Siemens SL10 Bedienerhandbuch

Information and Communication Products

Communication Devices

SL10

Level 2.5

Repair Documentation

V 1.3

V1.3 Page 1 of 31 ICP CD ST

D. Schnoor

08/98

Information and Communication Products

Communication Devices

Table of Contents

1 INTRODUCTION................................................................................................................................................3

2 TCXO

...................................................................................................................................................................................4

3 FUSE 1A

...................................................................................................................................................................................9

4 CONNECTOR X1 - LOWER MMI

.................................................................................................................................................................................13

5 CONNECTOR X2 - UPPER MMI + FLEXIBLE CABLE

.................................................................................................................................................................................18

6 RINGER

.................................................................................................................................................................................24

31ΜH COIL

.................................................................................................................................................................................2

8 FLEXIBLE CABLE MICROPHONE

.................................................................................................................................................................................32

V1.3 Page 2 of 31 ICP CD ST

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Information and Communication Products

Communication Devices

1 Introduction

This manual is intended to hel you carry out SL10 re airs on level 2.5, meaning limited

com onent re airs. Failure highlights are documented and should be re aired in the local

worksho s.

It must be noted that all re airs have to be carried out in an environment set u according to

the ESD (Electrostatic Discharge Sensitive Devices) regulations defined in international

standards.

If you have any questions regarding the re air rocedures or s are arts do not hesitate to

contact our technical su ort team in Kam -Lintfort, Germany:

Tel.: +49 2842 95 4666

Fax: +49 2842 95 4302

e-mail: dominik.schnoor@klf.siemens.de

V1.3 Page 3 of 31 ICP CD ST

D. Schnoor

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Information and Communication Products

Communication Devices

2 TCXO

2.1 Affected Units

2.1.1 Type SL10

2.1.2 Affected IMEIs / Date Codes All / All

2.1.3 Affected SW-Versions All

2.1.4 Fault Code for LSO reporting 3TCX

2.2 Fault Description

2.2.1 Fault Symptoms for customers

Network Search

Handset not logging into network

2.2.2 Fault Symptom on GSM-Tester

Frequency error in synchronized mode >90 Hz

No location u date ossible

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Information and Communication Products

Communication Devices

The TCXO (Tem erature Com ensated Crystal Oscillator) is res onsible for generating the

13 MHz reference frequency of the handset.

If it is defective, the handset cannot synchronize to the base station anymore.

2.3 Priority

........ Mandatory

........ Re air

........ O tional

........ Not Yet Defined

2.4 Repair Documentation

2.4.1 Description of procedure

2.4.1.1 Diagnosis

Check the out ut frequency of the TCXO using the level-2 testing

rogram for SL10.

Set the „Simulator“ o tion in the S611.INI file to 0 and restart

the rogram. Start the test. When the rogram says „Check ower and

hase of external antenna with your GSM-Tester“, switch the CMD to

„LOCAL“ mode and enter the „MODULE TEST“.

On the CMD dis lay you can see the frequency error of the handset.

(Make sure that the CMD is on channel 124, ower level 5!)

If the frequency error is higher than 2kHz, the TCXO has to be

re laced.

2.4.1.2 Repair by component change

Use hot air blower to remove defective TCXO.

Avoid excessive heat!

Watch surrounding com onents!

Resolder new TCXO afterwards.

2.4.1.3 Repair by SW-Booting

Not ossible!

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Information and Communication Products

Communication Devices

2.4.1.4 Test

Retest handset after re air as described above.

The frequency error must now be < 2kHz.

2.4.2 List of needed material

2.4.2.1 Components

TCXO

Part-Number: L36145-G300-Y17

2.4.2.2 Jigs and Tools

Hot Air Blower

Soldering Iron

2.4.2.3 Special Tools

None

2.4.2.4 Working materials

Desolder Wick / Braid

Solder

V1.3 Page 6 of 31 ICP CD ST

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Information and Communication Products

Communication Devices

2.4.3 Drawings

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Figure 1 SL10 Board TCXO Side

Information and Communication Products

Communication Devices

V1.3 Page 8 of 31 ICP CD ST

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Figure 2 TCXO (Z601) Placement (Top View)

Information and Communication Products

Communication Devices

3 Fuse 1A

3.1 Affected Units

3.1.1 Type SL10

3.1.2 Affected IMEIs / Date Codes All / All

3.1.3 Affected SW-Versions All

3.1.4 Fault Code for LSO reporting 3FU1

3.2 Fault Description

3.2.1 Fault Symptoms for customers

Battery charging not ossible

3.2.2 Fault Symptom on GSM-Tester

This fault cannot be detected with a GSM-Tester

3.3 Priority

........ Mandatory

........ Re air

........ O tional

........ Not Yet Defined

V1.3 Page 9 of 31 ICP CD ST

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08/98

Information and Communication Products

Communication Devices

3.4 Repair Documentation

3.4.1 Description of procedure

3.4.1.1 Diagnosis

Check the status of the fuse by measuring its resistance with

a multimeter. The fuse is defective if the resistance is higher than 10

ohms.

3.4.1.2 Repair by component change

Use soldering iron to remove defective fuse.

Avoid excessive heat!

Watch surrounding com onents!

Resolder new fuse afterwards.

3.4.1.3 Repair by SW-Booting

Not ossible!

3.4.1.4 Test

Retest handset after re air as described above.

The resistance must now be close to zero.

V1.3 Page 10 of 31 ICP CD ST

D. Schnoor

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