Question about Toshiba Computers & Internet

1 Answer

My computer toshiba is not turning on

The screen does not turn on at all. It has no light but the charger light is the only light that turns on.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Toshiba Master
  • 5,660 Answers

6 - SUGGESTED SOLUTIONS

I would like you to read that part. Means somewhere, someone, (Staff?), has taken it upon themselves to attach previous solutions, to your posted problem.
(They do it with my previous solutions given, also)

I have seen, "Gary Oldman plays the Bagpipes for You", and, "20 Ways to Knit a Cardigan Sweater"; given as solutions in the computer category. Guess you should feel special, that the suggested solutions even come close.......lol!

A) Nope. It is NOT an obvious 'board issue'. (Reference is to the motherboard)

B) Screen turns Black means a problem with the screen.

Really? (You're going to post that on a the world's largest product support website, and with REAL technical experts in this field looking on? Yeah,...Right!)
(....after all these were done, you must definitely get ride to this mura.......!O_O! What does THAT mean????????????)

Moving on.............

DIAGNOSE

Leave the guessing to those who like to play games.

("I bet aliens in the middle of the night, came down and put a virus in your laptop. If just the LED light on the 'charger' lights up, you know you've been had! Put a tinfoil hat on to protect yourself!")

1) The 'charger' in reference is an AC adapter. It converts the AC electricity from your home, or business; into a low DC Voltage.
(Can also be said as low DC electricity)

The LED light on the AC adapter, is an indication the AC adapter IS receiving power.
NOT an indication the AC adapter is working.

AC adapter is tested with a multimeter. See if it is putting out the correct voltage.
On the AC adapter in a label, is the Input voltage, and the Output voltage.
Example: Input: 100 ~ 240VAC @ 50 ~60Hz
Output: 19VDC @ 4.34A

Means the AC adapter can use AC electricity, that is from 100 to 240 Volts, and either 50 Cycles per Second, or 60 Cycles per Second.
Hz = Hertz. Hertz stands for Cycles per Second

Output is 19 Volts DC, and at 4.34 Amperes
The number to be concerned with here is the 19 Volts (DC)
19 Volts (DC), or VERY close; is what should come out of the cable, that plugs into the laptop.

Also suggest have an assistant gently wiggle the cable, that goes from the AC adapter TO the laptop.
If there is an intermittent reading on the multimeter, this suggests there is a broken wire in that cable.
Same procedure for the power cable TO AC adapter.

Not feasible for you, then take to nearest small computer shop, and have the resident tech check it out. Should only be a couple of bucks.

Tech indicates it's bad, has a new one, or universal one they will sell you? I think I would take my old AC adapter, and leave. May be on the up and up, may not.
If it is said that the AC adapter is bad, and you can buy a universal one almost anywhere; THEN I would tend to believe the person.

AC adapter needs to be working, and correctly. (Proper output voltage)
Charges the Battery, and also can power the laptop by itself.

2) DC Power Jack:
The DC Power Jack is the jack on the laptop (DC_IN), that the AC adapter plugs into.
If there is a problem with this jack, the laptop will not receive power.

There are various styles of DC Power Jacks.
Most common is the style, that has a large Center Pin in the middle.
AC adapter removed, Battery removed; a small object is used to GENTLY see, if the Center Pin can be moved.
ANY perceptible movement of the Center Pin, indicates replace DC Power Jack.

With the older style of laptops, the DC Power Jack is soldered directly to the motherboard.
With the newer style it is not.
The DC Power Jack has wires coming from it, (Cable), and they end in a male plug connector.
It is now referenced as a DC Power Harness.
Much easier to replace, than the old soldered on version.

3) Bad Power On switch.
It's a small carbon button switch, and they do go bad.

4) All of the above checks out, then the problem is the 'board'.
Motherboard.

More specifically small electronic parts on the motherboard, have gone to the 'Great Electronic Parts store in the sky'.
(How's that for technical? lol!)

