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Removing the Vypyr VIP DSP board

Peavey Vypyr VIP DSP Repair Notes

20160314_175350Occasionally, I will have someone remove their DSP board to send to me for reflashing. I’ve noticed that there seems to be an issue with disassembling the VIP board that was not an issue with the Series 1 Vypyr boards. It seems that Peavey is using a different part for the ribbon connector headers than they used to. While there isn’t anything wrong with these headers, they do have a tendency to pull off of the board when the ribbon cable is removed.

If you will look at the picture to the left, you should notice that there are two plastic parts to the ribbon connector.  One of these is intended to be a part of the circuit board.  It helps to properly align the ribbon cable and make getting all of the pins into the right holes easier.  The other part is crimped to the ribbon cable with small blades making the electrical connection.  This part then plugs into the portion attached to the circuit card.

Wisely, Peavey uses an adhesive to glue these two parts together.  The adhesive serves to

exposed pins

Improperly disassembled cable connector

prevent the cable from being unplugged or vibrating loose while transporting (or even while playing) the amplifier.  They are using a better adhesive now than they

 

used to.  The result is that if time isn’t taken to separate the glue from the assembly when removing the cable that both parts of the connector come off of the card.  This results in the card having exposed pins as is shown in the picture to the right.  Be very careful when removing the ribbon cable to only pull on the plastic connector.  DO NOT PULL ON THE CABLE!

There are a few issues that arise when the entire connector assembly is pulled off of the circuit board.  First, without the guide portion of the connector in place it is very easy to bend and twist the pins on the circuit board.  Bent pins are not a good thing.  They make it very difficult to reconnect the cable (especially if an attempt is made to plug the entire assembly into the pins.

The second issue is that having the guide on the circuit board provides some protection to the pins.  This is particularly important if the card is being removed from the amplifier and shipped.  If the shipping package receives some crush damage, the guides will provide protection that should prevent the pins from completely breaking off.

The third reason for wanting these in place is that they make it easier to remove the cables.

So be careful when removing the ribbon cables from the VIP DSP card to separate the guide portion if the connector from the cable portion.

A couple of other DSP card notes:

Don’t over-tighten the screws when putting the DSP board back into the chassis.  That can crack the DSP board, rendering it irreparable.
When sliding the amp assembly back into the carcass (the wooden chassis), slide the speaker wires into the carcass before trying to slide the amp back in.  Otherwise you will have to take the amp back out to get to the speaker wires.
Don’t forget to reconnect the speaker when you get the amp back in the chassis.  You may want to do this before you put the back on the amp.
Glen

5 comments

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  1. dasquarter

    I have a dead VIP2 and would love to have it revived. Do you still work with these chips? Any information would be appreciated.
    Thank you,
    JM

    1. admin

      I do help folks out occasionally with flashing Vypyr ROMS.
      Where are you located, and how sure are you that your problem is the ROM?

      Glen

  2. Vladislav

    Hello, Glen! I need your help, could you write me on my email?
    Thank you.

  3. Stuart Morgan

    Is it possible to send my VIP 1 board to you for a repair please, if you could let me know what the cost might be, I had a bad flash on my vip 1 and its left it dead.

    many thanks

    Stuart

    1. Glen

      Email sent to your gmail account.

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