Asus C403NA FQ0019 User manual

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C403NA Service manual
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infringement under this Warranty Statement.

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This limit also applies to ASUS' suppliers and its reseller. It is the maximum for which ASUS, its
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UNDER NO CIRCUMSTANCES IS ASUS LIABLE FOR ANY OF THE FOLLOWING: (1)
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SERVICE AND SUPPORT
Visit our multi-language website at https://www.asus.com/support/
Disclaimer
ASUS is not responsible for direct, indirect, intentional or unintentional damages resulting from
improper installation and operation.
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 Notebook PC 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.
Disconnect cables, connectors, and power plugs by pulling the plug evenly to avoid damage.
Use the correct screw models on your Notebook PC to prevent damage.
Confirm that the cable orientation is correct before connecting any cables.
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.

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Service Overview
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 C403 series Notebook, we have
provided the below information for technicians from distributors and resellers to
perform the complete notebook 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 notebook’s hardware.
The following chapter includes:
C403 Overview
Components
C403 Overview
In this section, an overview for the C403 long with its components , will be presented.
C403 Overview
The illustrations below show the notebook’s overview from front view, right side view, and
left side view. Most of the parts will be discussed in this manual.
TOP View
T
O V E R V I E W

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1. Microphone
2. Camera indicator
3. Camera
4. Display panel
5. Keyboard
6. Touchpad
7. Power button

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Bottom View
1. Audio speakers
Right View
1.USB 3.1 Gen 1 port
2. USB 3.1 Gen 1 Type-C port/Display Port/ Power (DC) input port combo port
3.Kensington Security Slot
Left View
1. USB 3.1 Gen 1 Type-C port/Display Port/ Power (DC) input port combo port
2. Two-color battery charge indicator
3. Micro SD card slot
4. Headphone/Headset jack
5. USB 3.1 Gen 1 port
BACK

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Components
The illustrations below show the components of the X430.
LCD
The illustration below shows the LCD.
LCD Bezel
The illustration below shows the LCD bezel.
LCD Cover
The illustration below shows the LCD cover.
C O M P O N E N T S
L C D C O V E R
L C D
L C D B E Z E L

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Top Case
The illustration below shows the top case.
Bottom Case
The illustration below shows the bottom case.
Thermal Module
The illustration below shows the thermal module.
T O P C A S E
B O T T O M C A S E
T H E R M AL
M O D U L E

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Main Board
The illustration below shows the main board.
Battery Pack
The illustration below shows the battery pack.
M A I N B O A R D
B A T T E R Y

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IO Board
The illustration below shows the IO board.
Touchpad
The illustration below shows the touchpad.
Camera
The illustration below shows the camera.
IO B O A R D
C A M E R A
T O U C H P A D

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Speaker
The illustration below shows the speaker.
BACK
S P E A K E R
R E L A T E D
P A R T

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Disassembly Procedure
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 C403NA 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). In addition, in between procedures, the detailed disassembly procedure of individual modules will
be provided for your service needs.
The disassembly procedure consists of the following steps:
Appropriate Tools
Touch Pad Module
Battery Module
Thermal &Motherboard Module
IO Board Module
Speaker Module
LCD Module
Camera Module
Gap Step
A

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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 and choose different screwdriver and head.
Below photos are for reference only.
Use a cross screwdriver to fasten/remove screws.
Plastic Blade

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Tweezers
Use a pair of tweezers to remove/insert flexible cables.
BACK
BACK

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Touch pad Module
The illustrations below show how to remove and disassemble the Touch PAD Module.
Remove Touch Pad Module
1. Follow below numbers to remove 10 screws on the Bottom case module.
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque (Kg F-cm): 2 KG±0.2kgf.
M2.0* L9.0

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2. Use disassembly tool to pry up the BTM CASE DOOR ASSY
3. Remove the rest of 4 screws on bottom case ，remove battery connector cover ，
disconnect the Battery connector，KB and touchpad cable .
Assembly notice: Insert FFC to the bottom until just accord with the line when lock the latch
Screw tightening torque (Kg F-cm): 2 KG±0.2kgf.

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Notice: Before disassembly, please be sure to pull out adapter and disconnect the battery more than ten seconds in
order to avoid IC damage.
M2.0* L2.5

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4. Use disassembly tool to pry up the sides of the top case.
4.Remove gasket from touchpad and then remove 3 screws on the touchpad. Then disconnect the TP FFC
on the touchpad
Assembly Notice: follow the reverse numbers to lock screws.
Screw tightening torque: 2.0±0.20 kgf-cm

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M2.0* L2.5

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Assembly notice: Please change new one, If FFC is damage during disassembly.
Here are some samples of FFC damage:
BACK
Parts
C403NA-1A TOP CASE MODULE// *1
C403NA-1A BTM CASE DOOR ASSY// *1
TOUCHPAD FOR C300SA//ELAN/SA461D-1005*1
C403NA TP FFC 6P 0.5MM L232MM//XINYA/X18AA1-5850-HF*1
C403NA-1A BTM BATTERY DOOR*1
Total screw *17
(Actual part name depends on different SKU.)

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Battery Module
The illustration below shows how to remove the battery module.
Remove Battery Module
Remove 5 screws on the Battery module
Assembly Notice: Follow the reverse numbers to lock screws.
Screw tightening torque (Kg F-cm): 2KG±0.2kgf.