Kirisun DP990, Service Manual

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DP990/DP995service manual
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1. Overview
1.1.Range of Application
This manual is intended for the maintenance and repair of the DP99X series frequency-modulated handheld radio,
and can only be used by engineers and professional technicians who are trained by Kirisun. The parameters in this
manual may vary with technology improvement, so for updated technical information, please contact Kirisun or its
local dealers.
Please carefully read this manual before repairing the radio.
1.2.Safety Precautions
Electromagnetic Radiation
Radios generate and radiate electromagnetic energy. The security design of Kirisun radio meets national and
international standards on electromagnetic radiation. To ensure radio’s optimal performance and safe
electromagnetic radiation on human, please keep the radio vertical to the ground and 2~5 cm away from your
mouth.
Electromagnetic Interference
To avoid electromagnetic interference, please turn off the radio wherever there are clear warnings, e.g. hospitals,
health care centers, airports and other places where radios must be turned off.
Explosive and Harmful Gases
The radio should be turned off in areas where there are explosives and harmful gases, e.g. lower deck of the hull,
fuel and chemical storage facilities and area where the air contains chemicals, particles, dust or metal dust.
Please turn off the radio when close to blasting area and electric blasting detonators.
Replacing or charging batteries in potentially explosive atmosphere is prohibited.
Damaged Antenna
A broken antenna may cause mild burn when contacts with human skin. It is better not to use the radio if the
antenna is broken.
Part Replacement
Pay attention to the model when you replace a part. Do not use a part incompliant with the requirements stated in
the materials provided by the company.
1.3.Maintenance Service
Twelve-month warranty is provided to the main part of the radio, and 6-month warranty for the accessories
(including the battery, transformer, earphone, antenna and charger).
However, the warranty will be voided under any of the following circumstances.

Failure to present a valid warranty card or original invoice.

Malfunction caused by unpermitted disassembly, repair or modification.

Damage of the product due to wear, mechanical damage, burn or inlet of water.

Damaged product SN or unidentifiable brand.
Lifelong maintenance service will be provided, and parts will be provided to maintenance stations and maintenance
personnel at preferential prices after the warranty period.