By elmacaco
Tue Apr 22, 2003 4:54 am
I heard that the whine coming from My MPC is from the inverter from the website http://www.backlights.co.uk
I got the new inverter today, I opened her up and replaced it, cutting wires
and shit, then I switch on the MPC....
No Backlight! Shit! I double check my work, it's good.
I check out the original inverter, it has some kind of metal housing I shake
it and I hear something rattling inside, I desolder the metal case and take
it off, there is a small transformer (like a bobbin with copper wire wrapped
on it) with a coil of flat metal in a ring around it (think a piece of tape
or ribbon in a roll). This is probably to shield it from high frequency
interferenance. This had a piece of old tape on it to stabilize it to the
transformerthat had dried up and it was loose and rattling. I took a piece
of electrical tape and fastened it to the transformer again. I resoldered
the original one in and the whine was cut down a good amount, but not
perfect.. I really have to put my ear near it and have all be quiet to hear
it.
I'm waiting to hear back from the guy at the websote where I got the inverter. He's a great guy, and I bet it just got damaged in transit or something.
just thought that might help the technically inclined on the forum.
I got the new inverter today, I opened her up and replaced it, cutting wires
and shit, then I switch on the MPC....
No Backlight! Shit! I double check my work, it's good.
I check out the original inverter, it has some kind of metal housing I shake
it and I hear something rattling inside, I desolder the metal case and take
it off, there is a small transformer (like a bobbin with copper wire wrapped
on it) with a coil of flat metal in a ring around it (think a piece of tape
or ribbon in a roll). This is probably to shield it from high frequency
interferenance. This had a piece of old tape on it to stabilize it to the
transformerthat had dried up and it was loose and rattling. I took a piece
of electrical tape and fastened it to the transformer again. I resoldered
the original one in and the whine was cut down a good amount, but not
perfect.. I really have to put my ear near it and have all be quiet to hear
it.
I'm waiting to hear back from the guy at the websote where I got the inverter. He's a great guy, and I bet it just got damaged in transit or something.
just thought that might help the technically inclined on the forum.
