PC-Laptop-Servicing-Wireles-Repair-Singapore

PC Repair Laptop Notebook Computer Servicing Singapore

PC Notebook Laptop Cracked Screen or Casing Service

Problem 1

When you plug the AC adapter into the laptop, there are no lights turning on at all. When you push on the power button, nothing happens. The laptop appears to be completely dead, makes no sounds, no indications of life.

Possible problem:
- The AC adapter failed and the battery has no charge left. In this case test the AC adapter with a voltmeter. If it's dead, replace it with a new one.
- DC jack failed and the motherboard doesn't receive any power from the adapter. In this case the DC jack has to be replaced.
- Motherboard failed. The motherboard has to be replaced, if it's not too expensive. Otherwise get ready to buy a new computer.

Here are some tips for testing AC adapter and DC jack.

Also, make sure to read step-by-step instructions for troubleshooting dead laptops.

Problem 2

Screen is blank.

The laptop turns on, power LED lights up, cooling fan works but nothing appears on the screen. The screen is completely black and blank. There is no image on the screen at all.

Possible problem:
- This can be memory failure. It's possible one of the memory modules failed. In this case you can try reseating memory modules to make sure they are making good contact with the slot. You can try removing memory modules one by one and test the laptop with only one module installed. You can try replacing memory modules.
- If reseating/replacing memory doesn't help, try removing the hard drive, DVD drive, modem, wireless card, keyboard, etc… In other words, disassemble the laptop to bare minimum and test again. If the laptop still doesn't turn on, most likely you have failed motherboard or processor.

Read this guide for bare bone system troubleshooting.

Problem 3

Laptop turns on and off repeatedly.

The laptop turn on without showing any image on the screen. After a few seconds it turns off by itself. Then it turns on and off again.

Possible problem:
Most likely this is motherboard failure. You can try reseating/replacing memory as I described in the Problem 2. If it doesn't help, probably the motherboard failed.

Problem 4


Laptop makes noise while running.

The laptop turns on and everything works fine, except it makes some constant weird grinding or rattling noise.

Possible problem:
In most cases this noise is coming from the cooling fan or hard drive. Take a closer look at the cooling fan.

If the fan doesn't spin but the the laptop makes noise, probably it's coming from the hard drive. Back up all personal data as soon as possible and replace the hard drive.

Also, you can remove the hard drive and stat the laptop. If the laptop still makes noise, most likely it's bad fan.

Problem 5

Laptop shuts down or freezes.

The laptop runs properly but after a while it freezes or shuts down without any warning. When it happens, the bottom feels hot. Also, the cooling fan runs louder than usual.

Possible problem:
Most likely this is heat related issue. It happens because the fan heat sink is clogged with dust and the processor not cooling down properly. Cleaning the fan and heat sink from dust should fix it.

Here's how you fix heat related problems.

Problem 6

Battery not charging properly.

The battery stopped charging properly. It doesn't charge at all or charges only after you adjust the position of AC adapter plug inside the power connector.

Possible problem:
- Failed battery. If it doesn't charge completely try reconnecting the battery first. Also, try running the laptop just from AC adapter with battery removed. If it runs fine from AC adapter, most likely it's either bad battery or failed motherboard. Try replacing the battery first.

- Failed DC power connector. If the battery charges only after you adjust the position of AC adapter tip inside the connector, most likely this the DC jack failed.

Here are some tips for charging problems.

Problem 7

Screen light fails.

The laptop starts properly but after a while the screen light turns off. The image still appears on the screen but it's very dark.

In some cases the screen light never starts and all you can see is a very faint image.

Possible problem:
Most likely it's either failed screen inverter or backlight lamp (CCFL) failure. When either one fail, the backlight stops working.

In order to troubleshoot this, you'll need some spare parts: either new working inverter or known good backlight lamp.

Read how to troubleshoot backlight failure.

Problem 8

Strange or garbled image on the screen.

The laptop turns on properly but has a distorted or garbled image on the screen.

Possible problem:
- The graphics card failed. First of all, test your laptop with an external monitor or TV. If you see the same garbled image on the external screen, most likely the graphics card failed.
- If the problem appears only on the laptop screen, this can be related to one of the following: poor connection between the video cable and motherboard or screen. Also can be failed video cable or screen.

Here are examples of failed video and explanations how to narrow down the problem.

Also read why display shows strange colors.

Problem 9

Some keyboard keys stopped working.

Some keyboard keys do not work at all or type wrong characters.

Possible problem:
Most likely the keyboard failed and they are not repairable. Read how to replace the keyboard.

Problem 10

Keyboard has missing or broken keys.

A key got separated from the laptop keyboard.

Problem solution:
If a key separated from the keyboard, it's still possible to fix it.
If you have many keys missing, probably it makes sense to replace the whole keyboard.

