Table Of Contents
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4. TROUBLE SHOOTING ...................74
4.1 RF Component.......................................74
4.2 SIGNAL PATH .......................................75
4.3 Checking VCXO Block ...........................76
4.4 Checking Ant. SW Module Block ...........79
4.5 Checking WCDMA Block .......................81
4.5.1 Checking VCXO Block .....................82
4.5.2 Checking Ant. SW module ...............82
4.5.3 Checking RF TX Level .....................82
4.5.4 Checking PAM Block .......................84
4.5.5 Check RF Rx Level ..........................85
4.6 Checking GSM Block .............................87
4.6.1 Checking VCO Block .......................88
4.6.2 Checking Ant. SW Module ...............90
4.6.3 Checking RF Tx level.......................90
4.6.4 Checking PAM Block .......................92
4.6.5 Checking RF Rx Block .....................93
4.7 Bluetooth RF Block ................................95
4.8 Power ON Trouble .................................98
4.9 USB Trouble ........................................100
4.10 SIM Detect Trouble ............................101
4.11 Key Sense Trouble ............................102
4.12 Camera Trouble .................................103
4.13 Main LCD Trouble..............................104
4.14 Keypad Backlight Trouble ..................106
4.15 Folder ON/OFF Trouble .....................107
4.16 Camera Direction Detection Trouble..108
4.17 Trans Flash Trouble...........................109
4.18 Audio Trouble Shooting .....................110
4.19 Charger Trouble Shooting..................120
5. DOWNLOAD .................................123
5.1 Introduction ..........................................123
5.2 Downloading Procedure.......................123
5.3 Troubleshooting Download Errors .......136
6. BLOCK DIAGRAM ........................141
6.1 BLK diagram ........................................141
6.2 GSM & WCDMA RF Block...................142
6.3 Interface Diagram ................................144
7. Circuit Diagram ............................147
8. pcb layout .....................................155
9. CALIBRATION ..............................161
9.1 HOT KIMCHI........................................161
9.1.1 Directory structure..........................161
9.1.2 Setup file (Info_Db.txt) ...................162
9.1.3 Setup file item ................................163
9.1.4 Example for setting file ..................164
9.2 How to use Hot Kimchi.........................165
9.3 HOT KIMCHI Example.........................166
10. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 169
10.1 EXPLODED VIEW ............................ 169
10.2 Replacement Parts
<Mechanic component>.................... 171
<Main component> ........................... 175
10.3 Accessory ......................................... 194
Summary of Contents for U8500
Page 1: ...Date February 2006 Issue 1 0 Service Manual Model U8500 Service Manual U8500 ...
Page 20: ...3 TECHNICAL BRIEF 21 ...
Page 32: ...3 TECHNICAL BRIEF 33 Figure 3 5 6 1 GSM PA functional block diagram ...
Page 35: ...3 TECHNICAL BRIEF 36 Figure 3 5 10 1 Bluetooth system architecture ...
Page 50: ...3 TECHNICAL BRIEF 51 Figure 3 10 3 2 1 PM6650 Functional Block Diagram ...
Page 114: ...4 TROUBLE SHOOTING 115 Loud Speaker U502 U503 Amp ...
Page 118: ...4 TROUBLE SHOOTING 119 C200 C201 for MIC serial capacitor ...
Page 121: ...4 TROUBLE SHOOTING 122 Q404 Q403 Q402 VBATT GND ...
Page 143: ...6 BLOCK DIAGRAM 144 6 3 Interface Diagram U8500 Interface Diagram ...
Page 145: ... 146 ...
Page 154: ... 155 U8500 8 PCB LAYOUT ...
Page 155: ... 156 8 PCB LAYOUT U8500 ...
Page 156: ... 157 8 PCB LAYOUT ...
Page 157: ... 158 8 PCB LAYOUT ...
Page 158: ... 159 U8500 8 PCB LAYOUT ...
Page 159: ... 160 U8500 8 PCB LAYOUT ...
Page 166: ...9 CALIBRATION 167 Click START button U8500 U8500_ver1 1 U8500 U8500 Click U8500 ...
Page 167: ... 168 ...
Page 169: ... 170 ...
Page 194: ...Note ...
Page 195: ...Note ...