No Display on Toshiba laptop screen

kimsland January 3, 2010 at 22:03:31

Try this: Remove all power (power cable and large battery) Hold the ON button in for 20secs (dispersing internal voltage) Put the powered power cable back in (leaving the battery out) Turn on Did it work? If so, shutdown normally and refit the battery. You're good to go :)

Thank you for the post, I tried as you suggested; still there is no display.

kimsland January 3, 2010 at 23:39:15

Do the above again, but before attaching the power cable (only) Reseat the internal Ram and Hard Drive Also disconnect all external plugged in devices, including the CRT Then plug the power back in, and test again (here's hoping)

I tried first with no power plug and no battery but still no display. Again I tried it with the hard disk and RAM chips disconnected, still no display. And I think there should be a beep sound upon trying to power on after disconnecting all the RAM chips, I don't hear any. could it be a video controller issue? because everything seems to work normal except no display on the screen, the hard drive diode lits, the cd-drive spins and the fan also spins.

kimsland January 4, 2010 at 04:33:36

If you think its starting (without display) Then after it finally boots to Windows (maybe) you could try pressing Ctrl +Alt+Del on the keyboard to see if the Hard Drive led flashes or not (and then ESC to exit) Or press F1 key to open Help and Support (that would get the LED flashing away) If you are sure that Windows has loaded without display, then I would say the likelihood of "video controller issue" would be extremely high, basically Mobo fault

I did try pressing CTR+ALT+DEL and even F1, yet the hard drive led didn't flash. It flashes when I press the power on button but not afterwards. Please, don't tell me I'm going to loose my laptop. Is there any option I may try?

kimsland January 4, 2010 at 06:46:18

Actually that result is better than a blank screen at Windows (which would have been either a faulty LCD screen, or faulty MOBO Now we know that its not actually booting up, this could just be faulty Ram, or a CPU that requires re-seating (it could even be internal dust) Hm, actually it could also be a faulty Hard Drive (I think I have covered all, except the Mobo) So how good are you at dismantling the laptop and starting by removing all dust?

Sorry for being late. I'm ok at dismantling the laptop. I've already tried to re-seat the CPU and the video cable. That didn't work for me. Now I'm going to dismantle it and blow the dust inside. I will post the result soon. Thank you for your co-operation, I deeply appreciate it.

kimsland January 4, 2010 at 21:53:43

No problems I was informing someone today on a similar issue I stated that you are best to purchase Circuit Board Cleaner to spray everything on the disassembled board, then wait a day for it to dry Then refit the main parts and test again