TZ370 front panel lights

Just received a new TZ370 for one of our satellite locations to replace an older TZ300. I noticed when I powered it on that the front panel LED lights are very dim, almost to the point you can not see them. You literately have to put your hand over the front of the unit to see the lights. I also have a TZ670 that will be at our main location and the front panel lights a very bright. Look at the included pic of the 2 units. Just wanted to know if I need to send this unit back or don't worry about it. The reason I ask is, because I have gotten a few pop-up errors ask I was going through the set up process. I will update the firmware and see what happens. I just wanted to see if anyone else has experienced this on any of the TZ units.