in case you haven't seen the post on the SD support forum yet -
http://www.sounddevicessupport.com/viewtopic.php?t=344
Steve
mind helping the ones who are not regg'd on there and paste what they are saying?
Sound Devices has determined that the analog-to-digital converter circuit board in 722 an 744T units identified below has the potential to intermittently fail. The failure condition manifests as "popping" noise or digital hash when using analog inputs. This is not a problem which gets worse over time, and it happens rather infrequently and does not happen on all units. Typically, a power cycle will clear the condition. The converters are most prone to the failure at 96 kHz sampling rates. The problem can occur at other sampling rates with less frequency. Sound Devices has seen only a handful of failures, but we will exchange ALL suspect A/D boards as a preventative measure.
Affected Units:
722: Serial numbers 470499999999 and lower which do NOT have a "v14", "v15", or "v16" sticker directly below the serial number sticker on the back panel. The "v14", etc. stickers indicate the sub-revision of the unit.
744T: Serial numbers 460499999999 and lower which do NOT have a "v14", "v15", or "v16" sticker directly below the serial number sticker on the back panel.
There are two options to resolve this issue:
1. We can send you a new A/D board and replacement instructions if you are comfortable replacing it. It involves removing the top and bottom cover, snapping the new board on, then replacing the covers.
2. You can send us your unit and we will do the board replacement here at the factory.
Please contact Sound Devices via phone or enter a case directly on our web site at
www.sounddevices.com/contact_support.htm . Select "A/D Board Exchange" as the type. Sound Devices will contact you and send a replacement A/D board in the mail at no charge.
The new boards have identical frequency response, gain, etc. as the old ones. The only change is more robust digital communication from the A/D board to the DSP. The new, replacement boards are identical to what is being shipped in brand new units.
Thank you for purchasing Sound Devices products, and for your cooperation with this