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Denon DRA 335r 2 Channel 124 Watt Receiver

Nov 3, 8. Thank-you for the links to the manuals.

The speaker selection switch needs to be cleaned or replaced. It is quite likely that one channel is defective – a common problem with ‘second hand’ equipment. Let me try this again as I appreciate the advice being provided and as such am confirming the steps I have taken below.

After that, you can post your question and our members will help you out. Nov 4, 9.

Try them if you have. Tested Speakers “B” in same way. I did confirm via another receiver that both speakers are in working condition. I appreciate the time and support provided. 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. 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.


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. Similar Threads Speaker not working. I am also trying to find a User Manual for this receiver. Discussion in ‘Troubleshooting and Repair’ started by Pepi9, Nov 3, I am currently just trying to get the receiver to work in Tuner mode.

Denon DRAR Manuals

Nov 3, 2. I’ll just start out of the gate with what I usually find wrong when this happens: On a more positive note, these are widely available as replacements so fixing the unit seems more than probable. Having said that, the only connections I have made are: Turntable only working on one channel. 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.

Nov 3, 1. You’ll need to choose a username for the site, which only take a couple of moments here. 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.


Nov 4, Ask a Question Want to reply to this thread or ask your own question? Dec 7, 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

Nov 3, 5. Turning on the power and ensuring that I selected the “Tuner” mode, I located a stereo signal. That may not be your problem and you may have to troubleshoot to find the electronics failure, You must log in or sign up to reply here.

Denon Receiver Acting Strange. The headphones are wired in circuit PRE-the A-B speaker dta switches therefore there is a fault in the amplifier stage of one channel. 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.

Nov 3, 6. Is there an easy way to clean the speaker selection switches?

Do you have headphones and a socket to use them in? If sound comes out of both sides, then the tuner switch? Nov 3, 3. Search Forums Recent Posts.