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ADA Preamps => Original MP-1 => Topic started by: Zsoli on November 28, 2014, 01:05:35 PM

Title: Beep sound :( :)
Post by: Zsoli on November 28, 2014, 01:05:35 PM
Dist channel:

1.) Guitar > Mp-1 A out >  = beep sound :(

2.) Guitar > Mp-1 B out >  = beep sound :(

3.) Guitar > Mp-1 send out >  = good sound  (no beep sound)


??????

What is wrong?
Title: Re: Beep sound :(
Post by: MarshallJMP on November 28, 2014, 01:27:55 PM
Do you also have a "beep" sound if you plug in a headphone on the back? (headphone out).
Title: Re: Beep sound :(
Post by: Zsoli on November 28, 2014, 02:07:37 PM
1.)  OUTPUT LEVEL min o’clock position !
Guitar > Mp-1 Headphone out >  = good sound

2.) OUTPUT LEVEL 12 o’clock position !
Guitar > Mp-1 Headphone out >  =  beep sound :(

3.) OUTPUT LEVEL min o’clock position !
Guitar > Mp-1 send out >  = good sound  (no beep sound)

4.) OUTPUT LEVEL 12 o’clock position !
Guitar > Mp-1 send out >  =  beep sound :(



Title: Re: Beep sound :(
Post by: MarshallJMP on November 28, 2014, 02:15:22 PM
Is this on all the 3 voicings or just the tube voicings?
Title: Re: Beep sound :(
Post by: Zsoli on November 28, 2014, 02:39:14 PM
All the 3 voicings.
Title: Re: Beep sound :(
Post by: MarshallJMP on November 29, 2014, 09:06:20 AM
Can you mail me an mp-3 recording of that beep sound?
Title: Re: Beep sound :(
Post by: Zsoli on December 02, 2014, 04:33:31 AM
Did you get my mail?
Title: Re: Beep sound :(
Post by: MarshallJMP on December 02, 2014, 12:01:30 PM
yep ,did a reply.
Title: Re: Beep sound :(
Post by: Zsoli on January 12, 2015, 12:31:42 PM
I found the origin of the beep sound.   :banana-dance:

As you see on the pic, accidentally wires were soldered.

I exchanged this wire to a CD cable, so the beep sound breaks off.
Title: Re: Beep sound :( :)
Post by: rnolan on January 13, 2015, 03:06:55 AM
Cool, glad to hear you solved it  :thumb-up:
Title: Re: Beep sound :( :)
Post by: MarshallJMP on January 13, 2015, 02:53:40 PM
Great!!!