carolmaille
Member
Hello again. I have recently collected some machines from a terrace shed. They are analogue audio. One is an oscilloscope. All seem to have lights on to begin with, but I just put them on for a few seconds. The Revox PR99 1/4" tape machine was once a good machine I bought it from a redundant plant:
On the back next to the socket I lowered the power to 140V from 220 and switched it on; the LED display came on the Record light came on - then it all went off: The fuse on the machine seems to have blown
So - would this be because something went short circuit after switching it on for so long ? Would it be a capacitor but that would go open circuit ? So do you have any ideas of why this happens or/and of how to proceed please ?
With the oscilloscope I read to switch it on progressively for longer times while leaving it for 30 min in between ? Many thanks for suggestions, Have a good day Carol
On the back next to the socket I lowered the power to 140V from 220 and switched it on; the LED display came on the Record light came on - then it all went off: The fuse on the machine seems to have blown
So - would this be because something went short circuit after switching it on for so long ? Would it be a capacitor but that would go open circuit ? So do you have any ideas of why this happens or/and of how to proceed please ?
With the oscilloscope I read to switch it on progressively for longer times while leaving it for 30 min in between ? Many thanks for suggestions, Have a good day Carol