Power Amp Repair
Jamie wrote:
Haaky wrote:
Eeyore wrote:
Haaky wrote:
I'm wondering if it's something in the power supply?
Pretty unlikely.
It's seems like it's getting a surge of power when i turn it on. Not all the
time just on occasion.
You mean it sometimes goes HUMMmmmmm...... at switch one ?
That's quite normal especially with toroidal transformers.
So far it's done it twice since i got it back. As soon as i hit the
power switch the fuse in the back popped. When i replaced the fuse and
switched it back on
it worked fine. Seems to be an intermitten thing, i hope. I don't mind
that so much if it only happens on occassion, i'm just affraid that
eventually something else will go wrong with it. And i know it will
happen when the warrenty they gave runs out.
sounds like a bad bridge or caps.
No it sounds like magnetising current actually. Toroids are notorious for it
because of the low reluctance of the magnetic circuit.
Graham
|