LG-525 Service Manual

$9.99
LG-525 Service Manual
   Click to enlarge
      

LG-525 Service Manual

This manual provides the information necessary to repair, calibration, description and download the features of this model.

FORMAT: High resolution PDF document!
Zip archive: 51 323 kB

1. INTRODUCTION
1.1 Purpose . .......................................................................5
1.2 Regulatory Information . ..................................................5
1. Abbreviation . ...................................................................7

2. PERFORMANC
2.1 H/W Features . ................................................................9
2.2 Technical Specification. . ..................................................11

3. TECHNICAL BRIEF
3.1 Functional Block Diagram . .............................................16
3.2 Digital Main Processor (PMB8810, U101/U401) . ....17
3.3 Power Management . ........................................................22
3.4 FEM with integrated Power Amplifier Module (SKY77547, U01, U02) .....4
3.5 Crystal(26 MHz, X100, X400) . ........................................6
3.6 RF Subsystem of PMB8810 (U101, U401) . ................7
3.7 MEMORY . ........................................................................42
3.8 Bluetooth module . ............................................................48
3.9 Dual SIM Card Interface . .................................................50
3.10 LCD Interface . ...................................................................51
3.11 Battery Charger Interface . ...........................................54
3.12 Keypad Interface . ............................................................55
3.13 Audio Front-End . .............................................................56
3.14 Camera Interface(1.M Fixed Focus Camera) . ......62
3.15 Vibrator Interface . ...........................................................64

4. TROUBLE SHOOTING
4.1 Trouble shooting test setup . .........................................65
4.2 RF Component . ..................................................................66
4. RX Trouble . ...........................................................................68
4.4 TX Trouble . ...........................................................................74
4.5 Power On Trouble . ............................................................80
4.6 Charging Trouble. ..............................................................8
4.7 Vibrator Trouble . ................................................................85
4.8 LCD Trouble . ........................................................................87
4.9 Camera Trouble . .................................................................91
4.10 Speaker Trouble . .............................................................98
4.11 Earphone Trouble . ........................................................100
4.12 Receiver Trouble . ...........................................................10
4.1 Microphone Trouble . .................................................. 106
4.14 SIM Card Interface Trouble . .......................................108
4.15 Micro SD Trouble . ..........................................................110
4.16 WiFi Trouble . ...................................................................112
4.17 FM Radio Trouble . .........................................................116

5. DOWNLOAD

6. BLOCK DIAGRAM

7. CIRCUIT DIAGRAM

8. BGA Pin Map

9. PCB LAYOUT

10. STAND ALONE TEST
10.1 Introduction . ..................................................................149
10.2 Setting Method . ............................................................149
10. Tx Test. . ..............................................................................151
10.4 Rx Test . ............................................................................. 152

11. AUTO CALIBRATION
11.1 Overview. . ............................................................153
11.2 Configuration of HotKimchi . ....................................153
11. Description of Basic File . ..........................................154
11.4 Auto Calibration setup. ............................................155
11.5 Procedure . ............................................................156
11.6 AGC . ...................................................................158
11.7 APC . ...................................................................158
11.8 ADC . ..................................................................158
11.9 Target Power . .......................................................158
12. EXPLODED VIEW & REPLACEMENT PART LIST
12.1 EXPLODED VIEW . ....................................................... 159
12.2 Replacement Parts . ......................................................161
12. Accessory . ....................................................................117

Any questions about this product?

SEND US REQUEST by filling the form below.





Step 1
ADD TO CART
Step 2
CHECKOUT
Select payment method.
Step 3
Confirm the order.


We are in business since 2002 and do our best to give our customers perfect service!

  Albert Wöckel 2019-11-06 15:30:54  
  Das Zurücksetzen hat wirklich funktioniert, obwohl ich davon nur wenig Ahnung habe!!!!
  Bill Schumacher 2013-02-22 05:48:12  
  I have a Epson TX700w printer I contacted epson in Australia for a fix for full ink pads. They were about as much help as an ash tray on a harley. I pulled the pads out joined a hose to the ink drain hose drilled a small hole in the case put the hose through to a bottle on the out side ink pad problem solved. Downloaded the WIC Reset Programe Reset counter job done. The printer is working like a new one. I will never buy another Epson product again. A big thankyou to the Wic Programe you have saved me a lot of money. Bill.
  Alexandre Crivelaro 2018-05-22 20:31:19  
  I bought refillable cartridges for the Epson XP-241 on AliExpress and did not work. The reason: Epson XP-241 manufactured in the Philippines. I was desperate. The solution: CHIPLESS. You've saved my XP-241 printer. Thank you very much.
  Bong Jak Lee 2018-01-09 07:29:50  
  I finally succeeded after a few attempts and the firmware downgrade worked !! Now I can use my non-OEM ink cartridges on my Epson printer Thank you for this excellent piece of software, well worth it Best regards
  Heri Putra Kelana 2006-05-12 05:06:13  
  please confirmation canon ip1200,1600,2200 printer service tools.
  seifs2000 seif 2011-06-14 19:33:09  
  have not seen better program then this for reset the printer really excellent, thank you
  Alan Nisbet 2011-09-28 14:43:07  
  After hours of trying to reset my Epson Stylus Photo PX710W I found Waste Ink Counter reset utility - I purchased the key and it set my counter back to Zero - The printer is now working again. Next time I buy a printer it will not ne an Epson. Alan
  star link 2019-08-31 04:22:56  
  Works slick...and why shouldn't they make some $$ for their key and Utility? I appreciate not having to send the printer to Tech support or buy a new one like Epson suggests- when it was a piece of cake to do myself.
Write review