I have a first-generation 20 GB Playstation 3. When I turn it on, it appears to start up, but the video is heavily distorted (attached image). However, my problem isn't only the video distortion because the PS3 doesn't understand input coming from the controller (I can't blindly navigate the XMB when it's on).
Twice I've been able to fully launch the OS - once I even updated the firmware to the most recent version. Most times I see a blank screen with the distortion. Occasionally my TV receives no input.
To test if it was a hard drive issue, I switched the current hard drive for the original drive the system came with (which still had the OS installed), but the same problem persisted.
Any ideas on what I can do to fix this problem?