Private Communication Systems Mobile Phones Service Manual for C25 / C2588 V 1.0 Service Manual C25 / C2588 Sm_C25_lvl2_v10_w97 V 1.0 Page 1 of 32 ICP CD ST R.
Private Communication Systems Mobile Phones 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 the alphanumeric C25 display. This manual is intended to help you carry out repairs up to level 2 on the mobile telephones C25 and C2588. For information on level 2.5 repairs or on the testequipment, please refer to the available documentation.
Private Communication Systems Mobile Phones 2 Table of Contents 1 INTRODUCTION ......................................................................................................................................... 2 2 TABLE OF CONTENTS .............................................................................................................................. 3 2 TECHNICAL DATA........................................................................................................................
Private Communication Systems Mobile Phones 9.15 CAR HANDSET........................................................................................................................................ 32 Service Manual C25 / C2588 Sm_C25_lvl2_v10_w97 V 1.0 Page 4 of 32 ICP CD ST R.
Private Communication Systems Mobile Phones 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 Phase 2 Performance: GSM 900, Class 4 (2 Watt) GSM 1800, Class 1 (1 Watt) Battery: NiMH, 3.6V, 700 mAh Standby time: Up to 100 hours Talk time: Up to 5 hours Charging time: up to 6 hours (with Standard Charger) up to 1.
Private Communication Systems Mobile Phones 3 General Information With the C25/C2588 is the second model of the C-class of Siemens Mobiles. The intention of this class is to offer low cost entry-level mobile phones for the mass consumer market. It is of a small size and has an attractive design. This telephone is a so called Dual band telephone, meaning it is capable of operating in GSM 900 networks as well as in GSM 1800 ones.
Private Communication Systems Mobile Phones In opposite to the MMI board of other phones (e.g. S6 and E10) the ringer (1100) is not soldered to the board, but is mechanically fixed on one of the shielding covers (1310) by a metal clip (1190) and electrically connected to the board by a cable and a plug. The ringer in C25 is of the same type as the one used in C1x mobiles. C25 does have an external connector of a new type.
Private Communication Systems Mobile Phones 4.1 Mechanical drawing Note: The numbers shown above are NO ordering numbers. For ordering please use the partnumbers supplied by your service manager! Service Manual C25 / C2588 Sm_C25_lvl2_v10_w97 V 1.0 Page 8 of 32 ICP CD ST R.
Private Communication Systems Mobile Phones 4.2 Necessary tools For disassembling the C25 the following Case Opener is mandatory: Ordering number of Case Opener: 4.3 F30032-P46-A1 Disassembling the C25 Attention: ESD regulations have to be followed! 1. You first remove the battery lid and then the battery below. 2. Now you remove the SIM card. 3. Then you pull the antenna out. 4. Open the housing with the opening tool and carefully pull the lower housing section off.
Private Communication Systems Mobile Phones 5. Now you remove the battery contacts from the lower housing section. 6. Remove the section. card reader from the lower housing 7. Remove the section. microphone from the lower housing 8. After that you disconnect the ringer plug-in connector. 9. You then remove the ringer from the lower HF-screen lid. 10. Remove the clip from the lower HF-screen lid. Service Manual C25 / C2588 Sm_C25_lvl2_v10_w97 V 1.0 Page 10 of 32 ICP CD ST R.
Private Communication Systems Mobile Phones 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 upper housing section. Attention: The loudspeaker is glued to the upper housing section by a foam covered with glue on both sides. When you remove it, the foam may be damaged. 13. Carefully release the display from the radio and control module and fold it downwards. 1 14.
Private Communication Systems Mobile Phones 4.4 Assembling the C25 Attention: ESD regulations have to be followed! 2 1. First you plug in the connector cable of the display in the retaining clip of the plug-in connector on the module (1) and then close the retaining clip (2). 1 2. Now fasten the display to the radio and control module. Attention! In order to position the display exactly, the synthetic projection on the lower side of the display frame must be fitted into the hole in the screen lid.
