Currently Being ModeratedAug 11, 2011 11:27 AM (in response to nat0)Re: Sound cuts out while playing
A couple of things you didn't mention you checked yet:
- definitely test with another guitar
- definitely test with all new cables (especially if you have several patch cables between FX)
Tyhe fact that the signal is intermittent when you stgrum loud to me at least, could mean a bad cable or even the input jack on your guitar.
Also, to be thorough, perhaps you can try backing your Vetta bundle up with Line 6 Monkey and reinstalling the flash memory on your Vetta. Here's a good FAQ that calls out how to do that: http://line6.com/support/docs/DOC-3762
Currently Being ModeratedAug 11, 2011 11:45 AM (in response to ricksox)Re: Sound cuts out while playing
I have tested with several guitars and several cables. I'm not running any external effects; the connection between the guitar and the amp is direct. And to be clear, the problem itself is intermittent, but when it occurs, the signal goes away completely. I can play normally and NO signal makes it through.
I just partially disassembled the amp and I noticed that the connector going from the input PCB was not properly seated into the header on the main board, so I've fixed that and now I'm going to see if the problem still occurs.
Currently Being ModeratedMar 31, 2012 8:30 AM (in response to nat0)Re: Sound cuts out while playing
Raising this post from the dead...
Having a similar issue here. Volume drops out, but then fades back in. Doesn't matter what patch. Cables/Guitars all changed and still have same issue. Guitar plugged directly elsewhere, full signal, no dropouts. Note, I've only tested the unbalanced outs, no idea if the same thing happens with XLR, AES or SPDIF.
Reconnected PCB points also, did not fix.
Any ideas, suggestions?
Thanks in advance!
Currently Being ModeratedMar 31, 2012 11:26 AM (in response to rdpete)Re: Sound cuts out while playing
It sounds like a bad solder joint or perhaps a bad component somewhere in the signal path. Probably a minor component like a cap, resistor or something. Sometime small hairline cracks develop in solder joints too, around component leads etc.
Intermittent problems like this are a bear to trace down but a good tech can usually find it by pressing and tapping around on the PC boards and components until he finds the sensitive spot. Sometimes it is even a matter of temperature.
I think it's time for a trip to the shop for your amp. Likely the fix will be simply resoldering a solder joint and there won't be any parts at all involved. The bugger here is going to be the time involved in finding the bad spot.