Asus C425TA Service Manual
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Service Overview
C425TA Service manual
COPYRIGHT INFORMATION
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by
any means, except documentation kept by the purchaser for backup purposes, without the express
written permission of ASUSTeK COMPUTER INC.("ASUS").
ASUS PROVIDES THIS MANUAL "AS IS"WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,
EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF
BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
ARISING FROM ANY DEFECT OR ERROR INTHIS MANUAL OR PRODUCT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identification or explanation and to the
owners' benefit, without intent to infringe.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE
FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECTTO CHANGE AT
ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A
COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY
ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE
PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Copyright ○
2023 ASUSTeK COMPUTER INC. All Rights Reserved.
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LIMITATION OF LIABILITY
Circumstances may arise where because of a default on ASUS' part or other liability, you are entitled to
recover damages from ASUS. In each such instance, regardless of the basis on which you are entitled to
claim damages from ASUS, ASUS is liable for no more than damages for bodily injury (including death)
and damage to real property and tangible personal property; or any other actual and direct damages
resulted from omission or failure of performing legal duties under this Warranty Statement, up to the
listed contract price of each product.
ASUS will only be responsible for or indemnify you for loss, damages or claims based in contract, tort or
infringement under this Warranty Statement.
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Summary of Contents for Asus C425TA

  • Page 1 Warranty Statement, up to the listed contract price of each product. ASUS will only be responsible for or indemnify you for loss, damages or claims based in contract, tort or infringement under this Warranty Statement.
  • Page 2 Service Overview This limit also applies to ASUS' suppliers and its reseller. It is the maximum for which ASUS, its suppliers, and your reseller are collectively responsible. UNDER NO CIRCUMSTANCES IS ASUS LIABLE FOR ANY OF THE FOLLOWING: (1) THIRD-PARTY CLAIMS AGAINSTYOU FOR DAMAGES; (2) LOSS OF, OR DAMAGE TO,YOUR RECORDS OR DATA;...
  • Page 3: Service Overview

    C425TA before performing any service and repairs. o provide the best service and support for the ASUS C425TA, we have provided the below information for technicians from distributors and resellers to perform the complete C425TA disassembly and assembly. But before performing the procedures, please be sure to read through the overview in this chapter for component overview to avoid any unwarranted damages to the C425TA’s hardware.
  • Page 4 Service Overview C425TA Overview In this section, an overview for the C425TA, along with its components, will be presented. C425TA Overview O V E R The illustrations below show the C425TA’s overview from front view, right side view, left side V I E W view, and rear side view.
  • Page 5 Disassembly Procedure Front View Rear View 2 - 5 V1.0...
  • Page 6 Disassembly Procedure Top View 1. Camera 2. Camera indicator 3. Display panel 4. Keyboard 5. Touchpad 6. Power button 2 - 6 V1.0...
  • Page 7 Disassembly Procedure Bottom 1. Audio speakers 2 - 7 V1.0...
  • Page 8 Disassembly Procedure Right Side MicroSD card slot 2. USB 3.1 Gen 1 Type-C™ /DisplayPort/ Power (DC) input combo port Left Side 1. USB 3.1 Gen 1 Type-C™ /DisplayPort/ Power (DC) input combo port 2. Two-color battery charge indicator 3. USB 3.1 Gen 1 port 4.
  • Page 9 Disassembly Procedure Components C O M P O N E N The illustrations below show the components of the C434TA LCD model L C D The illustration below shows the LCD model . M O D E Top Case T O P The illustration below shows the top case.
  • Page 10 Disassembly Procedure Battery B A T T The illustration below shows the battery. E R Y Main Board M A I N The illustration below shows the main board. B O A R WLAN Module W L A N The illustration below shows the WLAN module. M O D U 2 - 10 V1.0...
  • Page 11 Disassembly Procedure Touchpad T O U C H The illustration below shows the touchpad. P A D Speaker S P E The illustration below shows the speaker. A K E IO Board The illustration below shows the IO Board. B O A BACK 2 - 11 V1.0...
  • Page 12: Disassembly Procedure

    C425TA . Be sure to use proper tools described before. SUS C425TA Series notebook consists of various modules. This chapter describes the procedure for the complete C425TA disassembly and assembly (Assemble document please look up from the last page). In addition, in between procedures, the detailed disassembly procedure of individual modules will be provided for your service needs.
  • Page 13 Disassembly Procedure Plastic Blade Tweezers Use a pair of tweezers to remove/insert flexible cables. BACK 2 - 13 V1.0...
  • Page 14 Disassembly Procedure Bottom Case Module The illustrations below show how to remove the Bottom Case Module. Remove Bottom Case Module Remove 10 screws on Bottom Case. Assembly Notice: follow the reverse numbers to lock screws. Screw tightening torque (Kg F-cm): 2.5kg Screw tightening torque (Kg F-cm): 2.5kg SCREW M2*4L (K)(ф4.0) W-NI,NY SCREW M2*3L K W-NI #1 NY...
  • Page 15 Disassembly Procedure Remove Top Case Module Use a plastic blade to pry the Bottom case. Snaps as below 2 - 15 V1.0...
  • Page 16: Battery Module

    Disassembly Procedure Parts C425TA(00) 1A BOTTOM CASE ASSY (Actual part name depends on different SKU.) BACK Battery Module The illustration below shows how to remove the battery module. 1. Disconnect the battery cable. Notice: Before disassembly, please be sure to pull out adapter and disconnect the battery more than ten seconds in order to avoid IC damage.
  • Page 17: Speaker Module

