My samsung home cinema system switches off after a few minutes of playing and writes protection on the screen.after a red lisht flashes continuously on the standby,what could be the problem?

Check all your cables, connections and speakers. If they are all good, then either there is a fault on the protection circuit or the power amp has a fault on it. If the unit has a fan built into it check that is working. Sometimes the fan can get blocked up.

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

hi,i can't connect my audio tv to cinema theater dvd

you need to change 5q tranzistor.if you dont have short circuit on pin 9 to ground on flat who comes from amplifier

maybe the audio amplifier IC´s are in bad conditions and need to be replaced

check wiring on speakers it sounds like you have some wires touching together somewhere or you have a bad speaker.

if you got all the lead you should have fibre optics which connects from dvd to tv and then set your dvd to digi in. you should get the sound. i have same cinema system and i have done the same

The fan is going bad and when u play dvd's the spining of the cd is acting as a fan witch is why they play longer then any other mode i had the same problem 2 times the second time samsung wanted 160$!!! thats bull because it keeps going out so what u do is open the case and remove the cover over all the capaciters and whatnot and replace that fan in the back then cut a hole in the top of the metal case directly about the cap's that warm up and install a aditional fan to act as a chimney a little noisy but i did this and the player had been runing in aux and radio mode for a few days stright now no problems at all it's alot of work and skill but for 2 5-15 dolar fans sure beats the 160 for repair or buying a new recever!

Getting audio from LG TV to play through Samsung Home Cinema System

See my post "HT-DB120 - PROTECTION due to shorted output stage "