Abell A-510T User manual

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A-510T（UHF）Service Manual

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CHAPTER 1 INTRODUCTION ...................................................................................................................................... 4
1.1 SCOPE OF APPLICATION ...................................................................................................................................... 4
1.2 SECURITY ISSUES................................................................................................................................................... 4
CHAPTER 2 APPEARANCE SKETCH CHART AND INTRODUCTION OF OPERATION FUNCTION KEYS .... 5
2.1 APPEARANCE SKETCH MAP ............................................................................................................................... 5
2.2 INTRODUCTION OF PROGRAMMABLE AUXILIARY FUNCTION KEYS ........................................................ 6
CHAPTER 3 COMPOSITE MODE ................................................................................................................................ 8
3.1MODE ................................................................................................................................................................................. 8
3.2 HOW TO ENTER EACH MODE............................................................................................................................. 8
3.3 PC MODE ................................................................................................................................................................... 8
3.3.1 PREFACE.................................................................................................................................................................... 8
3.3.2 CONNECTION STEPS................................................................................................................................................... 9
CHAPTER 4 DISASSEMBLED PARTS IN MAINTENANCE PROCESS ................................................................. 10
4.1 ASSEMBLE AND DISASSEMBLE THE BELT CLIP......................................................................................... 10
4.2 ASSEMBLE AND DISASSEMBLE ANTENNA AND KNOB ..............................................................................11
4.3 DISASSEMBLE INTER-MACHINE ..................................................................................................................... 12
4.4 DISASSEMBLE PCB BOARD ............................................................................................................................... 13
4.5 EXPLORATION CHART OF PARTS.................................................................................................................... 14
CHAPTER 5 UNIT CIRCUIT INTRODUCTION ..................................................................................................... 15
5.1 DMR DIGITAL CIRCUIT SIGNAL BLOCK DIAGRAM .................................................................................. 15
5.1 CIRCUIT STRUCTURE ......................................................................................................................................... 15
5.2 RECEIVING PART.................................................................................................................................................. 16
5.3 TRANSMISSION PART.......................................................................................................................................... 16
5.4 FREQUENCY SYNTHESIZER/BASE BAND PROCESSOR............................................................................. 17
5.5 POWER..................................................................................................................................................................... 19
5.6 CONTROL SYSTEM............................................................................................................................................... 20
CHAPTER 6 FUNCTION DESCRIPTION AND PARAMETER CONFIGURATION ........................................... 22
6.1 MAIN FUNCTION................................................................................................................................................... 22
6.1.1 CHANNEL ................................................................................................................................................................ 22
6.1.2 ANALOG +DIGITAL DUAL MODE SYSTEM (SMOOTH TRANSITION)............................................................................ 22
6.1.3 VOICE ENCRYPTION................................................................................................................................................. 22
6.1.4 VOICE BROADCAST ................................................................................................................................................. 22
6.1.5 ONE-KEY CALL........................................................................................................................................................ 22
6.1.6 CALL CONFIRMATION .............................................................................................................................................. 22

