Sony home theater system started blinking protect

Protect on a sony usually means there is a problem in the amp section. On that model, it would probably need to have the entire amp pcb replaced.

the protect means a circuit overload check that you dont have any wires for your speakers touching or backwardly installed if those are all fine you may have blown a fuse inside the receiver.

Check speaker connections and wires and make sure all wires are plugged properly. If problem still exist then unplug speaker one=by-one and test home theater to determine what speaker is causing Protect error.

Protect mode will kicking whenever a fault is detected.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

Power protect is an error message that some thing is wrong in your sound system and requires qualified tech.

Normally that error message appears when unit got problem in amplifier output section, either it is speaker problem or some output chip is fried.

Protect mode will kicking whenever a fault is detected.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

i have had samsung surround sound for couple months, only been used once, now when i power up, protect is displayed on front and then powers down, also, when it does work, sound is extremely low compared to when i first used it.

That is the system telling you it jhas shut down the amplifier circuit to protect itself from damage.
Check the speaker wires both at the back of the unit and at each of the speakers to see if any of them have come out or are touching anything they shouldn't be.

You may also have a blown speaker sending a short back down the line. So if you find no wires out of place, then disconnect each speaker and turn the unit off and on as you go until the message is not showing and sound is restored.

the system go to protect mode in case of trouble in output stage(power output component and cords and speakers.
try to connect each speaker one by one until you find the bad one change cord first for the bad one and check if not working you must change speaker itself.if all above does not solve the problem you must pass your sony to service center

Make sure none of your speaker wires are touching, this will cause it to shut down instantly.