When I use my toshiba laptop with battery
the screen is perfect but when I plug it to
the AC outlet the screen become dark.
What I need to check?
You might have reduced the screen brightness on AC power in the power
management settings. Does the laptop work otherwise on AC?
it starts on the left and the longer i use it the darker it gets. as i write this i cant see the screen ii am holding it up to the window to see it.... by the way this lap top is less than 2 years old and the first time i had this problem it was just out of warranty .i have had 3 invertrs replaced so far, getting to be pain cos the time scale of use is very short indeed, approx 10 hours of use between changing
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Re: When I use my toshiba laptop with battery
If I get what your saying, the bulb is getting dimmer as you use it. Almost all of the laptops I have worked on with what your describing it is an inverter or a bulb. If it has dark on the sides and then goes dark it may be the bulb going bad which can make the inverter go bad. Just like having bad bulbs in a flourecent light can make the ballast bad.
I would get an inverter from ebay and install it. Its really pretty easy to change (normally). I see you had this done under warranty before. If you dont know how to do this I can tell you how. Get the inverter first and a small screwdriver set then if you need help I posted a description to another persons question and told them how to change the bulb. You should be able to get the idea about the inverter swap from that post or contact me. Hope this helps... Dale
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Please check connecting an external keyboard, if it works then please proceed with the following steps:
You need to refer to your laptop manual and remove your keyboard and reseat the connections. If that works, great, else the problem could be withe the Keyboard or the connector. It is time you contacted Toshiba if the above steps do not help or you have to search for Toshiba spares and locate the keyboard for your laptop (assuming the connector on the motherboard is working fine)
verify that the P/N switch is set to the color system of your country. N (NTSC) for US and P for most of Euroope and Australia;
depending on how "old" the TV, the Screen Resolution of the Toshiba may have to be brought down to the lowest possible setting;
additionally, the Screen Refresh Rate may likewise need to be lowered say 60 Hz;
all of the connections you mentioned are video connections. However, only 1 should be used. You may have to experiment (again depending on the TV) which setting & connection would give you the best picture;
offhand, the component connection (if applicable, the red/green/blue cable) would give the best connection followed by S-Video and last would be yellow (composite).
I was having this problem also. I originally plugged my 3 video cables into the VCR outlets in the front of the vcr. I finally turned the vcr around and found two other sets of video out plugs. One was to a dvd/dvr and the other was a vcr out. I took the plugs from the front of the vcr and plugged it into the dvd/dvr out and it worked! Good luck with your problem. Hope the resolution is just as simple.
Yes you are 50% right. The problem with your laptop is either the inverter module or the backlight itself. If you have a little electronic background and have the correct tools, you might be able to repair it. Although, its more practical to replace it with a new one. It is normally located on the lower front part of your LCD panel. If you can remove the front cover of the display, the you will find it on the lower part. It normally have two connectors, one comes from the mainboard, and another (2 wires) goes directly to the backlight.
sounds like a common promblem we run into my suggestion is that either you buy a new mother board or buy the new power plug in and have some one cold solder it back on ..... look on ebay for power plug input they sale them for $66.00 but solderning them is the promblem also they have people in ebay and in other enternet to fix this promblem if you can take it apart ,
and send mother board it will cost you $99.00 dollars lala linda
You will constantly draw power from the outlet. Though it may not be as much draw as if you were running a device on it. Try picking up the AC adapter one day when not plugged in to the laptop. It still gets hot.
On another note,
When using AC power you should ALWAYS plug it into the back of the device before plugging it into the wall outlet to avoid excessive power surge.