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Popping Sound on Carvin BX500

grass132456

grass132456

Sep 12, 2011
179
0
#1
Hey guys, I just have a slight concern with my Carvin BX500. Or atleast I'm assuming it is the amp because every time I turn the amp off, instead of the usual soft (almost) noiseless shutoff, I get a pop. It's not loud enough so that the speakers sound like it will blow or anything but there is still a decently audible pop. Any idea what is wrong?
 
#5
So here are the guts of the Carvin bx500. Which ribbon cord should I clean and how do I pull them out because I tried to but it seems like it is stuck and I don't want to use too much force or else i may break the ends or something.
 

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#6
There are little tabs on both sides of the plastic connectors that hold them in place. Use something like a tiny screwdriver to push the tabs out of the way while you pull the ribbon out.

EDIT: I don't own a BX500, but this is how all ribbon connectors on my amps and PA heads work.
 
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#7
jumblemind said:
There are little tabs on both sides of the plastic connectors that hold them in place. Use something like a tiny screwdriver to push the tabs out of the way while you pull the ribbon out.

EDIT: I don't own a BX500, but this is how all ribbon connectors on my amps and PA heads work.
Click to expand...

Hmmm still a bit confused on what little tabs you mean. Shall I take more detailed pictures?
 
#16
NYCbassist said:
No tabs. No screw driver needed. Just pull the cable while gently wiggling it.
Click to expand...

Tried wiggling it with more than gentle force, but no avail :crying: I should just call Carvin shouldn't I? I just have a church event tomorrow that I am slightly worried about, but hopefully it won't make popping sounds in the middle of a song (it has done that too, if I didn't mention before).
 
#17
grass132456 said:
Tried wiggling it with more than gentle force, but no avail :crying: I should just call Carvin shouldn't I? I just have a church event tomorrow that I am slightly worried about, but hopefully it won't make popping sounds in the middle of a song (it has done that too, if I didn't mention before).
Click to expand...
Trust me the cables all come out with no tabs to contend with. I wish I was there to help man. Don't be afraid to pull a bit on the cable and wiggle from the long edges.
As others have stated above, There may be other resistor related problems etc. I can see the words REV. G on the board in your pictures. I believe the Rev. G is the most recent release of PC boards. It may or may not have the upgraded Resistors on it mentioned in above posts. A call to Carvin wouldn't hurt just to clear up some issues.
 
#18
I had a similar problem with my BX500. This, and it would not always turn on without some coaxing (tapping on the chassis). I pulled the ribbon cables and cleaned them with Deoxit - same problem. I was not playing at the time, and became involved in other things, and let my warranty expire (entirely my fault). A word of advice - look at their web site and get informed on their service policy They charge a minimum service fee, which for the BX500 is $225 ! But, they also offer a trade-in or trade-up allowance. I paid the difference and got a BX1500. Now I have a amp that works perfectly, and will cover any of my future needs. I did love my BX500 - when it worked ! So far, so good on the BX1500 !
 

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