Hi all
I have a mid 90's Fender PC that, besides its nice cleans and warm chorus tones, also has a not so nice buzz and hiss. Oh yes, both.
With nothing plugged in, turning on the amp you can hear a faint buzzing sound. It's not very loud but it's there and clearly audible. Kinda like interference. It needs to be pretty quiet around to hear it so it's really not rattling the windows.
Turning the dials doesn't affect this.
Playing a guitar through it makes it inaudible.
Plugging in a guitar, any guitar with any cable, adds hiss, like white noise.
Turning the dials does affect this. It drowns in the music when you play unless you play at low volumes, like bedroom practice where it is very noticable with slow pieces or between songs. Or of course when you crank the amp in which case the noise is very present when not attacking the strings.
Altough it has a seperate overdrive channel, this is virtual as the amp really is a single channel amp.
Turning the gain past 5 with the volume at 2 creates way too much hiss. Gain closer to 10 is a joke. This is all with low volume, on high volume it's insane.
This is the amp manual if someone cares to take a look.
http://www.fender.com/support/manual...ton_Chorus.pdf
The amp does work. The cleans, the chorus, the reverb heck even the overdrive.
It all sounds great if it wasn't for all this extra noise.
I've tried the amp in many different outlets in the house with no change and I've used a small outlet testers with 3 lights on the back to try various outlets.
All seems normal except that the tester packaging says it can't detect faulty ground...so how do I detect this?
Someone told me that it might be the filter caps?
I do suspect it might be the house wiring since I have a small 15w ultracoustic Behringer amp and, albeit to lesser extent, it has the same hiss. It also has the same buzz with nothing plugged in but because of its size or lack thereof you need to put your ear close to hear it.
The Fender has been sitting in a room for many years and I've just recently aquired it. It's 13 years old and my guess is that it wasn't powered up for half that time at least. It still looks brand new. As does the 2 button footswitch.
Oh yesterday I took the amp apart and cleaned the top of the circuit board with contact spray.
I also did all the pots annd input jacks but it didn't change a thing.
I don't know how to troubleshoot this baby and there's no techs in my neighborhood so any advice you can give me is welcome and very appreceated.
I have a mid 90's Fender PC that, besides its nice cleans and warm chorus tones, also has a not so nice buzz and hiss. Oh yes, both.
With nothing plugged in, turning on the amp you can hear a faint buzzing sound. It's not very loud but it's there and clearly audible. Kinda like interference. It needs to be pretty quiet around to hear it so it's really not rattling the windows.
Turning the dials doesn't affect this.
Playing a guitar through it makes it inaudible.
Plugging in a guitar, any guitar with any cable, adds hiss, like white noise.
Turning the dials does affect this. It drowns in the music when you play unless you play at low volumes, like bedroom practice where it is very noticable with slow pieces or between songs. Or of course when you crank the amp in which case the noise is very present when not attacking the strings.
Altough it has a seperate overdrive channel, this is virtual as the amp really is a single channel amp.
Turning the gain past 5 with the volume at 2 creates way too much hiss. Gain closer to 10 is a joke. This is all with low volume, on high volume it's insane.
This is the amp manual if someone cares to take a look.
http://www.fender.com/support/manual...ton_Chorus.pdf
The amp does work. The cleans, the chorus, the reverb heck even the overdrive.
It all sounds great if it wasn't for all this extra noise.
I've tried the amp in many different outlets in the house with no change and I've used a small outlet testers with 3 lights on the back to try various outlets.
All seems normal except that the tester packaging says it can't detect faulty ground...so how do I detect this?
Someone told me that it might be the filter caps?
I do suspect it might be the house wiring since I have a small 15w ultracoustic Behringer amp and, albeit to lesser extent, it has the same hiss. It also has the same buzz with nothing plugged in but because of its size or lack thereof you need to put your ear close to hear it.
The Fender has been sitting in a room for many years and I've just recently aquired it. It's 13 years old and my guess is that it wasn't powered up for half that time at least. It still looks brand new. As does the 2 button footswitch.
Oh yesterday I took the amp apart and cleaned the top of the circuit board with contact spray.
I also did all the pots annd input jacks but it didn't change a thing.
I don't know how to troubleshoot this baby and there's no techs in my neighborhood so any advice you can give me is welcome and very appreceated.
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