Faders 9-16 locking down

[John Taylor]

Hi all,
My D8B has faders 9-16 sticking at inf until I force them up to full. This seems to release them until I either try to move them with the mouse on the GUI or change the bank select. Doing this locks them down unusually fast to inf again. There also seems to be heat coming from them when left locked down for a while. Any ideas guys?

John

[Dreamsequence]

John:

Check my thread from a few weeks back re: fader problems identical to this. The often cited correction is to reseat the ribbon connector to the fader PCB, although that did not work in my case. The only fix was to replace the affected fader PCB; I was fortunate to find a source of refurbished boards. From what I can tell, there is a latching IC that does not release the fader motors at infinity. The heat you are describing is likely from the +5vdc regulator on the board, which does not have a heatsink (but seems it could benefit from one).

Check eBay for boards; Mackenziejoyous has refurbs available. I had to replace (2), because both calibrated low (comparator circuit fault), and one had the same lock-up problem that you describe.

Pat

[John Taylor]

Hi Pat
Thanks for the reply. Its definitely the fader PCB as I swapped it round with 1-8. I'll see if I can find a replacement.
Is there anyway to repair the boards?

John

[Dreamsequence]

Contact Mackenziejoyous. He has a talented tech available.

[anyhorizon]

There's a thread in here that describes the replacement of ICs on the fader board that solved a similar problem. I thought it was added to the database but I can't find it in there. Do a bit of poking around and I'm sure you'll find it.

Peter