Motorola PRO2150 Service Manual Page 128
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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August 30, 2002 99R85452E01-O
Glossary-2
Digital Private Line
(DPL)
DPL is a digital format transmitted along with the carrier. DPL allows for
more use and privacy on a frequency. DPL is transmitted at a sub-audi-
ble (not able to be heard) frequency.
DPL Digital Private-Line™
DTMF Dual-Tone Multi-frequency. A Signaling System protocol widely used in
the telephone industry. Two tones are transmitted simultaneously at dif-
ferent amplitudes for each keypad key press. A sequential series of Dual
Tones makes a data word.
DTMF Tx Tone
Duration
DTMF Tx Tone Duration is the amount of time that a DTMF tone is trans-
mitted for a single digit. Once this Tx Tone Duration ends, the DTMF Tx
Tone Interval begins, and vice-versa.
DTMF Tx Tone
Interval
DTMF Tx Tone Interval is the amount of time that the radio waits
between DTMF digits. Once Tx Tone Interval ends, the DTMF Tx Tone
Duration begins, and vice-versa.
EEPROM Electronically Erasable/Programmable Read-Only Memory: used by the
radio to store its personality.
Firmware Software, or a software/hardware combination of computer programs
and data, with a fixed logic configuration stores in a read-only memory.
Information cannot be altered or reprogrammed.
FGU Frequency Generation Unit.
Frequency (a) The location of the center of a channel of operation in the radio spec-
trum. Measured in Megahertz (MHz).
(b) A computer speed. Measured in Megahertz (MHz).
Hard Pot Hardware potentiometer for adjustment of parameter settings.
Home Channel The channel where scan is started.
Landed Scan
State
When the radio is in Scan Mode, and once Active Scan finds an eligible
Scan List Member channel/call to receive or unmute to, the radio is then
in Landed Scan State. Also, once both Transmit and Receive activity
has ceased, and while the Scan Hang Timer is counting down, the radio
is still in Landed Scan Mode.
Latest Codeplug
Version
The most recent version number of codeplug information that was
loaded into the radio. This is stored in the radio’s codeplug.
LCD Liquid Crystal Display: a module used to display the radio’s current oper-
ating channel info or status message.
Long Press
Function
Function that is invoked if the button is pressed and released after one
second.
Lower Scan
Frequency
The lower limit that VFO will scan.
Maximum
Frequency
The highest frequency setting at which the radio is allowed to operate.
The radio’s frequency range is defined as being between, or equal to,
the Minimum and Maximum frequencies. This information is stored in
the radio’s codeplug.
Term Definition
- Portable Radio 1
- Table of Contents i 3
- Table of Contents iii 5
- ATTENTION! 7
- Chapter 1 Introduction 9
- 1.2.3 Piece Parts 10
- 1.2.4 Technical Support 10
- 1.2.5 Parts Identification 10
- 1.3 Radio Model Information 11
- 1.4 Radio Features 12
- CPS User 13
- Introduction 14
- : Radio Features 14
- Chapter 2 Maintenance 15
- 2.4.2 Rigid Circuit Boards 16
- 2.4.3 Flexible Circuits 17
- 2.4.4 Chip Components 17
- 2.4.5 Shields 18
- See Figure 2-1 19
- See Figure 2-2 19
- Figure 2-2 19
- See Figure 2-3 20
- See Figure 2-4 20
- 2.6.3 RF Board Disassembly 21
- 2.7.1 RF Board Reassembly 22
- See Figure 2-9 23
- See Figure 2-10 23
- See Figure 2-11 23
- Figure 2-12 24
- See Figure 24
- See Figure 2-15 24
- 12. Attach the battery 25
- Figure 2-15 25
- Figure 2-16 26
- Description 27
- 2.9 Service Aids 28
- 2.10 Test Equipment 29
- Figure 2-17 30
- Figure 2-18 30
- 2.12 IF Test Box (DSK001C702) 31
- Maintenance 32
- : IF Test Box (DSK001C702) 32
- Chapter 3 Radio Tuning 33
- Figure 3-3 34
- 3.4.1 Audio Modulation Tuning 35
- 3.4.3 Tuning Frequency 36
- Chapter 4 Radio Programming 37
- 4.3 CPS Programming 38
- 4.4 Programming 39
- 4.4.2 DPL Codes 40
- 4.4.3 Examples 40
- Radio Programming 41
- : Programming 4-5 41
- : Programming 42
- Chapter 5 Error Code Displays 43
- Error Code Displays 44
- : Error Codes 44
- Chapter 6 Accessories 45
- 6.7 Manuals 46
- 6.8 Software 46
- 7.1 Model Chart 47
- 7.2 Specifications 48
- 7.3 Theory of Operation 49
- 7.3.4 CPU / Control Section 50
- 7.3.6 Transmitter Section 51
- 7.3.7 Receiver Section 52
- 7.3.8 Battery Section 53
- 7.4 Block Diagrams 54
- 7.4.2 Controller 55
- 7.4.3 VCO 55
- 7.4.4 Transmitter 56
- 7.4.5 Receiver 56
- 7.5 Troubleshooting Charts 57
- Troubleshooting Flow Chart 58
- VHF Band Information 62
- : Troubleshooting Charts 62
- Top Side Bottom Side 64
- 8.1 Model Charts 79
- Model Description 80
- 8.2 Specifications 81
- 8.3 Theory of Operation 82
- 8.3.4 CPU / Control Section 83
- 8.3.6 Transmitter Section 84
- 8.3.7 Receiver Section 85
- 8.3.8 Battery Section 86
- 8.4 Block Diagrams 87
- 8.4.2 Controller 88
- 8.4.3 VCO 88
- 8.4.4 Transmitter 89
- 8.4.5 Receiver 89
- 8.5 Troubleshooting Charts 90
- August 30, 2002 99R85452E01-O 100
- 99R85452E01-O August 30, 2002 101
- Top Side 112
- Bottom Side 112
- 22p(R2) 56p(R1) 116
- 680K(R2) 1.5M(R1) 116
- 150K(R2)330k(R1) 116
- Glossary of Terms Glossary 127
- Glossary-2 128
- Original Codeplug 129
- Glossary-4 130
- Glossary-5 131
- Glossary-6 132
- Glossary-7 133
- Glossary-8 134
- *9985452E01* 136
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