Question about Sony STR-DB780 Receiver

1 Answer

Audio out problem

I have been using the Sony DB 780 for 3 years with much satisfaction. As a result of moving houses the amp/receiver remained idle for one and a half years. Few days ago I wanted to put it back in place and realise that:
1. front speakers no output 2. sub woofer no output 3. rear speakers plays faintly 4. center speaker output excellent.
Could someone tell me what the problem may be and what could be done? Best regards.
bil

Posted by on

  • Bilal Mahomedkhan Feb 09, 2009

    thanks jamaica121.
    i've check all my settings, cables and speakers. seems like only the fronts and the sub have no output. you think they have a dedicated ic just for them?
    regards
    bil

  • Bilal Mahomedkhan Feb 09, 2009

    thanks jamaica121. i've check all my settings, cables and speakers. seems like only the fronts and the sub have no output. you think they have a dedicated ic just for them? regards bilĀ 


×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers

Sounds like your sound output ic may have gone.this is normally connected to a heat sink.also check that sound output settings are ok before you go further

Posted on Feb 08, 2009

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do I set up receiver


HI YES YOURE GOING TO NEED A FEW RCA CABLES u. can use video 1 to plug youre tv in and use video 2 to plug in youre vcr ::::::::::connect youre speakers up to the red and black speaker terminals marked L & R..good luck

Jul 26, 2015 | Sony STR-DB1070 Receiver

1 Answer

Pioneer VSX-921 About a year old, and although it isn't defective, the volume is slowly moving down. (I mean over the months) When I got I i would set it at -55 dB to get a good sound level... Months...


You like it loud? Maybe your hearing is going... ;)

Seriously, this sounds like something to get fixed while it's still in warranty. It's not right.

Good luck!

May 07, 2014 | Audio & Video Receivers

1 Answer

On a sony str-dh710, is there any difference in the amp. level between setting the distance levels and the db levels? Also using the Video 2 input on the front of the reciever I'm not able to get any...


.. or read the manual about setup and getting multichannel audio from 2-channel sources. Calibration and Selecting a Sound Field.

Distance is linear spatial separation of two points. dB is audibility, sound pressure level, volume. The distance setting affects how the various channels are delayed to arrive at the primary listening position at the appropriate time to provide a plausible sound field. Simply making one or more speakers louder or softer will not affect the spatiality of it.

Apr 18, 2011 | Sony STRDH710

1 Answer

My Sherwood RD-6105 shuts off if I turn it up past 28 or 29 db (which isn't very loud). I'm using it in Dolby Digital mode. It even happens when I use it with my components that are analog. This just...


It's acting as if a short or near-short exists on the amp outputs at medium levels.

Disconnect one of your speakers at a time and try it. Make sure your speaker wires are tight and not shorting to anything and all channels have 6-ohms or more load.

Jan 16, 2011 | Sherwood RD-6105 Receiver

1 Answer

I am looking for a manual for the sony str-db 780 amp but in english can you please help me


Is it a US model? I can't find a listing at all direct from Sony. Is it STR-DB780 or STR-DB870?

For the 870 it's http://www.docs.sony.com/release/STRDB1070.PDF

Hope this helps

Jun 30, 2009 | Audio & Video Receivers

1 Answer

Marantz sr780 whole house system


try speaker a and b function unplug unit for a couple of hours. check your sound field.

Jun 01, 2009 | Marantz SR-780 Receiver

2 Answers

LOOKING FOR A MANUAL AND A REMOTE FOR MY STR-DB 780


Hello,
Please download user manual of STR-DB870 from Sony Support.

Nov 20, 2008 | Sony STR-DB780 Receiver

1 Answer

Sony str bd-930 connected via digital input to ps3,no sound..


on the ps3 in audio options you have to set it so that the sound is going through the optical and not the hdmi. this it was I think the problem is.

Nov 16, 2008 | Sony STR-DB930 Receiver

1 Answer

Sony STR DB-930 Receiver jumping into protector mode


I went through the amp/receiver and used small star washers on all the grounding screws I could find including the one securing the transformer, cleaned dust off all circuit boards, checked output transistors and fuses, all OK.

Re Assembled unit and it worked OK.

I will buy a fan and fan it to avoid sourcing heatsinks for the previusly suggested IC's.

Thanks for the technical help, sure solved my problem.

Regards

Darryl.

Mar 07, 2008 | Sony STR-DB930 Receiver

1 Answer

Years of good service...now it keeps blowing fuse


The voltage of the fuse is not the issue. It sounds like you may have some blown internal transistors (probably in the output area). Time for a trip to the repair shop I'm afraid.

May 18, 2007 | Sony STR-DE525

Not finding what you are looking for?
Sony STR-DB780 Receiver Logo

Related Topics:

270 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio & Video Receivers Experts

nexrad_chris

Level 2 Expert

117 Answers

Cindy Wells

Level 3 Expert

4758 Answers

Pieter Vleeshouwers

Level 3 Expert

1420 Answers

Are you a Sony Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...