Motorola C975 Troubleshooting Manual
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Also See for C975:
- Owner's manual (106 pages) ,
- User manual (60 pages) ,
- Service manual (74 pages)
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Summary of Contents for Motorola C975
- Page 1 Doc. No: TSG_C9xx Version: 0.9e Date: 23.08.2005 Motorola GmbH, CSS Center Flensburg, Mobile Devices Title: Troubleshooting-Guide C975 / C980 Page: 1 / 21 C975 / C980 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
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Page 2: Table Of Contents
Top 10 defect parts C975 Top 10 defect parts C980 Software Quick Troubleshooting Guide Defect Part 10-19 Differences between C975 and C980 Boardtest Tip Modified Date © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 3: Preamble
Page: 3 / 21 1.0 Preamble This document was created to assist analyzers when fixing problems on Motorola GSM Phones. All information was collected during the repair in the Repairentitlement Group Flensburg. © Copyright 2003-2005 Motorola Inc. All Rights reserved. -
Page 4: Some Basic Tips
- the soldering process of lead-free products always must be done with the aid of a bottom-heater and flux for lead-free soldering - always cover sensitive parts with shields - remove the RTC Battery, before soldering © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 5: Top 10 Defect Parts C975
0.9e Date: 23.08.2005 Motorola GmbH, CSS Center Flensburg, Mobile Devices Title: Troubleshooting-Guide C975 / C980 Page: 5 / 21 3.0 Top 10 Defect Parts from C975 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 6: Top 10 Defect Parts C980
0.9e Date: 23.08.2005 Motorola GmbH, CSS Center Flensburg, Mobile Devices Title: Troubleshooting-Guide C975 / C980 Page: 6 / 21 3.1 Top 10 Defect Parts from C980 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... - Page 7 For flexing and software updates it is important to have a Service Link account and access to FASTT (Flex and Software Tracking Tool). Reflash SW at C975 /C980 in the following order Clean the CE-Connector before reflashing the phone,. 1. connect the phone with the USB-Cable...
- Page 8 For flexing and software updates it is important to have Service Link account and access to FASTT (Flex and Software Tracking Tool). Flash your blank C975 /C980 in the following order Load IMAGE-file (example: R24_U_80.2B.1BI_monster-rom_UCI 975FACT01R2403B_P4B_hardware_v2). If there is no IMAGE-file for your chosen SW, then take an image of a lower SW-Version.
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Page 9: Quick Troubleshooting Guide
Motorola GmbH, CSS Center Flensburg, Mobile Devices Title: Troubleshooting-Guide C975 / C980 Page: 9 / 21 6.0 Quick Troubleshooting Guide C975 / C980 Fault Code Defect Part TON01 (Turn on/off - No Turn On) U850/ Q3963/ U3000/ U800/ U1310/ U1000/ U1300/ REFLASH... - Page 10 No power on with battery ! Please refer to “Defective Part 2. Q3963 ” Part Q3963 could be damaged during the disassembly process © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 11 Distortion on alert audio, crackling audio or no audio. Take new microphone, speaker and alert. Ensure good connection. Please refer to “Defective Part U3000” Microphone Contacts Amplifier is implemented inside the PCAP U3000 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 12 4. If you remove U850 and the short to Ground is present - change U800 5. Most of the defect PA`s get hot !! - change the PA under the warm / hot shield first © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 13 - if the power( B+) is not present check Q3963 3. Check Q3963 - visual inspection (broken, missing) - Q3963 was often damaged during the disassembly process Q3963 BATT+_RAW © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 14 - try with new alert, microphone and speaker. Ensure good connection. - amplifier (audio) is implemented in the PCAP - change U3000 Shield from PCAP get hot Amplifier is implemented inside the PCAP © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 15 - check for short or open keypad lines to Ground - tried Factory-Flex - also take a look under “Defective Part” Page 16 and Page 18 J5100 FL4302 FL4301 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 16 - always change both Flashparts (U1300/U1310) !! - look under “ Software Level 4 ” … Page 7 U5000 Clock 32,678kHz Replace Flashparts together Work careful with heat © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 17 - place check first “Defective Part” Page 14 and Page 18 - change U1000 Clock 32,678kHz POG U1000 must be change always with FLASH U1300 and U1310 together © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 18 - look for missing, unsolder and damaged part…clean the CE-Connector Phone turns on but failed with SUSPEND MODE (Test: WINGATE) TEST MODE not possible (RepairStudio / RadioComm) - change U500 Resolder was unsuccessful © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 19 - look under “Defective Part FL4301 / FL4302” on Page 14 - look under “Defective Part U1000 “ on Page 16 Joystick with Flexprint (one Part) © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
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Page 20: Differences Between C975 And C980
- Mass Market targeted to H3 and other customers C980 - Mass Market product exclusively for Vodafone ENDO - Internal structure for C975 and C980 is identical - Electrical design based on E1000 Differences between C975 and C980 - Front Housing... - Page 21 - check J5000, U5000 and U5001 (mechanical damaged / unsolder) Testno.: 1149.. CALL_CHLG originate-call-G_MaxPwr_LoChan - test with customer software could make problems, make a new test with Factory Flex: UIC975FACT01R24-03D.hs © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
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