Private Communication Systems Mobile Phones 6. Position the ringer on the clip. Attention! The catches on the clip must engage exactly with the holes in the ringer. 7. Now you connect the ringer plug-in connector . 8. Fasten the microphone in the lower housing section. Attention! The microphone contacts must not be dirty, damaged or bent. 9. Fasten the card reader in the lower housing section. Attention! The card reader must not be dirty, damaged or bent. 10.
Private Communication Systems Mobile Phones 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 assembled the phone completely. Service Manual C25 / C2588 Sm_C25_lvl2_v10_w97 V 1.0 Page 14 of 32 ICP CD ST R.
Private Communication Systems Mobile Phones 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 located in the battery compartment.
Private Communication Systems Mobile Phones 5 Hardware Concept 5.1 Block Diagram Service Manual C25 / C2588 Sm_C25_lvl2_v10_w97 V 1.0 Page 16 of 32 ICP CD ST R.
Private Communication Systems Mobile Phones 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 signalprocessor. The microprocessor part of this component is responsible for controlling the keyboard, SIM-Card, Flash and RAM. Furthermore it controls the power up/power down of the RF module and sets the amplification of the PA.
Private Communication Systems Mobile Phones • • 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) Transmitter Circuit PMB 2255 This circuit provides the IF synthesizer, the I/Q modulator, prescalers to regulate the RF synthesizer and a buffer stage to feed the PA. The antenna switch is mechanical, located in the connector for the external antenna. Service Manual C25 / C2588 Sm_C25_lvl2_v10_w97 V 1.
Private Communication Systems Mobile Phones 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) delivered by the different charger types (see accessory list) via the Lumberg connector at the bottom of the telephone. Since the battery voltage is supplying the power supply asic, it is always needed to operate the phone. You cannot switch on the handset if the battery voltage is not present.
Private Communication Systems Mobile Phones Furthermore the ASIC generates the supply voltage for the SIM card and the RESET signal for the logic devices. Attention: The telephone supplies the SIM card with 3Volts, meaning 5V-SIMs are not supported. In case a user inserts such a 5Volt card, the telephone will not recognise it and prompt to insert a SIM card the same way as it would in case there is no SIM inserted. Telephone is not defective.
Private Communication Systems Mobile Phones 6 Software programming 6.1 Hardware overview Connection Cable RS-232 Adapter Cable Bootadapter AC-Adapter The software of the C25 handset is programmed directly from a PC using a bootadapter as an interface between serial port of the PC and the mobile. Because of the new type of external connector used in C25 (Lumberg type) an additional adapter cable between mobile and bootadapter is required. 6.
Private Communication Systems Mobile Phones 6.2 Language Groups For C25/C2588 the following languages will be available. They will be separated into different language groups. Bahasan Indonesia Cestina English German Italian Portu Swedish Bahasan Malaysia Danish Finnish Greek Norsk Russian Turkish Catalan Dutch French Hungar Polish Spanish Attention: This information is subject to change! Contact your service coordinator for the latest update and ordering numbers.
Private Communication Systems Mobile Phones 7 Battery 7.1 Specification The C25 battery is a NiMH type with a voltage of 3.6Volts and a capacity of 700 mAh. Suppliers are Varta and Maxell. You can easily recognize the manufacturer by the colour of the battery cells: Varta’s cells are of a green colour, Maxell’s ones are bluish. The connections BATT+ and GND are used to supply the phone with power. The connector BATT_TEMP can be used by the mobile to measure the temperature of the battery cells.
Private Communication Systems Mobile Phones 7.2 Charging The battery can only be charged if inserted into the telephone. The charging process is completely controlled by the mobile.
Private Communication Systems Mobile Phones 7.4 Deep Discharge In case of a deeply discharged battery, the phone can not be turned on and the normal charging process can not be started. In this case, charging the battery is divided into two different steps, which have to be run subsequently: a) Trickle charge Trickle charge mode is automatically started if the battery voltage is below a certain value when the charger is connected to the mobile.
