Motorola E398 series Guide
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 1 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
E398 DebugGuide
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 2 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
Table of Contents
1.0 - Preamble
2.0 - Some Basic Tips
2.1 - Software Upgrade
2.2 - Visual Inspection
2.3 - Cross Check
2.4 - Solder Process
3.0 - Top 10 Defective Parts
4.0 - Most frequently Failure Codes and Root Causes
5.0 - Troubleshooting
5.1 - Alert
5.2 - Audio
5.3 - Battery
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 By
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 3 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
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.
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 4 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
2.0 - Some Basic Tips
2.1 Software upgrade
- always use the latest Software available for the phone (Software-
bugs are excluded)
2.2 Visual inspection
- check for liquid damage (water indicator)
- check for missing, broken or unsoldered parts
- check for mechanical damage (board twisted, tracks defect etc.)
2.3 Cross check
- before beginning to replace/change parts or soldering anything
try to consider the failure from all sides.
2.4 Solder process
- 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
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 5 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
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.
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 6 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
4.0 - Most frequently Failure Codes and Root Causes
ALTxx - U900
AUDxx - Microphone, J2000, U900, U800
BATxx - U50
CHGxx - J1400, Fl1400, U900, J950, CR900, U900
DIMxx - J1301, L960, D960
MKPxx - Keyboard, J1401, J1301, U1400, U1401, S1460, SW100, SW1402,
U800
TON01 - Y900, U900, Y805, U800, U700
TON03 - Y900, U900
CPRxx - U50, U150, J40
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 7 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
5.0 - Troubleshooting
5.1 - Alert - Customer Complaint: ALTxx
1.) If the Alert is not working
check:- Chassis Speaker Assy
- J1261
- the Components around D961
- the Components around D962
- 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
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 8 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
5.2 - Audio - Customer Complaint: AUDxx
1.) If Audio is not working
check:- the Microphone
- J2000
- the Components around the Microphone
- the Components around TP1200
- the Components around TP1201
- the Components around U900
2.) If Audio is still not working
check at TP1200 and TP1201 ≈1,4V DC
replace: - 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: - U50
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 9 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
5.4 - Charging - Customer Complaint:CHGxx
1.) If charging is not possible
check:- J1400
- FL1400
- U900
- J950
- CR900
- 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
Motorola GmbH, CSS Center Flensburg, Mobile Devices
Doc. No: TSG_E398
Version: 0.9c
Date: 17.06.2005
Title: Troubleshooting-Guide E398 Page: 10 / 12
Repair Support Information © Copyright 2003-2005 Motorola Inc. All Rights reserved.
Motorola internal use
5.5 Display Backlight - Customer Complaint: DIMxx
1.) If the Display Backlight is not working
check:- J1301
- for Dry Joints, Solder Shorts, damaged and skewed Parts
- 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
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