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Try them if you have. Do both channels work in any other mode?

Page 14 of the technical manual shows how and where to measure the amplifier bias current and by following those instructions you may be able to isolate WHICH channel the fault is in. If one side is still faulty, I would compare the amplifier voltages with the good side but this may be getting a bit deep for you.

Denon DRA-335R Manuals

Search Forums Recent Posts. Speakers “A” – connected both left and right speaker, ensuring polarity is correct for both. Upon turning up the volume, I am only getting sound from my right speaker.

Just wanted to follow up and thank you for the responses and suggestions for the non working left channel on the second hand Denon receiver I bought. Let me try this again as I appreciate the advice being provided and as such am confirming the steps I have taken below. As with many electronic items like yours, repair is always possible but the final decision may be based on either your skill sets in managing the repair yourself with our full assistance of course or handing it over to a ‘paid’ repair service where the costs exceed the value.


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Similar 335e Speaker not working. We need to isolate whether the fault is in one channel of the stereo FM receiver or in the amplifier itself.

Power cord plugged in. Thanks for your assistance. Sadly, there are no independent fuses PER CHANNEL so repair is likely to be down to replacement of something in the output stage of one channel – the main power transistor s are the usual suspects. After that, you can post your question and our members will help you out.

I appreciate the time and support provided. I am also trying to find a User Manual for this receiver. Having said that, the only connections I have made are: Nov 3, 5. Turning on the power and ensuring that I selected the “Tuner” mode, I located a stereo signal.

If sound comes out of both sides, then the tuner switch?

Denon DRA 335r 2 Channel 124 Watt Receiver

335rr Tested Speakers “B” in same way. I did confirm via another receiver that both speakers are in working condition. I am currently just trying to get the receiver to work in Tuner mode.

Nov 3, 7. Given that the other channel works we can take it for granted that the DC positive and negative rails are ok. Nov 4, If you have a mono switch, then switching to mono will provide the same signal to both audio amplifiers.

Turntable only working on one channel. Nov 3, 3. Nov 3, 8. Nov 3, 4. If you are ok with basic multimeter operation and use and reasonably skilled with a soldering iron I see no reason why you cannot successfully fix the unit.



Fortunately for me, I was able to return the receiver to the seller as I did not have any more time to spend on trying to repair it. You must log in or sign up to reply here.

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The headphones are wired in circuit PRE-the A-B speaker selection switches therefore there is a fault in the amplifier stage of one channel. Denon DRA amplifier won’t turn on after being left on for extended period.

Discussion in ‘Troubleshooting and Repair’ started by Pepi9, Nov 3, Not sure what you mean by checking to make sure I am operating the set correctly but I will have a look at the User Manual. I have tried this with both “A” and “B” speaker buttons engaged and get sound from the right speaker only 335t both cases.

Nov 3, 6. Denon Receiver Acting Strange. You’ll need to choose a username for the fra, which only take a couple of moments here. Do you have headphones and a socket to use them in? That may not be your problem and you may have to troubleshoot to find the electronics failure, 335r for the links to the manuals.

Nov 4, 9. On a more positive note, these are widely available as replacements so fixing the unit seems more than probable. Nov 3, 2. I’ll just start out of the gate with what I usually find wrong when this happens: I have ensured that the balance knob is in rda centre position.