Private Communication Systems Mobile Phones 7.5 Battery Datecodes There are two different suppliers of the C25 batteries and they use different kinds of codes to give information about production date: a) Maxell batteries The datecode printed on the battery looks like this: K 7 08 20 M Explanation: K 7 08 20 M = Year of production (1998=K, 1999=L) = Month of production (Jan=1, Feb=2, .....Oct=O, Nov=N, Dec=D) = Day of production (1st =1, 2nd =2, 3rd =3,........
Private Communication Systems Mobile Phones 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 entering the right unblocking code. This unblocking code is derived from the IMEI number of the mobile and can only be calculated in two different ways: 8.1 Siemens Hotline You can retreive the code from our hotline personell in Germany.
Private Communication Systems Mobile Phones 8.2 Internet solution As an alternative to the a.m. procedure, since november 1997 an internet solution is offered to the LSO. It is a password protected internet homepage where you can enter the IMEI number of the affected handset. The page will then present Master Phone Codes, Master Network Codes and Master Service Provider Codes (if applicable to the relevant telephone).
Private Communication Systems Mobile Phones 9 Accessories Overview of optional accessories: Mobile Phone Accessory Program Batteries Battery 700 mAh Charging Car Environment Rapid Charger Car Charger Antenna Cradle Travel Charger Car Cradle Car Kit Comfort Desktop Solutions Desk Top Charger Design & Carry Headset Belt Clip Leather Case Car Kit Portable 9.1 Standard Charger (included in package) Specifications: Ø Voltage: 6.0Volts Ø Current: 150mA Ø Charging time: Up to 5 hours 9.
Private Communication Systems Mobile Phones 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 the charging process to a duration of 1.5 hours. Ø Compact charger in 5 country versions (EU, UK, US/ Taiwan, China, Australia) Ø Quick charging time: approx. 1.5 hrs 9.
Private Communication Systems Mobile Phones 9.8 Belt Clip The belt clip allows easy and secure attachement to a belt. The phone can rotate to a convenient angle. Ø Ø Ø Ø Rotatable fixation Easy to remove Insertion in each angle possible Secure phone hold 9.9 Headset The headset offers safe hifh quality hands free use whilst walking or driving. Ø Portable Handsfree Kit Ø Full duplex digital quality Ø Automatic call acceptance controlled by mobile phone menue Ø Comfort fixation 9.
Private Communication Systems Mobile Phones 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 to cigar lighter (12V/24V) Ø LED signalizing power supply Ø Recommended use together with Car Cradle 9.
Information and Communication Products Communication Devices C25(88) Level 2.5 Repair Documentation V 1.2 V1.2 Page 1 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 the alphanumeric C25 display. The repairs for C25 and C2588 are identical unless otherwise noted. Lately a new version of the C25 has been introduced. This version has the main processor HiGold version 4.3 of the S25(88).
Information and Communication Products Communication Devices Table of Contents: 1 INTRODUCTION ......................................................................................................................................... 2 2 ANTENNA CONNECTOR .......................................................................................................................... 4 3 RINGER CONNECTOR ...........................................................................................................
Information and Communication Products Communication Devices 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 2.2.1 Fault Symptoms for customers: Network Search when using the external antenna (carkit) No location update possible on external antenna (carkit) 2.2.
Information and Communication Products Communication Devices From Power Amplifier/ To Receiver 2.3 p x p p 2.4 To / From Internal Antenna Priority: ........ Mandatory ........ Repair ........ Optional ........ Not Yet Defined Repair Documentation 2.4.1 Description of procedure: 2.4.1.1 Diagnosis Check the output power of the handset with the LSO testprogram. Especially watch the external antenna power! 2.4.1.
Information and Communication Products Communication Devices 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 connector Part-Number: L36334-Z93-C261 2.4.2.2 Jigs and Tools Hot Air Blower Soldering Iron 2.4.2.3 Special Tools None 2.4.2.4 Working materials Desolder Wick / Braid Solder V1.2 Page 6 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 2.4.3 Drawings Figure 1: C25 Board Antenna Connector Side (Top View) Figure 2: C25 Antenna Connector Placement (X400) (Top View) V1.2 Page 7 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 3.2.1 Fault Symptoms for customers: Problems with the handset ringer. No ringer tone audible. 3.2.2 Fault Symptom on GSM-Tester: Handset fails ringer test. 3.3 p x p p V1.2 Priority: ........ Mandatory ........ Repair ........ Optional ...
