Page 2 - Introduction
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 2 of 32 02/99 1 Introduction The C25 is the first dualband handset (GSM-900 and GSM-1800) in the C-class.The C2588 is a special version for the asian market featuring a graphic ...
Page 3 - Table of Contents
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 3 of 32 02/99 2 Table of Contents 1 INTRODUCTION ...................................................................................................................................
Page 5 - Technical Data; GSM Phase 2; not
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 5 of 32 02/99 2 Technical Data Length: 116 mm (w/o antenna)137 mm (with antenna) Width: 46 mm Thickness: 28 mm (max.) Volume: 118 cm³ Weight: 130 g (approx.) Standards: GSM Phas...
Page 6 - General Information; This telephone is a so called; Dual band telephone; , meaning it is capable of; Mechanical Concept; Note: All part numbers refer to mechanical drawing in section
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 6 of 32 02/99 3 General Information With the C25/C2588 is the second model of the C-class of Siemens Mobiles. Theintention of this class is to offer low cost entry-level mobile ...
Page 7 - Software Programming; and
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 7 of 32 02/99 In opposite to the MMI board of other phones (e.g. S6 and E10) the ringer (1100) isnot soldered to the board, but is mechanically fixed on one of the shielding cov...
Page 8 - Mechanical drawing
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 8 of 32 02/99 4.1 Mechanical drawing Note: The numbers shown above are NO ordering numbers.For ordering please use the partnumbers supplied by your service manager!
Page 9 - Necessary tools; Attention: ESD regulations have to be followed!; You first remove the battery lid and then the battery
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 9 of 32 02/99 4.2 Necessary tools For disassembling the C25 the following Case Opener ismandatory: Ordering number of Case Opener: F30032-P46-A1 4.3 Disassembling the C25 Attent...
Page 10 - Now you remove the battery contacts from the lower
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 10 of 32 02/99 5. Now you remove the battery contacts from the lower housing section. 6. Remove the card reader from the lower housing section. 7. Remove the microphone from the...
Page 11 - Remove the radio and control module from the upper
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 11 of 32 02/99 11. Remove the radio and control module from the upper housing section. 12. After that you remove the keypad mat, retaining clip and the loudspeaker from the uppe...
Page 12 - Assembling the C25
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 12 of 32 02/99 4.4 Assembling the C25 Attention: ESD regulations have to be followed! 1. First you plug in the connector cable of the display in the retaining clip of the plug-i...
Page 14 - Finally you insert the battery and close the battery
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 14 of 32 02/99 12. Push the antenna in. 13. Now insert the SIM card. 14. Finally you insert the battery and close the battery compartment with the battery lid. 15. Now you have ...
Page 15 - Handset Datecodes
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 15 of 32 02/99 4.5 Handset Datecodes Siemens is using the industrial standard DIN EN 60062 to indicate the production /service dates. The code is printed on the IMEI sticker loc...
Page 16 - Hardware Concept; Block Diagram
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 16 of 32 02/99 5 Hardware Concept 5.1 Block Diagram
Page 17 - Hardware Description
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 17 of 32 02/99 5.2 Hardware Description The handset consists of the following major integrated circuits: 1) HiGOLD (PMB 2800) This IC is a combination of microprocessor and sign...
Page 18 - Mixer to mix down the IF signal to the baseband, generating and
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 18 of 32 02/99 • Mixer to mix down the IF signal to the baseband, generating and inphase (I) and a quadrature (Q) signal. • Offset compensation for the I/Q signals. 5) Transmitt...
Page 19 - Power Supply Concept
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 19 of 32 02/99 5.3 Power Supply Concept The C25 has two main power inputs: 1) Battery Voltage (3.6 Volts) connected at the battery contacts 2) Charging Voltage (6.5 Volts) deliv...
Page 20 - The telephone supplies the SIM card with 3Volts, meaning; supported; Overvoltage Conditions
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 20 of 32 02/99 Furthermore the ASIC generates the supply voltage for the SIM card and the RESETsignal for the logic devices. Attention: The telephone supplies the SIM card with ...
Page 21 - Software programming; Hardware overview
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 21 of 32 02/99 6 Software programming 6.1 Hardware overview The software of the C25 handset is programmed directly from a PC using abootadapter as an interface between serial po...
Page 22 - Language Groups
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 22 of 32 02/99 6.2 Language Groups For C25/C2588 the following languages will be available. They will be separated intodifferent language groups. Bahasan Indonesia Bahasan Malay...
Page 23 - Battery; Specification; Insertion of battery:
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 23 of 32 02/99 7 Battery 7.1 Specification The C25 battery is a NiMH type with a voltage of3.6Volts and a capacity of 700 mAh. Suppliers are Varta and Maxell. You can easilyreco...
Page 24 - Charging; Avoid short circuit of battery !
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 24 of 32 02/99 7.2 Charging The battery can only be charged if inserted into the telephone. The charging processis completely controlled by the mobile. Different kinds of Siemen...
