Summary of Contents for U8138
Page 1: ...Service Manual Model U8138 Service Manual U8138 P N MMBD0042101 Date November 2004 Issue 1 0 ...
Page 52: ...3 TECHNICAL BRIEF 53 Figure Audio Section scheme ...
Page 62: ...3 TECHNICAL BRIEF 63 Figure TJATTE2 Block Diagram ...
Page 90: ...4 TROUBLE SHOOTING 91 4 1 Power ON Trouble 4 TROUBLE SHOOTING ...
Page 91: ...4 TROUBLE SHOOTING 92 Main Board Bottom side Main Board Top side ...
Page 92: ...4 TROUBLE SHOOTING 93 4 2 USB Trouble ...
Page 95: ...4 TROUBLE SHOOTING 96 4 5 Camera Trouble Camera control signals are generated by Marita ...
Page 96: ...4 TROUBLE SHOOTING 97 Camera control signals are generated by Marita ...
Page 97: ...4 TROUBLE SHOOTING 98 4 6 Main LCD Trouble LCD control signals are generated by Marita ...
Page 98: ...4 TROUBLE SHOOTING 99 4 7 Sub LCD Trouble ...
Page 99: ...4 TROUBLE SHOOTING 100 4 8 Keypad Backlight Trouble ...
Page 101: ...4 TROUBLE SHOOTING 102 4 9 Folder ON OFF Trouble ...
Page 102: ...4 TROUBLE SHOOTING 103 Be sure that magnet is here ...
Page 103: ...4 TROUBLE SHOOTING 104 4 10 Camera Detection Trouble ...
Page 104: ...4 TROUBLE SHOOTING 105 ...
Page 105: ...4 TROUBLE SHOOTING 106 4 11 Camera Flash Trouble ...
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Page 110: ...4 TROUBLE SHOOTING 111 Measured 1khz Sine Wave Signal Measured 1khz Sine Wave Signal ...
Page 112: ...4 TROUBLE SHOOTING 113 ...
Page 113: ...4 TROUBLE SHOOTING 114 ...
Page 114: ...4 TROUBLE SHOOTING 115 Measured 1khz Sine Wave Signal ...
Page 116: ...4 TROUBLE SHOOTING 117 ...
Page 117: ...4 TROUBLE SHOOTING 118 ...
Page 118: ...4 TROUBLE SHOOTING 119 Measured Some Noise Signal ...
Page 119: ...4 TROUBLE SHOOTING 120 D Headset Receiver Voice call Video Telephony MP3 ...
Page 120: ...4 TROUBLE SHOOTING 121 E Headset MIC Voice call Video Telephony ...
Page 121: ...4 TROUBLE SHOOTING 122 ...
Page 123: ...4 TROUBLE SHOOTING 124 Figure 14 Trouble Shooting Charging ...
Page 124: ...4 TROUBLE SHOOTING 125 Figure 15 Main Board I O connector and FET ...
Page 127: ...4 TROUBLE SHOOTING 128 4 15 Procedure to check ...
Page 133: ...4 TROUBLE SHOOTING 134 Step 4 Check R1631 in WCDMA PAM block ...
Page 134: ...4 TROUBLE SHOOTING 135 Figure 4 8 Power for Radio ASIC ...
Page 140: ...4 TROUBLE SHOOTING 141 ...
Page 145: ...4 TROUBLE SHOOTING 146 A EGSM Rx Mode Figure 4 21 EGSM Rx Mode ...
Page 146: ...4 TROUBLE SHOOTING 147 B EGSM Tx Mode Figure 4 22 EGSM Tx Mode ...
Page 147: ...4 TROUBLE SHOOTING 148 C DCS Rx Mode Figure 4 23 DCS Rx Mode ...
Page 148: ...4 TROUBLE SHOOTING 149 D DCS Tx Mode Figure 4 24 DCS Tx Mode ...
Page 149: ...4 TROUBLE SHOOTING 150 E WCDMA Mode Figure 4 25 WCDMA Mode ...
Page 150: ...4 TROUBLE SHOOTING 151 4 20 Checking WCDMA Block ...
Page 152: ...4 TROUBLE SHOOTING 153 Figure 4 30 Connection for Checking Control Signal ...
Page 153: ...4 TROUBLE SHOOTING 154 Figure 4 30 Control signal ...
Page 154: ...4 TROUBLE SHOOTING 155 4 20 4 Checking RF TX Level Figure 4 31 Test Point RF TX Level ...
Page 155: ...4 TROUBLE SHOOTING 156 Figure 4 32 Connection for Checking RF TX Level ...
Page 156: ...4 TROUBLE SHOOTING 157 To verify that the phone fulfils requirements on maximum output power ...
Page 162: ...4 TROUBLE SHOOTING 163 Figure 4 36 RX I Q signal ...
Page 164: ...4 TROUBLE SHOOTING 165 ...
Page 165: ...4 21 Checking GSM Block 4 TROUBLE SHOOTING 166 ...
Page 168: ...4 TROUBLE SHOOTING 169 ...
Page 170: ...4 TROUBLE SHOOTING 171 Figure 4 41 Test Point of GSM DCS Tx path ...
Page 173: ...D GSM PAM Check 4 TROUBLE SHOOTING 174 Figure 4 44 GSM DCS Tx control signal ...
Page 178: ...4 TROUBLE SHOOTING 179 C GSM RF Level Check Figure 4 49 GSM DCS Rx Path ...
Page 179: ...5 1 GSM WCDMA RF Block 5 BLOCK DIAGRAM 180 5 BLOCK DIAGRAM Figure 5 1 RF Block Diagram ...
Page 181: ...5 2 Interface Diagram 5 BLOCK DIAGRAM 182 Figure 5 2 Interface Diagram 1 ...
Page 183: ...5 3 Detailed Interface Signal 5 BLOCK DIAGRAM 184 Figure 5 3 Interface Diagram 2 ...
Page 184: ...5 BLOCK DIAGRAM 185 Figure 5 4 Power Diagram ...
Page 185: ...6 DISASSEMBLY INSTRUCTION 186 6 DISASSEMBLY INSTRUCTION ...
Page 186: ...6 DISASSEMBLY INSTRUCTION 187 ...
Page 187: ...6 DISASSEMBLY INSTRUCTION 188 ...
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Page 192: ...6 DISASSEMBLY INSTRUCTION 193 ...
Page 233: ...8 CALIBRATION 234 Figure 8 16 Calibration Result from STATUS Tab View ...
Page 243: ... 244 10 PCB LAYOUT ...
Page 244: ... 245 10 PCB LAYOUT ...
Page 245: ... 246 10 PCB LAYOUT ...
Page 246: ... 247 10 PCB LAYOUT ...
Page 247: ... 248 11 EXPLODED VIEW REPLACEMENT PART LIST 11 1 EXPLODED VIEW ...
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Page 271: ...Memo 272 ...