![background image](http://html.mh-extra.com/html/motorola/mth500/mth500_service-manual_246020147.webp)
68P02963C70-O
A4 - 1
Appendix 4 Glossary
µC
Microcontroller
ABACUS
Analog to digital converter for a radio receiver.
A/D
Analog to Digital
A/D Converter
A device that converts an instantaneous dc voltage level to a corresponding digital
value. Also known as CODEC.
ACELP
Algebraic Code Excited Linear Prediction
AGC
Automatic Gain Control
BDM
Background Debug Mode
CPS
Customer Programming Software
D/A
Digital to Analog converter
D/A Converter
A device that converts a digital value to a corresponding dc voltage value.
DQPSK
Differential Quadrature Phase Shift Keying. A sub-class of the QPSK methods of
transmitting data. Rather than using the absolute value of phase (as in QPSK), only the
difference between the current value of phase and the previous value of phase are used.
By using phase differences, the implementation is simpler (since an absolute reference
source is not required).
DSI
Data Serial Input
DSO
Data Serial Output
DTMF
Dual Tone Multi-Frequency
DSP
Digital Signal Processor; microcontroller specifically tailored for signal processing
computations.
EEPROM
Electrically Erasable Programmable Read Only Memory. Integrated circuit used to
store data, which can be erased by electrical methods.
GCAP
Global Control Audio Power
IC
Integrated Circuit
IF
Intermediate Frequency
Содержание MTH500
Страница 10: ...Contents x 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 14: ...Foreword xiv 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 18: ...Overview 1 4 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 50: ...Theory of Operation 2 32 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 76: ...Troubleshooting 3 26 68P02963C70 O Offset VCO Test ...
Страница 78: ...Troubleshooting 3 28 68P02963C70 O This page left blank intentionally ...
Страница 82: ...Programming the Radio 4 4 68P02963C70 O This page left blank intentionally ...
Страница 100: ...Maintenance 5 18 68P02963C70 O Figure 23 Exploded View 1 2 3 4 5 7 6 X6 8 ...
Страница 101: ...Maintenance 68P02963C70 O 5 19 Figure 24 Exploded View of Chassis Assembly 9 12 13 10 11 14 ...
Страница 102: ...Maintenance 5 20 68P02963C70 O ...
Страница 103: ...MTH500 Detailed Service Manual COMPONENT BOARD LAYOUTS 68P02963C70 O 6 1 Component Board Layouts ...
Страница 104: ...MTH500 Detailed Service Manual COMPONENT BOARD LAYOUTS 6 2 68P02963C70 O This page intentionally left blank ...
Страница 109: ...MTH500 Detailed Service Manual Schematic Diagrams and Parts Lists 68P02963C70 O 6 7 Schematic Diagrams and Parts Lists ...
Страница 134: ...SCHEMATIC DIAGRAMS MTH500 Flex CD 6 32 68P02963C70 O This page left blank intentionally ...
Страница 140: ...Replacement Parts and Kits 6 68P02963C70 O ...
Страница 141: ...Replacement Parts and Kits 68P02963C70 O 7 ...
Страница 142: ...Replacement Parts and Kits 8 68P02963C70 O ...
Страница 144: ...Test Equipment Service Aids Tools A2 2 68P02963C70 O THIS PAGE INTENTIONALLY LEFT BLANK ...