Page 25 - Deep Discharge
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 25 of 32 02/99 7.4 Deep Discharge In case of a deeply discharged battery, the phone can not be turned on and thenormal charging process can not be started. In this case, chargin...
Page 26 - Battery Datecodes; Example
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 26 of 32 02/99 7.5 Battery Datecodes There are two different suppliers of the C25 batteries and they use different kinds ofcodes to give information about production date: a) Ma...
Page 27 - Unblocking; Siemens Hotline; Siemens AG
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 27 of 32 02/99 8 Unblocking If the phone is disabled due to a wrong entry of the phonecode (not PIN1, PIN2,network code or service provider code!) it can only be resetted by ent...
Page 28 - Internet solution
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 28 of 32 02/99 8.2 Internet solution As an alternative to the a.m. procedure, since november 1997 an internet solution isoffered to the LSO. It is a password protected internet ...
Page 29 - Accessories; Charging time: Up to 5 hours
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 29 of 32 02/99 9 Accessories Overview of optional accessories: 9.1 Standard Charger (included in package) Specifications: Ø Voltage: 6.0Volts Ø Current: 150mA Ø Charging time: U...
Page 30 - Spare Battery
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 30 of 32 02/99 9.3 Spare Battery Identical to the one supplied with the phone Ø Technology: NiMH Ø Voltage: 3.6V Ø Capacity: 700mAh 9.4 Rapid Charger The rapid charger speeds up...
Page 31 - Belt Clip
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 31 of 32 02/99 9.8 Belt Clip The belt clip allows easy and secure attachement to abelt. The phone can rotate to a convenient angle. Ø Rotatable fixation Ø Easy to remove Ø Inser...
Page 32 - Car Kit Portable
Private Communication Systems Mobile Phones Service Manual C25 / C2588 V 1.0 ICP CD ST R. Fleuren Sm_C25_lvl2_v10_w97 Page 32 of 32 02/99 9.12 Car Charger Ø Power supply and battery charging Ø Quick charging with auto switch over to trickle charging Ø Power supply for Desk Top Charger Ø Connection t...
Page 33 - Repair Documentation
Information and Communication Products Communication Devices V1.2 Page 1 of 34 ICP CD ST D. Schnoor 8/99 C25(88) Level 2.5 Repair Documentation V 1.2
Page 34 - Introduction
Information and Communication Products Communication Devices V1.2 Page 2 of 34 ICP CD ST D. Schnoor 8/99 1 Introduction The C25 is the first dualband handset (GSM-900 and GSM-1800) in the C-class.The C2588 is a special version for the asian market featuring a graphic display instead of thealphanumer...
Page 36 - Antenna Connector; Affected Units; All; Fault Description
Information and Communication Products Communication Devices V1.2 Page 4 of 34 ICP CD ST D. Schnoor 8/99 2 Antenna Connector 2.1 Affected Units 2.1.1 Type: C25 2.1.2 Affected IMEIs / Date Codes: All / All 2.1.3 Affected SW-Versions: All 2.1.4 Fault Code for LSO reporting: 3ANC 2.2 Fault Description ...
Page 37 - Mandatory; Resolder new connector afterwards.
Information and Communication Products Communication Devices V1.2 Page 5 of 34 ICP CD ST D. Schnoor 8/99 2.3 Priority: p ........ Mandatory x ........ Repair p ........ Optional p ........ Not Yet Defined 2.4 Repair Documentation 2.4.1 Description of procedure: 2.4.1.1 Diagnosis Check the output pow...
Page 38 - Retest handset after repair as described above.; None
Information and Communication Products Communication Devices V1.2 Page 6 of 34 ICP CD ST D. Schnoor 8/99 2.4.1.3 Repair by SW-Booting Not possible! 2.4.1.4 Test Retest handset after repair as described above. 2.4.2 List of needed material 2.4.2.1 Components C25 antenna connectorPart-Number: L36334-Z...
Page 40 - Ringer Connector; Handset fails ringer test.
Information and Communication Products Communication Devices V1.2 Page 8 of 34 ICP CD ST D. Schnoor 8/99 3 Ringer Connector 3.1 Affected Units 3.1.1 Type: C25 3.1.2 Affected IMEIs / Date Codes: All / All 3.1.3 Affected SW-Versions: All 3.1.4 Fault Code for LSO reporting: 3RIC 3.2 Fault Description 3...
Page 41 - ringer through a two pin cable.
Information and Communication Products Communication Devices V1.2 Page 9 of 34 ICP CD ST D. Schnoor 8/99 3.4 Repair Documentation 3.4.1 Description of procedure: The connector X5 is connecting the main board of the C25 with the piezo ringer through a two pin cable. 3.4.1.1 Diagnosis Visually check t...
Page 43 - Testequipment cannot communicate with the handset.
