Canon Rebel T3i drop damage on LCD

I'm assuming I can diagnose and repair this camera without a lens attached.

Canon EOS Rebel T3i was dropped. When I insert an SD for the first time, the camera creates the DCIM\EOSMISC directory and creates the M0100.ctg file inside it.

The screen generates a backlight, but no image. Pressing Menu (and perhaps the Info) button seems to toggle the backlighting (and/or image).

The screen actually looks intact - I fail to see cracks.

I'm thinking about three parts that could be bad:

1. Screen

2. LCD Display Screen Board PCB DH2826

3. Blue cable connecting the body to the Screen Board PCB

I know the Screen and Screen Board are available for purchase separately. I hope the blue cable is still intact. What else can I do to pinpoint which part(s) need replacing?