Ericsson M-RK Two-Way Radios Manuals

Manuals and User Guides for Ericsson M-RK Two-Way Radios. We have 3 Ericsson M-RK Two-Way Radios manuals available for free PDF download: Maintenance Manual

Ericsson M-RK Maintenance Manual (18 pages)

UHF PERSONAL TWO-WAY FM RADIO COMBINATION

Brand: Ericsson | Category: Two-Way Radio | Size: 0 MB

Table of Contents
2
Specifications
3
Specifications
4
Description
5
Radio Assembly
6
System Analysis
9
- Radio Board Assy
  9
  - Transmit Circuits
    9
    
    Power Amplifier Module (U7)
    9
    
    LPF/DC/T/R SW Module (U8)
    9
  - Receive Circuit
    9
    
    RF Amplifier/Mixer
    9
    
    First if Amplifier
    9
    
    Figure 4 - Power Amplifier (PA) UHF
    13
    
    Second if Amplifier/Discriminator (U11)
    14
    
    Synthesizer Circuit
    14
    
    Phase-Lock-Loop Module (U2)
    14
    
    Voltage-Controlled Oscillator (U5)
    14
    
    VCTCXO Reference Oscillator (Z1)
    14
- Logic Circuit
  15
  - Control Board Assy
    15
    
    Microcomputer
    16
    
    Fl Ash EPROM (U4)
    16
    
    Ram (U5)
    16
    
    E 2 Prom (U6)
    16
    
    Digital Signal Processor (DSP)(U3)
    16
    
    Voltage Regulator (U9, U10)
    16
    
    Audio Amplifier (U11)
    16
    
    Audio Signal Processor (ASP)(U7)
    16
  - LED Flex Assy. (M-RK I)
    17
  - LCD/KB Flex Assy. (M-RK II)
    17
  - Keypad (M-RK II)
    17
  - Udc
    17
Maintenance
17
- Initial Adjustment
  17
  - Transmit Circuit Alignment
    17
  - Receive Circuit
    17
  - Synthesizer Circuit
    18

Ericsson M-RK Maintenance Manual (18 pages)

VHF PERSONAL TWO-WAY FM RADIO COMBINATION

Brand: Ericsson | Category: Two-Way Radio | Size: 0 MB

Table of Contents
2
Specifications
3
Specifications
4
Description
5
Radio Assembly
6
System Analysis
9
- Radio Board Assy
  9
- Logic Circuit
  15
  - Control Board Assy
    15
    
    Microcomputer
    16
    
    Fl Ash EPROM (U4)
    16
    
    Ram (U5)
    16
    
    E 2 Prom (U6)
    16
    
    Digital Signal Processor (DSP)(U3)
    16
    
    Voltage Regulator (U9, U10)
    16
    
    Audio Amplifier (U11)
    16
    
    Audio Signal Processor (ASP)(U7)
    16
  - LED Flex Assy. (M-RK I)
    17
  - LCD/KB Flex Assy. (M-RK II)
    17
  - Keypad (M-RK II)
    17
  - Udc
    17
Maintenance
17
- Initial Adjustment
  17
  - Transmit Circuit Alignment
    17
  - Receive Circuit
    17
  - Synthesizer Circuit
    18

Ericsson M-RK Maintenance Manual (16 pages)

806 - 869 MHz PERSONAL TWO-WAY FM RADIO COMBINATION

Brand: Ericsson | Category: Two-Way Radio | Size: 0 MB

Table of Contents
2
Specifications
4
Description
5
Figure 2 - M-RK II Controls and Accessories
7
Radio Assembly
8
- Transmit Circuit
  8
- Receive Circuit
  8
- Frequency Synthesizer
  8
- Logic Circuit
  8
System Analysis
9
- Radio Board Assembly
  9
  - Transmit Circuits
    9
    
    Figure 4 - Logic Block Diagram
    10
    
    LPF/DC/TR SW Module (U8)
    11
    
    Power Amplifier Module (U7)
    11
  - Receive Circuit
    11
    
    RF Amplifier/Mixer
    11
    
    First if Amplifier
    12
    
    Second if Amplifier/Discriminator (U11)
    12
  - Synthesizer Circuit
    12
    
    Phase-Lock-Loop Module (U2)
    12
    
    Voltage-Controlled Oscillator (U5)
    13
    
    VCTCXO Reference Oscillator (Z1)
    13
- Logic Circuit
  13
  - Control Board Assembly
    13
    
    Microcomputer
    13
    
    Flash E 2 PROM (U4)
    13
    
    Ram (U5)
    13
    
    E2Prom (U6)
    13
    
    Digital Signal Processor (DSP)(U3)
    14
    
    Voltage Regulator (U9, U10)
    14
    
    Audio Amplifier (U11)
    14
    
    Audio Signal Processor (ASP)(U7)
    14
  - LCD/KB Flex Assembly
    14
  - Keypad
    14
  - Udc
    14
Maintenance
15
- Initial Adjustment
  15
  - Transmit Circuit Alignment
    15
  - Receive Circuit
    15
  - Synthesizer Circuit
    15
Replacement
16

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