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6.1.7 RICH SUPPLEMENTARY APPLICATION ....................................................................................................................... 22
6.1.8 SCAN FUNCTION ...................................................................................................................................................... 22
6.1.9 TOT TIME-LIMITED TRANSMITTING FUNCTION ........................................................................................................ 23
6.1.10 POWER-SAVING FUNCTION .................................................................................................................................. 23
6.1.11 SQUELCH LEVEL.................................................................................................................................................. 23
6.1.12 VOX FUNCTION (THIS FUNCTION IS NOT SUPPORTED PRESENTLY)....................................................................... 23
6.1.13 EMERGENCE ALARM FUNCTION........................................................................................................................... 23
6.1.14 LOW-POWER WARNING FUNCTION ....................................................................................................................... 23
6.2 PARAMETER CONFIGURATION ....................................................................................................................... 23
6.2.1 SCAN PARAMETER ................................................................................................................................................... 23
6.2.2 TOT PARAMETER .................................................................................................................................................... 25
6.2.3 LIST OF RECEIVING GROUP ...................................................................................................................................... 26
6.2.4 LIST OF RADIATE CONTACTS..................................................................................................................................... 26
6.2.5 RADIATING AND RECEIVING COLOR CODE................................................................................................................ 26
6.2.6 TIMESLOT SELECTION.............................................................................................................................................. 26
6.2.7 CHANNEL TIME SLOT CALIBRATOR .......................................................................................................................... 27
6.2.8 TDMA DIRECT MODE .............................................................................................................................................. 27
6.2.9 ENCRYPTION FUNCTION .......................................................................................................................................... 27
6.2.10 BASIC ENCRYPTION KEY...................................................................................................................................... 27
CHAPTER 7 DEBUGGING FOR WHOLE MACHINE ............................................................................................. 29
7.1 THE REQUIRED TEST EQUIPMENT................................................................................................................. 29
7.2 DEBUGGING INTRODUCTION........................................................................................................................ 30
CHAPTER 8 SPECIFICATIONS OF PERFORMANCE................................................................................................. 35
CHAPTER 9 SPECIFICATION.......................................................................................................................................... 36
APPENDIX 1 BILL OF MATERIALS (ELECTRONICS) ............................................................................................ 37
APPENDIX 2 MATERIAL LIST（STRUCTURE PART）.......................................................................................... 45
DIAGRAM 2 A-510T SCHEMATIC DIAGRAM........................................................................................................... 50
DIAGRAM 3 A-510T BLOCK DIAGRAM..................................................................................................................... 52
DIAGRAM 4 A-510T PACKAGING ............................................................................................................................... 53

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Chapter 1 Introduction
1.1 Scope of application
This manual is written for the technicians who well know communication profession and have maintenance
experience. It includes all information and existing published data required by the equipment maintenance. The
change may happen after its publication, if required, you can use repair bulletin and manual revised edition as
supplement.
Before repair the equipment, please read this manual first.
1.2 Security issues
Safe power radiation of two way radio
Two way radios can produce and emit electromagnetic energy to outside, and electromagnetic transmission safety
design of ABELL two way radio completely conforms with national and international standard. In order to ensure the
best communication effect of two way radio and the electromagnetic transmission safety for human, when you use
two way radios for communication, please keep the two way radio perpendicular to the ground, and your month away
from microphone 2.5-5 cm.
Electromagnetic interference
In order to avoid electromagnetic interference, please turn off two way radio when you are in the places where
there is clear indication to turn off the two way radio (such as hospital, airport)
Explosive environment
You'd better turn off two way radio when in explosive environment.
Please turn off two way radio when in gas station or parking there.
Please turn it off when near electric fuse.
It is strictly prohibited to replace or recharge battery in the place where there is potentially explosive air.
Damaged antenna
When antenna is damaged, you better not to use two way radios. When the damaged antenna touches human skin,
it may cause mild burn.
Parts replacement
When start to replace any parts, please note the type, don't randomly use the components which differ from the
information provided by the company.

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Maintenance service
In order to repair the equipment, we set up a completed service system, and provide the material including
schematic diagram, printed substrate as your reference.
Chapter 2 Appearance sketch chart and introduction of operation function
keys
2.1 Appearance sketch map
1
2
3
4
57
8
9
6
○1PPT switch:
Press this switch, and then call the opposite by microphone. Release the switch to listen.
○
2、○ 3、○5are the function keys K1、K2、K3 relatively:
These keys are programmable function key such as long key (key-press time should reach the time we set for
long key) and short key (normal key), which can be set for different functions. Press it to enable programmable
auxiliary functions.
○4 Microphone
○6 Channel switcher:
Rotate it to select channel 1-16
○7 Power switch/volume control knob:
Clockwise rotate it to turn on the two way radio power, you will hear a sound of "ka", then continuously rotate it to
adjust volume. When you want to turn off two way radio, counter-clockwise rotate the knob until hear a sound of "ka".

