Hello!
It turns out my Mark 5 25 head has no working front panel. All tubes are OK, power transformer is OK, fuse is OK, but there is no pilot light on and there is no sound. It is basically dead. Power tubes are being fed since they glow and get very hot, preamp tubes are not that hot but they are being heated. Also, the internal fan is not turning on.
Do you have any hint on what could be going on?
It turns out my Mark 5 25 head has no working front panel. All tubes are OK, power transformer is OK, fuse is OK, but there is no pilot light on and there is no sound. It is basically dead. Power tubes are being fed since they glow and get very hot, preamp tubes are not that hot but they are being heated. Also, the internal fan is not turning on.
Do you have any hint on what could be going on?