Asus UX425EA Repair Manual

Also See for UX425EA:

Repair manual (31 pages)

Repair manual (41 pages)

Table of Contents

Contents

1 Service Overview
2 Precautions
3 Appropriate Tools
4 Bottom Case Module
5 Battery Module
6 Antenna & Speaker Module
7 Fan Module
8 SSD Module
9 Thermal Module
10 Motherboard Module
11 USB board Module
12 Touchpad Module
13 Top Case Module
14 LCD Module
15 Function Accessories & Screw Torque
16 Safety precautions
17 Documents / Resources
- 17.1 Download manual

Asus UX425EA Repair Manual

Service Overview

Please pay special attention to the cautions below to prevent any damages to the notebook and please be sure to select the appropriate tools described in this section to perform any services desired.

Precautions

Before you perform any service or repair on the notebook, please follow the steps below first.

Be sure that the notebook is powered down.
Disconnect the AC plug from the notebook.
Remove all rings, watches and any other metal objects from your hands.
Always wear a ground strap on your hand to protect the notebook from static discharge.
Please refer to "ANSI ESD S20.20" about ESD protection measure.
Put disassemble the parts in the functional PE BAG for avoid any damages of the A/B/C/D part.
Environment temperature is 20-30 ℃ and humidity is 40% - 70%.
Avoid scratching the surface of the machine; please use anti-static and soft materials to put on desk in repair environment as below photo.

Screw Appearance Criteria. If the screws have the following damaged appearance, please do not use.
1. Shape deformed.
2. Paint scratched off.
3. Rusty.
4. Damaged head – unable to drive in.
5. Damaged unable to securely tighten.

Appropriate Tools

The illustrations below show the appropriate tools that should be used for the notebook's service and repair.

Cross Screwdriver
Please accord to different screw specification to choose different screwdriver and head.
Below photos are for reference only.
Use a cross screwdriver to fasten/remove screws.
Plastic Blade
Tweezers
Use a pair of tweezers to remove/insert flexible cables.
Thickness gauge
Thickness compass specification 0.05mm-1.5mm. Use it to measure the gap.

Bottom Case Module

The illustrations below show how to remove the Bottom Case Module.
Notice: Before disassembly, please be sure to pull out adapter and disconnect the battery more than ten seconds in order to avoid IC damage.

Remove 2 foot rubbers firstly, then remove 7 screws on the bottom case.
Assembly Notice: Follow the reverse numbers to lock screws and install 2 rubbers.
Screw tightening torque (Kg F-cm): 2.0KG±0.2kgf.
Screw tightening torque (Kg F-cm): 2.0KG±0.2kgf.

Use plastic blade to pry Bottom Case and remove it.

Assembly Notice: Check the conductive sponges whether exist on the bottom case when assemble the bottom case.

Snap as below:
Bottom Case Module - Step 4

Parts:

Total screw * 7
UX425JA BOTTOM CASE MODULE * 1
UX325JA RUBBER FOOT DOWN* 2
(Actual part name depends on different SKU)

Battery Module

The illustrations below show how to remove the Battery Module.

Push back the anti-off metal then disconnect the battery cable from MB.
Notice: Before disassembly, please be sure to pull out adapter and disconnect the battery more than ten seconds in order to avoid IC damage.

Please follow below steps to disconnect battery connector.

Follow below numbers to remove 6 screws on the battery module.
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque (Kg F-cm): 2.0KG±0.2kgf.

Remove the Battery

Parts:

Total screw * 6
UX425 C41N1904_4220 mAh_4347 mAh*1
(Actual part name depends on different SKU)

Antenna & Speaker Module

The illustrations below show how to remove the antenna & speaker Module.

Disconnect the WLAN antenna connector from the MB.
Assembly Notice: Black main cable connect the indicator number 2(▲MAIN), white aux cable connect the indicator number 1(∆AUX).

Disconnect the speaker module connector from the USB board, shows as below.
Remove 3 conductive sponges, then take the speakers away carefully.

Assembly Notice: Must place the speaker/antenna cables in the hook slot carefully as below and stick conductive sponges.

Separate the speaker and antenna module.

Assemble Notice: Please align the pin to assemble the antenna module.

Parts

X425JA SPEAKER*1
UX425JA MAIN ANTENNA 2.4G/5.0G//292MM *1
UX425JA AUX ANTENNA 2.4G/5.0G//292MM*1
UX325JA CONDUCTIVE MYLAR*2
UX325JA TP TAPE*1
(Actual part name depends on different SKU.)