    Disassembly Procedure SCREW M2*3L (K) B-ZN #1 NY Parts  C425TA BATT/ATL POLY/C31N1824//SMP/359191/2S1P/11.55V/48WH  Total screw *2 BACK Speaker Module The illustrations below show how to remove the Speaker Module. Remove Speaker Module 1. Disconnect the speak cable on the M/B Assembly Notice: please well arrange the audio cables and put them in the hook slot as below.
  • Page 18 Disassembly Procedure Parts  C425TA SPEAKER//PEGA/04A4-03RV000 BACK 2 - 18 V1.0...
  • Page 19 Disassembly Procedure WLAN Antenna Cable Antenna Cable The illustrations below show how to remove the Remove WLAN Module 1. Disconnect WLAN cable from the WLAN Assembly Notice: black cable is connect to the ‘MAIN’ input port. White cable is connect to the ‘AUX’ port. 2.
  • Page 20: Lcd Module

    Disassembly Procedure LCD Module Remove LCD Module 1. Remove 6 screws on Hinge SCREW M2*4L (K) B-ZN #1 NY Notice: If you need to replace hinges (hinge covers), please make sure hinge (hinge cover) R and hinge (hinge cover) L are the same vendor. 2 - 20 V1.0...
  • Page 21 Disassembly Procedure Notice: C425TA (TOUCH)LCD Module doesn’t need to disassemble for repair – This part has been packed as module. Notice: C425TA (NON-TOUCH)LCD Module need to disassemble for repair. TOOLS Bezel Disassembly 2 - 21 V1.0...
  • Page 22 Disassembly Procedure 3. Remove the detach tape. • Use Tweezers to remove the detach tape on both sides, try to maintain a small angle as much as possible. Do not pull the speed too fast to avoid easy breakage. • Need finger to pull a bigger force to remove the detach tape in the middle region. 2 - 22 V1.0...
  • Page 23 Disassembly Procedure 4. Slowly open the LCD Module. 5. Separate LCD Module and LCD COVER eDP Cable, Camera module, Camera FPC Cable,Camera wire Cable, all use double-sided adhesive tape. If there is no replacement, it is not recommended to decompose. 2 - 23 V1.0...
  • Page 24 Disassembly Procedure Notice: The bezel have a , please stick new one on the bezel when you assemble it. LCD BEZEL SPONGE Snap as below 2 - 24 V1.0...
  • Page 25 Disassembly Procedure Notice : Please slowly pull the adhesive up about 30 degree. 30゜ Parts  Total screw * 6  C425TA LCD COVER ASSY//PEGA*1  LCD Panel *1  EDP Cable *1  Camera Module *1  Camera FPC Cable *1 ...
  • Page 26: Thermal Module

    Disassembly Procedure Thermal Module Thermal The illustration below shows how to remove the module. 1. Remove 4 screws on the heatsink, take Thermal away. Assembly Notice: follow the reverse numbers to lock screws. Screw tightening torque (Kg F-cm): 2.0kg Screw tightening torque (Kg F-cm): 2.0kg SCREW M2*1.5L K B-ZN #0 NY SCREW M2*2.5L (K) B-ZN NY #0 If the unit original has warranty label, please stick the 'WARRANTY VOID' label on thermal module when...
  • Page 27 Disassembly Procedure Parts  Total screw * 4  C425TA_THERMAL_MODULE_ASSY//AURAS BACK  IO Board The illustrations below show how to remove the IO Board. Remove IO Board Disconnect the FFC from Main Board. 3. Remove 4 screws on the IO Board 2 - 27 V1.0...
  • Page 28 Disassembly Procedure SCREW M2*3L(K) W-NI NY #0 Assembly notice: Please change new one, If FFC is damage during disassembly. Here are some samples of FFC damage: 2 - 28 V1.0...
  • Page 29 Disassembly Procedure Parts  Total screw *5  C425TA IO_BD  C425TA IO FFC BACK 2 - 29 V1.0...
  • Page 30 Disassembly Procedure Motherboard Module The illustrations below show how to separate the Motherboard module Remove Motherboard Module Disconnect the Keyboard FPC and Touchpad FFC cable Assembly notice: Insert FFC to the bottom until just accord with the line when lock the latch. 2.
  • Page 31 Disassembly Procedure  C425TA MB *1  Total screw *10 BACK 2 - 31 V1.0...
  • Page 32: Touchpad Module

    Disassembly Procedure Touchpad Module The illustrations below show how to remove the touchpad module. Remove Touchpad Module 1. Remove 3 screws on Touchpad and disconnect the FFC on the T/P Assembly Notice: follow the reverse numbers to lock screws. Please change a new tape when assembled 2 - 32 V1.0...
  • Page 33 Disassembly Procedure SCREW M2*1.5L K B-ZN #0 NY Notice: Add 2 Sponges. 1.C425TA(00) TOP SPONGE 16X4 2.C425TA(00) TOP SPONGE 7X4 2 - 33 V1.0...
  • Page 34 Disassembly Procedure Assembly Notice:  Total screw *3  TOUCHPAD FOR C425TA//ELAN/  C425TA CMOS FPC NONTOUCH//PEGA/  BACK 2 - 34 V1.0...

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