We have a Dekolink MW-DBDA-SMR-50W85-PS8-V1 unit. The Lambda power supply unit is dead, no output but the fan runs. We don't know what else may be wrong with the BDA. Do you have any of the Lambda V500LNL power supply units on hand for exchange/repair? We'd like to replace the power supply 1st and go from there as to whether it has any other issues.