Fan Module

The illustrations below show how to remove the fan Module.

Remove 3 screws and pull out the Fan Cables.
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque: 2.0KG±0.2kgf

Take out the fans from the bottom case.

Notice: Please use the correct technique of taking fans in order to avoid being out of shape.

Parts:

Total screw * 3
UX325JA THERMAL FAN *1
(Actual part name depends on different SKU.)

SSD Module

The illustrations below show how to remove the SSD Module.

Remove 2 screws and remove SSD shielding, shows as below.
Screw tightening torque (Kg F-cm): 2.0KG±0.2kgf

Remove SSD, please note the direction, shows as below.

The parts can be reused if they are not damaged.

Parts:

Total screw * 2
UX425JA SSD M2 2280 P3X2 512G*1
UX325JA THERMAL MOD ASSY * 1
UX325JA SSD GASKET * 1
(Actual part name depends on different SKU.)

Thermal Module

The illustrations below show how to remove the thermal Module.

Follow below numbers to remove 4 screws on the thermal module.
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque (Kg F-cm): 2.0± 0.2 Kg/cm2.
Notice: Must clean the CPU PAD before install a new one thermal module.

Remove the thermal module from the MB, shows as below.

Parts:

Total screw * 4
UX325JA THERMAL MOD ASSY*1
(Actual part name depends on different SKU.)

Motherboard Module

The illustrations below show how to remove the Motherboard Module.

Tear off the acetate cloth from the EDP cable connector on MB, then disconnect the EDP cable. Remove 2 screws which locked on the FPC cable, shows as below.
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque: 2.0KG± 0.2kgf

Disconnect the I/O FPC, TP FFC, K/B, K/B backlight cable from MB.
Assembly Notice: Insert FFC to the bottom until just accord with the line when lock the latch.

Assembly notice: Please change new one, if FFC damaged during disassembly.
There are some FFC cables damaged sample.

Remove 4 screws on the motherboard, shows as below.
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque: 2.0KG± 0.2kgf

Take off the motherboard from bottom case, shows as below.

Check the material on motherboard, shows as below.
Note: Must check the mylar before MB installation.

Parts:

Total screw *4
UX425JA IO FPC * 1
UX425JA MB* 1
UX325JA LED_LES SPONGE* 1
UX325JA MB AL MYLAR* 1
UX425JA C CASE MYLAR// (
Actual part name depends on different SKU.)

USB board Module

The illustrations below show how to remove the USB board Module.

Disconnect the LCD cable from the USB board firstly, shows as below.

Remove 3 screws from the USB board, shows as below.
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque: 2.0KG± 0.2kgf

Remove I/O FPC cable, shows as below
Note: The conductive sponge can't be missing when do cable installation.

USB board Module - Step 3

Check the material on USB board, shows as below.
Note: Must check the mylar before DB installation.

Parts

UX325EA IO_BD *1
Total screw *3
UX325JA LED_LES SPONGE*1
UX325JA TYPE_C_ABSORBING*1
UX325JA CONDUCTIVE MYLAR*1
UX425JA C CASE MYLAR//
(Actual part name depends on different SKU.)

Touchpad Module

The illustrations below show how to remove the Touchpad Module.

Disconnect the TP FFC, shows as below
Assembly notice: Insert FFC to the bottom until just accord with the line when lock the latch.

Remove 5 screws, shows as below
Assembly Notice: Follow the reverse numbers to lock screws. Screw tightening torque: 2.0KG± 0.2kgf

Assembly notice: Please change new one, if FFC is damaged during disassembly.
Here are some samples of FFC damaged:

Parts:

Total screw * 5
UX425JA TP FFC ZIF 8PIN 203MM *1
UX425JA-2G NUMBER PAD MOD * 1
(Actual part name depends on different SKU.)

Top Case Module

The illustrations below show how to remove the Top Case Module.

Remove 3 screws in each side of the hinge, then separate the Top case module and Bottom case module.
Assembly Notice: Follow the reverse numbers to lock screws. Screw tightening torque: 2.0KG± 0.2kgf

Roll up the hinge, shows as below

Separate bottom case module and top case module.

Parts:

Total screw * 6
UX425EA-2G K/B MOD * 1
(Actual part name depends on different SKU.)

LCD Module

The illustrations below show how to remove the LCD Module.

Use disassembly tool to pry up the edge of between LCD bezel and LCD cover. And take it away.

