VGC UV-E5 User manual

Service Manual
VERO GLOBAL COMMUNICATION CO.,LTD
MODEL:UV-E5
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INTRODUCTION
ELECTRICAL FEATURES
FEATURE
LCD DISPLAY
KEY FUNCTION
CIRCUIT DESCRIPTION
BLOCK DIAGRAM
PART LIST
CIRCUIT DIAGRAM
PARTS LAYOUT
2
3
4
5
6
8
14
15
16
20
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Scope of this manual
Safety:
This manual is intended for use by experienced technicians familiar with similar
types of commercial grade communications equipment. It contains all required
service information the equipment and is current as of the publication date. This
manual almost correct and complete, if there is something oversight, company
keeps the right of explanation. And we also keep the right of change the design
and the specification.
Do not transmit, if you don’t check all transmitting pins or one of the opening
pins hasn’t connect to the correspond port.
Switch off power when you are on flammability gas condition.
Do not take it apart, or have it repaired by a nonprofessional.
Turn off the radio before of detonator and blasting area.
In order to avoid the problem arising by Electromagnetic interference and/or
Electromagnetic Compatibility, please turn off the radio where there has a
mark: Turn off radio, such as hospital or other health care place and enplane.
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Personal
Introduction
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Electrical Features
1-1 STANDARD TEST CONDITIONS
Supply
●Voltage VDC
●Antenna Impedance 50 Ohm
●Audio Frequency 1 KHz
●Main Signal Input ‐47 dBm
●Deviation 3Khz /N: 1.5KHz
●Reference Audio Output Power 1 5.Vrms at external Speaker
●Audio Output Impedance 8ohms non,‐inductive
●Te s t Te m p e r a t u r e +25℃
●Channel Space N-Band : 12 5KHz./ W‐Band : 25KHz
1-2 GENERAL SPECIFICATIONS
●Frequencies VHF:136 MHz ～174 MHz
UHF:400 MHz ～470 MHz
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●+60
●Current Drain 30mA on Standby / 70mA on Receive / 1200mA on Transmit
●Transmitter Receiver/Switching Electrical
1-3 RECEIVER SPECIFICATIONS
●Sensitivity (12dBSINAD)W:‐122dBm / N : ‐120dBm
●Audio Output 0 5.W at 8 Ω less than 5%distortion
●Spurious & Image Rejection 60 dB
●Adjacent Channel Rejection W : 65 dB / N : 65 dB
●Inter Modulation Distortion 65 dB
●Hum & Noise W:45dB / N : 40 dB
1-4 TRANSMITTER SPECIFICATIONS
●Output Power(Conducted)5W
●Peak Deviation W:5KHz/N:?.5KHz
●Frequency Error 0 0003.%at ‐20 C to +60 C
●Audio Distortion 3%at 1 KHz
●Spurious & Harmonics 60 dBc
●Hum & Noise W : 52dB / N : 50dB
W:
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7.4
Temperature Range ℃
℃
-30 ～
128 Channels programmable
Number of Channel
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Feature:
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Dual Band Dual Frequency
5 Watts Output Power
128 Memory Channels
High/low Power Switchable
25khz/12.5khz Switchable
Channel Steps(2.5/5/6.25/10/12.5/25KHz)
KeyPad Operation
CTCSS / CDCSS
Programmable In Separate Channels
Come With 1800mAh Li-ion Battery
Vox Built In
Frequency Scan & CTCSS Scan
Three Differency Scan Type:TO/CO/SE
Emergency Alarm
Progrmmable By PC Software
Priority Scan Function
Switching Between Channel Mode /VFO Mode
Display Channel + Frequency Mode
Adjust Squelch Level(0-9)
Busy Channel Lockout
Keypad Lock
Low Battery Alert
Battery Saver
Time-out Timer
136-174MHz&400-470MHz
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PTT ID
Strong LED Flashlight
SOS Function
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COMBINATION KEY FUNCTION
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[DIAL]
[]Tuning knob, used to turn on/off the Radio, and adjust the Volume.
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Circuit Description
The UV-E5 contains RF IC, RF Receive Amplifier, RF Transmit Amplifier
audio power amplifier circuit, FM radio integrated IC/AF amplifier,
microprocessor and LCD display.
A. RF IC
RF IC actually is a semi-duplex FM transceiver which designed to operate
In the frequency range: 136-174MHz and 400-480MHz. The RF IC is of
advanced digital signal processing ability, integrating PLL, ADC/DAC
and all RF T/R path circut. It can transmit and receive the sighal with
few components.
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B.RF Receive Amplifier
1.Receive in the frequency range: 136-174MHz
A coming signal from the antenna is applited to an RF amplifier Q11
after passing through a transmit / receive switch circuit and LC band
pass filter. After the signal is amplified, it enters RF IC.
2. Receive in the frequency range: 400-480MHz
A coming signal from the antenna is applied to an RF amplifier Q10
after passing through a transmit / receive switch circuit and LC band
pass filter. After singal is amplified, it enters RF IC.
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