My laptop runs very hot and eventually turns off or freezes – this is one of the most common complaints I have been receiving from my customer for many years. Why it’s happening? Is there an easy fix for that?
Most likely this problem is heat related. Take a look at the following picture.
Laptop screen started showing strange or wrong colors. What could be wrong? I’ve been asked this question many times and today I’m addressing the issue.
In this post I explain some basic troubleshooting techniques in case if your laptop screen started showing strange or incorrect colors.
You have to know how to disassemble the laptop in order to use following troubleshooting techniques.
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You have to know how to disassemble the laptop in order to use following troubleshooting techniques.
Read the rest of this entry »
In this post I explain how you can fix a known video problem on some HP laptops without actually taking it apart. Most likely the fix is not permanent but this will buy you some time, enough to backup personal files or even use the laptop until you get a new one. There is no guaranty this fix work 100%.
Here are some HP models affected by this known video failure problem: HP Pavilion dv2000, dv6000, dv9000, tx1000 tablet PC, Compaq 700, v3000, v6000 and probably some others.
If you know more models, please mention them in comments after this post.
CAUSE OF THE PROBLEM:
As I know, the video problem somehow related to NVIDIA chip located on the motherboard. Overtime the NVIDIA chip separates from the motherboard and the laptop video fails.
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Read the rest of this entry »
In this post I explain how to troubleshoot laptop battery charging problems. I will list most common battery failure examples and suggest some troubleshooting steps.
Example 1.
Laptop detects the battery but shuts off when AC adapter unplugged.
When you move the cursor arrow over the battery icon while the laptop is connected to AC adapter, it show the remaining battery charge and says “charging”.
Here’s how I fixed a Compaq Presario V6000 motherboard with “no video” issue. Not sure if this fix will last forever but it works and the laptop is back to life.
Also, this fix might work for the following HP/Compaq laptop motherboards: HP Pavilion dv2000/dv6000/dv9000, Compaq Presario V3000 and probably some other models.
WARNING!
This repair might be harmful for your health and baking motherboard in an oven could be a bad idea. It could be toxic. I don’t know if it is or not. I did this repair for myself, at my own risk. I’m just sharing my experience. If you decide to fix your motherboard the same way, please do it at your own risk.
This repair might be harmful for your health and baking motherboard in an oven could be a bad idea. It could be toxic. I don’t know if it is or not. I did this repair for myself, at my own risk. I’m just sharing my experience. If you decide to fix your motherboard the same way, please do it at your own risk.
In the next post I’ll show much safer way to fix the same video problem. Which requires no laptop disassembly.
Again, proceed at your own risk. Otherwise, close this page and take your laptop to the professional repair shop.
FIXING “NO VIDEO” ISSUE BY BACKING THE MOTHERBOARD.
Problem description: I had an abandoned Compaq Presario V6000 laptop. The laptop was turning on when I press on the power button but after a few seconds turning off by itself. There was no video on the laptop screen or external monitor. I tried another AC adapter, new memory modules but it didn’t help. I was pretty sure this is motherboard related failure.
How to disassemble a laptop keyboard? Can I take it apart and clean liquid spill? Is it easy to repair a damaged keyboard?
I’ve been getting these questions many times and today I show how to disassemble a laptop keyboard. You decide if it’s possible and easy or not. 
By the way, in one of the previous posts I explain how to fix individual keys on a laptop keyboard.
I’m doing it for fun. I’m working on a damaged keyboard and have no intention to use it in the future.
First of all, you’ll have to remove the laptop keyboard.
This guide explains how to fix a broken keyboard connector on a laptop motherboard. I do not claim that my instructions will work for any connector type in any laptop brand, but if I can help a few people, I can call my mission accomplished.
Let’s say the keyboard in your laptop stopped working properly and you decided to install a new keyboard yourself. You disassembled the laptop, removed the keyboard, tried to unlock the keyboard connector and… OHH! MAN!… a piece of the locking clip on the connector got broken!
What can you do? Unfortunately, you don’t have a lot of options. The keyboard connector is permanently soldered to the motherboard and cannot be replaced at home. If the connector was damaged, you’ll have to replace the whole motherboard, use the laptop with an external USB keyboard, or…. try the following trick. Hopefully it works or you.
The keyboard cable is locked inside the connector on the motherboard. In order to remove the keyboard, you have to unlock the connector and release the cable.
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Read the rest of this entry »
Here’s how you can fix, or to be precise, work around some hardware problem without taking apart the laptop.
1. Network port failure.
In most laptops the network port (aka RJ-45 port) is soldered directly to the motherboard. If for some reason the network port fails (I’m talking about hardware, not software failure), the whole motherboard has to be replaced.
Instead of replacing the motherboard, you can use a PCMCIA network card (aka LAN PC card). You plug this card into the available PC slot in your laptop and get a network port instead.
In this post I explain how I test the LCD screen inverter board in a laptop computer.
The screen inverter failure is very similar to the backlight lamp failure. In both cases the screen gets very dark and the image on the screen becomes very faint, barely visible under a bright light.
If you suspect the inverter board failure, I know only one reliable way to test that. It’s either replacing the inverter board with a known good one and see if it works, or connecting a known good backlight lamp and see if your presumably bad inverter lights it up.
In most cases I go with the second method – testing the laptop with a known good backlight lamp. Why? Because backlight lamps are pretty much universal. The same backlight lamp will work with many different inverters as long as they have matching connectors. I’ll talk about these connectors later.
The inverter board is located inside the display panel under the LCD screen. In most laptops you can access the inverter board if you remove the LCD screen bezel. The inverter board has connectors on both ends. Read the rest of this entry »
In order to replace the power jack in your laptop you’ll have to remove the jack from the motherboard as I explained in the previous post: Replacing DC power jack.
While removing the jack you can accidentally pull out the internal copper coating (I’ll call it a sleeve) from the inside of the “+” terminal as it shown on the picture below.
While removing the jack you can accidentally pull out the internal copper coating (I’ll call it a sleeve) from the inside of the “+” terminal as it shown on the picture below.
The internal copper sleeve has been removed and cannot be installed back. If you solder the power jack back on the motherboard without this sleeve it might work but the connection between the “+” lead and motherboard will not be reliable.
In the following guide I explain how to fortify a damaged power jack connection. You can use this repair technique in some laptops with similar power jacks.
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