Laptop problem: Toshiba Satellite M35X-S149 has no video. The customer complained that the laptop LCD video just disappeared without any reason. When he starts the laptop the screen lights but there in no data on it.
Laptop diagnostics: I started the laptop normally and LED showed normal activity. The hard drive started spinning. The LCD screen lighted but it was solid white color without any data on it.
Laptop repair process: when I get a laptop for repair with video problem, I always start with checking an external video. I connected the laptop to the external CRT monitor and started the laptop. The external video was fine and the laptop booted to Windows without any problem. Usually, if the external video is fine, the system board is good and the problem is in the LCD itself, in the video cable or in a bad connection between the LCD and the system board. On the next step, I removed the keyboard and reseated the display video cable on the system board, but it didn’t fix the problem. The laptop still booted without any data on the screen. Finally, I opened up the LCD display and found that the video cable connector on the back of the LCD screen was half way out. I reseated the connector and restarted the laptop. This time the laptop started normally and I got internal video. So, if your laptop starts with solid white screen without any data on it, try to reseat the video cable connector on the back of the LCD screen.
The following guides could be helpful for you:
Complete Toshiba Satellite M35X disassembly guide with instructions
Removing LCD, inverter board, video cable
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September 25th, 2009 at 2:08 pm
I wonder if you can advise. My A30’s video out does not appear to work anymore. It use to but had a cable connected to my tv when we had a power cut… that was it it still thinks it is switching from the laptop screen to the external screen but nothing comes up on the external screen.
May 23rd, 2009 at 6:13 am
Hi,I have a problem with my hp nx7300 laptop,it doesnt’start anymore, I found the problem TPS51120(stand by power 5v,3.3V and drives the mos transistors),and VK1 which is located under modem,and in it enters the 5V stand by current.
I post some photos with them
http://img379.imageshack.us/img379/3620/vk1.jpg
http://img90.imageshack.us/img.....01193t.jpg
Please help me,you’ve my email address,thanks
March 13th, 2009 at 9:38 am
I have a Gateway 280 laptop that has an issue with external monitor. There are times when I connect an external monitor and then switch the laptop LCD to the external display and the external display has a major green tint to it. You can see the icons, with a little skewing of font image, but the entire screen has a green look to it. I tried another cable, no luck. The crazy thing is that when I connect it to a projector system at work, the projector does not even see the laptop. The message on the projector screen just says “no signal”. When I connect the projector then reboot the machine, Windows boots up with the image on the external monitor, but by the time it reaches the log-in screen, it disappears again. After log-in, there is nothing on the projector screen. The vga connector port on the laptop seems fine, but what gives? Please help. I will have to buy another laptop if I cannot get this fixed by this weekend.