Siemens S35 Service Manual

Information and Communication Products

Communication Devices

C35(i), M35(i), S35

Level 2.5

Repair Documentation

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Information and Communication Products

Communication Devices

Table of Contents:

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

2 ANTENNA CONNECTOR

...................................................................................................................................................................................5

3 RINGER

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

BOTTOM CONNECTOR (LUMBERG)

.................................................................................................................................................................................12

4 DISPLAY CONNECTOR

.................................................................................................................................................................................17

5 KEYBOARD LEDS

.................................................................................................................................................................................22

6 DISPLAY LEDS

.................................................................................................................................................................................25

7 INFRARED DIODES

.................................................................................................................................................................................30

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Information and Communication Products

Communication Devices

1Introduction

The C/M/S35 product family consists of 5 different dualband handsets (GSM-900 and
GSM-1800), which can easily be distinguished from the second block of the partnumber
printed on the IMEI label. There also exist Asian variants of C/M/S35 named 3508 / 3518 /
3568 respectively. All information below also applies to the Asian variants unless otherwise
noted.

Partnumber on IMEI label:

1) C35 / 3508: S30880-S4000-Xxxx

2) C35i / 3508i: S30880-S4050-Xxxx

Same as C35 / 3508 but with additional WAP and fax/data capabilities

3) M35 / 3518: S30880-S4200-Xxxx

4) M35i / 3518i: S30880-S4250-Xxxx

Same as M35 / 3518 but with additional WAP and fax/data capabilities

5) S35i / 3568i: S30880-S4100-Xxxx

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 spare parts do not hesitate to
contact our technical support team in Kamp-Lintfort, Germany:

Tel.: [phone]
Fax: [phone]
e-mail: [e-mail]

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Information and Communication Products

Communication Devices

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Information and Communication Products

Communication Devices

2Antenna Connector

2.1Affected Units

2.1.1Type: C/M/S35

2.1.2Affected IMEIs / Date Codes: All / All

2.1.3Affected SW-Versions: All

2.1.4Fault Code for LSO reporting: 3ANC

2.2Fault Description

2.2.1Fault Symptoms for customers:

Network Search when using the external antenna
(carkit)
No location update possible on external antenna (carkit)

2.2.2Fault Symptom on GSM-Tester:

Output power problems on the external antenna
No location update possible

2.2.3Component Information

The Antenna Connector is a mechanical switch operated by the RF plug of a carkit or, for testing
purposes, of an RF clip.
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. See drawing below.

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Information and Communication Products

Communication Devices

2.3Priority:

 ........ Mandatory

 ........ Repair

 ........ Optional

 ........ Not Yet Defined

2.4Repair Documentation

2.4.1Description of procedure:

2.4.1.1Diagnosis

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

2.4.1.2Repair by component change

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

Resolder new connector afterwards.

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From Power
Amplifier/ To
Receiver

To / From
Internal
Antenna

Information and Communication Products

Communication Devices

2.4.1.3Repair by SW-Booting

Not possible!

2.4.1.4Test

Retest handset after repair as described above.

2.4.2List of needed material

2.4.2.1Components

X35 antenna connector

Attention: This is not the same connector as C25/S25 !!!

Part-Number: L36334-Z93-C272

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

2.4.3Drawings

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Information and Communication Products

Communication Devices

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Figure 1: X35 Board Antenna Connector Side (Top View)

Figure 2: X35 Antenna Connector Placement (X501) (Top View)

Information and Communication Products

Communication Devices

3Ringer

3.1Affected Units

3.1.1Type: C/M/S35

3.1.2Affected IMEIs / Date Codes: All / All

3.1.3Affected SW-Versions: All

3.1.4Fault Code for LSO reporting: 3RIN

3.2Fault Description

3.2.1Fault Symptoms for customers:

Problems with the handset ringer. No ringer tone
audible.

3.2.2Fault Symptom on GSM-Tester:

Handset fails ringer test.

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

Visually check the ringer. Watch for physical damage or dry joints.

3.4.1.2Repair by component change

Resolder dry soldering joints.
If the ringer is physically damaged use hot air blower or wick to remove
defective connector.
Avoid excessive heat!
Watch surrounding components!

Resolder new ringer afterwards.

3.4.1.3Repair by SW-Booting

Not possible!

3.4.1.4Test

Retest handset after repair.

3.4.2List of needed material

3.4.2.1Components

Ringer P35:
Part-Number: L36178-Z2-C26

3.4.2.2Jigs and Tools

Hot Air Blower
Soldering Iron

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Information and Communication Products

Communication Devices

3.4.2.3Special Tools

None

3.4.2.4Working materials

Desolder Wick / Braid
Solder
Flux

3.4.3Drawings

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Figure 1: X35 Board Ringer Side

Figure 2: X35 Ringer (B800) Placement (Top View)