Chapter 1 Introduction; Chapter 2 Radio Overview And Function Keys - Kirisun PT4200 Service Manual

Chapter 1 Introduction

1.1 Introduction
This manual applies to the service and maintenance of PT4200
series of FM mobile radios, and is designed for the engineers and
professional technicians that have been trained by Kirisun. In this
manual you can find all the information of product service. Kirisun
reserves the rights to modify the product structure and specification
without notice in order to enhance product performance and quality.
You can also log on our website www.kirisun.com to download the
latest service manual or contact your local dealer or us.
Read this manual before repairing the product.
1.2 Service Precautions
Safety
Avoid skin contacting with the antenna connector and PCB.
Do not reverse the power polarities.
Do not turn on the power before the antenna and load
connection is completed.
Do not use the radio if the antenna has been damaged.
Contacting the damaged antenna will cause lightly burning on the
skin.
Repairing service can only conducted by professional
technicians.
Electromagnetism Interference
It's prohibited to use or repair the radio in the following
places:
Hospital, health center, air port
Any area with a potentially explosive atmosphere (where the air
contains gas, dust and smog, etc.), such as the storage or
transportation facilities.
Any area of dynamite or exploder.
Component Replacement
All the components used in repair service should be supplied by
Kirisun.
Other components of the same models available on the market
are not surely able to use in this product and we do not guarantee
the quality of the product using such components.
Please fill in a component application forms if you want to apply
for any components from Kirisun.
The following is one sample form that might be used to apply
for any components from Kirisun.
Component Application
Model Component No . Model/
Specifications
PT4200-2 FET Q11
PT4200-2 Triode Q5
PT4200-2 Belt Clip
1.3 Service
All the Kirisun products are subject to the service warranty.
The main unit of the radio is guaranteed for service of 18 months. In
one of the following situations, charge free service will not available.
No valid service warranty or original invoice.
Malfunction caused by disassembling, repairing or
1
Material
Serial
No .
RD07MVS1 105-RD07MV-001
2SC5108 Y 104-SC5108-001
KBJ-05
reconstructing
Wearing and tearing or any man-made sabotage such
as mechanical damage, burning or water leaking.
Product serial number has been damaged or the product
trademark is difficult to identify.
After the warranty expires, lifetime service is still
available. And we also provide service components to
service stations.

Chapter 2 Radio Overview and Function Keys

2.1 Radio Overview
LED Indicator
Lights red while transmitting; lights green while receiving a
signal.
Flashes red while in low battery power.
Channel Selector
Rotate to select channel 1-16.
Power/Volume Switch
Turn clockwise to switch on the radio.
Turn counterclockwise till a click is heard to switch off the radio.
Rotate it to adjust the volume after turning on the radio.
PTT (Push-to-talk)
To make a call, press and hold the PTT button, then speak into
the microphone in normal voice.
Release the PTT button to receive a call.
Monitor Button
Press to disable the SQUELCH, and release to enable the
SQUELCH again.
Channel Annunciation Button
Quantity
Press it in standby state, and the channel number will be
1
annunciated. If press and hold this button, and at the same time
1 switch on the radio again, the type of voice annunciation of channel
1 number will be changed.
Emergency Button
Press and hold this button for over 2 seconds to activate
warning tone. Press it again to exit the emergency alert state.
Note: When warning tone sounds, all of the buttons are
disabled.
Microphone/Speaker Jacks
For connecting external Microphone/Speaker.
PT4200 SERVICE MANUAL
the radio by the users without permission.