Orange AD200 - Can hear the hum but no power
Posted: Sun Aug 25, 2019 10:55 pm
I was playing a gig on the weekend and when I was setting my amp up I switched it on but no light came on. At first I thought it was the power cable so I swapped that out with another but still, no light.
So the sound guy and I decided to run it to a different power point but still nothing. In the end I switched the power point off and on again and then suddenly I had a working amp. It didn't miss a trick for the rest of the show.
Anyway... I was a bit suss about it so I plugged it in again the next morning. Nothing. I try different points in the house and different cables... nothing.
When I switch the power on I can hear the slight hum of the transformers getting power but no light comes on and, from what I can see, no tubes glow. It just seems dead.
I checked the mains fuse and the HT1/HT2 fuse and they look fine. I even swapped the mains fuse out with a new one. Still nothing.
So it is going into the shop next weekend but in the meantime I thought I'd see if anybody had experienced something like this before. I am dreading to think it is the PT that has died. It was recently serviced and re-tubed and worked fine the last 3 weeks. When I went to plug in at rehearsal the week before I thought I felt the IEC connector move more than it should but when I opened the amp up everything seemed fine (possibly something has broken there that I didn't notice...).
Anyway, I'm at a bit of a loss.
So the sound guy and I decided to run it to a different power point but still nothing. In the end I switched the power point off and on again and then suddenly I had a working amp. It didn't miss a trick for the rest of the show.
Anyway... I was a bit suss about it so I plugged it in again the next morning. Nothing. I try different points in the house and different cables... nothing.
When I switch the power on I can hear the slight hum of the transformers getting power but no light comes on and, from what I can see, no tubes glow. It just seems dead.
I checked the mains fuse and the HT1/HT2 fuse and they look fine. I even swapped the mains fuse out with a new one. Still nothing.
So it is going into the shop next weekend but in the meantime I thought I'd see if anybody had experienced something like this before. I am dreading to think it is the PT that has died. It was recently serviced and re-tubed and worked fine the last 3 weeks. When I went to plug in at rehearsal the week before I thought I felt the IEC connector move more than it should but when I opened the amp up everything seemed fine (possibly something has broken there that I didn't notice...).
Anyway, I'm at a bit of a loss.
)