LG B2070 free download

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Service Manual Service Manual B2000 B2070 Model : B2000 Model : B2070 Date: October, 2005 / Issue 1.0 P/N : MMBD0047201 Date : March 2005 / Issue 1.0 Table Of Contents 1. INTRODUCTION...2 5. DOWNLOAD AND 1.1 Purpose ...2 CALIBRATION ...91 1.2 Regulatory Information ...2 5.1 Download ...91 1.3 Abbreviations ...4 5.2 Calibration ...96 2. PERFORMANCE ... 6 6. BLOCK DIAGRAM ...99 2.1 H/W Feature ...6 2.2 Technical Specification ...8 7. CIRCUIT DIAGRAM ...101 3. TECHNICAL BRIEF ...13 8. PCB LAYOUT ...106 3.1 Transceiver ...13 3.2 Power Amplifier Module ...19 9. ENGINEERING MODE ...109 3.3 13 MHz Clock ... 20 9.1 BB Test [MENU 1] ...110 3.4 Power Supplies of RF circuits ...20 9.2 RF Test [MENU 2] ...111 3.5 Digital Main Processor ...22 9.3 MF mode [MENU 3]...112 3.6 Analog Main & Power 9.4 Trace option [MENU 4] ...113 Management Processor ...28 9.5 Call timer [MENU 5] ...113 3.7 Display Interface ... 38 9.6 Fact. Reset [MENU 6] ...113 3.8 Radio Interface ...40 9.7 S/W version [MENU 7] ...113 3.9 Keypad Switches and Scanning ... 41 3.10 Microphone ...42 10. STAND ALONE TEST...114 3.11 Main Speaker ... 42 10.1 Introduction ...114 3.12 Headset interface ...43 10.2 Setting Method...114 3.13 Key Back-light Illumination ... 44 10.3 Means of Test ...115 3.14 Vibrator ...45 11. AUTO CALIBRATION ...117 4. TROUBLE SHOOTING