Question about Audio Players & Recorders

1 Answer

Denon dra-375rd fuse keeps blowing even with no speakers attached the speakers may have been wired wrong in the past eg 2 8ohm speakers running off one terminal

Posted by kahukayak on

Ad

1 Answer

ABRsvcs

  • 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

In this case the output transistors are probably shorted. With the unit unplugged, check the pins of the output transistors (center to either outside pin) and if they read shorted, they need to be replaced. It is possible that the previous stage will also have shorted components. If you have no experience with this type of repair, see a service shop. The parts should not exceed $25.

Dan

Posted on Aug 12, 2009

  • ntek Jul 10, 2014

    yep, i think this is it. with multimeter i tested the leads of base collector and emmiters of A1633E and C4278E. both came back shorted out

×

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

No sound from speaker


i have an old Sony N350K stereo where wires are inserted into neg and positive spaces for the L and the R speaker however no sound comes through on any mode eg. tuner, tape or CD

Jan 02, 2014 | Denon Original Owners Manual For Dra-550...

1 Answer

Blows fuse


It is most likely the audio output semiconductors have shored, check all speaker wires for shorts, if okay! I suggest a professional to assess the situation.

Mar 17, 2012 | Denon DRA-365R Receiver

1 Answer

I have been told that the way I set up my DRA-375RD could damage the receiver. I added a sub-woofer to the one of the speaker outlets. Today, the right side speakers no longer function (both sets of...


Most subs are 4 ohm cabinets. That being said, if you added this to one of the channels alone, fine. If added while another speaker was also connected (A+B mode) and the other was a 4 ohm cab as well, then yes, you probably smoked that channel. The two 4-ohm cabs in parallel like that appear to the amp like a 2-ohm load. This amp is designed for a 4-ohm load minimum. It is likely that the output stage overheated and damaged the output transistors. I would have expected the amp to go into protect mode though. Let the receiver cool down and try again. If it works, then the problem is the low load and removing the sub will "fix" it. If not, then further examination of the output stage will be necessary.

Dan

Jul 15, 2010 | Denon DRA-375RD Receiver

1 Answer

I'm convinced the fuse is blown in Denon Receiver, I'm having trouble locating it...where is it?


There is a main fuse located either close to where the AC cord enters the unit or under a PC board attached to the transformer. In any case, it is unlikely that the fuse is the real problem. Is there a standby light at all or nothing at all? If there is a standby light, the fuse is fine. If the unit won't stay on or turn on, the problem could be a bad 5V supply or shorted outputs.

Please update this with any additional symptoms and I'll provide additional details.

Thanks,
Dan

Mar 16, 2010 | Denon DRA-375RD Receiver

1 Answer

Toyota enima 1996 door will not open feels like the lock is stuck


your door on the in side has 4two5 rods inside to tell what it is you will have to take off the door panal and try wd-40

Aug 12, 2009 | Denon DRA-375RD Receiver

1 Answer

Keep blowing out bass on speakers Denon 75rd


Thank you for responding. I called in an audio specialist to look at the whole system--he believes there is a problem with the amplifier. Will post what he finds out when he looks inside.

May 01, 2009 | Denon DRA-375RD Receiver

1 Answer

Amplifier keeping blowing fuse


This almost always indicates a blown speaker. If you have an ohm meter you can use that to test the impedance on your speakers. After disconnecting the speaker - touch the red lead to one connector and the black lead to the other. If it reads something other than 8ohms that speaker is blown.
If you don't have an ohm meter you can simply disconnect one speaker at a time and run that way until the fuse blows. If the fuse never blows then you've found the suspect speaker.
Sometimes blown speaker can hide by stealth. When cold everything is normal. When things start to heat up from use the failed circuit shorts and blows the fuse on your amp.

Oct 21, 2008 | Denon DRA-375RD Receiver

1 Answer

Denon DRA 395 flashing red power light


Needs to be reset or fuse blown. Take to repair shop, cover has to be taken off and fuse replaced. You could fix it yourself but the warranty won't be honored. Do it yourself electronic shop should have a replacement fuse, may have to be soldered in place. Repair shop, should cost around $30.00 to $45.00 to fix, price of fuse $4.00 to $6.00. Your choice.

Mar 27, 2008 | Denon DRA-395 Receiver

2 Answers

Right channel not working


Hi....you may want to check the speaker fuse, located on the rear of the unit.. sometimes too small wattage speakers get hooked up and the speaker fuse will blow as to not hurt the speakers.
Hope this helps.
Squipps

Feb 07, 2008 | Denon DRA-685 Receiver

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

Related Topics:

316 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

Muntejaya Ginting
Muntejaya Ginting

Level 3 Expert

10422 Answers

 Grubhead
Grubhead

Level 3 Expert

5700 Answers

The Knight
The Knight

Level 3 Expert

76455 Answers

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

Answer questions

Manuals & User Guides

Loading...