Acer Aspire 5742Z Support Question
Find answers below for this question about Acer Aspire 5742Z.Need a Acer Aspire 5742Z manual? We have 1 online manual for this item!
Question posted by RABBIrm on August 4th, 2014
Acer Aspire Pew71 Does Not Power Up
The person who posted this question about this Acer product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.
Current Answers
Answer #1: Posted by freginold on September 13th, 2014 1:50 PM
When a laptop won't power on, it's often because of one of four things: the battery, the battery charger/AC adapter, the power board/battery charging board (if the laptop has one), or the motherboard.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
You can attempt to rule out the battery by attaching the AC adapter and trying to turn the laptop on. If the laptop turns on when on AC power but won't turn on with the battery, then one of two things is happening: either the battery is bad, or the charger is bad and the battery has run down. If the laptop won't turn on with or without the AC adapter plugged in, then the battery is not the problem. If your AC adapter has an LED on it, you can often tell if the adapter isn't working because the LED won't light up. (However, just because the LED does come on doesn't mean the adapter is working as it should.)
If it doesn't seem to be either the charger/adapter or the battery, then you're probably looking at either the power board or motherboard. If you are comfortable taking the laptop apart, you might want to try replacing the power board, which is the board that the charger plugs into. Amazon.com sells power boards (also sometimes called power jack boards) for many laptops for between $15 and $30.
The motherboard is a more expensive option to replace, so a good rule of thumb is to try the less expensive parts first. If it still won't power on, you may have a bad motherboard, in which case it might be cheaper to get a new laptop than have the motherboard repaired or replaced.
Related Acer Aspire 5742Z Manual Pages
Similar Questions
Acer Aspire Pew71 Wont Power On After Screen Replacement
(Posted by sroserp 10 years ago)
The Keyboard Does Not Work On My Acer Aspire 5742z-4646?
(Posted by pjarvis86 12 years ago)
Acer Aspire 4750g No Power Error
HOW TO SLOVE ACER ASPIRE 4750G NO POWER BUT CHARGING INPUT BATTERY LED OPEN EXPLAIN
HOW TO SLOVE ACER ASPIRE 4750G NO POWER BUT CHARGING INPUT BATTERY LED OPEN EXPLAIN
(Posted by SLNCUSTOMERCARE 12 years ago)