Question about Sony Bdv-E780w - Home Theater System - 5.1 Channel

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Iam a common electronics engineer can you help me in fixing sony 5.1 home theater on protection mode

Suggest me technicay how to solve the protector mode problem in sony 5.1 home theater as i have checked out for the common issues

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  • Sony Master
  • 924 Answers

Hello,
I can tell you exactly how to troubleshoot a PROTECT problem, but the procedure is too lengthy for this forum. Please visit my website at audioserviceclinic.com. I will get you in the "Ball Park". Yes, there is most likely an issue on the amp board, but I troubleshoot to the component level, not board level, even if it was available.

Posted on Dec 19, 2014

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  • Sony Master
  • 1,054 Answers

The amp is bad. Would have to replace the main board

Posted on Apr 15, 2014

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Posted on Jan 02, 2017

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1 Answer

How to fix push power protector Sony DAV-DZ870W


try disconnecting all speaker wires from the main unit, then turn it on. If it still goes into protect - then the amp is blown and you need to replace the main board.

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Sony 5.1 home theater in protector mode help me to fix this problem


You unit is most likely has DC Offset(a damaged amplifier). Unless you are an audio specific technician, this repair is not a DIY. If you'd like more information, or would like to inquire about having your Sony repaired, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.

Apr 15, 2014 | Sony Bdv-E780w - Home Theater System - 5.1...

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I have Home Theater Sony DAV- DZ151Kb. Display Push Power and then PROTECTOR. I need Help


Hi,
Push power protect message appears when home theater got problem in amplifier output section and any output amplifier chip becomes bad, receiver set protection mode and refuse to power up to avoid further damage in circuit board.
It is very hard for novice to troubleshoot what output chip is defective out of six amplifier output ICs in unit, check by professional is needed to solve this issue.
Hope these info will help you.
Let me know if you have additional question.
Thanks.

Jan 14, 2011 | Sony Audio Players & Recorders

1 Answer

It says push power protector on my home theatre


Hello,
These Usually a protect fault will indicate a bad transistor in the amplification section. I suspect that the control circuit is sensing a fluctuation in the power supply and going in to protect mode. (assuming that the protect circuit itself is working properly) If a voltage is too high the unit will go in to protect mode to prevent damage to the speakers and the rest of the unit. I would take the unit in to a local repair shop and get a estimate of repair charges. Expect a 60 to 80 dollar repair charge depending on how many parts need to be replaced and what the repair labor rate is in your area.

Hope this help in solving the problem....

Oct 02, 2010 | Sony DAVHDX265 System

1 Answer

My home theater system is showing push power protector on the read out and nothing is happening.


Push power protect is an error message that shows unit got some problem in output amplifier section and protection circuit is activated to avoid further damage.
Local tv repair shop will help you to fix it as unit will take apart and soldering work is also involved to replace bad amplifier output chips.

Aug 25, 2010 | Sony DAVHDX265 System

1 Answer

My SONY HT-CT 100 Keeps going into "Protector" mode - even though there's plenty of airspace and the room that it's in is at 65 degrees farenheit


Protector mode does not just react to ambient temp. Try unplugging all the speakers from the back of the unit and turning it on. If it continues to go into protect mode, it is most likely a bad power supply or possibly a bad D/A circuit. If it does not go into protection mode when the speakers are disconnected, try hooking up one speaker at a time (while the unit is off) If the unit faults again when you turn it back on, it should point toward a bad speaker or crossed wires.

Dec 28, 2009 | Sony HT-CT100 Theater System

1 Answer

Magnavox MRD-510- when I plug it in, it just makes a clicking noise and the power button keeps flashing. When I unplug this unit it continues to click for 5 seconds. Only owned for about 5 months and now...


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.

Regards.

Nov 30, 2008 | Philips Magnavox MRD510/17 Theater System

5 Answers

I have a sony DAV DZ230 home theatre system


on my home theater display it shows protector push power

Nov 24, 2008 | Audio Players & Recorders

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