LCD Power Inverter Problems? - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > Laptops and Notebooks
Closed Thread
Thread Tools Display Modes
Old 07-07-2008, 09:14 AM   #1 (permalink)
Super Techie
Join Date: Jan 2004
Posts: 272
Default LCD Power Inverter Problems?

I have an Averatec 3700 Laptop that had a bad LCD power inverter (the screen would momentarily flash on when power was connected, but would then immediately shut off). I ordered a replacement inverter but when I plugged it in, the backlight was so dim you almost couldn't tell it was on at all. It slowly warmed up to where the screen was usable, but the backlighting is uneven and much darker on the left side of the screen. The new inverter is running extremely hot to the touch. Hot enough I think it could cause a burn if you touched it long enough.

Does this sound like a problem with my new inverter or something else?

Blizzard596 is offline  
Old 07-10-2008, 10:39 AM   #2 (permalink)
Newb Techie
Join Date: Jul 2008
Posts: 6
Default Re: LCD Power Inverter Problems?

Inverters tend to get a little warm because they do change the voltage for the lcd. There are a few different variables that it could be here. If you hook up the old inverter to the screen does the whole screen light up ok when you can see it (ex. is it dim like the new one). Was the inverter that you ordered a new one or a used one? This could also be the bulb in the lcd that is causing it. Please let me know the answers to the questions above and I can further assist.

ngreenwood6 is offline  
Old 07-10-2008, 10:58 PM   #3 (permalink)
Super Techie
Join Date: Jul 2006
Location: eastcoast
Posts: 453
Default Re: LCD Power Inverter Problems?

all the inverter does is change dc voltage to AC for the flourescent lamp in the LCD. They are actually not a "power" inverter, they are more a phase inverter. I would connect a monitor up to the D sub VGA connector on the back / side of your notebook and compare what you see on the LCD and monitor. You may have to switch from one to the other.
LA1 is offline  
Old 07-11-2008, 12:35 PM   #4 (permalink)
Join Date: Nov 2006
Location: Illinois, USA
Posts: 2,363
Default Re: LCD Power Inverter Problems?

It could then be a bad power supply to the inverter, or it could be a dying fluorescent bulb (regular tubes can light unevenly when they are dying).

CalcProgrammer1 is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
power problems taintedplay New Systems | Building and Buying 4 05-22-2008 02:57 PM
I want a new video card. Silverfury New Systems | Building and Buying 25 04-09-2008 12:05 AM
Built a new computer...NO POWER!!! HELP!!! imconfused System Upgrades 33 11-26-2007 07:32 PM
New power supply, new problems spoken812 System Upgrades 7 11-18-2007 05:54 PM
Antec Sonata II Power Problem: BSoderstrom Hardware Repairs and Troubleshooting 3 06-12-2007 04:27 PM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:49 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.