Toshiba home theater SD-KT50SU shuts off "PROTECTION"
AFTER TURNING IT ON THE UNIT SHUTS DOWN AND A MESSAGE APPEARS "PROTECTION'" This has happened before and when I tried the system after returning home from travel it worked after I reinstalled the plug into the receptacle.
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You don't have to buy expensive cables to run wire for those surround sound ...Interconnect cables are important-in that your system won't work without them. .... If you use a rack or shelves for your AV gear, remember to put the amplifier or ... the projector remote; Power up the home theater system with the receiver remote ...
? 1:31 https://www.youtube.com/watch?v=oG17QKiI_E8
Feb 28, 2014 - Uploaded by dallas1999fan
Step 1 take apart Step 2 spin the fan Step 3 unplug the powercable Step ... his fault that your system is not fixed. i have the same stereo system and it .... Sony MHC-EC909iP Shelf SystemFeatures & Review - Duration: ... Red Blinking Power Indicator Denon Receiver AVR-488 - shuts off - won't stay on etc.
Hello Even after disconnecting the speakers, the systems shut down, means that there is something short inside the set. Normally, the output amplifier section circuits will have the short. The set need service, and may have to replace the audio output IC of audio secion. Contact the nearest JVC authorised service center at your town. OK.
Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; 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 and competent hands-on tech.
bad speaker polairity or crossed wires
cats like chewing wires so do pupys
and a lot of other small vermin like wires too rats mice dogs cats
check your wires then check the polairity failing that check unit 4 over heat
to check wires disconect 1 speaker at a time turn on reciever and turn it up
failing that check unit for in operational fan in rear of case
Protect mode will kick in whenever a fault is detected.
You get the unit not powering up, and sometimes you hear a clicking
noise, that is the protection switch that keeps shutting down the unit.
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.
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
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
It doesn't matter what you do, that the system will power down after being on for exactly a minute? Or do you find that when you try using it a few times in a row that the shut off happens a little sooner each time? Did this suddenly start happening or was it something that began occurring gradually (meaning it would power on for an hour and then auto shutoff)?
It sounds to me like some electrical component inside is failing and that the self-protection circuitry design is kicking in. Or it could be that the power transformer is worn out and can't maintain power for more than a minute.
Keep in mind that repairs to these older electronics can end up costing as much as it would be to buy a new unit (and new units offer much more technology anyway).
The protect message indicates that the output amp section has a problem. Normally this requires the replacement of the output transistors or the output amp pac. Expect the repair cost to be about $20-$60 for parts plus the local labor rate.