Son hit screen with toy now blank white with colored lines from top to bottom where it got hit, can it be fixed?

Hello trittd23, yes you need to replace it because broken panel can't be fixed.

hi howey ja07,
Unfortunately, cracked TFT can't repair.
Replace panel with the one.

Sounds like the video card is going or has gone out

Problem #1) Convergence

Symptoms:

• Screen Looks 3D
• Colors wont align
• Video may look distorted

Problem #2 CRT Fluid has clouded over. Symtoms

• Dull looking video
• White looking video
• Halos around objects
• Red/Orange looking video

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

repair ur keyboard or change it.

it might be water damage or he might have dropped it and it hit the ground really hard.

as a general rule, vertical faults can be divided into two types: ones that cause geometric distortion (a circle will not be round) and those that simply black out a portion of the screen. the former are faults in the vertical oscillator, drive, or output stages. the latter are blanking faults. blanking faults are almost always caused by electrolytic capacitors changing value and thereby changing the timing of the pulses which blank the screen during vertical retrace. In other words, the pulses are turning off the video signals at the wrong time. the most common true vertical fault is geometric distortion and a foldover of white lines at the top of the screen. this is almost always caused by the electrolytic capacitor on or near the collector of the vertical output transistor or part of the IC which has the supply voltage (B+) on it. In the old tube days, the general rule was that bottom distortion was in the cathode of the output tube and distortion at the top was caused by a fault in the drive circuit. this may help the solution!!

try pulging the wire out and back in should fix the problem

Might be worth taking it into a phone repair shop to see if they can replace the LCD screen. (yes, a phone repair shop - a lot of them do portable console screens too!) If they can't do it, it's probably unfixable realistically.