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#615375 - 01/13/18 12:44 AM MBX MUSIC ON HOLD  
Joined: May 2011
Posts: 16
Cactus Communications Offline
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Cactus Communications  Offline
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Joined: May 2011
Posts: 16
San Dimas
I have an MBX system in use with existing External MOH source problem is the source via RCA cable has alot of static even though it is an actual message on hold device, is there a way to utilize the USB ports on the Main MBX 100 board or even the VMIB to have a clean source for on hold callers ?? Your help is greatly appreciated.


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#615381 - 01/13/18 06:57 AM Re: MBX MUSIC ON HOLD [Re: Cactus Communications]  
Joined: Jan 2018
Posts: 220
rotarydialtommy Offline
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rotarydialtommy  Offline
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Posts: 220
rocklin ca
Try putting a high z to low z matching transformer between the rca cable and the MBX . It should help the sound quality .Let us know.
.


Ground is Ground the world around !
#615382 - 01/13/18 07:18 AM Re: MBX MUSIC ON HOLD [Re: Cactus Communications]  
Joined: Jan 2018
Posts: 220
rotarydialtommy Offline
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rotarydialtommy  Offline
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Joined: Jan 2018
Posts: 220
rocklin ca
The MBX moh input is being over driven if the transformer does not work try putting a resistor in series with the hot lead of the rca plug . Start with 1000 ohms first and work your way up .

Last edited by rotarydialtommy; 01/13/18 07:20 AM.

Ground is Ground the world around !
#615383 - 01/13/18 04:26 PM Re: MBX MUSIC ON HOLD [Re: Cactus Communications]  
Joined: Feb 2005
Posts: 11,769
hbiss Offline
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hbiss  Offline

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Joined: Feb 2005
Posts: 11,769
New York
Quote
... has a lot of static


I just love questions like this. What do you consider "static"? Do you know the difference between static and distortion? The reason for asking is that if it is indeed static it would indicate a problem with the player or the input on the system. If it is distortion it could be, as RDTommy points out, that the level from the player is too high, though I question that as players are designed to work with MOH inputs. Most players have a level control. Have you tried turning that down? There may also be a 8 ohm/600 ohm switch on the player. Have you tried moving that to the other position?

I don't agree with what RDTommy advises about a 1k resistor. Probably won't do much if anything. If you want to try it, try a 10k with and another 10k to ground at the system side.

-Hal


CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
#615385 - 01/13/18 06:21 PM Re: MBX MUSIC ON HOLD [Re: Cactus Communications]  
Joined: Jan 2018
Posts: 220
rotarydialtommy Offline
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rotarydialtommy  Offline
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Joined: Jan 2018
Posts: 220
rocklin ca
Hal I know you are right I just used 1000 ohm as a starting point . The final solution will most likely be as you posted .


Ground is Ground the world around !
#615386 - 01/13/18 06:23 PM Re: MBX MUSIC ON HOLD [Re: Cactus Communications]  
Joined: Jan 2018
Posts: 220
rotarydialtommy Offline
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rotarydialtommy  Offline
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Joined: Jan 2018
Posts: 220
rocklin ca
Hal I know you are right I just used 1000 ohm as a starting point . The final solution will most likely be as you posted .


Ground is Ground the world around !
#615390 - 01/13/18 07:04 PM Re: MBX MUSIC ON HOLD [Re: Cactus Communications]  
Joined: Feb 2005
Posts: 11,769
hbiss Offline
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hbiss  Offline

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Joined: Feb 2005
Posts: 11,769
New York
If it's distortion.

-Hal


CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.

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