Further Projector maintenance - fMRI projector changed

Dear users, Following failure ("stuck" pixels) on one of the LCD chips of the projector in MRI, the projector has been replaced today at midday. Recently, blue dots began appearing on 'dark' parts of the screen suggesting this sort of failure, and following investigation this has proven to be the case. In order to have as little impact as possible on current settings and acquisition protocols, users should note that we have done the following: 1) replaced the previous projector with an exact duplicate from stock (same make and model) 2) migrated the lamp into the replacement projector 3) ensured that the hardware settings ('brightness', 'contrast' and 'zoom' on the projector are exactly as previous) 4) migrated the optical long-throw lens from the old to replacement projector. Reiterating the messages sent before (below), users are encouraged to recalibrate and/or model for the change in future analyses if they feel this is appropriate. Thanks to those who brought the issue to our attention. Andre' On 15/05/12 15:15, Andre Gouws wrote: -- Andre' ************************************************************************ Andre Gouws York Neuroimaging Centre The Biocentre York Science Park Heslington YO10 5DG Tel: +44 (0) 1904 435328 Fax: +44 (0) 1904 435356