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○8Indicator light of luminous diode:
When signal is sent, the initiator light is red; when signal is received, the indicator light is green. When battery
voltage is low the red light will be blinking.
○9Earphone & microphone jack
2.2 Introduction of programmable auxiliary function keys
Dealer can program K1，K2，K3 to perform one of following auxiliary functions.
Non-function
No function definition, key-pressing is invalid with an error beep
Emergency call
User can initiate emergency call by pressing this key, which is a top key with typically related function.( only short
key is supported, the long key-pressing must be related to emergency alarm off)
Cancel the emergency call
User can stop transmission emergency call by pressing this key, which is a top key with typically related
function.(only long key is supported, the short key must be related to enable the emergency alarm)
Steady-state monitoring (Analog mode)
If it is in a state of non-automatic reset, press this key to be in the monitoring state, press it again to quit the
monitoring state.
Transient-state monitoring (Analog mode)
If it is in a state of non-automatic reset, press this key to be in monitoring state, release it to quit the monitoring state
Steady-state Cancelling squelch (Analog mode)
When press the key of programming steady-state cancelling squelch, the noise squelch is turned on; press again the
cancelling squelch key to quit the noise squelch.
Transient-state cancelling squelch (Analog mode)
Press programming transient-state cancelling noise squelch to enable; release it to quit transient-state noise squelch.
Squelch-level adjustment (Analog mode)
When press the key of programming squelch-level adjustment, the squelch-level will be changed from "normal"－〉
"high"－〉"low"
Scan
Press this key to turn on /off scan function
Press programming scan key coming out a sound of "du" into scan, whilst green light is blinking, then press again the
key coming out a sound of "du du" to quit scan.

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One-key call 1~5（DMR）
Shortcut calling key, press it to come into shortcut calling mode, then press PPT to send calling auxiliary service
function

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Chapter 3 Composite mode
3.1Mode
Mode type Function
User mode This mode is used for general operation
PC mode
By this mode, through RS-232C port use
external programming cable to make various
settings
Debugging mode Adjust parameter of machine
3.2 How to enter each mode
Mode type Operation steps
user mode Boot whilst automatically come into user
mode
PC mode Use programming cable to connect with PC
Debugging mode Through programming software, come into
debugging mode.
3.3 PC mode
3.3.1 Preface
Use programming cable to connect two way radio and PC, operate programming software (ABELL A-510T
programming software) on PC to make programming setting for communication equipment. Figure 1 shows the
process of programming setting on PC.
User mode PC mode Debugging mode

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3.3.2 Connection steps
1) Use programming cable to connect A-510T and PC
2) Operate programming software (ABELL A-510T programming software).
3) Set the communication port
4) Conduct various programming operation on two way radio
5) When the radio sends data, red light is blinking. When the radio receives data, green light is blinking.
计算机（）
写频线
欧标对讲机编程
Note:
When data is written into EEPROM, the data stored in PC must conform with model of radio. Turn on power of
radio only on condition that the software must run and cable must be connected.
In the course of transmitting or receiving data, do not press [PTT] key.
Description of writing frequency line (PC programming interface cable: optional component)
Writing frequency line is used for connecting A-510 and PC. There is a level switching circuit in its D-model sub
socket (9 cores), this circuit can convert RS-232C logic level to transistor logic level. PC programming interface cable
can connect A-510 side socket and PC RS-232C serial port.
Description of programming software
ABELL A-510 programming software (installed) can allow user to conduct programming setting on A-510
through programming interface cable.
Use PC for programming
If use PC with ABELL two way radio programming for transmitting data to radio, the setting destination data
(basic communication parameters) can all be modified. as the value is automatically generated in setting frequency
range(frequency type), generally it is not necessary to change destination data. the value can be changed only in
necessary condition. The data in form of RS-232C can be input into EEPROM, in this mode, the function of PTT line
can be served for sending and receiving data.

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Chapter 4 Disassembled parts in maintenance process
4.1 Assemble and disassemble the belt clip
Loosen these two screws to disassemble back splint.