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Motorola GM-950 Manual

Control heads/control microphones specific information.
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Manual - 92 pages
User manual - 11 pages
User manual - 9 pages

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Control Heads/Control Microphones
Chapter
4A
Control Head for Radio Model N2 ........................................................ 4A.1-i
4B
Control Head for Radio Model N3......................................................... 4B.1-i
4C
Hand Held Control Microphone GMN6151 ........................................... 4C.1-i
4D
Control Head for Radio Model N4......................................................... 4D.1-i
Control Heads/Control Microphones Specific Information
Chapter 4
Specific Information
Table of Contents
Table of Contents
Page
4-i

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   Summary of Contents for Motorola GM-950

  • Page 1

    Table of Contents Chapter 4 Control Heads/Control Microphones Specific Information Table of Contents Chapter Page Control Head for Radio Model N2 ............4A.1-i Control Head for Radio Model N3............4B.1-i Hand Held Control Microphone GMN6151 ........... 4C.1-i Control Head for Radio Model N4............4D.1-i Control Heads/Control Microphones Specific Information...

  • Page 2

    Table of Contents 4-ii Control Heads/Control Microphones Specific Information...

  • Page 3

    Table of Contents Chapter 4B Control Head for Radio Model N3 Table of Contents Chapter 4B.1 Introduction/Theory of Operation 4B.2 PCB/Schematic Diagram and Parts List Control Head for Radio Model N3 4B-i...

  • Page 4

    Table of Contents 4B-ii Control Head for Radio Model N3...

  • Page 5

    Table of Contents Chapter 4B.1 Introduction/Theory of Operation Table of Contents Paragraph Page Introduction ....................1 Exploded View Diagram ................1 Theory of Operation .................. 2 Introduction/Theory of Operation 4B.1-i...

  • Page 6

    Table of Contents 4B.1-ii Introduction/Theory of Operation...

  • Page 7

    Overview Overview 4B.1 128 Channel, Radio Model N3 Control Head The features of the N3 radio control head are as follows: On/Off Button Rocker Type Volume Up/Down Control 3 digit, 7 segment Backlit LCD display 8 LCD Annunciators/Icons 3 LEDs (Red, Yellow, Green) Up/Down keys for Channel Increment/Decrement 6 Dealer Programmable Option Buttons Internal 4W Loudspeaker...

  • Page 8: Theory Of Operation

    Theory of Operation Theory of Operation General The Control Head contains the internal speaker, the microphone connector, several buttons to operate the radio, and several indicator Light Emitting Diodes (LED) to inform the user about the radio status. Additionally, the control head uses a 3 digit / 7 segment Liquid Crystal Display (LCD) for the numerical information e.g.

  • Page 9: Microphone Connector

    Theory of Operation Liquid Crystal Display (LCD) The LCD display H0931 is a 3 digit / 7 segment display which incorporates (11) annunciators. Data is loaded serially into the display driver U0932 via the SPI interface. The display data of line SPI DATA BUF is shifted serially into the display driver by clock signal LCD CLCK BUF.

  • Page 10

    Theory of Operation 4B.1-4 Introduction/Theory of Operation...

  • Page 11

    Table of Contents Chapter 4B.2 PCB/Schematic Diagram and Parts List Table of Contents Description Page Control Head (N3) - Diagrams and Parts Lists PCB Layout Component Side ..........1 PCB Layout Solder Side .

  • Page 12

    Table of Contents 4B.2-ii PCB/Schematic Diagram and Parts List...

  • Page 13

    Control Head (N3) PCB No. 8402622Y04_T2 H0931 D0943 D0956 D0957 D0964 D0953 D0961 D0965 D0969 D0968 D0941 D0942 D0966 D0954 D0958 D0962 D0970 J0903 D0952 D0944 D0960 R0902 D0951 D0967 D0955 D0959 D0963 Top Side D0925 R0945 R0912 R0946 Q0943 R0911 R0913 R0922...

  • Page 14

    Control Head (N3) PCB No. 8402622Y04_T2 4B.2-2 Diagrams and Parts List...

  • Page 15

    Control Head (N3) Schematic Diagram Control Head (N3) Schematic Diagram Diagrams and Parts List 4B.2-3...

  • Page 16

    Control Head (N3) Schematic Diagram Control Head (N3) Circuit Motorola Parts List Description Part No. R0932 0662057A73 10k 1/16W 5% Circuit Motorola Description Part No. R0933 0662057A97 100k 1/16W R0941 0662057A73 10k 1/16W 5% C0901 2113741F17 470pF 50V R0942 0662057A89...

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