Read how to attach a key back .

Problem 11

Repetitive beep sound on startup.

You turn on the laptop but there is no video on the screen. Instead, it starts making repetitive beeping sound. In some cases you can "fix" the problem temporarily if you press on the keyboard keys.

Problem solution:
Most likely you have stuck keys. In this case you'll have to replace the keyboard.

Problem 12

Liquid spill.

You spilled something on the laptop and it's stopped working.

Problem solution:
Liquid spills are very dangerous and unpredictable. If it happened, turn off the laptop ASAP, remove the battery and do not use it until all internal parts are inspected for liquid damage.
It's sill possible to make it work again.

By Arthur Yeo
PC Laptop Notebook Computer Repair Singapore
http://notebookrepairsingapore.com
Jan 11, 2014

 

Arthur Yeo - 9182 6360

(carry-in or on-site service, 7 days a week)

PC-Laptop-hardware-Home-Repair-Singapore

Top Common PC Problems / Issues :

Notebook Laptop won't turn on
Virus or Malware Attacks
Internet Fibre Broadband Fiber Running Slow
Hard Drive failure
Battery Not Charging
Liquid / Water Spillage
No Display on Desktop Monitor
No Display on Notebook Laptop LCD / LED
Keyboard Mulfunction / Missing Key / Broken Key
Sim Lim Square New / Upgrade of PC, Notebook, Laptop, Desktop
A key fell off the laptop keyboard. Fixing the problem.
DC power jack repair guide. Do-it-yourself instructions.
Why my laptop suddenly shuts down by itself without warning?
Laptop does not start. Fixing the problem.
Screen inverter replacement. Fixing laptop backlight problem.
Service manuals for Sony Vaio laptops and notebooks.
Laptop LCD screen turned completely white.
How to replace laptop backlight lamp (CCFL).
How to test LCD screen inverter in a laptop.
Laptop is dead. How to troubleshoot the problem.
Laptop has bad video on the LCD screen. What is wrong?
How to troubleshoot and fix laptop video problems.
How to connect a laptop hard drive to a desktop computer.
How to fix laptop motherboard with failed NVIDIA graphics chip.
Accessing notebook hard drive using USB enclosure.
Most common laptop hardware problems.
Removing and replacing laptop keyboard.
Fixing Compaq Presario laptop motherboard with "no video" issue.

Facebook followers:

sony-laptop-repair-service-singapore hp-compaq-pc-repair-service-facebook

PC Laptop-Internet-Installation-Repair-Singapore

Go to TOP

Connect with Us... good pc repair singapore pc repair east singapore computer repair west singapore pc repair north singapore

Trending / Tag Cloud:

freelance doctor singapore, pc doctor singapore, computer repair service, computer repairs singapore, laptop repair shop, laptop repairs singapore, repair laptop singapore

Operating System Supported:

Windows 7 Home Basic, 64-bit version, Windows 7 Home Premium, 32-bit version, Windows 7 Home Premium, 64-bit version, Windows 7 Professional, 32-bit version, Windows 7 Professional, 64-bit version, Windows 7 RC1, 32-bit, Windows 7 RC1, 64-bit

Disclaimer:

While we try to make the information on this web site as accurate as possible, but it is provided 'as is' and we accept no responsibility for any loss, injury or inconvenience caused to anyone resulting from this information. Improvements and/or changes in the products and services described in this website may also take place at any time without notice. arthuryeo.com is committed to ensuring that your privacy is protected. Should we ask you to provide certain information by which you can be identified when using this website, then you can be assured that it will only be used in accordance with this privacy statement. arthuryeo.com may change this policy from time to time by updating this page. You should check this page from time to time to ensure that you are happy with any changes. This policy takes immediate effect. Some information displayed here belongs to the individual content providers and is intended for general information only. arthuryeo.com will not be held liable for any loss, damage or injury caused by or arising through any inaccuracies or incomplete information shown on these pages. arthuryeo.com will not be liable for any loss or damage, whether direct or indirect, relating to the use of the information. Selling, re-distributing or reproducing the information on these pages without prior permission from notebookrepairsingapore.com is strictly prohibited. Use of this Site is subject to our terms and conditions of use. Your continued use of this Site shall be construed as your agreement to abide by our terms and conditions of use.

Trademarks:

t

Some of the Computer Service Locations (inclusive but not limited to, please see other pages for more service areas):

Ang Mo Kio, Jurong, Queenstown, Downtown, Orchard, Holland, Yishun, Bedok, Tampines, Pasir Ris, Hougang, Punggol, Eunos, Mountbatten, Katong, Marine Parade

All brands and models mentioned in this website are the trademarks of following respective brand:
PC-Laptop-Help-Shop-Repair-Singapore-brands