Question about JVC TH-A25 System

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Protection When I turn the power on for my system the word Protection flashes across the screen and then it shuts off. It once happened before and it started working again later that day but this time it still isn't working and its been about 2 weeks.

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Re: protection

Googlehead Here,
My solution was to break it all open save the 3 cd changer for an auto- lazy Susan for my pain killer selection I have since had fun desoldering all the caps and popping them with a power bar and an extention cord and some household current , the alum. heat sink brought me 45 cents at the scrap yard

Posted on May 01, 2008

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Re: protection

Did you check the diodes and capacitors?
Maybe this helps:

Also there are 2 z-diodes PZD1 and PZD2 near the power supply under and next to the big aluminum heating. One of it was burned out on my one...


Posted on Apr 24, 2008

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Re: protection

I have the same problem, Protection writting when i turn on the jvc th a25. Did someone solve somehow through a reset or something?

Posted on Apr 21, 2008

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Re: protection

I dont know if it will work for you - but here is what I did:
I turned off the power and pulled out all the cables. Left it like that for about 24 hours - and when I plugged the cables back in it just worked - and it has since.


Posted on Mar 18, 2008

Re: protection

Has somebody found a solution?

Posted on Mar 16, 2008

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Standby indicator flashes

When the "Protection" indicator comes up the display panel of my receiver or the On/Standby LED is flashing, does that mean my receiver needs to be repaired?
The "Protection" light comes on when the receiver's current sensing and thermal monitors detect some unusual operating condition that, if left unchecked, might damage the amplifier. This can happen if there's a dead short in a speaker wire or if you're using very low impedance loudspeakers at high volume for an extended length of time. On older model AVRs you may see the word "Protect" on the receiver's display. More current models will indicate a flashing red light on the Standby LED when a Protection circuit trips
n thermal cases, the circuitry will automatically reset after a few minutes of cool down and the Protection indicator will go out and normal operation will resume. If the protection light came on due to a speaker wire short, low impedance condition or a bad speaker, the receiver's power will need to be turned off to reset it. Before turning the power back on, all speaker wire connections should be checked for their integrity at the receiver side and at the speaker side. If the protection light goes on immediately after you turn on the receiver, disconnect the speaker wires at the receiver side and retest. If the receiver's protection light goes off, then there would still seem to be a problem with one channel's speaker wires or speakers. Connecting them one by one and retesting should allow you to find the problem speaker or connection.
If after checking all your connections, the Protection indicator stays lit, you may need to "initialize the microprocessor (see the FAQ on that topic) or take your receiver to an authorized repair center for a diagnostic. The "Initialization of the Microprocessor" or "reset" procedure can be found in your owner's manual on current model AVR product. Please note, this will erase all setup configurations in the system and require the system to be setup again. You may want to mark down the settings before resetting your receiver to aid in the setup process. If you had an installer setup your system, you can contact them for assistance and any associated costs that may apply to setup the receiver again would be the responsibility of the owner.

Jul 17, 2016 | Sony DAV-FR1 System

1 Answer

Why when we whatch movie the system off in few minutes?

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Jan 01, 2016 | Samsung HT-X40 System

1 Answer

My Sony home theater DZ290K had a push power protection on the display screen how can I fix it?

The "PROTECT" and "PUSH POWER" messages will flash alternately when the protective device of the amplifier has been activated because a strong signal was input, or if there is a short-circuit detected. Press the POWER button on the unit to turn off the system, and check the following items after "STANDBY" disappears.

1) Are the + and - speaker cords short-circuited?
2) Are you using only the specified speakers?.
3) Is anything blocking the ventilation holes of the system?

You may also refer to the following link for additional troubleshooting steps.
PROTECT and PUSH POWER flash alternately on the amplifier screen

Aug 26, 2015 | Sony Home Theater Systems

1 Answer

Samsung ht-x30 sutting down protection error

My samsung shuts down with "PROTECTION".Help me to solve the problem.David ilomo.

Dec 05, 2009 | Samsung Home Theater Systems

1 Answer

Need help with HT-z410

When your home theater's display reads PROTECTION, it means the home theater is over heating and the unit will shut down to prevent any damage. This can happen if the unit is stacked along with other electronic devices or the unit is in an enclosed area that prevents the unit from cooling properly. To decrease the chance of overheating, relocate your home theater to a more open area.

If the home theater display reads PROTECTION every time you turn it on, no matter where or how the unit is placed, it needs service. To set up service call Samsung Customer Care at 1-800-SAMSUNG (1-800-726-7864). Have your model number and serial number on hand to set up service.

Jun 29, 2009 | Samsung HT-Z310T Theater System

1 Answer

Protection displayed and shuts off When I press the power button Protection is appear on screen on my home cinema system dvd player

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

Jun 15, 2009 | Samsung HT-X20 Home Cinema 600W Theater...

1 Answer

I have a samsung home theater system HT-X70. After 10 to 15 minutes the word protection scrolls across the screen then goodbye and finally the unit shuts itself off.

ther is dc voltage applying your speakers by amplifire itself and turn on speaker protection circuit itself.
it can be happens because
1.loose connection in amplifire board
2.faulty output section of amplifire
3.short circuit of speakers
4.error detecting circuit faulty.
if youcan open the cover and clean the circuit for dust and resolder the circuit with 30 W soldering iron cairfully.if you want the more asistence please come again
ican hlp you more.

Jan 08, 2009 | Samsung HT-WX70 Theater System

1 Answer

Unit shuts itself off after 10 -15 minutes

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.

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.


Jan 08, 2009 | Samsung HT-WX70 Theater System

1 Answer

Protection mode

the protection feature is for shock protection and will go off if one of the speaker's positive and negative wires are touching check your wiring

Nov 11, 2008 | Samsung HT-SK5 System

2 Answers

Protection Error when switching on SD-43HK

You will need to get a service manual and trouble shoot what amp. circuit is defective. if you have no solid state printed circuit board experience, you really should take this unit in to a repair shop and have it estimated. There is no quick fix for this unit. Good Luck.

Mar 14, 2007 | Toshiba SD-43HTS System

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