texet TM-D105 Service Manual Download Page 1

 

 

 
 

TM-D105 Service manual 

 

 

 

 

 
 
 

Table of contents 

 

 

1. Introduction

 

1.1 Purpose

 

1.2 For your safety

 

 

2. Tesing mode

 

 

3. Repair

 

3.1 Basic knowledge for mobile phone repair

 

3.1.1 Classification for failure causes

 

3.1.2 Failure classification

 

3.1.3 Repair procedures

 

3.1.4 Basic repair environment

 

3.2 Level 0 Repair

 

3.3 Level 1 Repair

 

3.4 Level 2 Repair

 

3.5 Check out after repair

 

 

4. Level 3 Repair

 

4.1 The Block Diagram Of Logic

 

4.2 RF Block Diagram

 

4.3 Repair procedure

 

 

 

 

Summary of Contents for TM-D105

Page 1: ...edge for mobile phone repair 3 1 1 Classification for failure causes 3 1 2 Failure classification 3 1 3 Repair procedures 3 1 4 Basic repair environment 3 2 Level 0 Repair 3 3 Level 1 Repair 3 4 Level...

Page 2: ...power off your mobile phone when you approach to the places where No Mobile Phone signals posted to prevent it from shooting any signals 2 Testing Mode Press 66 to enter into the engineering mode afte...

Page 3: ...an accident incorrect phone setting causes handset response abnormal typing error pin code causes SIM lock 2 3 Incorrect maintainence mobile phone is a very delicate electronic products of high tech...

Page 4: ...setup or use mobile phone its just like the motor repair engineer can not drive a car So it s very necessary to be familiar with the operational instruction 5 Repair phone in a working house You don...

Page 5: ...mobile phone to get rid of the static electricity of body Take care of your wearing don t wear any chemical fabric clothes while repairing mobile phone 3 2 Level 0 Repair Level 0 repair do not make an...

Page 6: ...e any obvious chink or crack 3 Check up all the keys on the phone to make sure there is no wrong feeling phenomenon 4 Check by eye to see there is no deformity on battery bomb splinter 5 Start up to c...

Page 7: ...requency chennal first then pass SAW Filter hight frequency signal enter into E GOLDradio chip directly passing LNA low voice amplifier to amplify the received signal then to mix frequency channel wit...

Page 8: ...ther it has any component broken short or dust in side Replace the bad component 3 No current when power on Mainly check Battery and its connecting area whether it has any component broken short circu...

Page 9: ...it solering failure or foreign body inside Replace the bad component Symptom 6 No charging function Check the Charge block whether it has any component broken short circuit foreign body inside Replace...

Page 10: ...cklight abnormal Check the backlight circuit whether the surrounding component are normal or not Replace the bad component Symptom 14 Keypad backlight abnormal Check backlight LED whether its surround...

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