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Service Overview
C423NA Service manual
COPYRIGHT INFORMATION
No part of this manual, including the products and software described in it, may be reproduced,
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any means, except documentation kept by the purchaser for backup purposes, without the express
written permission of ASUSTeK COMPUTER INC.("ASUS").
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ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE
PRODUCTS AND SOFTWARE DESCRIBED IN IT.
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2023 ASUSTeK COMPUTER INC. All Rights Reserved.
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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 C423 Series
- 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 Carefully read through this chapter for a look at various components of the Notebook before performing any service and repairs. o provide the best service and support for the ASUS C423 series Notebook, we have provided the below information for technicians from distributors and resellers to perform the complete Notebook disassembly and assembly.
- Page 4 Service Overview C423 Overview In this section, an overview for the C423, along with its components, will be presented. C423 Overview O V E R V I E W The illustrations below show the Notebook’s overview from front view, right side view, left side view, and rear side view.
- Page 5 Service Overview Left View V1.0...
- Page 6 Disassembly Procedure Front View Rear View BACK 2 - 6 V1.0...
- Page 7 Disassembly Procedure Components O N E N T S The illustrations below show the components of the C423 LCD model M O D E L The illustration below shows the LCD model . Top Case C A S E The illustration below shows the top case. Bottom Case O M C A S E The illustration below shows the bottom case.
- Page 8 Disassembly Procedure Battery T T E R Y The illustration below shows the battery. Main Board B O A R D The illustration below shows the main board. WLAN Module L A N The illustration below shows the WLAN module. D U L E Touchpad C H P A D...
- Page 9 Disassembly Procedure Speaker E A K E R The illustration below shows the speaker. IO Board B O A R D The illustration below shows the IO Board. BACK 2 - 9 V1.0...
- Page 10 Please follow the information provided in this section to perform the complete disassembly procedure of the Notebook. Be sure to use proper tools described before. SUS C423 Series Notebook consists of various modules. This chapter describes the procedure for the complete Notebook disassembly and assembly (Assemble document please look up from the last page).
- Page 11 Disassembly Procedure Appropriate Tools The illustrations below show the appropriate tools that should be used for the notebook’s service and repair. Cross Screwdriver Please according to different screw specification choose different screwdriver and head. Below photos are for reference only. Use a cross screwdriver to fasten/remove screws.
- Page 12 Disassembly Procedure Bottom Case Module The illustrations below show how to remove the Bottom Case Module. Remove Bottom Case Module Remove 11 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 M2.5*6.3L K W-NI #1 NY SCREW M2.5*4.5L K W-NI #1 NY...
- Page 13 Disassembly Procedure Remove Top Case Module Use a plastic blade to pry the Bottom case. Snaps as belo Parts C223NA BOTTOM CASE ASSY (Actual part name depends on different SKU.) BACK 2 - 13 V1.0...
- Page 14 Disassembly Procedure 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. NOTICE: Please follow below steps to disconnect battery connector.
- Page 15 Disassembly Procedure Parts C2 C423 BATT/ATL POLY/C21N1808//SMP/359191/2S1P/7.7V/38WH Total screw *6 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. Parts ...
- Page 16 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 17 Disassembly Procedure LCD Module Remove LCD Module 1. Remove 6 screws on Hinge SCREW M2.5*4.5L K W-NI #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. Parts ...
- Page 18 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): 2kg Assemble Notice: After replace new MB, please clean remaining CPU and GPU thermal pad on thermal module and then paste new one.
- Page 19 Disassembly Procedure IO Board The illustrations below show how to remove the IO Board. Remove IO Board Disconnect the FFC from Main Board. 3. Remove 2 screws on the IO Board 2 - 19 V1.0...
- Page 20 Disassembly Procedure Assembly notice: Please change new one, If FFC is damage during disassembly. Here are some samples of FFC damage: Parts Total screw *2 C223NA IO_BD._0M. C223NA IO FFC 30P 0.5MM L114MM//XINYA/X18AA1-4299-F-HF BACK 2 - 20 V1.0...
- Page 21 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 22 Disassembly Procedure SCREW M2*3L K B-NI #1 NY C423NA MB EDP SPONGE C423NA MB._4G/N4200/AS//(EMMC32G/AC)/PEGA/9C-N163M0300 Total screw *2 BACK 2 - 22 V1.0...
- Page 23 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. Total screw *3 ...
- Page 24 Disassembly Procedure KB MODULE Assembly Notice: ECN Change: KB MODULE Please paste the GRAPHITE by following the edge of structure before assembling on the BACK LCD Module The illustrations below show how to remove the LCD Module. 1. Remove the Hinge Cap of LCD moudel 2.
- Page 25 Disassembly Procedure 3. Remove the EDP cable and disconnect the camera FPC port. 2 - 25 V1.0...
- Page 26 Disassembly Procedure 2 - 26 V1.0...
- Page 27 Disassembly Procedure 4. Follow below numbers to remove 6 screws on the hinge and take it out. Assembly Notice: follow the reverse numbers to lock screws. Screw tightening torque (Kg F-cm): 2.5KG± 0.2kgf. SCREW M2.5*2.5L 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.
- Page 28 Disassembly Procedure 5. Remove the adhesive slowly by tweezers adhesive location Notice : Please slowly pull the adhesive up about 30 degree. 30゜ 6. Remove the EDP Cable horizontally. 2 - 28 V1.0...
- Page 29 Disassembly Procedure 7. Remove the Camera FPC and take out the camera . Disconnect the camera cable. Remove 2PCS Micphone Rubbers Parts: C423NA-1A HINGE R *1 C423NA-1A HINGE L *1 C423NA-1A 14.0' HD US *1 C423NA-1A LCD BEZEL SUB ASSY *1 ...