Usually Power MOSFET's on the motherboard.
Many people then replace the motherboard. Some of us do not.

Using the HP Pavilion dv6000 series, and Pavilion dv9000 series; of Notebook PC's for an example,

http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html

Here we see the Fairchild Semiconductor Industries - FDS6679 - Power MOSFET, and Alpha & Omega Semiconductor LTD - AO4407 - Power MOSFET; is being used.

Both are Obsolete now, but there are cross-reference examples given. FDS6679 cross-reference example,

http://www.mouser.com/ProductDetail/Fairchild-Semiconductor/FDS6679AZ/?qs=sGAEpiMZZMshyDBzk1%2fWi1qxDdW%2fXBi2qgMuZEfLVO4%3d

One dollar and one penny - USD

http://www.youtube.com/watch?v=3NN7UGWYmBY

Price of replacement motherboard? Averages from $50 to $250
Also add labor cost.

HOWEVER, there is more information that I need from you;

1) You indicate, "The screen does not turn on at all. It has no light but the charger light is the only light that turns on."

Meaning ONLY the AC adapter's Power On LED lights up?
No Battery LED light on the laptop?
The small fan is not running?

Makes a BIG difference if the fan is running.

Also post the laptop manufacturer, and model number.
The model number is on the Bottom of the laptop.

Using Compaq and HP laptops as an example, post the Product Number.
This is P/N in the white Service Tag, on the bottom of the laptop.

Post back in a Comment.
Regards,
joecoolvette

Posted on May 06, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
tunji4lfe4re
  • 1 Answer

SOURCE: Screen went black while using my toshiba satellite

My own suggestion to this problem is that, when the screen trurned to black like that means that somethng has happened to your screen. Then, you needs to trubleshoot you pc, in what ways? Simple plug your pc with the recommended adapter and start pressing your caps lock to find out whether the blue light will comes up, when the blue light comes up, your pc is ok, then, your have to deal with the screen first check the screen module as well as flex cable at the back of your pc after all these were done, you must definitely get ride to this mura.

Posted on Apr 28, 2009

  • 157 Answers

SOURCE: My Toshiba Satellite won't turn on at all

If no lights/nothing happens when you press the power button then you probably have a corroded power socket on your motherboard, the positive terminal will not be connecting properly to the motherboard. The laptop needs to be dismantled and have the socket resoldered properly. This can cost quite a bit at most places. I would check the charger first to make sure it is not the problem.

Posted on Jun 16, 2009

  • 84 Answers

SOURCE: turn on computer light coms on boot screen doesnt

Check the processor fixed with the motherboard properly

Posted on Aug 24, 2009

  • 29 Answers

SOURCE: toshiba satellite a40-s270 won't turn on

Either the power supply is not working or the battery has failed and will not hold a charge. If the laptop is 3 or more years old, the battery is the likely suspect.

Posted on Feb 12, 2010

SOURCE: toshiba sattelite, no display with charger

Charger is faulty, must get new one.

Posted on Feb 28, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My toshiba at200 table 10.1 wont turn on


1. When you press the power button to turn it on, do you see any thing on screen, like the toshiba boot up screen or something like that. Or is it completely blank (black color) always.

2. Can you see a faint image of your desktop (try to see it in dark place with flash light). This is important to confirm.

3. Also, when you press power button, do you see the LED lights on laptop blinking or solid green (which ones are in blinking/solid) and do hear any sound ? Or do you feel that your laptop doesnt even try to boot.

