Infernal_Death
Well-known member
Hi all
Last week the bass player of my band came to me and we worked on a new song in my little studio. We always play a riff and then work on the drum parts for this riff just to give our drummer a guide line. This means we track guitars and then doing drum programming and then tracking guitars and so on. As i used the G9 as the mic preamp for guitar tracking the unit was on several hours (my guess is 3-4 hours).
After doing some drum tracks we wanted to continue tracking guitars as i noticed that there was no signal in cubase. Looking in the rack i noticed that the LED of the G9 was out. So i checked the power cable but it was correctly plugged in.
I unmounted the G9 and opened it up. First thing i noticed that the fuse was destroyed. The glass body of the fuse was completely black from the inside, not just the small wire inside broken.
I investigated further and then noticed that there was a big heat around the transformers. So big that the foil around one of the torodial transformers was already melted on some places. Looking and touching around i found out that it only was one transformer, the one that transforms the incoming 230V to 12V.
Testing the unit with a new fuse revealed that the transformers seems to be fried. The new fuse blew immediately. At one place of the transformer it seems that the wires broke (could this be happening because of heat/too much power drain ?)
So now i am sitting here wondering what went wrong. I haven't found any other areas where a fault could have been happened. For me it really seems that the power transformer simply overheated over the time and was destroyed. Granted i never left the G9 on for such a long time, normally only around half an hour.
As suggested i used 2x 30VA transformers. Now as i need a new one i am wondering if i should by a 50VA transformer for the 230V-12V transformation.
Anybody had similar experience ? Anybody left the G9 on for several hours without problems ?
I just want to be sure what the problem is and not wanting the new transformer to get fried again.
As always thanks
Flo
Last week the bass player of my band came to me and we worked on a new song in my little studio. We always play a riff and then work on the drum parts for this riff just to give our drummer a guide line. This means we track guitars and then doing drum programming and then tracking guitars and so on. As i used the G9 as the mic preamp for guitar tracking the unit was on several hours (my guess is 3-4 hours).
After doing some drum tracks we wanted to continue tracking guitars as i noticed that there was no signal in cubase. Looking in the rack i noticed that the LED of the G9 was out. So i checked the power cable but it was correctly plugged in.
I unmounted the G9 and opened it up. First thing i noticed that the fuse was destroyed. The glass body of the fuse was completely black from the inside, not just the small wire inside broken.
I investigated further and then noticed that there was a big heat around the transformers. So big that the foil around one of the torodial transformers was already melted on some places. Looking and touching around i found out that it only was one transformer, the one that transforms the incoming 230V to 12V.
Testing the unit with a new fuse revealed that the transformers seems to be fried. The new fuse blew immediately. At one place of the transformer it seems that the wires broke (could this be happening because of heat/too much power drain ?)
So now i am sitting here wondering what went wrong. I haven't found any other areas where a fault could have been happened. For me it really seems that the power transformer simply overheated over the time and was destroyed. Granted i never left the G9 on for such a long time, normally only around half an hour.
As suggested i used 2x 30VA transformers. Now as i need a new one i am wondering if i should by a 50VA transformer for the 230V-12V transformation.
Anybody had similar experience ? Anybody left the G9 on for several hours without problems ?
I just want to be sure what the problem is and not wanting the new transformer to get fried again.
As always thanks
Flo