Siemens A52, A55, C55 Service Manual

Information and Communication Mobile

Mobile Phones

V 1.1

A55/C55

V 1.1

Page 1 of 26

Company Confidential

ICM MP CCQ GRM

04/03

Information and Communication Mobile

Mobile Phones

Table of Content

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

1

2 I/O Connector (Slim Lumberg) ........................................................................................ 4

3 Battery Connector........................................................................................................... 8

4 Antenna Connector (C55only)........................................................................................12

5 Card Reader ..................................................................................................................16

6 Keypad LEDs.................................................................................................................20

7 Display LEDs .................................................................................................................23

V 1.1

A55/C55

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Company Confidential

ICM MP CCQ GRM

04/03

Information and Communication Mobile

Mobile Phones

1 Introduction

C55 product is a dualband (GSM900 and GSM1800) handset.

This product is developed with different HW in the radio part, which can not be distinguished on the IMEI label. The HITACHI (HIT) as the INFINEON (IFX) boards have the same logic part. For all described Level 2.5 components you find a board type identification in the document as shown below.

HIT component used only in HITACHI version IFX component used only in INFINEON version HIT/IFX component used in HITACHI and INFINEON versions

Partnumber on IMEI label:

C55: S30880-S5600-#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. The documented failure highlights should be repaired in the local workshops.

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

V 1.1

A55/C55

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Company Confidential

ICM MP CCQ GRM

04/03

Information and Communication Mobile

2 I/O Connector (Slim Lumberg)

2.1 Affected Units

2.1.1 Type: C55

Mobile Phones

2.1.2 Affected IMEIs / Date Codes:

2.1.3 Affected SW Versions:

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

2.2.2 Fault Symptoms on GSM Tester:

This fault cannot be detected with a GSM-Tester

All / All

All

2.3 Priority:

¨ Mandatory þ ¨ ¨

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A55/C55

Repair Optional

Not Yet Defined

Page 4 of 26

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04/03

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.

Information and Communication Mobile

Mobile Phones

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 C55 HIT/IFX Part-Number: L36334-Z93-C303

2.4.2.2 Jigs and Tools:

Hot Air Blower Soldering Iron

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04/03

2.4.2.3 Special tools:

None

2.4.2.4 Working materials

Desolder Wick / Braid Solder

2.4.3 Drawings

Figure 1: C55 IFX board I/O connector

Information and Communication Mobile

Mobile Phones

Figure 2: C55 HIT board I/O connector

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A55/C55

Company Confidential

Page 6 of 26

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04/03

Information and Communication Mobile

Figure 3: C55 IFX/HIT I/O connector placement (top view)

Table 1: C55 IFX/HIT Bottom Connector Pin Description

Pin Name IN/OUT Notes 1 POWER I/O POWER is needed for charging

batteries and for supplying the accessories

2 GND

3 TX O Serial interface

4 RX I Serial interface

5 CTS I/O Data line for accessory bus

6 RTS I/O Use as RTS in data operation

7 DCD I/O Clock line for accessory bus

Use as DTC In data operation

8 AUDIO_L O External loudspeaker

9 AUDIO_REF mid-voltage in stereo mode refernce

to AUDIO_L and AUDIO_R in mono mode not used

10 AUDIO_R OI External loudspeaker

11 GND_MIC I GND for external microphone

Mobile Phones

12 MICP2 O External microphone

V 1.1

A55/C55

Page 7 of 26

Company Confidential

ICM MP CCQ GRM

04/03

Information and Communication Mobile

3 Battery Connector

3.1 Affected Units

3.1.1 Type: C55

Mobile Phones

3.1.2 Affected IMEIs / Date Codes:

3.1.3 Affected SW Versions:

3.2 Fault Description

3.2.1 Fault Symptoms for customers:

Mobile does not switch on. Error message “WRONG BATTERY” on display.

3.2.2 Fault Symptoms on GSM Tester:

This fault cannot be detected with a GSM-Tester.

3.3 Priority:

¨ Mandatory

All / All

All

þ ¨ ¨

V 1.1

A55/C55

Repair Optional

Not Yet Defined

Company Confidential

Page 8 of 26

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04/03

3.4 Repair Documentation:

3.4.1 Description of procedure:

3.4.1.1 Diagnosis:

Visually check the status of the Battery connector. Watch for oxidation and dry solder joints.

3.4.1.2 Repair by component change:

Use hot air blower remove defective Battery connector. Avoid excessive heat! Watch surrounding components!

Resolder new Battery connector afterwards.

Information and Communication Mobile

Mobile Phones

3.4.1.3 Repair by Software booting:

Not possible!

3.4.1.4 Test:

Retest handset after repair.

