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Nokia 2100 Repair Hint

Nokia 2100 Repair Hint

Service level 3 & 4
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See also: Service Manual , User Manual
Customer Care Europe, Middle East & Africa
Technical Services / SCCE Training Group
© 2004 Nokia Corporation
© NMP 2004
Repair Hints
Service-Level 3 & 4
2100
NAM-2
CONFIDENTIAL
NAM-2
03/03/2004
Checked by:
SCCE
1 (15)
Repair Hints
Version 2.0 Approved
Approved by:
SCCE Training Group

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Summary of Contents for Nokia 2100

  • Page 1 1 (15) Customer Care Europe, Middle East & Africa NAM-2 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Repair Hints Service-Level 3 & 4 2100 NAM-2 © NMP 2004 Checked by: Approved by:...
  • Page 2 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation General -How to use this document Put the colored schematics behind this manual. Now you are able to follow these specifications with graphical layouts and it is easier for you to find the components and measuring points.
  • Page 3 Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation -PWB handling & cleaning To avoid damages of PWB and/or components through electrostatic discharging, handle the module in ESD protected area. When handling PCBs outside an ESD-bag always wear ESD-bracelets, which must be connected to earth bonding point.
  • Page 4 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation ESD Protection requirements Electrostatic discharge can easily damage the sensitive components of electronic products. Therefore, every Service Partner has to take care of at least some precautions, such as ESD restricted area, floor, table, covering, chair(s), shoes or wristbands.
  • Page 5 Nokia Mobile Phones. All rights are reserved. Copying, including reproducing, modifying, storing, adapting or translating any or all of this material requires the prior written consent of Nokia Mobile Phones. This material also contains confidential information, which may not be disclosed to others without the prior written consent of Nokia Mobile Phones.

  • Page 6: Table Of Contents

    CONFIDENTIAL 6 (15) Customer Care Europe, Middle East & Africa NAM-2 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Contents General PREFACE Introduction List of figures Chapter1 Phone does not switch on...
  • Page 7 Customer Care Europe, Middle East & Africa NAM-2 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Chapter 1: List of figures Figure Chapter Page 32.768kHz sleepclock at J228 26MHz Clk-frequency at C830 13MHz Clk-frequency at C213 ©...

  • Page 8: Phone Does Not Switch On

    Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Chapter 2: Phone does not switch on Pre-check Check mechanical appearance of battery connector (X101); especially check spring-contacts if bent, soiled or corroded; change connector if necessary.

  • Page 9: Confidential Nam-2

    Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation 26MHz Clk-frequency at C830 In case that CCONT N100 seems to be the responsible for not power on, check VB 3.6VDC at C129. Check 32.768kHz square wave at J228.
  • Page 10 Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Chapter 3: Flash update is not possible Pre-check First of all try to make a flash update. If flash update is not possible check flashing contact-pads for dirt.

  • Page 11: Not Charging

    NAM-2 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Chapter 4: Not charging Pre-check In case of any fault in the charging circuit: First run energy management calibration to define the fault!!! Also run calibration if battery gets hot, charging stops too early.
  • Page 12 Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Battery size failed: Check voltage at C160 or C162, normally 0.5 VDC in service jig. If voltage is not ok, check R120/122 for defect or broken solderings, also check C120/160/162 have no shorts to ground.
  • Page 13 Chapter 5: Different types of display failures On the following pages is shown how to use global symptom codes in connection with display failures for Nokia 2100. This document shows how the display failures look like. Segments missing Symptom code: 2214...
  • Page 14 NAM-2 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Contrast problem Symptom code: 2216 Backlight Symptom code: 2219 Missing LED or even all-over brightness, color not identical. In this case change the faulty LED, not the display module.

  • Page 15: Customer Care Europe, Middle East & Africa Technical Services / Scce Training Group © 2004 Nokia Corporation

    CONFIDENTIAL 15 (15) Customer Care Europe, Middle East & Africa NAM-2 Repair Hints Technical Services / SCCE Training Group Version 2.0 Approved 03/03/2004 © 2004 Nokia Corporation Change history Originator Status Version Date Comment TS Training Draft 19/05/2003 First draft version for the repair group.

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