4. Can you hear any Beeps when you try to turn on the computer. If yes, what is the sequence of those beeps.

Continued......
If you answers are -
1.
blank
2.
no image
3.
only the satellite light is blue, the powercord is blue and the battery is blue
4.
no noise

Please do the following carefully and let me know result :
1. Shutdown and Unplug your laptop.
2. Remove the battery from the laptop.
3. Wait 2-3 minutes
4. Now press ON (power button on laptop) for 1 minute
5. Then release the finger and wait one more minute.
6. Now plug in the power cable (dont insert battery yet) and press ON button.
7. Did your screen start working now ? (do you see windows loading)


Jan 04, 2015 | Video Game Consoles & Games

1 Answer

What's your problem?toshiba satellite l555 s7916 wil not boot


Try Resetting the CMOS on your Motherboard.
Turn off the Laptop and unplug it
Remove the battery
undo the RAM cover
Remove the RAM
plug the laptop into the power
Turn the PC on and listen for some beeping noises
If you hear the beeping noises turn the laptop back off
Unplug the charger
Replace the RAM into the RAM slots
Replace the the battery
Plug in the laptop and power it up.

if you get video output, that's Great, if not, it's possible that you have a faulty screen

Oct 05, 2012 | Toshiba Satellite L555-S7916 Notebook

1 Answer

Error code orange light flashes toshiba a10


This indicates a motherboard issue, I would suggest a professional at this point to access if it can be fixed at a realistic cost.

Mar 08, 2012 | Computers & Internet

2 Answers

When I turned on my laptop today the screen did not turn on. The green light is on, on the keyboard so looks like the computer is on but there is nothing on the screen. Any suggestions


try to do a power drain by removing the battery and anything connected to it..> press power button for 1minute > plug back in the charger and after few secs try to turn it on...

May 12, 2011 | Toshiba Satellite L500 Series Notebook

3 Answers

Reset button ?


Sometimes there is a reset button and sometimes you have to reset it through a menu. Of course, if it won't turn on, then you can't get to the menus.

May I ask, what is you Toshiba camcorder's model #?

Jul 31, 2010 | Toshiba Video Cameras

2 Answers

Why the screen of x205-sli1 off when power on?


If there are 3 beeps when you power on, most probable it is because of the memory.
Steps for Troubleshooting

Note:remove any source of power first ...

1. Try removing the memory
2. Clean the memory using a white pencil eraser
3. Boot up the laptop without the memory
- You will hear a beep not like the 3 beeps you heard.
4. Turn off the computer again and put back the memory.
5. Then try booting up again.

Hope it helps.

Jan 10, 2010 | Toshiba Satellite X205-S9349 Notebook

1 Answer

Hi i have a toshiba a135-s2386 laptop, when i press the power switch the main power light comes on and fan spins but the pc does not post at all


Try doing this: Turn off the computer. Disconnect your charger. Take out the battery. Then without the charger and the battery, press and hold the power button for around 10-15 seconds to drain all the excess power inside it. Reconnect your charger then turn it on. If it turns on, then good. You may put the battery back afterwards. If it did not turn on then it could either be software or hardware failure already.

Dec 14, 2009 | Toshiba Satellite A135-S2386 Notebook

1 Answer

Toshiba laptop power light is on but nothing is working


When you turn the computer ON, can you hear something running on the laptop? If yes, have you tried taking out the battery & just turn the computer ON with the ac charger plugged-in? If you tried to turn ON the computer with the fully charged battery with the above troubleshooting but still there's no display on the screen, then I think there's something wrong with your hardware (maybe the LCD or the motherboard). You could also try using an external monitor to test if it's your LCD that's defective, if not it's your systemboard. Try calling their tech support hotline.

Hope this helps.

Sep 21, 2008 | Toshiba Satellite A135-S4527 Notebook

1 Answer

Toshiba TECRA A8 won't turn on


if you plugin the charger and the light in the charger remains that is does not flicker but when you plug it to the laptop it flickers the you have a problem with your motherboard. easily solved with a solder iron and the know how. but if you a novice take it to a prof.

Apr 13, 2008 | Toshiba Tecra A7-S712 Notebook

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

71 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18394 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

k24674

Level 3 Expert

7993 Answers

Are you a Toshiba Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...