1. INTRODUCTION
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1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of this model.
1.2 Regulatory Information
A. Security
Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for example,
persons other than your company’s employees, agents, subcontractors, or person working on your
company’s behalf) can result in substantial additional charges for your telecommunications services.
System users are responsible for the security of own system. There are may be risks of toll fraud
associated with your telecommunications system. System users are responsible for programming and
configuring the equipment to prevent unauthorized use. The manufacturer does not warrant that this
product is immune from the above case but will prevent unauthorized use of common-carrier
telecommunication service of facilities accessed through or connected to it. The manufacturer will not
be responsible for any charges that result from such unauthorized use.
B. Incidence of Harm
If a telephone company determines that the equipment provided to customer is faulty and possibly
causing harm or interruption in service to the telephone network, it should disconnect telephone
service until repair can be done. A telephone company may temporarily disconnect service as long as
repair is not done.
C. Changes in Service
A local telephone company may make changes in its communications facilities or procedure. If these
changes could reasonably be expected to affect the use of the phones or compatibility with the
network, the telephone company is required to give advanced written notice to the user, allowing the
user to take appropriate steps to maintain telephone service.
D. Maintenance Limitations
Maintenance limitations on the phones must be performed only by the manufacturer or its authorized
agent. The user may not make any changes and/or repairs expect as specifically noted in this manual.
Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system
and may void any remaining warranty.
1. INTRODUCTION
Содержание U8120
Страница 1: ...Service Manual Model U8120 Service Manual U8120 P N MMBD0035201 Date july 2004 Issue 1 0 ...
Страница 49: ...3 TECHNICAL BRIEF 50 3 3 LCD Module Figure LCD Module Block Diagram Figure LCD Module Main Sub LCD ...
Страница 52: ...3 TECHNICAL BRIEF 53 Figure Audio Section scheme ...
Страница 62: ...3 TECHNICAL BRIEF 63 Figure TJATTE2 Block Diagram ...
Страница 95: ...4 TROUBLE SHOOTING 96 4 5 Camera Trouble Camera control signals are generated by Marita ...
Страница 96: ...4 TROUBLE SHOOTING 97 Camera control signals are generated by Marita ...
Страница 97: ...4 TROUBLE SHOOTING 98 4 6 Main LCD Trouble LCD control signals are generated by Marita ...
Страница 98: ...4 TROUBLE SHOOTING 99 4 7 Sub LCD Trouble ...
Страница 99: ...4 TROUBLE SHOOTING 100 4 8 Keypad Backlight Trouble ...
Страница 100: ...4 TROUBLE SHOOTING 101 ...
Страница 101: ...4 TROUBLE SHOOTING 102 4 9 Folder ON OFF Trouble ...
Страница 103: ...4 TROUBLE SHOOTING 104 4 10 Camera Detection Trouble ...
Страница 104: ...4 TROUBLE SHOOTING 105 ...
Страница 105: ...4 TROUBLE SHOOTING 106 4 11 Camera Flash Trouble ...
Страница 106: ...4 TROUBLE SHOOTING 107 ...
Страница 109: ...4 TROUBLE SHOOTING 110 1 R2619 3 CN963 1 21 40 20 2 Pin 38 39 ...
Страница 110: ...4 TROUBLE SHOOTING 111 1 2 Measured 1khz Sine Wave Signal 3 Measured 1khz Sine Wave Signal ...
Страница 113: ...4 TROUBLE SHOOTING 114 1 C2604 2 R2607 N2603 3 R2621 CN963 1 21 40 20 4 Pin 4 5 ...
Страница 114: ...4 TROUBLE SHOOTING 115 5 Measured 1khz Sine Wave Signal ...
Страница 117: ...4 TROUBLE SHOOTING 118 1 C2616 2 3 C2617 C2615 ...
Страница 118: ...4 TROUBLE SHOOTING 119 2 Measured Some Noise Signal ...
Страница 121: ...4 TROUBLE SHOOTING 122 1 R3381 3 R2613 4 5 7 8 6 2 C2619 C2611 C2612 R3397 X2602 C2613 8 C2610 ...
Страница 124: ...4 TROUBLE SHOOTING 125 Figure 15 Main Board I O connector and FET ...
Страница 140: ...4 TROUBLE SHOOTING 141 ...
Страница 152: ...4 TROUBLE SHOOTING 153 Figure 4 30 Connection for Checking Control Signal ...
Страница 155: ...4 TROUBLE SHOOTING 156 Figure 4 32 Connection for Checking RF TX Level ...
Страница 156: ...4 TROUBLE SHOOTING 157 To verify that the phone fulfils requirements on maximum output power ...
Страница 162: ...4 TROUBLE SHOOTING 163 Figure 4 36 RX I Q signal ...
Страница 164: ...4 TROUBLE SHOOTING 165 ...
Страница 169: ...4 21 5 Checking RF Tx Path A GSM Tx path Level 4 TROUBLE SHOOTING 170 Figure 4 40 GSM DCS Tx Path Level ...
Страница 170: ...4 TROUBLE SHOOTING 171 N1300 5 1 5 Figure 4 41 Test Point of GSM DCS Tx path ...
Страница 185: ...6 DISASSEMBLY INSTRUCTION 186 6 DISASSEMBLY INSTRUCTION ...
Страница 186: ...6 DISASSEMBLY INSTRUCTION 187 ...
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Страница 192: ...6 DISASSEMBLY INSTRUCTION 193 ...
Страница 196: ...7 DOWNLOAD 197 U81X0 Download 3 Phone Model Selection 1 Press Button for Model 2 Select Model to download images ...
Страница 204: ...7 DOWNLOAD 205 U81X0 Download 11 Connect Download While Downloading After Downloading finished ...
Страница 230: ...8 CALIBRATION 231 Figure 8 11 Production Loader Downloading Figure 8 12 ITP Start Complete Window ...
Страница 232: ...8 CALIBRATION 233 Figure 8 14 Calibration FAIL Message Window Figure 8 15 Calibration Result from OUTPUT Tab View ...
Страница 233: ...8 CALIBRATION 234 Figure 8 16 Calibration Result from STATUS Tab View ...
Страница 243: ... 244 10 PCB LAYOUT ...
Страница 244: ... 245 10 PCB LAYOUT ...
Страница 245: ... 246 10 PCB LAYOUT ...
Страница 246: ... 247 10 PCB LAYOUT ...
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Страница 271: ...Memo 272 ...