The home theater system is a protection warning in two possible scenarios:
1. There is an internal problem that requires service, or
2. The positive and negative speaker wires are touching. Check both the rear the unit to make sure that the positive and negative terminals aren't touching each other. Then, you want to do the same at the rear of the speaker connections. If any of the wires are touching, that will cause the unit to go into a protection mode, which protects your equipment.
If after you have checked your speaker connections and no wires are touching , and you're still getting the PROTECT error, you may need to have your unit serviced. If you'd like further troubleshooting, please chat with one of our online technicians at the following link:http://www.samsung.com/us/support/