Splawn Quick Rod - No sound from preamp and footswitch not lighting up

[Nitrobattery]

I was hoping some of you have run into this problem before and may have an answer. I have a 2009 Splawn Quick Rod and I fired it up today to do a session and the lights were on but nobody was home. I get signal if I plug into the effects loop return, but the preamp isn't working and the footswitch isn't lighting up either (removing the footswitch cable doesn't remedy the problem). I went down the line and swapped out the preamp tubes but that didn't help. I was curious if any of you techs have run into this before and could offer some insight. I'm fairly handy with a soldering iron so if it's a part/repair that I could do myself that would be awesome. Thanks!

 

[harddriver]

Could be a switching relay gone bad.

 

[311boogieman]

I was hoping some of you have run into this problem before and may have an answer. I have a 2009 Splawn Quick Rod and I fired it up today to do a session and the lights were on but nobody was home. I get signal if I plug into the effects loop return, but the preamp isn't working and the footswitch isn't lighting up either (removing the footswitch cable doesn't remedy the problem). I went down the line and swapped out the preamp tubes but that didn't help. I was curious if any of you techs have run into this before and could offer some insight. I'm fairly handy with a soldering iron so if it's a part/repair that I could do myself that would be awesome. Thanks!

Seems like a tough one. Assuming you swapped V4 too? You know it is safe to pull a preamp tube while live? Though I wouldn't always recommend that you could turn it off, take out V1, turn it on, play, turn it off, V1 back in, take V2 out, repeat. Right @harddriver?

Are you sure you are not stuck on the clean channel? What happens if you patch the loop?

 

[reignman454]

I was hoping some of you have run into this problem before and may have an answer. I have a 2009 Splawn Quick Rod and I fired it up today to do a session and the lights were on but nobody was home. I get signal if I plug into the effects loop return, but the preamp isn't working and the footswitch isn't lighting up either (removing the footswitch cable doesn't remedy the problem). I went down the line and swapped out the preamp tubes but that didn't help. I was curious if any of you techs have run into this before and could offer some insight. I'm fairly handy with a soldering iron so if it's a part/repair that I could do myself that would be awesome. Thanks!

Footswitch plugged in? Remove it and try if so. As 311 mentioned, tube could be an issue. Did the 09 have the manual selector for gears or channels? Change ONE thing and try it IE:

Unplug footswitch, flip switches, no fix? move on.
Swap V1, flip switches etc, no fix? Move on.


I have 5-6 splawns including quickrods, haven't had this issue.


P.S.,

Gigged hard? Studio queen? How recent are the tubes?

 

[Toneboner]

What happens if you patch the loop?

Id patch the loop. Pretty sure '09 has the push button loop bypass switches. Perhaps the button is toast but stuck "on" so you'll not get signal without a patch or other device providing continuity.