LG FM300 Manuals

Manuals and User Guides for LG FM300. We have 1 LG FM300 manual available for free PDF download: Service Manual

LG FM300 Service Manual

LG FM300 Service Manual (128 pages)

Brand: LG | Category: Wireless Router | Size: 20.37 MB

Table of Contents

Table of Contents
2
1 Introduction

3
- Purpose
  3
- Regulatory Information
  3
- Abbreviations
  5
2 Performance

8
- W Features
  8
- LTE Technical Specification (TS 36.101 V10.0.0)
  9
3 Technical Brief

12
- Main
  12
- Ethernet Interface
  17
- Lte(Sub)
  19
4 Trouble Shooting

24
- Power on Trouble - 3.3V Main Power
  24
- Power on Trouble - BCM Booting Trouble
  27
- Power on Trouble - 3.75V LTE Power
  31
- SIM Card Trouble
  35
- Power LED Indication Trouble
  41
- Ethernet LED Indication Trouble
  43
- RGB LED Indication Trouble
  45
- USB Connection Trouble
  47
- Ethernet Connection Trouble
  52
- LTE RF Component (Primary)
  55
- LTE VCXO Trouble
  56
- LTE Tx Trouble
  58
- Power on Trouble - LTE Booting Trouble
  60
- Memory Trouble Shooting
  64
5 Download

67
6 Block Diagram

73
7 Circuit Diagram

74
8 Bga Pin Map

85
9 Pcb Layout

86
10 Calibration

90
- Lte Auto Calibration
  90
11 Stand Alone Test

97
- Introduction
  97
12 Exploded View & Replacement Part List

99
- 1.1 Exploded View
  99
- Replacement Parts
  101

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