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PODxt Pro not receiving input signal

podxt pro usb firmware

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#1 JeffGoobs

JeffGoobs

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Posted 15 May 2014 - 12:22 AM

Greetings,

 

I stopped getting an input signal on my PODxt Pro. I tried various guitar cables, and I reinstalled the 3.02 firmware from the Line 6 Monkey. Nothing else is plugged into the unit other than the AC cable and the input cable. It's clearly not a setting; I can't even get a signal to use the tuner. Seems like a hardware issue, but here's how I've troubleshot this so far; perhaps I've missed something obvious along the way.

 

First of all, it would seem that after some searching, that this issue is not unique to me. Also, for what it's worth, I had (for some reason) version 1.14 of the USB firmware on the unit, despite the fact that the current version was listed as 1.12 in the Monkey. Thinking that this might be the problem, I tried restoring the current version of the USB firmware back to version 1.12, so that they matched. No dice. Repeated power cycles do nothing, and the line level input on the back isn't getting any input signal either. Sending a clean guitar signal through USB doesn't work either, so it obviously isn't getting any signal at the front end. The signal light on the front remains perpetually dark. I have all model packs installed, and the unit has been sitting in a climate controlled rack in a studio, so it is in mint condition. I am at a loss, and am not sure what to do, as I rely on this in my studio. 

 

Another follow-up question... Since I rolled back the USB firmware to 1.12, there doesn't now seem to be a way to get it back to 1.14. Most reports I see say that 1.14 is the latest version of the USB firmware, yet the Line 6 Monkey is telling me that 1.12 is the latest. Was there an issue discovered with version 1.14 of the USB firmware such that it was removed from the update servers?

 

I also ran the entire update process again from another computer with a different USB cable. Same deal. Another thing to note is that while the device is fully recognized through the OS, and the MIDI functionality seems to be fine, the audio interface element of the PODxt Pro is not functioning properly. The device is recognized in the Sound System Preference (and the Audio/MIDI Setup) but sound will not come out of it for regular computer sound output (like iTunes, for example.) In addition to this, I just noticed a slight but audible buzzing/hum sound inconsistently coming from the unit, which sounds similar to an alternating current's 60 Hz hum sometimes caused by EMI or a ground loop. I've never noticed this until right now. A power cycle of the unit lessened it to some degree, but it's still there faintly, which obviously causes further concern.

 

Has anyone else with a PODxt Pro experienced anything like this? I'm sure the answer is what I don't want to hear: that I'll need to take it to a service center.

 

Thanks in advance,

Jeff


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