FP520 Service Manual
Page 3 of 64
Chapter 1 Overview
1. 1 Introduction
This manual applies to the service and maintenance of FP520 FM portable radios, and is intended for use by
engineers and professional technicians that have been trained by Kirisun. It contains all the required service
information for the equipment. Kirisun reserves the right to modify the product structure and specifications
without notice in order to enhance product performance and quality. You can also contact your local dealer or us
to get the latest service manual.
Please read this manual before repairing the product
.
1.2 Safety Precautions
Electromagnetic Energy Exposure
Radios will generate and radiate electromagnetic energy during transmit mode. Kirisun radio is designed to
comply with national and international standards for human exposure to radio frequency electromagnetic
energy.
To derive optimal performance, and to guarantee that the electromagnetic radiation does no harm to you, always
keep the radio in a vertical position to the ground and make sure that the microphone is 2-5cms from your mouth
while using.
Electromagnetic Interference
In order to avoid electromagnetic interference, please turn off the radio in the place where there is a warning, e.g.
hospital, health care center, airport and etc.
Explosive Atmosphere
It’s prohibited to use radios in the following places:
Areas with a potentially explosive atmosphere, e.g. the lower deck of the ship, the storage and transportation
equipment for fuel and chemical, places where there are chemical substances, particles, dust or metal dust.
Places near blasting sites or area with electrical blasting cap.
It is also prohibited to change or charge the battery in any area with a potentially explosive atmosphere.
Antenna
If the antenna is damaged, do not use the radio. Damaged antenna may cause light burning to skin.
Replacement Parts
All the components should be supplied by Kirisun.
Please use the components with the corresponding model number for repair. Do not take the risk of using any
improper components which are not required
in Kirisun’s service manual.
Summary of Contents for FP520
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Page 44: ...FP520 Service Manual Page 43 of 64 Figure 1 FP520 01 Mainboard Schematic Diagram 136 174MHz ...
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Page 54: ...FP520 Service Manual Page 53 of 64 Figure 4 FP520 02 Mainboard Schematic Diagram 400 470MHz ...
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Page 64: ...FP520 Service Manual Page 63 of 64 Figure 7 KBC 51 7 4V Electrical Schematic Diagram ...
