Siemens ME45, S45, S46 Service Manual
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Page 1 of 23
ICM MP CC S T
S46
Company Confidential
Copyright 2002© Siemens AG
02/02
Mobile Phones
S46
Level 2.5
Repair Documentation
V 1.0
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ICM MP CC S T
S46
Company Confidential
Copyright 2002© Siemens AG
02/02
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Content of Training
1 Introduction ..................................................................................................................... 3
2 I/O Connector (Lumberg) ................................................................................................ 4
3 Keypad Connector .......................................................................................................... 8
4 Antenna Connector ........................................................................................................14
5 IrDA Interface .................................................................................................................18
6 Keypad LEDs ................................................................................................ .................21
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ICM MP CC S T
S46
Company Confidential
Copyright 2002© Siemens AG
02/02
Mobile Phones
1 Introduction
The S46 is a four-mode phone, able to operate in TDMA 800, TDMA 1900, GSM 1900 and
EGSM 900 mode. The EGSM 900 mode is not supported in U.S.A and so the phone will
not operate in this mode outside EGSM 900 coverage.
Partnumber on IMEI label:
S46: S30880-S5450-#xxx
,while # may be any letter (A-Z) and xxx may be any number from 100, 101, 102....
This manual is intended to help you carry out 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 technical questions about the
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: st-support@klf.siemens.de
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ICM MP CC S T
S46
Company Confidential
Copyright 2002© Siemens AG
02/02
2 I/O Connector (Lumberg)
2.1 Affected Units
2.1.1 Type: S46
2.1.2 Affected IMEIs / Date Codes: All / All
2.1.3 Affected SW Versions: All
2.2 Fault Description
2.2.1 Fault Symptoms for customers:
- Charging problems.
- Problems with external loudspeaker or microphone
when using a car kit.
- Problems with accessories connected at the I/O -
connector.
- Problems with SW booting
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2.2.2 Fault Symptoms on GSM Tester:
This fault cannot be detected with a GSM-Tester
2.3 Priority:
Mandatory
Repair
Optional
Not Yet Defined
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ICM MP CC S T
S46
Company Confidential
Copyright 2002© Siemens AG
02/02
2.4 Repair Documentation:
2.4.1 Description of procedure:
2.4.1.1 Diagnosis:
Visually check the bottom connector. Watch for dry joints:
2.4.1.2 Repair by component change:
Use hot air blower remove defective I/O connector.
Avoid excessive heat!
Watch surrounding components!
Resolder new I/O connector afterwards.
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2.4.1.3 Repair by Software booting:
Not possible!
2.4.1.4 Test:
Retest handset after repair.
2.4.2 List of needed material:
2.4.2.1 Components:
I/O Connector S46
Part-Number: L36334-Z93-C262
2.4.2.2 Jigs and Tools:
Hot Air Blower
Soldering Iron
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ICM MP CC S T
S46
Company Confidential
Copyright 2002© Siemens AG
02/02
2.4.2.3 Special tools:
None
2.4.2.4 Working materials
Desolder Wick / Braid
Solder
2.4.3 Drawings
Figure 1: S46 board I/O connector
Figure 2: S46 I/O connector placement (top view)
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ICM MP CC S T
S46
Company Confidential
Copyright 2002© Siemens AG
02/02
Table 1: S46 Bottom Connector Pin Description
Pin
Name
IN/OU
T
Notes
1
GND
2
SB
I/O
Charger coding and charger
control.
3
POWER
I
Charging Current
4
Batt+
O
Power supply for accessories.
5
TX0
O
Serial interface
6
RX_BC
I
Serial interface
7
ZUB_CLÒCK
I/O
Clock line for accessory bus
Use as DTC In data operation
8
ZUB_DATA
I/O
Data line for accessory bus.
Use as CTS in data operation
9
GND_MIC
For external microphone
10
HF_MICRO
I
External microphone
11
EPP_EXT
O External loudspeaker
12
EPN_EXT
O External loudspeaker
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