3.4.2 List of needed material:

3.4.2.1 Components:

Battery Connector C55 HIT Part-Number: L36334-Z97-C213

Battery Connector C55 IFX Part-Number: L36334-Z97-C160

3.4.2.2 Jigs and Tools:

Hot Air Blower Soldering Iron

V 1.1

A55/C55

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04/03

3.4.2.3 Special tools:

None

3.4.2.4 Working materials

Desolder Wick / Braid Soldering Iron

3.4.3 Drawings

Figure 1: C55 IFX board Battery connector

Information and Communication Mobile

Mobile Phones

V 1.1

A55/C55

Page 10 of 26

Company Confidential

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04/03

Figure 2: C55 HIT board Battery connector

Information and Communication Mobile

Mobile Phones

Figure 3: C55 IFX/HIT Battery connector placement (top view)

V 1.1

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Information and Communication Mobile

A

4 Antenna Connector (C55only)

4.1 Affected Units

4.1.1 Type: C55

Mobile Phones

4.1.2 Affected IMEIs / Date Codes:

4.1.3 Affected SW Versions:

All / All

All

4.2 Fault Description

4.2.1 Fault Symptoms for customers:

Network Search No location update possible

4.2.2 Fault Symptoms on GSM Tester:

Output power problems on the external and internal antenna No location update possible

4.2.3 Component Information:

The Antenna Connector is a mechanical switch operated by the RF plug of a car kit. Normally the RF signal goes to and comes from the internal antenna. Whenever an RF plug is plugged into the antenna connector the connection to the internal antenna is opened and the connection to the external antenna socket is made. When the antenna connector is blocked without RF plug the connection to the internal antenna is also opened. See drawing below.

From Power

mplifier/

To Receiver

To/From Internal

ntenna

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4.3 Priority:

¨ Mandatory

Information and Communication Mobile

Mobile Phones

þ ¨ ¨

Repair Optional

Not Yet Defined

4.4 Repair Documentation:

4.4.1 Description of procedure:

4.4.1.1 Diagnosis:

Check the output power of the handset with the LSO test program. Especially watch the external antenna power!

4.4.1.2 Repair by component change:

Use hot air to remove defective antenna connector. Avoid excessive heat! Watch surrounding components!!

Resolder new module afterwards

4.4.1.3 Repair by Software booting:

Not possible!

4.4.1.4 Test:

Retest handset after repair.

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4.4.2 List of needed material:

4.4.2.1 Components:

Antenna Connector C55 HIT/IFX Part-Number: L36334-Z93-C272

4.4.2.2 Jigs and Tools:

Hot Air Blower Soldering Iron

4.4.2.3 Special tools:

None

Information and Communication Mobile

Mobile Phones

4.4.2.4 Working materials

Desolder Wick / Braid Soldering Iron

4.4.3 Drawings

Figure 1: C55 IFX board Antenna connector

V 1.1

A55/C55

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Company Confidential

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04/03

Information and Communication Mobile

Figure 2: C55 HIT board Antenna connector

Figure 3: C55 HIT/IFX Antenna connector placement (top view)

Mobile Phones

V 1.1

A55/C55

Page 15 of 26

Company Confidential

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04/03

Information and Communication Mobile

5 Card Reader

5.1 Affected Units

5.1.1 Type: C55

Mobile Phones

5.1.2 Affected IMEIs / Date Codes:

5.1.3 Affected SW Versions:

5.2 Fault Description

5.2.1 Fault Symptoms for customers:

Handset does not accept SIM.

5.2.2 Fault Symptoms on GSM Tester:

This fault cannot be detected with a GSM-Tester

5.3 Priority:

¨ Mandatory þ

Repair

All / All

All

¨ ¨

V 1.1

A55/C55

Optional

Not Yet Defined

Company Confidential

Page 16 of 26

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5.4 Repair Documentation:

5.4.1 Description of procedure:

5.4.1.1 Diagnosis:

Visually check the Card Reader. Watch for dry joints:

5.4.1.2 Repair by component change:

Use soldering iron to remove defective component. Avoid excessive heat! Watch surrounding components!

Resolder new Card Reader afterwards.

Information and Communication Mobile

Mobile Phones

5.4.1.3 Repair by Software booting:

Not possible!

5.4.1.4 Test:

Retest handset after repair.

