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DTX-3 Series Transceivers
Disassembly and Troubleshooting
Issue 1 4/03 |
Nokia Corporation |
DTX-3 |
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Disassembly and Troubleshooting |
CCS Technical Documentation |
Table of Contents |
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Page No |
Introduction .................................................................................................................... |
3 |
Disassembly, DTX-3 ................................................................................................... |
3 |
Troubleshooting ............................................................................................................. |
3 |
General ......................................................................................................................... |
3 |
Equipment needed ....................................................................................................... |
4 |
Software needed ........................................................................................................... |
4 |
Visual overlook ............................................................................................................ |
4 |
Initial connections ........................................................................................................ |
5 |
Troubleshooting flowchart for Nokia 32 and DTM-3 ................................................. |
6 |
Troubleshooting flowchart for DTX-3 ........................................................................ |
7 |
Testing with WinTesla service software ................................................................... |
8 |
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Disassembly and Troubleshooting |
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Introduction
The purpose of this document is to help in hardware troubleshooting of the Nokia 32 PBX Connectivity Terminal.
TME-3/TME-4 troubleshooting is described in the TME-3/TME-4 manual.
DTX-3 module is not designed to be repaired, except for the Application Interface Connector.
Disassembly, DTX-3
Figure 1: DTX-3 disassembly
Issue 1 4/03 |
Nokia Corporation |
Page 3 |
DTX-3 |
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Disassembly and Troubleshooting |
CCS Technical Documentation |
Troubleshooting
General
The purpose of this document is to help the service point to solve which part of the radio is faulty. The service policy with the Nokia 32 connectivity terminal is, that only the TME- 3/TME-4 will be repaired.
Both TME-3 and DTX-3 covers can be replaced if necessary.
Equipment needed:
•SIM card without PIN query
•ACW-5 Adapter
•ACW-5 mains cable
•ACW-5 power cable
•A landline telephone
•A Nokia 32 (including TME-3/TME-4 and DTX-3 modules)
•T-piece
•DKT-7A service cable
•CA-15DS audio test cable
•SCS-24 audio test cable
•Personal computer (PC)
Software needed:
•Wintesla sw for DTX-3
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Disassembly and Troubleshooting |
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Visual overlook
The LED indicators are split into two parts:
Figure 2: LED indicators
LED indicators 2&3 are used to tell in which mode the line adapter is at the moment. LED indicator 1 is used to tell the state of the embedded GSM terminal. At least one LED indicator from both parts should be on or blinking. If e.g. both LED indicator 2 and LED indicator 3 are off, the fault most probably is in the application module.
Initial connections:
1.Insert SIM card to TME-3/TME-4.
2.Attach DTX-3 to TME-3/TME-4.
3.Connect CA-15DS cable between one input port of T-piece and EXT connector.
4.Connect SCS-24 cable between the other input port of T-piece and TRUNK connector.
5.Connect cable DKT-7A between output port of T-piece and PC.
6.Connect power cable between DTX-3 and ACW-5.
7.Connect mains cable between ACW-5 and mains plug. See the instructions on the bottom side of the adapter.
8.Choose Testing -> Self Tests... from Wintesla.
Issue 1 4/03 |
Nokia Corporation |
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