety,
you are suggested to replace the battery every two years.
Part Replacement
Pay attention to the model while replacing a part. Do not use a component not meeting the requirements of
Kirisun.
1.3.Maintenance Service
Warranty service is provided to the radio and the accessories, except in any of the following situations.
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