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Screen Blank

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.

Turns on & off repeatedly

Most likely this is motherboard failure. You can try reseating/replacing memory as I described above. If it doesn’t help, probably the motherboard failed.

Makes noise while running

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.

Shuts down or freezes

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.

Battery not charging properly

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.

Screen light fails

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.

Strange or garbled image on the screen

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.

Some keyboard keys stopped working

Most likely the keyboard failed and they are not repairable.

Keyboard has missing or broken keys

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.

Repetitive beep sound on startup

Most likely you have stuck keys. In this case you’ll have to replace the keyboard.
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We Repair almost all the major brands like Dell,Hp,Lenovo,Apple,Acer,Sony,Toshiba Etc.We have 15 Years of experience in the field of  Laptop repairing.Our repair lab is equipped  with all the modern facilities to handle and resolve the issues occurring in Laptop.

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