Abell A-510T, Service Manual

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A-510T（UHF）Ver1.0
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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 P
REFACE
.................................................................................................................................................................... 8
3.3.2
C
ONNECTION 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 C
HANNEL
................................................................................................................................................................ 22
6.1.2
A
NALOG
+
DIGITAL DUAL MODE SYSTEM
(
SMOOTH TRANSITION
)............................................................................ 22
6.1.3 V
OICE ENCRYPTION
................................................................................................................................................. 22
6.1.4
V
OICE BROADCAST
................................................................................................................................................. 22
6.1.5
O
NE
-
KEY CALL
........................................................................................................................................................ 22
6.1.6 C
ALL CONFIRMATION
.............................................................................................................................................. 22