5.4.2 List of needed material:

5.4.2.1 Components:

Card Reader C55 HIT/IFX Part-Number: L36334-Z97-C204

5.4.2.2 Jigs and Tools:

Hot Air Blower Soldering Iron

V 1.1

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04/03

5.4.2.3 Special tools:

None

5.4.2.4 Working materials

Desolder Wick / Braid Soldering Iron

5.4.3 Drawings

Figure 1: C55 IFX board Card Reader site

Information and Communication Mobile

Mobile Phones

V 1.1

A55/C55

Page 18 of 26

Company Confidential

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Information and Communication Mobile

Figure 2: C55 HIT board Card Reader site

Figure 3: C55 HIT/IFX Card Reader placement (top view)

Mobile Phones

V 1.1

A55/C55

Page 19 of 26

Company Confidential

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04/03

Information and Communication Mobile

6 Keypad LEDs

6.1 Affected Units

6.1.1 Type: C55

Mobile Phones

6.1.2 Affected IMEIs / Date Codes:

6.1.3 Affected SW Versions:

6.2 Fault Description

6.2.1 Fault Symptoms for customers:

Keyboard Illumination does not work.

6.2.2 Fault Symptoms on GSM Tester:

This fault cannot be detected with a GSM-Tester

6.3 Priority:

¨ Mandatory þ

Repair

All / All

All

¨ ¨

V 1.1

A55/C55

Optional

Not Yet Defined

Company Confidential

Page 20 of 26

ICM MP CCQ GRM

04/03

6.4 Repair Documentation:

6.4.1 Description of procedure:

6.4.1.1 Diagnosis:

Use the diode test function of a multimeter to check the status of the diode. The typical voltage drop on the diode is 1.7V when testing the diode function with the multimeter

6.4.1.2 Repair by component change:

Use soldering iron to remove defective diode. Avoid excessive heat! Watch surrounding components!!

Resolder new diode afterwards.

Information and Communication Mobile

Mobile Phones

6.4.1.3 Repair by Software booting:

Not possible!

6.4.1.4 Test:

Retest handset after repair.

6.4.2 List of needed material:

6.4.2.1 Components:

LEDs C55 HIT/IFX Part-Number: L36840-L2056-D670

6.4.2.2 Jigs and Tools:

Hot Air Blower Soldering Iron

V 1.1

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Information and Communication Mobile

6.4.2.3 Special tools:

None

6.4.2.4 Working materials

Desolder Wick / Braid Soldering Iron

6.4.3 Drawings

Figure 1: C55 IFX/HIT board keyboard LEDs side

Figure 2: C55 IFX/HIT keyboard LEDs placement (top view)

Mobile Phones

V 1.1

A55/C55

Page 22 of 26

Company Confidential

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04/03

Information and Communication Mobile

7 Display LEDs

7.1 Affected Units

7.1.1 Type: C55

Mobile Phones

7.1.2 Affected IMEIs / Date Codes:

7.1.3 Affected SW Versions:

7.2 Fault Description

7.2.1 Fault Symptoms for customers:

Display Illumination does not work.

7.2.2 Fault Symptoms on GSM Tester:

This fault cannot be detected with a GSM Tester

7.3 Priority:

¨ Mandatory þ

Repair

All / All

All

¨ ¨

V 1.1

A55/C55

Optional

Not Yet Defined

Company Confidential

Page 23 of 26

ICM MP CCQ GRM

04/03

7.4 Repair Documentation:

7.4.1 Description of procedure:

7.4.1.1 Diagnosis:

Use the diode test function of a multimeter to check the status of the diode. The typical voltage drop on the diode is 1.7V when testing the diode function with the multimeter

7.4.1.2 Repair by component change:

Use soldering iron to remove defective diode. Avoid excessive heat! Watch surrounding components!!

Resolder new diode afterwards.

Information and Communication Mobile

Mobile Phones

7.4.1.3 Repair by Software booting:

Not possible!

7.4.1.4 Test:

Retest handset after repair.

7.4.2 List of needed material:

7.4.2.1 Components:

Display LEDs amber C55 HIT/IFS Part-Number: L36840-L2055-D670

Display LEDs blue C55 HIT Part-Number: L36197-F5008-F684

Display LEDs blue C55 IFS Part-Number: L36334-F5005-F782

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7.4.2.2 Jigs and Tools:

Hot Air Blower Soldering Iron

7.4.2.3 Special tools:

None

7.4.2.4 Working materials

Desolder Wick / Braid Soldering Iron

Information and Communication Mobile

Mobile Phones

7.4.3 Drawings

Figure 1: C55 IFX/HIT board display LEDs side

V 1.1

A55/C55

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Company Confidential

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Information and Communication Mobile

Figure 2: C55 IFX/HIT blue display LEDs placement (top view)

Figure 3: C55 IFX/HIT amber display LEDs placement (top view)

Mobile Phones

V 1.1

A55/C55

Page 26 of 26

Company Confidential

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04/03

Siemens A52, A55, C55 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual