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 this phone 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 this model 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 F2400
Страница 3: ......
Страница 27: ...3 TECHNICAL BRIEF 28 Figure 4 SYSTEM INTERCONNECTION OF AD6527 6527B EXTERNAL INTERFACE ...
Страница 29: ...AD6537B 3 TECHNICAL BRIEF 30 Figure 5 AD6537B FUNCTION BLOCK DIAGRAM ...
Страница 39: ...3 TECHNICAL BRIEF 40 Figure 16 AUDIO LOGIC IN AD6537B ...
Страница 43: ...4 TROUBLE SHOOTING 44 4 1 RX Trouble 4 TROUBLE SHOOTING Figure 4 1 Test Points Checking Flow ...
Страница 44: ...4 TROUBLE SHOOTING 45 1 Checking Regulator Circuit Figure 4 2 Test Points Circuit Diagram Checking Flow ...
Страница 47: ...4 TROUBLE SHOOTING 48 Checking Flow ...
Страница 48: ...4 TROUBLE SHOOTING 49 5 Checking SAW Filter Circuit Test Points Checking Flow Circuit Diagram ...
Страница 49: ...4 TROUBLE SHOOTING 50 6 Checking RX IQ Test Points Circuit Diagram Waveform Checking Flow ...
Страница 50: ...4 TROUBLE SHOOTING 51 4 2 TX Trouble Test Points Checking Flow ...
Страница 52: ...4 TROUBLE SHOOTING 53 2 Checking VCTCXO Circuit Test Points Circuit Diagram Waveform Checking Flow ...
Страница 54: ...4 TROUBLE SHOOTING 55 3 Checking Ant SW Mobile SW ...
Страница 56: ...4 TROUBLE SHOOTING 57 5 Checking TX IQ Test Points Waveform Circuit Diagram Checking Flow ...
Страница 57: ...4 TROUBLE SHOOTING 58 4 3 Power On Trouble ...
Страница 58: ...4 TROUBLE SHOOTING 59 C126 C124 D101 R112 C119 C101 U101 R399 ...
Страница 59: ...4 TROUBLE SHOOTING 60 4 4 Charging Trouble Q101 R120 D102 CN202 4 5 PIN ...
Страница 60: ...4 TROUBLE SHOOTING 61 ...
Страница 61: ...4 TROUBLE SHOOTING 62 4 5 LCD Trouble CN601 9 23 PIN C401 U402 C417 ...
Страница 62: ...4 TROUBLE SHOOTING 63 ...
Страница 63: ...4 TROUBLE SHOOTING 64 4 6 Receiver Trouble R105 R104 ...
Страница 64: ...4 TROUBLE SHOOTING 65 4 7 Speaker Trouble R213 R214 U204 C215 C216 C217 R219 R218 U203 ...
Страница 65: ...4 TROUBLE SHOOTING 66 C211 C219 C217 C216 C217 C216 ...
Страница 66: ...4 TROUBLE SHOOTING 67 4 8 MIC Trouble C108 C226 R232 R231 C225 C223 R235 R234 ...
Страница 67: ...4 TROUBLE SHOOTING 68 ...
Страница 68: ...4 TROUBLE SHOOTING 69 4 9 Vibrator Trouble R1101 R1100 Q402 D202 1 ...
Страница 69: ...4 TROUBLE SHOOTING 70 ...
Страница 70: ...4 TROUBLE SHOOTING 71 4 10 Key Backlight LED Trouble ...
Страница 71: ...4 TROUBLE SHOOTING 72 ...
Страница 72: ...4 TROUBLE SHOOTING 73 4 11 SIM Detect Trouble ...
Страница 73: ...4 TROUBLE SHOOTING 74 4 12 Ear Jack Trouble U201 C201 R201 R207 R208 J201 R209 ...
Страница 74: ...4 TROUBLE SHOOTING 75 ...
Страница 75: ...4 TROUBLE SHOOTING 76 ...
Страница 78: ...4 TROUBLE SHOOTING 79 ...
Страница 79: ...4 TROUBLE SHOOTING 80 4 14 RTC Trouble X101 R113 ...
Страница 82: ...4 TROUBLE SHOOTING 83 ...
Страница 95: ...Note 96 ...
Страница 102: ... 103 8 PCB LAYOUT ...
Страница 103: ... 104 8 PCB LAYOUT ...
Страница 109: ......