Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG KP105, KP-106B LG KP105, KP-106B
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Service Manual
Internal Use Only
Service Manual
KP105/106b
Model : KP105/106b
Date: March, 2008 / Issue 1.0
Table Of Contents
1. INTRODUCTION ...............................5 4.13 Headphone Trouble .............................75
1.1 Purpose .................................................. 5 4.14 Charging Trouble .................................77
1.2 Regulatory Information............................ 5 4.15 FM Radio Trouble ................................79
2. PERFORMANCE...............................7 5. DOWNLOAD.......................................82
2.1 H/W Features...........................................7 5.1 Download Setup.....................................82
2.2 S/W Features ...........................................8 5.2 Download Process .................................83
3. TECHNICAL BRIEF ........................14 6. BLOCK DIAGRAM ..........................88
3.1 Digital Main Processor(PMB7880).........14 7. Circuit Diagram ..............................89
3.2 Power Amplifier Modul(SKY77518) .......22
3.3 26 MHz Clock(DCXO)............................24 8. BGA IC PIN Check..........................93
3.4 RTC(32.768KHz Crystal) .......................25
9. PCB LAYOUT ..................................95
3.5 LCD Interface(3-wire SPI interface) .......26
3.6 SIM Card Interface.................................28
10. ENGINEERING MODE ..................97
3.7 KEYPAD Interface .................................29
10.1 About Engineering Mode .....................97
3.8 Battery Charging Block Interface ...........30
10.2 Access Codes ......................................97
3.9 RF Interface ...........................................31
10.3 Key Operation ......................................97
3.10 Audio Interface.....................................33
10.4 Engineering Mode Menu Tree .............97
3.11 Key LED Interface................................37
3.12 Vibrator Interface .................................38 11. CALIBRATION.............................106
3.13 Memory Interface .................................39 11.1 Test Equipment Setup .......................106
3.14 Power Block Interface ..........................40 11.2 Calibration Steps................................106
3.15 FM Radio Interface ..............................42
12. STAND ALONE TEST .................111
4. TROUBLE SHOOTING ...................44 12.1 Test Program Setting .........................111
4.1 RF Trouble .............................................44 12.2 Tx Test ...............................................113
4.2 TX Trouble .............................................50 12.3 RX Test ..............................................114
4.3 Power On Trouble..................................54
4.4 SIM Card Trouble...................................56
12. EXPLODED VIEW &
4.5 Vibrator Trouble .....................................58
REPLACEMENT PART LIST ..... 115
4.6 Keypad Trouble......................................60 12.1 Exploded View .................................. 115
4.7 RTC Trouble ..........................................62 12.2 Replacement Parts ............................117
4.8 Key backlight Trouble ............................64 12.3 Accessory ..........................................126
4.9 LCD Trouble...........................................66
4.10 Microphone Trouble .............................69
4.11 Receiver Trouble..................................71
4.12 Speaker Trouble ..................................73
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