Siemens SL10 Service Manual
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
7 31ΜH COIL
.................................................................................................................................................................................27
8 FLEXIBLE CABLE MICROPHONE
.................................................................................................................................................................................32
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Information and Communication Products
Communication Devices
1Introduction
This manual is intended to help you carry out SL10 repairs on level 2.5, meaning limited
component repairs. Failure highlights are documented and should be repaired in the local
workshops.
It must be noted that all repairs have to be carried out in an environment set up according to
the ESD (Electrostatic Discharge Sensitive Devices) regulations defined in international
standards.
If you have any questions regarding the repair procedures or spare parts do not hesitate to
contact our technical support team in Kamp-Lintfort, Germany:
Tel.: +49 2842 95 4666
Fax: +49 2842 95 4302
e-mail: dominik.schnoor@klf.siemens.de
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Information and Communication Products
Communication Devices
2TCXO
2.1Affected Units
2.1.1Type: SL10
2.1.2Affected IMEIs / Date Codes: All / All
2.1.3Affected SW-Versions: All
2.1.4Fault Code for LSO reporting: 3TCX
2.2Fault Description
2.2.1Fault Symptoms for customers:
Network Search
Handset not logging into network
2.2.2Fault Symptom on GSM-Tester:
Frequency error in synchronized mode >90 Hz
No location update possible
The TCXO (Temperature Compensated Crystal Oscillator) is responsible for generating the
13 MHz reference frequency of the handset.
If it is defective, the handset cannot synchronize to the base station anymore.
2.3Priority:
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Information and Communication Products
Communication Devices
........ Mandatory
........ Repair
........ Optional
........ Not Yet Defined
2.4Repair Documentation
2.4.1Description of procedure:
2.4.1.1Diagnosis
Check the output frequency of the TCXO using the level-2 testing
program for SL10.
Set the „Simulator“ option in the S611.INI file to 0 and restart
the program. Start the test. When the program says „Check power and
phase of external antenna with your GSM-Tester“, switch the CMD to
„LOCAL“ mode and enter the „MODULE TEST“.
On the CMD display you can see the frequency error of the handset.
(Make sure that the CMD is on channel 124, power level 5!)
If the frequency error is higher than 2kHz, the TCXO has to be
replaced.
2.4.1.2Repair by component change
Use hot air blower to remove defective TCXO.
Avoid excessive heat!
Watch surrounding components!
Resolder new TCXO afterwards.
2.4.1.3Repair by SW-Booting
Not possible!
2.4.1.4Test
Retest handset after repair as described above.
The frequency error must now be < 2kHz.
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Information and Communication Products
Communication Devices
2.4.2List of needed material
2.4.2.1Components
TCXO
Part-Number: L36145-G300-Y17
2.4.2.2 Jigs and Tools
Hot Air Blower
Soldering Iron
2.4.2.3Special Tools
None
2.4.2.4Working materials
Desolder Wick / Braid
Solder
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Information and Communication Products
Communication Devices
2.4.3Drawings
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Figure 1: SL10 Board TCXO Side
Figure 2: TCXO (Z601) Placement (Top View)
Information and Communication Products
Communication Devices
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Information and Communication Products
Communication Devices
3Fuse 1A
3.1Affected Units
3.1.1Type: SL10
3.1.2Affected IMEIs / Date Codes: All / All
3.1.3Affected SW-Versions: All
3.1.4Fault Code for LSO reporting: 3FU1
3.2Fault Description
3.2.1Fault Symptoms for customers:
Battery charging not possible
3.2.2Fault Symptom on GSM-Tester:
This fault cannot be detected with a GSM-Tester
3.3Priority:
........ Mandatory
........ Repair
........ Optional
........ Not Yet Defined
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Information and Communication Products
Communication Devices
3.4Repair Documentation
3.4.1Description of procedure:
3.4.1.1Diagnosis
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.
3.4.1.2Repair by component change
Use soldering iron to remove defective fuse.
Avoid excessive heat!
Watch surrounding components!
Resolder new fuse afterwards.
3.4.1.3Repair by SW-Booting
Not possible!
3.4.1.4Test
Retest handset after repair as described above.
The resistance must now be close to zero.
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Information and Communication Products
Communication Devices
3.4.2List of needed material
3.4.2.1Components
Fuse
Part-Number: L36145-A820-Y7
3.4.2.2Jigs and Tools
Soldering Iron
3.4.2.3Special Tools
Multimeter
3.4.2.4Working materials
Desolder Wick / Braid
Solder
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