Attention: The bezel has 3 kinds of Bezel Tapes, please stick new ones when you assemble it. The positions of the tapes as below:

Follow below request to stick the taps:
Notice: The adhesive should not exceed the edge of the inner frame and should not be lifted, skewed or wrinkled.

Remove 6 screws on hinge, shows as below. Screw tightening torque: 2.0± 0.2 Kg/cm2
Assembly note: If you change hinges (right and left), please make sure all hinges are the same vendor.

Pull out the easy-pull glue (adhesive) in left and right side gently
Notice: Please keep pulling at a constant angle of more than 30 degrees. Don't break it, especially at the beginning. Pull out the easy-pull glue (adhesive) in left and right side gently.

Notice : Please slowly pull the adhesive up about 30 degree.

Separate the LCM from the top case module.

Attention: Please stick 2 new easy tapes when you assemble it. The positions of the tapes shows as below, please note the direction.
NOTE: For different configuration, use different tapes.

Tear off the film on the LCD and pick up the hoop on the connector.

Disconnect the LCM cable from the camera module then remove the cable from the LCD cover.
Assembly Notice: Please place the cable correctly as below.
Pry up the camera module from the LCD cover with tweezers.
Note: Must be careful to pry up this module, it is easily damaged component.

Note: The MIC rubber can't be missing, can't reverse.
Snap as below:

Parts:

Total screw * 6
UX425 LCD MOD*1
UX425JA CAM CABEL 14PIN 330MM*1
UX425JA EDP CABLE 30PIN 114MM*1
UX425JA-2G LCD COVER ASSY*1
UX425JA HINGE LEFT*1
UX425JA HINGE RIGHT*1
UX425JA-2G LCD BEZEL ASSY*1
X431FA MIC RUBBER*2
UX325JA/UX425JA CAMERA MOD. HD*1
UX325JA LCD CVR PULLTAPE 0P8 L//*1(Use for ATHENA )
UX325JA LCD CVR PULLTAPE 0P8 R//*1(Use for ATHENA )
UX325JA LCD COVER PULL TAPE L//*1
UX325JA LCD COVER PULL TAPE R//*1
UX425JA LCD BEZEL ADHESIVE TOP//*1
UX425JA LCD BEZEL ADHESIVE BOT//*1
UX425JA LCD BEZEL ADHESIVE LR//*2
(Actual part name depends on different SKU.)

Function Accessories & Screw Torque

Below material which marked has functional, can't be missing

Service Overview

ASUS is not responsible for direct, indirect, intentional o unintentional damages resulting from improper installation and operation.
Carefully read through this Service Guide for a look at various components of the device before performing any service and repairs.
To provide the best service, we have provided the below information for technicians from distributors and resellers to perform the complete device disassembly and assembly. Before performing the procedures, please be sure to read through the overview in this service guide for component overview to avoid any unwarranted damages to the device hardware.
Due to sales policy difference, the components might have different specifications on the same series product, please refer to E-manual by model.

Safety precautions

Before handling components, use a grounded wrist strap or touch a safely grounded object to avoid damaging them due to static electricity.
Keep liquids or moisture away from your device to avoid short circuits.
Remove rings, watches, and any other metal objects from your hands.
Hold components by the edges to avoid touching the ICs.
Properly install all components before connecting the AC power.
Do not use power adapters or batteries from other devices to reduce the risk of injury to persons due to fire or explosion. Use only certified power adapters or batteries supplied by the manufacturer or authorized retailers.
Detach all clips or flaps before removing cables to prevent damage.
Use the correct screw models on your device to prevent damage.
Fully remove all adhesive residue after removing and before installing any components.
Photograph the appearance of cables, cable routing, connectors, and screws for later reference before proceeding with each step.

Pre-repair checklist

Read the entire manual before starting any service procedures and follow all instructions.
Back up the data on your device.
Place your device on a clean and stable surface.
Turn off your device.
Disconnect all connected peripherals and cables.
Disconnect all power cables and remove the battery pack (if applicable).

If you are uncertain about performing the described service procedures, stop and contact an authorized service center for assistance.
Purchase replacement components from authorized retailers of this device to ensure maximum compatibility and reliability.

NOTE

The illustration are for reference only.
The service procedures described in this document depend on the model configuration and may not reflect the entire servicing process.
To service components that are not covered in this document, please visit an authorized service center for further assistance.
Keep all adhesive tape, insulating materials, screws, and other removable items in a safe place until the service procedure is completed, as they may be needed during reassembling.