Question about Sony Audio Players & Recorders

1 Answer

Receiver blown? Red power light, but no didgital diplay

I have a Sony receiver STR-D985that is about 15 years old. My main receiver for my sound system, (6 sets of speakers, with a Niles HPS speaker selector connected to them). Worked great for a few days, then I inadvertantly deselected the ''protection'' button on the speaker selector, meaning I was powering probably 2 ohms... and the receiver got really hot and turned off. I waited an hour, and tried turning it back on. The red ''power'' lightcomes on, but no sound, and the digital display is completely blank. Is it possible there is afuse in the unit that blew, or it is unfixable? Which not incidently, is EXACTLY what the JVC receiver that WAS powering the system did.. got really hot, then no sound. When you turn the unit on, you get the red power light, but no digital display.

Posted by on

1 Answer

  • 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
  • 2,359 Answers

As a quick test,plug in a 1/4" headphones and tune for tuner radio signal.

I hope you can tune in on a station and check for sound quality.

As long as you are able to tune in on a station and able to listen it will be fine.

The power amp for your Sony STR-D985 is a MOSFET amp.

I would open up the casing and re-grease (White Lithium) the heatsink contact grease first.

Disconnect the Niles speak selector and connect the unit with direct speakers connection.


Please let me know after you do a test with headphone and direct speaker connection..







Posted on Jul 11, 2010

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

My Sony receiver amplifier model number Str-de315 has just stopped working clicks on 2 lights come on but nothing else k


no front panel display means one of twot hings: either the power transformer is blown, or the main power fuse. If the main power fuse is blown, then there are likely to be shorted output transistors that will need to be replaced.

May 03, 2014 | Audio Players & Recorders

1 Answer

MY RECEIVER JUST CLICKS BUT DONT TURN ON


Either the main power fuse is blown, or the power transformer is bad. If the fuse is blown, then there are probably shorted output transistors in the amp section that need to get replaced.

Sep 22, 2013 | Sony Str-k740p Radio Receiver

1 Answer

Sony receiver str-dg800 will not power on.


Unplug the unit from the wall and remove the outer case. At the rear of the main circuit board is a fuse. Check the fuse to see if its blown. If not, go to the transfomer at the front of the receiver and check the fuses at the transformer.

Aug 28, 2010 | Sony STR-DG800 Receiver

1 Answer

Sony STR DE-445 unit powers up but no sound


Check the fuse, Sony is known for its random problems with sound. The one I have you must tap it on the side. Its a flicker switch inside.

Feb 13, 2010 | Sony STR-DE445 Receiver

1 Answer

No sound output sony str


Unplug and replug connections in firmly and try again. Nothing? Check that the subwoofer is getting power. The sub sometimes has a built in fuse. Check that the fuse is not blown.

Feb 12, 2010 | Sony STR-DH500 A/V Receiver

1 Answer

Sony str-de845 powers on, relay clicks sound works for a few minutes then relay clicks again and sound stops. display stays on.


Hi there, can anyone help me? i cant seem to get my aiwa-d58 to get out of eco mode. no power, red light is on and every time i press the power button; the eco light clicks off and i no power supply to the whole unit. please help!

Jan 22, 2010 | Sony STR-DE845 Receiver

1 Answer

No sound out of left speaker


did the left channel work when u switched speakers, if so then the left speaker or wiring is a fault.if not then the output circuits on the amp are blown or the fuse is blown some amps have internal fuses in the output to protect the output transistors. unplug the power cord and take the cover off, look to see if u can find any fuses and check these for continuity u can hold these up to the light and u should see a fine filiment in one piece and not broken. these fuses sometimes blow just from age and use at high volume like a regular light bulb.If the fuse is blown replace with the same value else the output transistors will need to be replaced most likley along with the drivers.

May 19, 2009 | Sony STR-DE135 Receiver

1 Answer

"PROTECT"flashing, no response, STR-SE391


The audio amplifier IC are fried and need to be replaced

Feb 06, 2009 | Audio Players & Recorders

1 Answer

No output on main speakers


I have experienced a similar problem with my Sony STR-GX57ES and took it to a certified tech only to find it needed the power supply replaced. I opted to hunt down a compatible power supply but have been unsucessful thus far. That being said I picked up an STR-D665 for next to nothing and found the power supplies to be quite different (you would hope so any, with the ES meaning Elivated Standard and all) but with the D665 working flawlessly I'd rather have something working than nothing. Good luck!

Dec 06, 2006 | Sony STR-D665 Receiver

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

35 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

5017 Answers

The Knight
The Knight

Level 3 Expert

73691 Answers

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

Answer questions

Manuals & User Guides

Loading...