Pro r060u was working fine. Turned it off now can't get signal through any input?

The amp is clipping the signal. This could be from the input being too high. The impedance being too low or the finals are damaged.

This unit is a pro unit that makes use of XLR type inputs. These are typically at +4 dBm signal level not that of the -10 from RCA type mixing boards. So what you need to do is take the RCA outputs from your source and hook them to a IHF or unbalanced to Balanced converter and they are available from MCM Electronics. This device here should take care of the problem.
http://www.mcmelectronics.com/product/555-8485

If your Playstation is putting out the signal in 1080p then try changing it to 1080i and see if that works. Not all TVs are compatible with 1080p.

There is no signal coming from your PC.
excuse some of the solutions as sounding dumb, but we have to explore all possibilities.

Check the power cable going into the computer
Check the power input disconnect switch on the back of the power supply and make sure it is on
If the pc is plugged into a power bar, make sure it is turned on and the breaker isn't tripped
press power on the PC and make sure the lights are coming on.

now for the solutions that may actually help.

disconnect the power from the PC
if the video is on a card, remove and re-seat the video card
hook the power back up, connect the monitor and try again.

the CMOS on the computer may need to be reset.
I hate totally clearing the CMOS, so what I usually do is remove 1 stick of ram and power up. If the system is alive again, power down, put the RAM back in and power back up.
If that doesn't work, turn the system off, put the CMOS jumper to the CLEAR position for 15 seconds, put it back to the Normal position and then power back up.

Basically, if the monitor works on your friends system but not on yours, the the problem is your system, not the monitor (assuming it isn't working fine til it gets into windows...if that's the problem, you have a driver or configuration problem)

Most sets will shut down very fast if no signal at all.

If you can before it shuts off try to change input to one of the rear audio video inputs that has something connected to it and turned on.

Failing there and if using a box of some type for signal--unplug it and the set both for a while---plug back both and let each try to boot up.

A total loss of signal or a glitch with the set or a box can confuse the TV set's Microprocessor.

I have the same problem. Here is what it looks like. Any ideas? This happens without any inputs. I'm using a macbook air on yosemite but I have tried it with ealier macs and still.

Sounds like a problem with the channel itself, if the clean channel works then its not the lead, input, guitar or the drivers. You have to be careful when opening up amps as some can hold a residual charge and there can be danger of electrocution.

I would recommend getting it looked at by a pro, it doesn't sound like an expensive fix.

So you're saying an unnamed mixer is feeding a potential analog signal to a CDR. You're monitoring the CDR output at an unnamed amp.

You haven't established that there is any signal to BE heard.

WHAT is the actual source sound device (BEFORE the mixer)? Is the source input visible on the CDR when it's in Record Mode?
Have you perused the manuals?

NEVER USE EXCEPTIONALLY HIGH VOLUME SETTINGS FOR TROUBLESHOOTING. If a signal is inaudible at half volume it's effectively not there. YOU WILL BLOW SOMETHING UP WHEN YOU FIND THE MISPLACED CONTROL AND FLIP IT.

you either have a cold solder joint or a bad capacitor or a bad input.
if it's only happening from one source, look to the source as the issue - there may be a DC voltage riding on the output into the amp, saturating the input until the caps charge...and if there's a bad cap on the input or output, it may take time for it to stabilize.
Meter the input at zero signal, and meter the output as well looking for DC voltage riding on it.
compare readings at zero signal between channels for discrepancies.
ground both inputs and start metering .
check the low ohm resistors between the output transistors unless it's a hybrid.
when I say transistors I mean mosfets.

Have you moved all of the switches, controls and RCA jacks to make sure that the problem isn't a dirty contact?

Have you tried swapping the RCA signal cable from a working channel to confirm that it's not a signal problem?

Have you swapped a speaker from a working channel to the dead channel to confirm that it's not a speaker problem?

It's unusual that one channel goes dead and the rest work.