Question about Denon DRA-275R

Open Question

No sound from Denon DRA-275R

The screen is working, all buttons and switches too, but I don't hear "Click" sound from relay what applies power to output amplifiers when I start up the receiver. One of transistors C1841 in power amp is hot, but the transistor itself is OK and I found DC voltage (around 9V not stable)on 1 output from preamp BA!15218 (this IC is OK as well, I replaced it for the new one).
Could somebody give me advise?
Thanks a lot.

Posted by on

5 Suggested Answers

  • 4234 Answers

SOURCE: Denon AVR-3105 Unit tries to

Look for open resistors in the same area. Also, if the transistors that you replaced are the output transistors, you should replace their compliments as well. I don't have the service manual with me at the moment, so I'm juist giving you generalities. If you can, lift the center pin of the output transistors and measure (and post) the voltage readings on each of three pads for each transistor. That should give me enough info to guide you further.

Thanks,
Dan

Posted on Oct 07, 2008

  • 1 Answer

SOURCE: Denon DRA-25/25L Stereo Receiver.

Without looking at the schematics for this particular model, I'd surmise that the click is indeed a speaker protection relay. Generally this is fed by a number of different sense circuits that watch for power amp issues and/or excess speaker current and/or power supply output stability. Although the relays do indeed fail at times, generally it is not the relay that is at fault. If you have a scope and a schematic, you can check the various circuits that feed the relay for the exact cause. If not, you can do some experiments that might help deduce the problem: e.g. do headphones work when speakers do not, does the relay click on when no speakers are connected (or selected), etc. In my experience, it is most often the output transistor(s) in the power amp. But not always ;-)

Posted on Oct 15, 2008

smarthome2
  • 1114 Answers

SOURCE: Denon AVR-2309C1 will not play sound through

Turn off zone 2 then turn your receiver on the main zone on Radio, tune in a station and check for audio. Post a comment and let me know if audio works that way. If you don't have any audio, list your other equipment makes and models as well as how they are interconnected to your receiver (cable type) and I will help you troubleshoot

Posted on Jul 01, 2009

  • 336 Answers

SOURCE: exit transistor A1489 and C 3853 for a Denon Model

Goto www.mcmelectronics.com and search for 2SA1489 and 2SC3853

Posted on Dec 03, 2009

  • 2 Answers

SOURCE: denon dra-95vr receiver has no sound out. All

Right on!
Jumpers was my problem. Luckily I had a pr. of short RCA's because my NAD jumpers were too small to reach across.

Posted on Feb 08, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

No power in receiver


If main fuse is blown then you have shorted output transistors

Mar 29, 2014 | Denon DRA-275R

2 Answers

Denon DRA-275R


Listen for a relay clicking inside. It you hear it but get no power, it is a problem with the relay. If there is no click, it is probably the power supply.

Aug 01, 2008 | Denon DRA-275R

1 Answer

How to connect speakers


Hello
Download the user manual to your set from internet. It have all the details.
Click here to downlaod it.

Apr 11, 2012 | Denon DRA-275R

1 Answer

When i search radio chanel with SCAN UP of DRA-275rd radio, he stop on a near frequency but not exact frequency, so i cant to tune in a station. could you help me please?


Check on the back of the unit for a switch marked "channel step" or something similar.Usually close to the anntena socket or connection.When you find it switch it to the alternative position.This should solve your problem.

Jun 18, 2011 | Denon DRA-275R

1 Answer

No sound to speakers with power on


OK. That tells me that the output section is good. This may sound silly, but check to be sure that the tape monitor switch is not on.

Dan

Jun 06, 2008 | Audio & Video Receivers

1 Answer

Stereo receiver is in a Panel Lock On mode and will not stay on


Hi, Press the B and the Mode buttons and then hit the power button.  This should unlock the panel....it worked for me.

Apr 12, 2008 | Denon DRA-397

Not finding what you are looking for?
Denon DRA-275R Logo

Related Topics:

217 people viewed this question

Ask a Question

Usually answered in minutes!

Top Denon Audio & Video Receivers Experts

 Elex
Elex

Level 2 Expert

49 Answers

jonpoint

Level 1 Expert

4 Answers

Tech Leprechaun
Tech Leprechaun

Level 2 Expert

61 Answers

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

Answer questions

Manuals & User Guides

Loading...