Motorola E398 Troubleshooting And Debug Manual
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Summary of Contents for Motorola E398
- Page 1 Doc. No: TSG_E398 Version: 0.9c Date: 17.06.2005 Motorola GmbH, CSS Center Flensburg, Mobile Devices Title: Troubleshooting-Guide E398 Page: 1 / 12 E398 DebugGuide © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
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Page 2: Table Of Contents
5.4 - Charging 5.5 - Display Backlight 5.6 - Main Keypad 5.7 - Power Up (TON01) 5.8 - Power Up (TON03) 5.9 - TX Modified Date © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 3: Preamble
Page: 3 / 12 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 Repair Entitlement 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 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 5: Top 10 Defective Parts
5 / 12 3.0 - Top 10 Defective Parts This is the Analysis of the repaired Phones in NPI-Process, related to the first repair works at all. © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 6: Most Frequently Failure Codes And Root Causes
- Keyboard, J1401, J1301, U1400, U1401, S1460, SW100, SW1402, U800 TON01 - Y900, U900, Y805, U800, U700 TON03 - Y900, U900 CPRxx - U50, U150, J40 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 7: Troubleshooting
- for Dry Joints, Solder Shorts, damaged and skewed Parts - replace missing or damaged Components 2.) If the Alert is still not working replace: U900 Components around D961/D962 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... - Page 8 U900 (if not effective) U800 TP1200 TP1201 5.3 - Battery - Customer Complaint: BATxx 1.) If the Battery and/or the PA-Area is getting hot replace: © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
- Page 9 - for Dry Joints, Solder Shorts, damaged and skewed Parts - replace missing or damaged Components 2.) If charging is still not possible check “BATT FDBK” at CR900 (if not effective) replace: U900 BATT FDBK © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...
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Page 10: Display Backlight
- replace missing or damaged Components 2.) If the Display Backlight is still not working check the “BACKLIGHT 5V” at C1454 replace: L960 (if not effective) D960 BACKLIGHT 5V © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 11: Main Keypad
3.) If the PCB doesn’t start up check VBOOST (5,6V) at L922, L921, CR921 U900 replace if suspect check VBUCK (1,9V) at L920, CR920, R920, C927 U900 replace if suspect © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use... -
Page 12: Power Up (Ton03)
- replace missing or damaged Components 2.) If TX is still not working check TX-Output at A1, L1, C7, J40, check TX-Input (GSM) and (DCS) replace: (if not effective) U150 © Copyright 2003-2005 Motorola Inc. All Rights reserved. Repair Support Information Motorola internal use...