Kirisun PT7200-01, Service Manual

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Chapter 1 Introduction
1.1 Introduction
This manual applies to the service and maintenance of PT7200
series of FM portable 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.
If signal input at antenna connector is bigger than
20dBm(100mW), it may cause damage to the radio.
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 slightly burning on the
skin.
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 of fuel or chemicals.
Any area of dynamite or exploder.
It's recommended to avoid using or repairing the radio in the
following places:
It's recommended to avoid using the radio in a car that is
moving. The radio wave might interfere the auto engine and cause it
to stop working.
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
1.3 Service
All the Kirisun products are subject to the service warranty.
The main unit of the radio is guaranteed for free service of 18
months. Accessories (such as battery pack, power adapter, antenna
or charger) are guaranteed for free service of 6 months. Earphones
are wearing parts and out of warranty.
In one of the following situations, charge-free service will not be
available.
No valid service warranty or original invoice.
Malfunction caused by disassembling, repairing or
reconstructing the radio by the users without permission.
Wearing and tearing or any man-made damage 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 and service
staff.
Chapter 2 Radio Overview and Function Keys
2.1 Radio Overview
Figure2-1
LED Indicator
Lights red while transmitting signals; lights green while receiving
signals.
Flashes red while in low battery power during transmitting.
Channel Selector
Rotate it to select channel 1-16.
Power/Volume Switch
Turn clockwise till a click is heard 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.
Side key 1
Programmable function button: Press it to activate the
programed auxiliary function.
Side key 2
Programmable function button: Press it to activate the
programed auxiliary function.
Top Button
Programmable function button: Press it to activate the
programed auxiliary function.
Microphone/Speaker Jacks
For connecting the optional Microphone/Speaker.
Compo
Radio M o del/
Mat e r i a l Serial Qua
N o .
No.
pecifications nent S ntity
Model
PT7200-01 FET Q68 RD07MVS1 105-RD07MV-001 1
PT7200-01 Triode Q57 2SC5108(Y) 104-SC5108-001 1
PT7200 SERVICE MANUAL
1