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GP2000
Motorola GP2000 Service Manual
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Block Diagrams
7-11
4.4
T
ransmitter
4.5
Receiver
DAC
RX
ANT
To R
ece
iver
TX +
B
+B
TX 5
V
DAC
TX
Hamo
nic
s
Filt
er
C440
-44
5,L4
15,4
16
Matc
hin
g Ne
twor
k
C446
-44
8,45
1,45
2
L418
,41
9
Powe
r
Cont
rol
Q419
ANT
Swit
ch
Q409
,41
0
Buff
er
AMP
Q414
Coup
ler
R445
Pre
Dri
ver
Q413
P in
VCO
Fina
l
AMP
Q411
PA
Q412
DAC
RX
From
VCO
From
ANT
Swit
ch
2-Po
le
Band
Pass
Filt
er
Q401
2-Po
le
Band
Pass
Filt
er
Q405
2-Po
le
Crys
tal
Filt
er
F402
2nd
Local
44.6
54MHz
X501
6 Po
le
Cera
mic
Filt
er
F501
6 Po
le
Cera
mic
Filt
er
F502
Mixe
r
Q407
RF
AMP
Q404
Loca
l
Buff
er
Q416
IF
AMP
Q408
IF I
C Q5
06
(2nd
Mix,
2nd
Local
,IF
AMP,D
ISC,
Noise
AMP
)
72
74
Table of Contents
Computer Software Copyrights
2
Safety Information
3
Antenna Care
4
Electromagnetic Interference/Compatibility
4
Approved Accessories
4
Safety and General
5
Operational Warnings
5
Potentially Explosive Atmospheres
5
Blasting Caps and Areas
5
Operational Cautions
5
Table of Contents
7
Scope of Manual
11
Warranty and Service Support
11
Warranty Period and Return Instructions
11
After Warranty Period
11
Piece Parts
12
Technical Support
12
Radio Model Information
13
Maintenance
15
Introduction
15
Preventive Maintenance
15
Inspection
15
Cleaning Procedures
15
Safe Handling of CMOS and LDMOS Devices
16
Repair Procedures and Techniques Ñ General
17
Disassembling and Reassembling the Radio Ñ General
18
Radio Disassembly Ñ Detailed
19
Front Cover from Chassis Disassembly
19
Control Board Disassembly
21
RF Board Disassembly
21
Radio Reassembly Ñ Detailed
22
RF Board Reassembly
22
Control Board Reassembly
22
Chassis and Front Cover Reassembly
22
Mechanical View and Parts List
25
Exploded View and Parts List
25
Service Aids
28
Test Equipment
29
Programming Cable (DSK001C706)
30
IF Test Box (DSK001C702)
31
Radio Tuning
33
Introduction
33
Radio Tuning Setup
33
Radio Programming
35
Introduction
35
CPS Programming Setup
35
Programming Your Radio
36
Overview of the Programming Process
36
Cloning Radio Parameters to User Radios
36
Parameters Which Are Cloned
36
Parameters Which Are Not Cloned
36
To Clone a Radio
36
Error Conditions
37
Dealer and User Configurations
37
Programming Mode
38
Introduction
38
Entering Programming Mode
38
Exiting Programming Mode
38
Accessing Programming Mode Parameters
38
Editing RW (Radio Wide) Parameters
39
Editing Channel Parameters
45
Editing VFO Parameters
48
PL Frequencies and Codes
52
DPL Codes
53
Examples
54
Programming an ID
55
Programming Phone Number/Access Code/De-Access Code
56
Factory Reset
56
Error Code Displays
57
Error Codes
57
Antennas
59
Carrying Accessories
59
Carry Cases
59
Chargers
60
Batteries
60
Audio Accessories
60
Manuals
60
Service Kits
61
VHF Band Information (136-174 Mhz)
63
Model Chart
63
Specifications
65
Theory of Operation
66
General Information
66
Power Distribution
66
Power up Sequence
66
CPU / Control Section
67
VCO / Synthesizer Section
67
Transmitter Section
68
Receiver Section
69
Battery Section
70
Block Diagrams
71
Complete
71
Controller
72
Vco
72
Transmitter
73
Receiver
73
Circuit Board/Schematic Diagrams and Parts List
75
Controller Board
75
VHF 136-174 Mhz Main Board Top Side
76
VHF 136-174 Mhz Main Board Bottom Side
77
Complete Controller Board Schematic Diagram
78
VHF 136-174 Mhz RF Board Schematic Diagram
79
VHF 136-174 Mhz Radio Parts List (Controller Board)
80
Troubleshooting Charts
89
Troubleshooting Flow Chart for Receiver
89
Troubleshooting Flow Chart for Transmitter
90
Troubleshooting Flow Chart for Synthesizer
91
Troubleshooting Flow Chart for Microcontroller
92
Troubleshooting Flow Chart for VCO
93
Glossary of Terms
95
4
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Motorola GP2000 Specifications
General
Brand
Motorola
Model
GP2000
Category
Portable Radio
Language
English
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