Integra receiver -- white noise


Hoping someone can help me fix an issue.

I have an Integra receiver that suddenly started to emit white noise instead of the audio track for all inputs (even inputs not connected to anything).

All I get is white noise when watching TV, DVD or listening to music from an iPod (connected via RCA in the front of the unit, Video 4).

The video when watching TV is also jittery / shaky every few seconds.

Is this something I can fix myself (amateur)?
Some of the newer Integra's require firmware updates. Check on their website in the Support section to see if any apply to you.
Thanks. I'll check.

But would needing new firmware result in sudden white noise issues? Perhaps some SW suddenly went bad?
I have a DTR6.5 -- doesn't seem like there any firmware updates available.