- 5 -
1. INTRODUCTION ...............................7
1.1 Purpose .................................................. 7
1.2 Regulatory Information............................ 7
1.3 ABBREVIATION ..................................... 9
2. PERFORMANCE .............................11
2.1 H/W Features.........................................11
2.2 Technical specification...........................12
3. TECHNICAL BRIEF ........................19
3.1 KE770 Component Block diagram.........20
3.2 Baseband Processor (BBP)
Introduction ............................................21
3.3. Power management IC .........................32
3.4. Power ON/OFF .....................................38
3.5. SIM interface.........................................39
3.6. Memory .................................................40
3.7. LCD Display ..........................................41
3.8. Keypad Switching & Scanning ..............42
3.9. Keypad back-light illumination ..............43
3.10. LCD back light illumination..................43
3.11 Battery current consumption monitor ...45
3.12 JTAG & ETM interface connector ........45
3.13. Audio...................................................46
3.14. Battery charging/ USB charging circuit49
3.15. BLUETOOTH ......................................50
3.16. Micro SD external memory card slot...55
3.17. 18pin Multi Media Interface connector 57
3.18. General Description ............................59
3.19. Receiver part.......................................61
3.20. Transmitter part...................................62
3.21. RF synthesizer ....................................63
3.22. VCTCXO .............................................63
3.23. Front End Module control....................64
3.24. Power Amplifier Module ......................65
4. PCB layout......................................66
4.1 Main & Sub PCB component
placement ..............................................66
5. Trouble shooting............................68
5.1 Trouble shooting test setup....................68
5.2 Power on Trouble...................................69
5.3 Charging trouble ....................................72
5.4 LCD display trouble................................75
5.5 Camera Trouble .....................................76
5.6 Receiver & Speaker trouble ...................78
5.7 Microphone trouble ................................80
5.8 Vibrator trouble ......................................82
5.9 Keypad back light trouble.......................84
5.10 SIM card trouble...................................85
5.11 MicroSD trouble ...................................87
5.12 RF PART TROUBLESHOOTING ........89
6. Download & S/W upgrade.................98
6.1 S/W download setup ..............................98
6.2 Download program user guide...............99
7. CIRCUIT DIAGRAM ......................107
8. PCB LAYOUT ................................112
9. RF Calibration...............................117
9.1 Test Equipment Setup .........................117
9.2 Calibration Steps..................................117
10. Stand-alone Test ........................121
10.1 Test Program Setting .........................121
11. ENGINEERING MODE ................124
12. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 125
12.1 Exploded View .................................. 125
12.2 Replacement Parts ............................127
12.3 Accessory ......................................... 143
Table Of Contents
Содержание KE 770
Страница 1: ...Service Manual Model KE770 Service Manual KE770 Date April 2007 Issue 1 0 ...
Страница 3: ... 4 ...
Страница 5: ... 6 ...
Страница 49: ...3 TECHNICAL BRIEF 50 3 15 BLUETOOTH Figure 22 BLUETOOTH Functional block diagram ...
Страница 57: ...3 TECHNICAL BRIEF 58 RF Block Diagram III 2 RF circuit ...
Страница 76: ...Check Points 5 Trouble shooting 77 ...
Страница 78: ...5 Trouble shooting 79 ...
Страница 82: ...5 Trouble shooting 83 ...
Страница 87: ...5 Trouble shooting 88 ...
Страница 100: ... 101 6 Download S W upgrade Click on the blue text to select the COM port ...
Страница 101: ...6 Download S W upgrade 102 Will change the window as below ...
Страница 103: ...6 Download S W upgrade 104 During download the screen will look something like this ...
Страница 105: ... 106 ...
Страница 111: ... 112 8 PCB LAYOUT ...
Страница 112: ... 113 8 PCB LAYOUT ...
Страница 113: ... 114 8 PCB LAYOUT ...
Страница 114: ... 115 8 PCB LAYOUT ...
Страница 115: ... 116 8 PCB LAYOUT ...
Страница 117: ...9 RF Calibration 118 9 2 3 Click SETTING Menu 9 2 4 Setup Ezlooks menu such as the following figure ...
Страница 119: ...9 RF Calibration 120 9 2 7 Select MODEL 9 2 8 Click START for RF calibration 9 2 9 RF Calibration finishes ...
Страница 121: ...10 Stand alone Test 122 4 Click Update Info for communicating Phone and Test Program ...
Страница 125: ... 126 ...
Страница 143: ...Note ...
Страница 144: ...Note ...