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Why won't my Sony STR-DE185 Stereo Receiver have loud sound out of the speakers

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 336 Answers

SOURCE: sony receiver str-de185

Could need repair of bad solder connections or a cleaning of the pot. With the receiver off turn the balance pot back and forth several times, this may be all you need to do. If it improves a couple drops of wd40 on the pot and a couple more turns should clean it up.

Posted on Feb 28, 2009

mjjdesigns
  • 98 Answers

SOURCE: PROTECT DISPLAYED ON RECEIVER

This generally means you've got a short somewhere, and the received is trying to protect itself.

My suggestion is to disconnect all of your speakers at both ends, and reconnect them.

Most times this happens because a speaker wire is lose, and the positive and negative connections are touching each other, causing it to short out.

Posted on Mar 25, 2009

asnowman
  • 788 Answers

SOURCE: rear speakers no longer make sounds on stereo test sequence.

You may have a bad output IC on the rear channel. I would suggest that you swap the wires on the front and rear and do the same white noise test and see what changes. If you still have no rear output then you may have a bad rear amp. You can try other modes on the receiver and see if the rear speakers light up.

I hope that I have provided the correct information that will assist you in the resolution of this issue. If you have any questions, please post back with a comment to this thread.
If I have helped you with your question and/or solved the problem, please take just a moment to rate this post. Thank you!

Posted on May 03, 2009

larry james
  • 287 Answers

SOURCE: receiver str-v444es no sound on headphones or

discharge the output circuit! If you don't you will blow a 10 ohm resistor every time. I've worked on hundreds of these receivers I know. They need the output circuit soldered at the voltage driver ic's and quite possibly some capicitors replaced on the digital board. The caps mounted near the heat sinks dry up the fastest. These are nice amps. Larry's Electronics Sacramento Ca. ledstiles@hotmail.com

Posted on Apr 24, 2010

smarthome2
  • 1114 Answers

SOURCE: Sony STR-GX800ES receiver "protector" blinking - no sound

The most common problem found on FixYa for Audio Video2_bing.gif Receiver's is:

My receiver say's "Protect" or turns on then off. What's wrong? Seven times out of ten it is a shorted speaker or speaker wire. To determine your exact problem, the first step is to disconnect all speaker wires "at your receiver" Next: Turn the receiver back on. If your receiver still says "protect" or turns off, it needs to be serviced. If your receiver stays on; reconnect your speakers one at a time and power back up after each speaker. You may find that after reconnecting all speaker wires it works! Most commonly the small braids of wire from the + to the - have touched and have caused the problem. In some instances, you noticed the problem only when turning the volume up. either way, make sure the exposed wires to your receiver are no longer than 1/2" long and are completely under the screw down terminal or slide in. When you've found the wire or speaker with the problem, your receiver will go back into "protect" At this point, disconnect the wire from the speaker at the speaker that may be causing the problem then test again.* Note* Make sure speaker wires do Not touch each other as this Will cause a short! If you turn the receiver back on and it stays on, you now know the problem is in your speaker itself. To test your speaker, you will need a multimeter. Set it to ohms resistance and touch the speaker terminals, if there is a short internally the meter will read "1......" If it's an analog meter, it will peg to the right. There's your problem. Now, within any speaker there are quite a few possibilities as to what could be causing the problem. Most common is a blown coil and the speaker needs to be replaced. Some speakers have internal crossovers (usually floor standing speakers) and may have a shorted or burnt board (usually very visible brown burn marks on the board) and can possibly be repaired if your handy with a soldering iron. Now, if you disconnect the speaker wire at the speaker and it still says "protect" Check your wire for the obvious cut or nail thru the wire if possible. If your system has wiring that runs behind walls, you may need to use your meter again. Disconnect the wire at both ends, keep the ends separated, put your meter on ohms resistance and touch probes to the + and - wires at one side. If the meter pegs to the right or reads "1...." the wire is shorted and needs to be replaced or repaired at the short. Hope this helps.

