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LG-UD2750
LG LG-UD2750 Manuals
Manuals and User Guides for LG LG-UD2750. We have
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LG LG-UD2750 manual available for free PDF download: Service Manual
LG LG-UD2750 Service Manual (69 pages)
CDMA MOBILE SUBSCRIBER UNIT
Brand:
LG
| Category:
Cell Phone
| Size: 1 MB
Table of Contents
Table of Contents
3
General Introduction
4
System Introduction
5
CHAPTER 1. System Introduction
5
CDMA Abstract
5
Features and Advantages of CDMA Mobile Phone
7
Power Control
7
Structure and Functions of CDMA Mobile Phone
10
Specification
11
Transmit Specification
12
Installation
14
Cable Connections
15
CHAPTER 2. NAM Input Method(Inputting of Telephone Numbers Included)
16
CHAPTER 2. NAM Input Method
16
Telephone Number and NAM Programming Method
16
CHAPTER 3. Circuit Description
19
RF Transmit/Receive Part
19
Digital/Voice Processing Part
24
Memory Part
26
Power Supply Part
26
Logic Part
27
Chapter 4. Trouble Shooting
29
Checking Regulator Circuit
30
Test Point
30
Circuit Diagram
30
Checking VCTCXO Circuit
31
Checking Control Signal
34
Power on Trouble
50
Charging Trouble
52
MIC Trouble
56
Test Points
56
Key Backlight LED Trouble
60
Earphone Trouble
62
LCD Trouble
65
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