Ericsson MGM 148 VHF Mobile Radio Manuals

Manuals and User Guides for Ericsson MGM 148 VHF Mobile Radio. We have 1 Ericsson MGM 148 VHF Mobile Radio manual available for free PDF download: Maintenance Manual

Ericsson MGM 148 Maintenance Manual

Ericsson MGM 148 Maintenance Manual (76 pages)

VHF MOBILE RADIO Monogram Series

Brand: Ericsson | Category: Marine Radio | Size: 3 MB

Table of Contents

Table of Contents
2
Specifications

4
Unpacking

8
General Description

9
Description of Controls

10
- Front Panel Controls
  10
- Rear Panel Controls
  11
General Operation

12
- Radio On/Off, Power up
  12
- Receiving
  12
- Transmitting
  12
- Digital Channel Guard
  13
Circuit Analysis

14
- Receiver
  14
- Transmitter
  15
- Frequency Synthesizer
  15
Preventive Maintenance

17
- Connections
  17
- Electrical System
  17
- Mechanical Inspection
  17
- Antenna
  17
- Alignment
  17
- Frequency Check
  17
Disassembly

18
- Top and Bottom Covers
  18
- Front Panel
  18
- RF Board
  18
- Digital Board
  19
- Disassembly
  19
Programming Instructions

20
Test Equipment Setup

21
Alignment Procedure

22
- Suggested Test Equipment
  22
- Pre-Alignment Notes
  22
- Programming for Alignment
  22
- PLL Alignment
  23
- Transmitter Alignment
  23
- Receiver Alignment
  25
ALIGNMENT POINTS 406041-F Issue:h DIGITAL BOARD

27
ALIGNMENT POINTS 406039-E Issue:h RF BOARD

28
Performance Test

29
- Transmitter
  29
- Receiver
  30
Component Replacement

32
- Surface Mount Component Replacement
  33
Electrical Parts List

34
Printed Circuit Board Layouts

35
Exploded View

70
Schematics

74

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