Siemens Be inspired M55 Istruzioni operative

Information and Communication Mobile

Mobile Phones

V 1.0 Page 1of 28 ICM MP CCQ GRM

M55/M56 Company Confidential

M55/M56

Level 2.5

Repair Documentation

V 1.0

Information and Communication Mobile

Mobile Phones

V 1.0 Page 2of 28 ICM MP CCQ GRM

M55/M56 Company Confidential

Table of Content

1Introduction..................................................................................................................... 3

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

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

4Display Connector..........................................................................................................11

5Antenna Connector ........................................................................................................14

6Card Reader ..................................................................................................................18

7Board Connector............................................................................................................21

8Light-Night LEDS ...........................................................................................................25

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M55/M56 Company Confidential

1 Introduction

M55 product is a tripleband (GSM900, GSM1800 and GSM1900) handsets and the M56 is a

dualband mobilphone (GSM850 and GSM1900).

Partnumber on IMEI label:

M55: S30880-S6300-#xxx

M56: S30880-S7600-#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-[email protected]

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M55/M56 Company Confidential

2 I/O Connector (Slim Lumberg)

2.1 Affected Units

2.1.1 Type: M55/M56

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

2.2.2 Fault Symptoms on GSM Tester:

This fault cannot be detected with a GSM-Tester

2.3 Priority:

¨Mandatory

þRepair

¨Optional

¨Not Yet Defined

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M55/M56 Company Confidential

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.

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 M55/M56

Part-Number: L36334-Z93-C303

2.4.2.2 Jigs and Tools:

Hot Air Blower

Soldering Iron

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2.4.2.3 Special tools:

None

2.4.2.4 Working materials

Desolder Wick / Braid

Solder

2.4.3 Drawings

Figure 1: M55/M56 board I/O connector

Figure 2: M55/M56 I/O connector placement (top view)

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M55/M56 Company Confidential

Table 1: M55/M56 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_1 O Serial interface

4 RX_1 I Serial interface

5 CTS_1 I/O Data line for accessory bus

6 RTS_1 I/O Use as RTS in data operation

7 DCD_1 I/O Clock line for accessory bus

Use as DTC In data operation

8 AUDIO_P O External loudspeaker

10 AUDIO_N OI External loudspeaker

11 GND_MIC I

External microphone

12 EPP1 O

External microphone

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M55/M56 Company Confidential

3 Battery Connector

3.1 Affected Units

3.1.1 Type: M55/M56

3.1.2 Affected IMEIs / Date Codes: All / All

3.1.3 Affected SW Versions: All

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

þRepair

¨Optional

¨Not Yet Defined

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M55/M56 Company Confidential

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.

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 M55/M56

Part-Number: L36334-Z97-C213

3.4.2.2 Jigs and Tools:

Hot Air Blower

Soldering Iron

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M55/M56 Company Confidential

3.4.2.3 Special tools:

None

3.4.2.4 Working materials

Desolder Wick / Braid

Soldering Iron

3.4.3 Drawings

Figure 1: M55/M56 board Battery connector

Figure 2: M55/M56 Battery connector placement (top view)

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