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Service Manual
L1100
Model : L1100
P/N : MMBD0032801 Date: June, 2004 / Issue 1.0
REVISED HISTORY
DATE ISSUE CONTENTS OF CHANGES S/W VERSION
31/MAR/2004 ISSUE 0.1 Initial Release
The information in this manual is subject to change without notice and should not be construed as
a commitment by LGE Inc. Furthermore, LGE Inc. reserves the right, without notice, to make
changes to equipment design as advances in engineering and manufacturing methods warrant.
This manual provides the information necessary to install, program, operate and maintain the
L1100
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Table of Contents
1. INTRODUCTION.................................. 4
4.10 Vibrator Trouble ...............................
64
1.1 Purpose ................................................ 4
4.11 Keypad Backlight Trouble ...................
66
1.2 Regulatory Information .......................... 4
4.12 Folder Open/Close Trouble .................
68
1.3 Abbreviations ......................................... 6
4.13 SIM Detect Trouble ...........................
70
4.14 Earphone Trouble .............................
72
2. General Performance ........................ 7 4.15 Infrared Data Association Trouble .........
77
2.1 Product Name .......................................7 4.16 Camera Trouble ................................
80
2.2 Supporting Standard ..........................7
2.3 Main Parts .......................................7
2.4 H/W Features .................................. 8
5. ASSEMBLY INSTRUCTION .............97
2.5 S/W Features ..................................10
5.1 Disassembly ..........................................97
3. H/W Circuit Description ....................12
3.1 RF Transceiver General Description ......
12 6. DOWNLOAD .................................103
3.2 Receiver Part ..................................12
6.1 Download Setup .....................................
103
3.3 Transmitter Part ..................................
15
6.2 Download Procedure ..........................
104
3.4 Power Amplifier ..................................
17
3.5 26MHz Clock .....................................
17
3.6 Power Supplies and Control Signals ......
18
7. SERVICE AND CALIBRATION ........ 111
3.7 Digital Baseband (DBB) Processor .........
19
3.8 Analog Baseband (ABB) Processor .........
24 111
7.1 Service S/W ..........................................
3.9 Camera Circuit ....................................
42 114
7.2 Calibration .......................................
8. CIRCUIT DIAGRAM ......................... 119
4. TROUBLESHOOTING .................... 49
4.1 Main Components Placement ..............
49 8.1 BB_MAIN ............................................
119
4.2 FPCB Components Placement .............
50 8.2 AUDIO ............................................
120
4.3 Baseband Components .......................
50 8.3 MEMORY ........................................
121
4.4 Main Components ..............................
51 8.4 MMI ................................................
122
4.5 Power On Trouble ...............................
52 8.5 Peripheral .........................................
123
4.6 Charging Trouble ..................................53 8.6 CAMERA .......................................
124
4.7 LCD Display Trouble .............................
55 8.7 LCD ...............................................
125
4.8 Receiver Trouble ...............................
57 8.8 RF .................................................
126
4.9 Microphone Trouble ............................
61
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Table of Contents
9. PCB LAYOUT ............................... 127
10. ENGINEERING MODE ................... 129
11. STANDALONE TEST ..................... 130
130
11.1 Setting Method .....................................
12. EXPLODED VIEW &
REPLACEMENT PART LIST.......... 131
131
12.1 Exploded View .....................................
12.2 Replacement Parts
133
....................
Replacement Parts
136
...........................
148
12.3 Accessory ......................................
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1. Introduction
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the L1100
1.2 Regulatory Information
A. Security
Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for example,
persons other than your company's employees, agents, subcontractors, or person working on your
company's behalf) can result in substantial additional charges you're your telecommunications
services. System users are responsible for the security of own system. There are may be risks of toll
fraud associated with your telecommunications system. System users are responsible for
programming and configuring the equipment to prevent unauthorized use. LGE does not warrant that
this product is immune from the above case but will prevent unauthorized use of common-carrier
telecommunication service of facilities accessed through or connected to it. LGE will not be
responsible for any charges that result from such unauthorized use.
B. Incidence of Harm
If a telephone company determines that the equipment provided to customer is faulty and possibly
causing harm or interruption in service to the telephone network, it should disconnect telephone
service until repair can be done. A telephone company may temporarily disconnect service as long as
repair is not done.
C. Changes in Service
A local telephone company may make changes in its communications facilities or procedure. If these
changes could reasonably be expected to affect the use of the L1100 or compatibility with the network,
the telephone company is required to give advanced written notice to the user, allowing the user to
take appropriate steps to maintain telephone service.
D. Maintenance Limitations
Maintenance limitations on the L1100 must be performed only by the LGE or its authorized agent. The
user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore,
note that unauthorized alternations or repair may affect the regulatory status of the system and may
void any remaining warranty.
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E. Notice of Radiated Emissions
The L1100 complies with rules regarding radiation and radio frequency emission as defined by local
regulatory agencies. In accordance with these agencies, you may be required to provide information
such as the following to the end user.
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
G. Interference and Attenuation
An L1100 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from
unsuppressed engines or electric motors may cause problems.
H. Electrostatic Sensitive Devices
ATTENTION
Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign.
Following information is ESD handling: