LG GB230 1 free download

File name LG GB230 1.pdf

Service Manual Internal Use Only Service Manual GB230 Model : GB230 Date: June, 2009 / Issue 1.0 Table Of Contents 1. INTRODUCTION ... 5 4.15 Micro SD Trouble ...102 1.1 Purpose ...5 4.16 Bluetooth Trouble...104 1.2 Regulatory Information ...5 4.17 FM Radio Trouble...106 1.3 Abbreviations ...7 4.18 Slide on/off Trouble ...108 2. SYSTEM SPECIFICATION... 9 5. DOWNLOAD... 110 2.1 H/W Features ...9 5.1 S/W Download ...110 2.2 Technical Specification ...11 5.2 Download program user guide...111 5.3 Multi-Download Program Setting (Model-Base)...112 3. TECHNICAL BRIEF... 16 3.1 Digital Main Processor ...16 6. Block Diagram ... 114 3.2 Power Management ...21 7. CIRCUIT DIAGRAM ... 115 3.3 FEM with integrated Power Amplifier Module (SKY77531, U400) ...35 8. BGA Pin Map ... 123 3.4 Crystal(26 MHz, X100) ...37 3.5 RF Subsystem of PMB8810 (U101) ...38 9. PCB LAYOUT ... 125 3.6 MEMORY(PF38F5060M0Y0BE, U100 ) ...43 10. ENGINEERING MODE... 129 3.7 BT module ...45 3.8 SIM Card Interface...47 11. STAND ALONE TEST...