Question about Toshiba SYSTEM BOARD FOR 425CDS & 420CDS FV4SY2 Motherboard

1 Answer

Toshiba Satallite Pro 420CDS No Picture on Screen

I was given an old Notebook as above for the kids to play with, but when switched on the monitor does not work, try an external one that also didn't work. and idea what it could be please people.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    Visited the website for 3 consecutive days.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 59 Answers
Re: Toshiba Satallite Pro 420CDS No Picture on Screen

Thats a pretty old notebook now so not surprising it isn't working.

First thing to check is that the power supply is still working in the notebook as from memory it was built into the notebook back then so there would only be an AC input socket on the back of the notebook. Does an Amber light come on when plugged into power?

Does the laptop make a sound when you turn it on, either just the fan or hard drive spinning, or does it make any beeps?

If it does indeed power up, I would check that the RAM module is seated well and it's contacts are clean.

Due to it's age it's probably not worth trying many other things as it would cost more in parts than the notebook is worth.

Posted on Jan 21, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Compaq q1859 monitor

Hmmm, sleep/suspend mode is only supposed to happen when it doesn't sense any movement from the mouse, it also shouldn't suspend if you are in full-screen either. So if you are playing a game that shouldn't happen at all... as a test you should put the "turn off the display" to "never" and see if it still happens.
I have this happen when watching Netflix, if I don't move the mouse my TV will go into suspend mode, even though I am in full screen... I think my issue however is related to the fact that I am using HDMI to connect to my TV from my computer... I have not solved this issue yet!

Oct 15, 2013 | Motherboards

1 Answer

L19wa monitor

It could be your sound cable is detached. it could be the inbuilt amplifier has failed.

Apr 24, 2013 | Motherboards

1 Answer

I am trying to connect a Toshiba flat screen television to a gateway laptop but am unable to get a picture on the TV once connected.

Do your tv have vga input if yes connect to it asn connect the other end to u\your laptop vga out and then go to the display setting it will be detected in the setting tab one detected just check the checkbox stating extend my desk to to this monitor by selecting the monitor 2 thats it.


May 16, 2011 | Motherboards

1 Answer


Find a friend with an external monitor and connect the laptop to it. On your keyboard will be a combination of the fn key and one of the f keys above that transfers the signal to the external monitor. If you get a fine picture there, you'll know you can only have one of 3 problems.
1. Your screen inverter has shorted out
2. Your backlight has burned out insode the LCD
3. The LCD itself has failed.

You can make your choices from there. If you get NO picture on the external screen, you'll know the video chip on the motherboard has failed.

Best of luck

Apr 01, 2010 | Motherboards

1 Answer

Hello, My Asus P4P800 SE motherboard has stopped recognizing my monitor LG Flatron 22'' . I have 2 PCs connected by a KVM switch. When I boot machine A, the monitor stays black. When I put the video card...

test both machines one at a time on the monitor without the kvm switch then hook up the kvm switch to machine A if all works well power off then hook up machine B and see what happens, it maybe that the switch is set to the other pc than the one you want to use first so the screen stays black untill its switched over

Oct 03, 2009 | ASUS Motherboards

1 Answer

New computer build no monitor screen

Hi there. I had the same problem. Come to find out 1 stick of my new memory was bad. Hope this helps, Steve

Apr 17, 2009 | ASUS Motherboards

1 Answer

Dual monitors

Most laptops have a function key to set which monitor is active. By toggling this key, you switch between laptop screen, external screen, and both.
On the keyboard, the key is usually Fn pushed together with one of the function keys that has a monitor logo above it.

Jul 22, 2008 | Intel Motherboard

2 Answers

AUS A7N8X -X Mother board AMDAthlon 27648 CPU No picture

if this is a built sustem out of the box with old monitor try another monitor oddly enough some arent compatible, you can check by looking at the prong patern.

May 10, 2008 | ASUS P5K Deluxe/WiFi-AP, iP35, S 775,...

1 Answer

No display on my sony vaio :-(

ok " try going into control panel , find monitor and click on it
go into advanced setting and see if you can reset it.

also : there is a thin cable that runs from the computer to the screen , it may have to be replaced if worn or broken.

Jan 20, 2008 | Sony MBX-49 ASSY Motherboard

Not finding what you are looking for?
Motherboards Logo

Related Topics:

64 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Motherboards Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Brad Brown

Level 3 Expert

13362 Answers


Level 3 Expert

5660 Answers

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

Answer questions

Manuals & User Guides