Information and Communication Products Communication Devices 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 the connector. Watch for bent contacts and dry joints. 3.4.1.2 Repair by component change Resolder dry soldering joints. If the connector is physically damaged use hot air blower or wick to remove defective connector.
Information and Communication Products Communication Devices 3.4.2.3 Special Tools None 3.4.2.4 Working materials Desolder Wick / Braid Solder Flux 3.4.3 Drawings Figure 1: C25 Board Ringer Connector Side Figure 2: C25 Ringer Connector (X5) Placement (Top View) V1.2 Page 10 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 Description 4.2.1 Fault Symptoms for customers: Charging problems. Problems with external loudspeaker or microphone when using a car kit. Problems with accessories connected at the bottom connector. 4.2.
Information and Communication Products Communication Devices 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 defective bottom connector. Avoid excessive heat! Watch surrounding components! Resolder new bottom connector afterwards. 4.4.1.3 Repair by SW-Booting Not possible! 4.4.1.4 Test Retest handset after repair. 4.4.2 List of needed material 4.4.2.
Information and Communication Products Communication Devices 4.4.2.4 Working materials Desolder Wick / Braid Solder 4.4.3 Drawings Figure 1: C25 Board Bottom Connector Side Figure 2: C25 Bottom Connector (X4) Placement (Top View) V1.2 Page 13 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 5 18µH Coil 5.1 Affected Units 5.1.1 Type: C25 5.1.2 Affected IMEIs / Date Codes: All / All 5.1.3 Affected SW-Versions: All 5.1.4 Fault Code for LSO reporting: 3COI 5.2 Fault Description 5.2.1 Fault Symptoms for customers: Loud humming noise in loudspeaker. 5.2.2 Fault Symptom on GSM-Tester: Handset fails with loud humming noise in echo loop. 5.3 p x p p V1.2 Priority: ........ Mandatory ........ Repair ........ Optional ........
Information and Communication Products Communication Devices 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 a 5.4 V supply voltage for the power amplifier out of the 2.8V battery voltage. If the coil is mechanically damaged (broken) it produces heavy interference with the acoustical elements of the C25 resulting in a loud humming noise in the earpiece.
Information and Communication Products Communication Devices 5.4.2 List of needed material 5.4.2.1 Components 18µH Coil Part-Number: L36151-F5183-M 5.4.2.2 Jigs and Tools Soldering Iron Hot Air Blower 5.4.2.3 Special Tools None 5.4.2.4 Working materials Desolder Wick / Braid Solder V1.2 Page 16 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 5.4.3 Drawings Figure 1: C25 Board 18µH Coil (L201) Side Figure 2: C25 18µH Coil (L1) Placement (Top View) V1.2 Page 17 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 6.2.1 Fault Symptoms for customers: Network Search. Handset drops calls. 6.2.2 Fault Symptom on GSM-Tester: Power problems on the internal antenna of the handset only. 6.3 p x p p V1.2 Priority: ........ Mandatory ........ Repair ........
Information and Communication Products Communication Devices 6.4 Repair Documentation 6.4.1 Description of procedure: The antennaspring connects the main board with the internal antenna of the handset. 6.4.1.1 Diagnosis Visually check the status of the spring. Bent or oxidated springs have to be replaced. 6.4.1.2 Repair by component change Use soldering iron to remove defective spring. Avoid excessive heat! Watch surrounding components! Resolder new spring afterwards. 6.4.1.
