amp I bought 3 days ago not powering on - electrical engineer advice wanted

I bought a used Musical Fidelity A380 in good condition. Played it every day, worked fine.

Today it did not turn on. There were no sign of failure yesterday. Could it be a fuse or power supply?

parkergetdean01-29-2026 12:34am

parkergetdean OP Details Discussions Posts This discussion Message User 1,047 posts 03-09-2026 at 10:38pm Copy Comment URL Report Comment Edit Delete yes @devinplombier once it's on, it stays on. I found a good shop in Murietta. I will go there on Saturday hopefully.
devinplombier Details Discussions Posts This discussion Message User 1,666 posts 03-09-2026 at 10:57pm Copy Comment URL Report Comment Edit Delete @parkergetdean Great! Hope this is the one. Keep us posted!
thecarpathian Details Discussions Posts This discussion Message User 6,140 posts 03-09-2026 at 11:31pm Copy Comment URL Report Comment Edit Delete @parkergetdean , If they're soldered to that tiny board and we're working with no soldering experience, yeah maybe leave it to the pros. I'm guessing that tiny board is the soft start.
parkergetdean OP Details Discussions Posts This discussion Message User 1,047 posts 03-09-2026 at 11:39pm Copy Comment URL Report Comment Edit Delete @thecarpathian I think devinplomber's analysis confirmed that it's not that board. The instructions travel downstream that the power is and then it is rejected by another component. two scenarios: 1) turns on, led on volume dial turns red in 8 seconds 2) does not turn on, led on volume dial turns red in 8 seconds
thecarpathian Details Discussions Posts This discussion Message User 6,140 posts 03-09-2026 at 11:44pm Copy Comment URL Report Comment Edit Delete Ah! I missed all that. Well don't listen to my nonsense, call a tech!