Main > Monitor/Video Forum
SHARP XM-1801 issues
Ken Layton:
Could be bad solder on the neckboard.
clanggedin:
I powered up the other monitor I had today that I repair the flyback on and it makes the same sound. I wonder if all SHARP monitors make this sound and I'll just have to live with it.
I'll keep plugging away at figuring this one out. All I can think of is there was one cap that looked like it was touching another cap or resistor before I replaced and and when I replaced the cap I made sure the solder didn't touch the other resistor or cap. It was like C420.
Could that be causing the buzzing sound??
Ken Layton:
I don't recall the two I fixed making any noise, but I remember leaving the clear plastic in it that was attached to the flyback cage. The cage was removed completely, but I made sure all wiring was layed out exactly as it originally was.
clanggedin:
I'll put the clear plastic back on one of the montiors and see if that helps. I will also reflow the solder so the points are touching on one of them and see if that makes any difference.
clanggedin:
I have finally pin-pointed (for sure) where the sound is coming from. It is coming from the Isolation Transformer. I moved over to one of the air vents on the bottom of the cab and sure enough the sound is coming from that.
I went to Bob Roberts site and read how to fix the "Alarm Clock" buzz, but the transformer in this cocktail is a metal box and not the block like others I have seen. I'm going to take the cover off of it tonight to see if I can see what is making the noise.