Question about Sony STR-DE525

2 Answers

When power on it only shows protector and it doesn't work

There is a feature" called PROTECTOR. It protects the system from short circuit or dangerously high volume levels, the system will shut down and go into this protection mode to avoid blowing speakers or damaging other equipment connected to it. How can it be fixed so it can work again?

Posted by on

  • gilbert0 Apr 10, 2008

    Does this unit have a rest button ?

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Is there a reset for this 

Posted on Apr 10, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,234 Answers

The output transistors are probably defective. These are MN and MP transistors available from Sony and run about $12 each. There may be other components in the output stage that need to be replaced as well. Expect about $25-$40 in parts plus the local labor rate.
Dan

Posted on Mar 26, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have sony digital audio/video that fuse blew i replace the fuse and it keeps showing protector


The fuse acts as a protection against shorts and circuit defects.
Try totally disconnecting the power source and allow to cool down for 10 minutes.
Reconnect system to power source and attempt to use.

May 28, 2014 | Audio Players & Recorders

1 Answer

I have a Sony dvd player DAV-DZ870W when turned on it displsys the word PROTECTOR push power what is the cause of this?


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?

Apr 23, 2014 | Audio Players & Recorders

1 Answer

MY SONY HBD-DZ810 HOME THEATER IS CONSTANTLY SHOWING PUSH POWER PROTECTOR


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

Dec 20, 2012 | Sony DAV-HDX500 System

1 Answer

NAD M3 power light turns red immediately and PROTECT message displays. Amp keeps functioning but volume control doesn't work up or down.


Hello
Check the connection to speaker with this amp, for any short or any other fault. disconnect the outputs, ie, speakers from the amp, and switch it On, and see the protect display comes or not. If it comes, the fault is internal and the set need service.
Your M3 dual Mono integrated amp, is of high output power and its outputs are protected against any overload or short circuit. If the system detect any among this condition specified above, it will show protect mode display.
Never load this amp, as protection display is there, as it may damage the speaker or its internal power amplifier section circuits, may cause more money to get it repaired. OK.

Jan 23, 2012 | NAD M3 Master Series Integrated...

1 Answer

Hi Sir , Sony DVD Model Number DAV DZ270 now the screen showing push up power protector. and it is not working . how to resolve this issue


It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise like a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.
You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias , maybe a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the protect is off then check for short on the speakers.

Thank you for using Fixya

Sep 23, 2011 | Sony BRAVIA® DAV-HDX576WF Theater System...

1 Answer

Why does d-link 8 port keep hanging and most especially when power goes and when itsback, the internet is not on not untill you have to restart the switch. its so annoying wat can i do so that i can get...


Hi, IF the D-link kept on hanging after there is a power outage, it is a security feature of the router not to short circuit. What it does is it protects the router for any power surge. If the router doesn't have that, it will be defective. What you can do to prevent this from happening is to get a power surge protector. so that the router wont turn off suddenly. You will be the one to turn it off.
Thank you for using Fixya. Your recommendation is highly appreciated for the free support.

Aug 16, 2011 | D-Link DES-1008D 8-Port Ethernet Switch...

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

Stereo amplifier shutdown.


  • The amplifier is showing the protect mainly due to a safety feature on the power circuit. The fault could be failure or short in the output stages, short in the speakers, fault in the power ciicuit or the error amplifier that triggers the relay.
  • To trace the fault it is impotant to make the test in the main board, disconnect the power to output to confirm if the output is faulty. similarily disconnect the powering circuit one by one to identify. replace or disconnect to confirm. Hope this helps. Good day

Jul 11, 2010 | Sony Audio Players & Recorders

1 Answer

Sony xplod 1200 watt amp quit no kind of protect lite on please


short answer yes... Long answer... Amp Failure: There are many different ways that an amp can fail but the two most common failures are shorted output transistors and blown power supply transistors (< those are not blown). There are several types of protection circuits in amplifiers. The most common are over-current and thermal. The over-current protection is supposed to protect the output transistors. Sometimes it doesn't work well enough to prevent the failure of the output transistors but it will work well enough to shut the supply down before the power supply FETs are destroyed. If the amp remains in protect mode, goes into protect mode or blows the fuse as soon as the remote voltage is applied, shorted output transistors are almost certainly the cause. If the fuse protecting the amp is too large, if the protection circuit doesn't respond quickly enough or if the power supply is poorly designed, the power supply transistors may fail. If you see a lot of black soot on the power supply transistors (near the power transformer), the power supply transistors have failed. Soot on the board doesn't necessarily mean the transistors have failed. Sometimes, technicians don't clean up the mess from a previous failure. Transistor Failure/Checking Transistors: In general, when a transistor fails, it will either short (common for output AND power supply transistors) or open (common for power supply transistors). Transistors act like valves. They control the current flowing through a circuit. A shorted transistor acts like a valve that's stuck open (passing too much current). In the case of an output transistor, the shorted transistors tries to deliver the full rail voltage to the speaker output terminal. If you've ever seen a damaged amp that pushed or pulled the speaker cone to its limits when the amp powered up (common on some Rockford amplifiers), that was almost certainly due to a shorted output transistor. When checking transistors, you most commonly look for shorted connections inside the transistor. You do this by using a multimeter to look for low resistance connections between the transistor's terminals. Note: I used the terms short and open on the previous paragraph. A short (short circuit) is a path through which current flows that should not be there. An open (open circuit) is a break in the circuit. It is most likely the power supply that has taken a ****.

Jan 01, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Surge protectors


Hey Laduell,

Before anything else, it's probably best to explain the differences between power surges and flux. Power surges (also called voltage or electrical spikes) are generally caused by a sudden, massive increase or decrease in the voltage flowing through an electrical circuit. Flux, on the other hand, can be defined as the actual voltage flowing through a circuit at any given time.

Whenever an electrical device turns on, turns off, or changes modes of operation, it can cause slight disturbances or differences in the voltage flowing through an electrical circuit. Exactly how much of a difference is made may be dependent on the type of electronic device attached, though major electronics and appliances will have a larger "pull" than smaller devices, like clock radios. The more devices are attached to the same circuit, the larger these voltage differences may become.

This fluctuation in voltage - combined with other electrical, magnetic or radio frequency interference ("noise") - has been known to cause problems or even damage in some electrical devices. To prevent such damage, many manufacturers may include "noise reduction" or "EMI/RFI protection" features in their surge protectors.

As both Dynex and Monster Cables appear to include such a feature in many of their products, the price difference you are seeing may simply be related to the number of additional features that the Monster Cable surge protector offers, though this cannot be guaranteed.

If you're in doubt about your purchase, I would strongly suggest contacting either manufacturer for more information. Most manufacturers are able to provide you with detailed descriptions of their product features, and one of the two may be able to point you towards an online FAQ if one is available. Dynex's toll-free hotline is 888-305-2204, and Monster Cable can be reached at 415-840-2000.

Hope this helps you out.

Sincerely,
Aaron
Go Ahead. Use Us.

Jul 18, 2008 | Televison & Video

Not finding what you are looking for?
Sony STR-DE525 Logo

Related Topics:

345 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

4804 Answers

The Knight
The Knight

Level 3 Expert

72230 Answers

Are you a Sony Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...