Black screen on toshiba satellite laptop help

RRB3143

Honorable
Dec 2, 2013
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10,510
I have a Toshiba Satellite L505D-S5983 laptop of my brothers that stopped working on him, so I took a look at it sence I know about computers and he dont.
The problem its haveing is that the whole time he had it. At night before bed he would just close the lid and in the morning and it would be on the same screen he was looking at the previous night. So one morning after waking up he went to lift the lid and all he got was a black screen. There are two green lcd lights that light up in the front below the spacebar. I can hear the fan kick on and possible the hard drive. But there are no lights on the keyboard for like the Num Lock and the Cap Lock. I have a Toshiba Satellite L655-S5096 which i needed a DVD Drive so I swaped my brothers out with myne. And now when I start up my brothers laptop the dvd drive opens. I have already tryed taking the memory out and checking each by them selves. Tryed with taking out the hard drive out and starting it and then turning it off and putting the hard drive back infrom his laptop and restarting with no luck. Also took battery out and unpluged it and held down the power button for a minute and tryed starting it with just the battery and just the power cord and both and still so action. I tryed hooking a HDMI from the laptop to the tv with no luck and i even tryed using a old monitor and connected the VGA end to the laptop and before turning on the laptop the monitor had a green light on and when i turned on the laptop while it connected to the monitor the green light went to a yellow light. I also help a light in front of the monitor screen to see if anything shows up like it shows to do online...
Thats about it on what I tryed. Any suggestions would be very much helpful on helping to troubleshoot this more to see if its worth keeping or is the motherboard fried..
Thanks, Rob
 

way2aware

Honorable
Dec 26, 2013
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10,520
Sounds like you've went through all the preliminary troubleshooting pretty well all ready, and from what you've described here, the graphics adapter is bad. It might be fairly cheap to get a used mobo for that model on Ebay, or if you are comfortable with the 'reflowing process' you might give that a shot. Check out a tutorial on it on youtube to get familiarized with it
 

RRB3143

Honorable
Dec 2, 2013
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10,510
I read about using the kitchen oven to do the reflowing process. Two things that I wonder about?
1. How and where to find how to disassemble the laptop to get the mobo out.
2. It said that you will want to clean your oven of any fumes before cooking after doing the process. How bad does it do to the oven?
 

Kent Farquhar

Commendable
Feb 15, 2016
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1,510