Troubleshooting

The Following Procedures Should Be Followed:

1. Head Localization Failure: a. Check Collection Parameters. b. Check head movement. c. Check head coil placement. d. Repeat head localization.

2. Acq Aborts (crashes): a. Check front panel for electronics failure. Record codes. b. If no electronics failure then re-launch Acq. c. Check collection parameters. d. Re-enter Acq information. e. Fill out a Variance Report.

     3.	Boot Electronics Failure:

a. No LED’s – no power. If there is no fan noise or clicking of relays then it is likely that there is a problem with the power. Contact MEG Core staff for assistance.

b. No LED’s – no 12 kHz Sync signal is being received by the card. Exit Acq then turn the power off and on and try again. Without the 12 kHz sync pulse all the cards in the sub-banks will be held in reset. Check the DSQ 2041 (the source of the sync signal). Check the DSQ2047 bridge cards and fibers. Check the DSQ 2043 is configured correctly for DSQ back or processing bank operation. If the problem persists contact MEG Core staff for assistance.

c. Flashing yellow – Exit Acq then turn the power off and on and try again. Indicates a failure in the self diagnosis. If the problem persists contact MEG Core staff for assistance.

d. Solid yellow DSQ2045 - Exit Acq then turn the power off and on and try again. Indicates a problem in the self diagnosis of DSQ2045. If the problem is persistent contact MEG Core staff for assistance.

e. Solid yellow DSQ2010 and/or DSQ2043 - Exit Acq then turn the power off and on and try again. Indicates that there is no clock signal supplied to a bank (via the DSQ2041 and DSQ2047 fiber link).If the problem is persistent contact MEG Core staff for assistance.

f. An entire bank or even several cards within a bank fail to boot - check the power supplied to the bank. Contact the MEG Core Facility staff for assistance.

g. Slow boot – if a DSQ2043 takes 60 sec to boot rather than the regular 12sec, this is because the data fiber optic link between banks is broken or somehow disconnected.

h. Flashing Green Lights – if green lights still flashing after launching Acq then exit Acq. Turn the power off for 5-10 minutes then turn on and try again.

i. Report all occurrences; Fill out a Variance Report. Follow-up with the MEG Core staff.

Contact MEG staff for assistance if unable to resolve problem(s).