Motorola pro7100 Servisní příručka stáhnout pdf (Strana 70)

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ZWG0130113

Figure 4-2. PRO3100/CDM750 Control Head Bottom Overlay

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 108 109

Professional Radio 1
Computer Software Copyrights 2
SAFETY INFORMATION 3
W A R N I N G 4
C a u t i o n 4
Safety-3 5
Safety-4 6
Relabeling 6
TABLE OF CONTENTS 7
Chapter 3 Maintenance 9
List of Figures 9
List of Tables 10
Chapter 1 11
Introduction 11
1.3 Related Documents 12
1.4 Technical Support 12
1.5 Warranty and Repairs 12
1.7 Radio Model Information 14
Chapter 2 15
Theory of Operation 15
2-2 Theory of Operation 16
2.2.2 Automatic On/Off 17
2.2.3 Emergency 18
2.2.4 Mechanical On/Off 18
2.2.5 Ignition 18
Theory of Operation 2-5 19
2.2.8 SBEP Serial Interface 20
Theory of Operation 2-7 21
2-8 Theory of Operation 22
2.3.2 Transmit Audio Circuits 23
2.3.3 Microphone Input Path 23
2-10 Theory of Operation 24
Theory of Operation 2-11 25
2.3.4.2 High Speed Data 26
2.3.5 Receive Audio Circuits 27
2.3.5.1 Squelch Detect 27
2-14 Theory of Operation 28
2.3.5.4 Handset Audio 29
ASFIC_CMP 30
2.3.6.3 Voice Storage Option 31
Theory of Operation 2-19 33
2.5.1 Power Controlled Stage 34
2.5.2 Pre-Driver Stage 34
Theory of Operation 2-21 35
2.6 Frequency Synthesis 36
Theory of Operation 2-23 37
2-24 Theory of Operation 38
2.6.4 Synthesizer Operation 39
Theory of Operation 2-27 41
2.8.1 Power Controlled Stage 42
2.8.2 Pre-Driver Stage 42
2.8.3 Driver Stage 43
2.8.4 Final Stage 43
2.8.5 Directional Coupler 43
2.8.6 Antenna Switch 43
2.8.7 Harmonic Filter 43
2.9 Frequency Synthesis 44
Theory of Operation 2-31 45
2.9.4 Synthesizer Operation 47
2.10.1 Power Supplies 48
2.10.2 Power On/Off 48
2.10.3 Microprocessor Circuit 48
2.10.4 SBEP Serial Interface 49
2.10.5 Keypad Keys 49
2.10.8 Speaker 50
2.11.1 Power Supplies 51
2.11.2 Power On / Off 51
2.11.3 Microprocessor Circuit 51
2.11.4 SBEP Serial Interface 52
2.11.5 Keypad Keys 52
Theory of Operation 2-39 53
2.11.9 Speaker 54
Chapter 3 55
Maintenance 55
Maintenance 3-3 57
3-4 Maintenance 58
Table 3-1 59
60
Maintenance 3-7 61
3-8 Maintenance 62
Mobile Synthesizer Section 63
3-10 Maintenance 64
3.9 VCO Troubleshooting Chart 65
3-12 Maintenance 66
Chapter 4 67
6-LAYER CIRCUIT 68
COPPER STEPS IN PROPER 68
LAYER SEQUENCE 68
BOARD DETAIL VIEWING 68
ZWG0130113 70
ZWG0130239 71
ZWG0130240 72
ZWG0130136 75
ZWG0130137 76
ZWG0130241 77
ZWG0130242 78
BACKLIGHT GREEN 79
U0971 Display Driver 80
ZWG0130229-A 84
ZWG0130230 A 85
ASFIC CMP 86
ZWG0130231-A 86
ZWG0130232-A 87
ZWG0130272 91
ZWG0130270 92
ZWG0130271 93
ZWG0130227P 99
3,0 -7,5VDC 100
(SOURCE) 102

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