Posted on Jun 13, 2010

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1 Answer

Sony str-de185 left channel very scratchy and poor; not speaker, wire, or connections


Could be an open resistor in the amp for that channel. Might have to have a pro look at it.

Mar 26, 2013 | Sony STR-DE185 Receiver

1 Answer

My Sony STR-DE185 is displaying "PROTECT". The manual says it is from a short circuit. Are there any known common problems with this unit related to short circuiting? Mike


If the speaker wires shorted together, it will trigger the protection circuit. If the output transistors/IC shorted out in the power amplifier section, it will also go into protection mode also.
Try disconnecting all the speaker wires to see if it will come on normal.
to have it fixed by the shop may not be worth it.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm

Jun 14, 2011 | Sony STR-DE185 Receiver

1 Answer

Sony STR-DE185 receiver powers up, but then goes into protect mode. what does protect mode mean and how can I get it off protect mode?


"Protect" is what it does when it senses a dangerous condition.


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.

Check for loose speaker connections at the speaker as a possible root cause for intermittent shutdown.

Jun 11, 2011 | Sony STR-DE185 Receiver

2 Answers

I turn on my stereo and the receiver says protect why


your speaker wires are touching if the plus or minus or (red and black wires) are touching it can blow the amp this is a protection. Check all the speaker wires on the back and makes sure they are not touching.

Jan 15, 2010 | Sony STR-DE185 Receiver

1 Answer

I have hooked by two bose 161 speakers using 14 gauge speaker wire (about 8 feet) to sony str-dg720. But I get absolutely no sound from the speakers. I have hooked the speakers to port A set of input...


You gots ta isolate the problem.  Disconnect the speakers and hook them up to a stereo you know that works.  If you don't hear sound coming out of the speakers, then you know the speakers are fu.k.d up, so you need to look on the speakers to see if there is a fuse that is blown that needs to be replaced.  If you got sound coming through, then disconnect them and hook them back to the original stereo making sure you got a good connection and all the wires are in good and tight.  Then turn your stereo on and go through the various channels like Tuner, Tape Deck, Aux, and DVD to see if you get any sound.  Also turn the volume knob up. If you don't get any sound after all this, you know there is something wrong with the stereo your using.

Oct 29, 2009 | Sony STR-DE685 Receiver

1 Answer

Sony STR-DE635, Sound from left surround speaker but not right


first turn the actual volume up on that channel on the reciver then make sure your speaker wires in the rear are using the same lenght each

May 18, 2009 | Sony STR-DE635 Receiver

1 Answer

Only Direct sound works good, and only two speakers


Some sound fields have reverberant effects that need adjusting so the levels become audible, such as in "stadium" mode. While playing one of these sound fields, navigate through the speaker setup menu and make adjustments to the "effects" percentage, and levels. Be aware however, that only in 4 channel stereo mode will your surround speakers produce sound 100% of the time. Also, in any form of Dolby Pro Logic mode you will hear more sound from the surround speakers originating from stereo source material than from monoaural material...example, a television station broadcast in stereo versus mono.

Mar 31, 2009 | Sony STR-DG710 Receiver

2 Answers

PROTECT DISPLAYED ON RECEIVER


This generally means you've got a short somewhere, and the received is trying to protect itself.

My suggestion is to disconnect all of your speakers at both ends, and reconnect them.

Most times this happens because a speaker wire is lose, and the positive and negative connections are touching each other, causing it to short out.

Mar 24, 2009 | Sony STR-DE485 Receiver

1 Answer

Sony receiver str-de185


Could need repair of bad solder connections or a cleaning of the pot. With the receiver off turn the balance pot back and forth several times, this may be all you need to do. If it improves a couple drops of wd40 on the pot and a couple more turns should clean it up.

Feb 24, 2009 | Sony STR-DE185 Receiver

1 Answer

Getting a "Protect" message in the display which then shuts down


The speaker wires were al little frayed, so I cut and stripped new 3/8" leads and when re-inserted the receiver worked fine. The problem was a short from the frayed wires touching either the back of the receiver or some other metal near the terminal.

Dec 06, 2008 | Sony STR-DE185 Receiver

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