Information and Communication Products Communication Devices 6.4.2.3 Special Tools None 6.4.2.4 Working materials Desolder Wick / Braid Solder 6.4.3 Drawings Figure 1: C25 Board Antenna Spring Side Figure 2: C25 Antenna Spring (X401) Placement (Top View) V1.2 Page 20 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 7.2.1 Fault Symptoms for customers: Display problems. Missing Lines or columns on the LCD. 7.2.2 Fault Symptom on GSM-Tester: Handset fails display test. 7.3 p x p p V1.2 Priority: ........ Mandatory ........ Repair ........ Optional ....
Information and Communication Products Communication Devices 7.4 Repair Documentation 7.4.1 Description of procedure: 7.4.1.1 Diagnosis Visually check the status of the connector. Check the opening/closing mechanism and watch for dry joints. 7.4.1.2 Repair by component change Use soldering iron to resolder dry joints or use hot air blower to remove defective connector. Avoid excessive heat! Watch surrounding components! Resolder new connector afterwards. 7.4.1.3 Repair by SW-Booting Not possible! 7.
Information and Communication Products Communication Devices 7.4.2.3 Special Tools None 7.4.2.4 Working materials Desolder Wick / Braid Solder 7.4.3 Drawings Figure 1: C25 Board Display Connector Side Figure 2: C25 Display Connector (X3) and C2588 Display Connector (X2) Placement (Top View) V1.2 Page 23 of 34 ICP CD ST D.
Information and Communication Products Communication Devices V1.2 Page 24 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 Description 8.2.1 Fault Symptoms for customers: The display is not working at all or shows strange characters. 8.2.2 Fault Symptom on GSM-Tester: Handset fails display test. 8.3 p x p p V1.2 Priority: ........ Mandatory ........ Repair ........
Information and Communication Products Communication Devices 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 display controller. Especially C308 has occasionally been found defective. Check the status of the capacitors by measuring ist capacitance with a appropriate measurement device. The capacitance must be in the 220nF range. Defective caps often have a lower capacitance around 100nF. 8.4.1.
Information and Communication Products Communication Devices 8.4.2.3 Special Tools None 8.4.2.4 Working materials Desolder Wick / Braid Solder 8.4.3 Drawings Figure 1: C25 Board Display Capacitor Side Figure 2: C25 Display Capacitor (C301, C302, C304, C307, C308) Placement V1.2 Page 27 of 34 ICP CD ST D.
Information and Communication Products Communication Devices C308 C304 C302 C307 C301 V1.2 Page 28 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 Fault Symptoms for customers: The handset ringer (buzzer) is not working or the Ringer level is too low 9.2.2 Fault Symptom on GSM-Tester: Handset fails ringer test. 9.3 p x p p V1.2 Priority: ........ Mandatory ........ Repair ........
Information and Communication Products Communication Devices 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 it is defective, the ringer cannot work anymore. Check the status of the coil by measuring its resistance with a multimeter. The resistance must be very low. Also broken coils have to be replaced. 9.4.1.2 Repair by component change Use hot air blower or soldering iron to remove defective coil.
Information and Communication Products Communication Devices 9.4.2.3 Special Tools None 9.4.2.4 Working materials Desolder Wick / Braid Solder 9.4.3 Drawings Figure 1: C25 Board Ringer Coil Side Figure 2: C25 Ringer Coil (L300) Placement (Top View) V1.2 Page 31 of 34 ICP CD ST D.
Information and Communication Products Communication Devices 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 Description 10.2.1 Fault Symptoms for customers: The display/keypad illumination is not working properly. 10.2.2 Fault Symptom on GSM-Tester: This fault cannot be tested with the GSM-Tester. 10.3 p x p p V1.2 Priority: ........ Mandatory ........
Information and Communication Products Communication Devices 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 and for the keyboard. Just switch on the phone without upper case and remove the keyboard. Now visually check the function of the LEDs. 10.4.1.2 Repair by component change Use hot air blower or soldering iron to remove defective LED.
Information and Communication Products Communication Devices 10.4.2.3 Special Tools None 10.4.2.4 Working materials Desolder Wick / Braid Solder 10.4.3 Drawings Figure 1: C25 Board LED Side V1.2 Page 34 of 34 ICP CD ST D.