Information and Communication Products Communication Devices V1.2 Page 11 of 34 ICP CD ST D. Schnoor 8/99 4 Bottom Connector (Lumberg) 4.1 Affected Units 4.1.1 Type: C25 4.1.2 Affected IMEIs / Date Codes: All / All 4.1.3 Affected SW-Versions: All 4.1.4 Fault Code for LSO reporting: 3LUC 4.2 Fault De...
Page 44 - Visually check the bottom connector. Watch for dry joints!
Information and Communication Products Communication Devices V1.2 Page 12 of 34 ICP CD ST D. Schnoor 8/99 4.4 Repair Documentation 4.4.1 Description of procedure: 4.4.1.1 Diagnosis Visually check the bottom connector. Watch for dry joints! 4.4.1.2 Repair by component change Use hot air blower remove...
Page 47 - Resolder new coil afterwards
Information and Communication Products Communication Devices V1.2 Page 15 of 34 ICP CD ST D. Schnoor 8/99 5.4 Repair Documentation 5.4.1 Description of procedure: 5.4.1.1 Diagnosis The 18µH coil is used in the step up converter which is generating a5.4 V supply voltage for the power amplifier out of...
Page 50 - Antenna Spring; internal
Information and Communication Products Communication Devices V1.2 Page 18 of 34 ICP CD ST D. Schnoor 8/99 6 Antenna Spring 6.1 Affected Units 6.1.1 Type: C25 6.1.2 Affected IMEIs / Date Codes: All / All 6.1.3 Affected SW-Versions: All 6.1.4 Fault Code for LSO reporting: 3ANS 6.2 Fault Description 6....
Page 51 - Resolder new spring afterwards.
Information and Communication Products Communication Devices V1.2 Page 19 of 34 ICP CD ST D. Schnoor 8/99 6.4 Repair Documentation 6.4.1 Description of procedure: The antennaspring connects the main board with the internal antennaof the handset. 6.4.1.1 Diagnosis Visually check the status of the spr...
Page 53 - Display Connector; Handset fails display test.
Information and Communication Products Communication Devices V1.2 Page 21 of 34 ICP CD ST D. Schnoor 8/99 7 Display Connector 7.1 Affected Units 7.1.1 Type: C25 7.1.2 Affected IMEIs / Date Codes: All / All 7.1.3 Affected SW-Versions: All 7.1.4 Fault Code for LSO reporting: 3DIC 7.2 Fault Description...
Page 57 - Display Capacitors
Information and Communication Products Communication Devices V1.2 Page 25 of 34 ICP CD ST D. Schnoor 8/99 8 Display Capacitors 8.1 Affected Units 8.1.1 Type: C25 8.1.2 Affected IMEIs / Date Codes: All / All 8.1.3 Affected SW-Versions: All 8.1.4 Fault Code for LSO reporting: 3DCA 8.2 Fault Descriptio...
Page 58 - Resolder new capacitor afterwards.
Information and Communication Products Communication Devices V1.2 Page 26 of 34 ICP CD ST D. Schnoor 8/99 8.4 Repair Documentation 8.4.1 Description of procedure: 8.4.1.1 Diagnosis The capacitors are used to buffer the supply voltage of the displaycontroller. Especially C308 has occasionally been fo...
Page 61 - Ringer Coil
Information and Communication Products Communication Devices V1.2 Page 29 of 34 ICP CD ST D. Schnoor 8/99 9 Ringer Coil 9.1 Affected Units 9.1.1 Type: C25 9.1.2 Affected IMEIs / Date Codes: All / All 9.1.3 Affected SW-Versions: All 9.1.4 Fault Code for LSO reporting: 3RCO 9.2 Fault Description 9.2.1...
Page 62 - Resolder new coil afterwards.
Information and Communication Products Communication Devices V1.2 Page 30 of 34 ICP CD ST D. Schnoor 8/99 9.4 Repair Documentation 9.4.1 Description of procedure: 9.4.1.1 Diagnosis The coil is used to generate the voltage to operate the piezo ringer. If itis defective, the ringer cannot work anymore...
Page 64 - 0 Keypad LEDs
Information and Communication Products Communication Devices V1.2 Page 32 of 34 ICP CD ST D. Schnoor 8/99 10 Keypad LEDs 10.1 Affected Units 10.1.1 Type: C25 10.1.2 Affected IMEIs / Date Codes: All / All 10.1.3 Affected SW-Versions: All 10.1.4 Fault Code for LSO reporting: 3LED 10.2 Fault Descriptio...
Page 65 - Use hot air blower or soldering iron to remove defective LED.; Watch the polarity of the LED!; Resolder new LED afterwards.; Retest handset after repair.
Information and Communication Products Communication Devices V1.2 Page 33 of 34 ICP CD ST D. Schnoor 8/99 10.4 Repair Documentation 10.4.1 Description of procedure: 10.4.1.1 Diagnosis The nine LEDs are providing the illumination both for the display andfor the keyboard. Just switch on the phone with...