Help! I bought the amp I've wanted my forever through fb marketplace. It is a used 2014 Mark V 90W Combo. I love this amp. I've owned it only three weeks. I used it for one gig, practice at home, two rehearsals, and last night at a gig it crapped out on me.
It happened at the end of the first set in Channel 3, solo. I had just finished a screaming solo in the high register. I began do do some picking during the breakdown and a terrible hummmm began. Sounds like when a guitar cable is unplugged.
Listen while I try to trouble shoot on stage during the set break: https://youtu.be/V2_dcuM8Nr4
I was using a strat. In the above video, I have already switched to my tele. I'm switching on and off the mute on the foot switch. I get it on all three channels. Then, we turned off the foot switch, channel one works fine. I could switch to channel two and three with the knob on the back.
Here is when I thought I fixed it: https://youtu.be/Z0C_pFcmRtQ You'll hear the ground humm in the beginning, then the fix a t 1:40
I thought it was a bad foot switch cable, so I resolved to switch manually for the rest of the show. WRONG!
I found that when I got the amp singing, really driving the tubes, the loud, awful HuMMM came back. I turned the amp off, missed some of a song, then turned it back on before the next song. Worked again. I switched the amp off in between songs for the rest of the night. I did not get a chance to hook up thee foot switch again.
I'm praying someone here will know what is worn with this! Please help! I paid $2300 for what I thought was the amp of a lifetime. There is only one amp tech in my area- Harrisburg PA. I hear there is a long wait at the shop, although they have a good reputation, and we are a gigging band.
It happened at the end of the first set in Channel 3, solo. I had just finished a screaming solo in the high register. I began do do some picking during the breakdown and a terrible hummmm began. Sounds like when a guitar cable is unplugged.
Listen while I try to trouble shoot on stage during the set break: https://youtu.be/V2_dcuM8Nr4
I was using a strat. In the above video, I have already switched to my tele. I'm switching on and off the mute on the foot switch. I get it on all three channels. Then, we turned off the foot switch, channel one works fine. I could switch to channel two and three with the knob on the back.
Here is when I thought I fixed it: https://youtu.be/Z0C_pFcmRtQ You'll hear the ground humm in the beginning, then the fix a t 1:40
I thought it was a bad foot switch cable, so I resolved to switch manually for the rest of the show. WRONG!
I found that when I got the amp singing, really driving the tubes, the loud, awful HuMMM came back. I turned the amp off, missed some of a song, then turned it back on before the next song. Worked again. I switched the amp off in between songs for the rest of the night. I did not get a chance to hook up thee foot switch again.
I'm praying someone here will know what is worn with this! Please help! I paid $2300 for what I thought was the amp of a lifetime. There is only one amp tech in my area- Harrisburg PA. I hear there is a long wait at the shop, although they have a good reputation, and we are a gigging band.
