Nokia 22 Disassembly and Troubleshooting 07

Programmes After Market Services

TME-1 Series Transceivers

Disassembly and Troubleshooting

Issue 1 ãNokia Mobile Phones Ltd.

TME-1

Disassembly and Troubleshooting PAMS Technical Documentation

Table of Contents

Page No

Introduction.................................................................................................................... 3

Disassembly, TME-1 ..................................................................................................... 4

Disassembly, DTX-1 ...................................................................................................5

Troubleshooting ............................................................................................................. 6

General .........................................................................................................................6

Visual overlook ............................................................................................................6

Testing with WinTesla service software ......................................................................7

Connections in LA circuit tests and in DTMF Rx/Tx tests....................................... 7

WinTesla tests ........................................................................................................... 8

Testing of Line adapter circuits ..............................................................................8

Hook state indicator ................................................................................................8

DTMF receiving and transmitting .......................................................................10

Ringing Voltage Indicator ....................................................................................11

Connections in audio codec tests ............................................................................ 12

Audio codec test ....................................................................................................12

UI LEDs .................................................................................................................. 15

AM self test ............................................................................................................. 16

Table of Figures

Page No

Fig 1 TME-1 disassembly....................................................................................................4

Fig 2 DTX-1 Disassembly ...................................................................................................5

Fig 3 UI light indicators.......................................................................................................6

Fig 4 Line Adapter circuit test window ...............................................................................8

Fig 5 Hook on/off test window 1 ........................................................................................8

Fig 6 Hook on/off test window 2 ........................................................................................9

Fig 7 DTMF test window.....................................................................................................10

Fig 8 Audio&Line Test window..........................................................................................11

Fig 9 Audio Codec Test set-up ............................................................................................12

Fig 10 Audio codec Test window ........................................................................................13

Fig 11 ET Call Test window................................................................................................13

Fig 12 Call Test dialog box..................................................................................................14

Fig 13 UI Led Test window.................................................................................................15

Fig 14 LEDs Test dialog box...............................................................................................15

Fig 15 AM Self Test window ..............................................................................................16

Fig 16 AM Self Test dialog box ..........................................................................................16

Page 2 ãNokia Mobile Phones Ltd. Issue 1

TME-1

PAMS Technical Documentation Disassembly and Troubleshooting

Introduction

The purpose of this document is to help in hardware troubleshooting of the Nokia 22 PBX

Connectivity Terminal.

TME-1 includes the RPM-3 , troubleshooting of which is described in the RPM-1 manual.

DTX-1 module is not designed to be repaired except the Application Interface Connector.

Issue 1 ãNokia Mobile Phones Ltd. Page 3

TME-1

Disassembly and Troubleshooting PAMS Technical Documentation

Disassembly, TME-1

Figure 1: TME-1 disassembly

Page 4 ãNokia Mobile Phones Ltd. Issue 1

TME-1

PAMS Technical Documentation Disassembly and Troubleshooting

Disassembly, DTX-1

Figure 2: DTX-1 Disassembly

1. Remove the four screws and
the bottom plate.

2. Remove JP4 module.

3. Remove the pin header.

4. Remove the pin header
cover.

Issue 1 ãNokia Mobile Phones Ltd. Page 5