LG - KE990 - Mobile phone
Manufacturer:
No picture available!
Maybe you can
upload a pic
for the
LG KE990 ?
If you have any other manuals for the
LG KE990
you can
upload the files here.
.
Equipment:
KE990
Date:
2008
Category:
Group:
Sub Group:
1 Manual
Service manual
Manual type:
Service manual
Pages:
204
Size:
11.6 MB
Language:
english
Revision:
1.0
Manual-ID:
Date:
April 2008
Quality:
Electronic document, no scan, very well readable.
Upload date:
Jan. 15, 2020
MD5:
b60ba53a-1451-ac28-1c87-1fb5e368bc16
Information
1. INTRODUCTION ... 5
1.1 Purpose... 5
1.2 Regulatory Information... 5
2. PERFORMANCE...7
2.1 Supporting Standard ...7
2.2 Main Parts : Solution...7
2.3 HW Features...8
2.4 HW SPEC. ...10
3. TECHNICAL BRIEF ...15
3.1 General Description ...15
3.2 GSM Mode...17
3.3 LO generation and distribution circuits...20
3.4 Off-chip RF Components ...21
3.5 Digital Baseband (DBB/ESM6270) ...28
3.6 Subsystem(ESM6270) ...31
3.7 Power Block ...38
3.8 External memory interface ...43
3.9 H/W Sub System...45
3.10 Feature List ...61
3.11 Multimedia Chip Interface ...67
3.12 Touch Screen Interface...73
3.13 Main Features ...74
3.14 Main Component...75
4. TROUBLE SHOOTING ...81
4.1 RF Component...81
4.2 Main Component...82
4.3 Checking VCTCXO Block ...83
4.4 Checking Front-End Module Block ...85
4.5 Checking GSM Block ...88
4.6 Power on trouble...94
4.7 SIM detect trouble...99
4.8 Key sense trouble (KEYPAD) ...100
4.9 Keypad backlight trouble...102
4.10 Micro SD trouble ...104
4.11 Audio trouble...105
4.12 Camera trouble ...118
4.13 Main LCD trouble ...121
4.14 Bluetooth trouble...124
4.15 Touch Screen trouble...126
5. DOWNLOAD ...127
5.1 Introduction ...127
5.2 Downloading Procedure...127
5.3 Troubleshooting Download Errors ...142
5.4 Caution...147
6. BLOCK DIAGRAM ...148
6.1 GSM RF Block ...148
6.2 Interface Diagram ...150
7. Circuit Diagram ...153
8. BGM Pin Map...163
9. PCB LAYOUT ...169
10. Calibration & RF Auto Test
Program (Hot Kimchi)...173
10.1 Usage of Hot-Kimchi ...173
11. EXPLODED VIEW &
REPLACEMENT PART LIST ...177
11.1 EXPLODED VIEW ...177
11.2 Replacement Parts
<Mechanic component>...179
<Main component> ...183
11.3 Accessory ...203
Downloads:
1002
Last month downloads:
3
Download
lg--ke990--service--ID12481.pdf