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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 commoncarrier 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 net
work, 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
1. INTRODUCTION
Содержание U970
Страница 1: ...Date April 2007 Issue 1 0 Service Manual Model U970 KU970 Service Manual U970 KU970 ...
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 Fig 1 2 RTR6275 RX feature ...
Страница 23: ...3 TECHNICAL BRIEF 24 Figure 1 4 RTR6275 IC functional block diagram WCDMA_2100_TX WCDMA_2100_RX ...
Страница 28: ...3 TECHNICAL BRIEF 29 Figure1 7 PM6650 Block Diagram ...
Страница 41: ...3 TECHNICAL BRIEF 42 Table 1 1 Summary of MSM6280 device features ...
Страница 45: ...3 TECHNICAL BRIEF 46 Figure 1 1 PM6650 Functional Block Diagram ...
Страница 76: ...4 TROUBLE SHOOTING 77 4 1 RF CRF Component TOP SIDE BOTTOM SIDE 4 TROUBLE SHOOTING ...
Страница 81: ...4 TROUBLE SHOOTING 82 Check C412 of PMIC U400 Check R214 of MSM U200 ...
Страница 83: ...4 TROUBLE SHOOTING 84 Logic Table of the FEM ...
Страница 89: ...4 TROUBLE SHOOTING 90 4 7 Checking GSM Block ...
Страница 91: ...4 7 3 Checking RF Tx level 4 TROUBLE SHOOTING 92 ...
Страница 94: ...4 TROUBLE SHOOTING 95 ...
Страница 100: ...4 TROUBLE SHOOTING 101 R403 Q402 Q401 Q400 Charging part Main PCB Front ...
Страница 103: ...4 TROUBLE SHOOTING 104 Q400 X 200 USB part 1 Main PCB Front U503 USB part 2 Main PCB Rear ...
Страница 112: ...4 TROUBLE SHOOTING 113 CN601 CN701 CN700 ...
Страница 115: ...4 TROUBLE SHOOTING 116 C500 C501 R501 R502 ...
Страница 117: ...4 TROUBLE SHOOTING 118 SPK Audio Amplifier Analog Switch ...
Страница 119: ...4 TROUBLE SHOOTING 120 MIC800 R507 C520 ...
Страница 121: ...4 TROUBLE SHOOTING 122 R303 Ear_Sense_N C210 MIC Input ...
Страница 141: ...5 DOWNLOAD 142 ...
Страница 147: ...5 DOWNLOAD 148 Read IMEI BT address from UE 2 Step 4 Check IMEI and Bluetooth address ...
Страница 158: ...6 BLOCK DIAGRAM 159 Table 2 1 RF Block Component ...
Страница 163: ...6 BLOCK DIAGRAM 164 6 2 4 Placement Top Side ...
Страница 164: ...6 BLOCK DIAGRAM 165 Bottom Side ...
Страница 165: ... 166 ...
Страница 175: ... 176 8 PCB LAYOUT U970 KU970 ...
Страница 176: ... 177 8 PCB LAYOUT U970 KU970 ...
Страница 177: ... 178 8 PCB LAYOUT U970 KU970 ...
Страница 178: ... 179 8 PCB LAYOUT U970 KU970 ...
Страница 179: ... 180 8 PCB LAYOUT ...
Страница 180: ... 181 8 PCB LAYOUT ...
Страница 181: ... 182 ...
Страница 187: ... 188 ...
Страница 189: ... 190 ...
Страница 209: ...Note ...
Страница 210: ...Note ...