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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 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.
Denon Receiver Acting Strange.
Denon DRA 335r 2 Channel 124 Watt Receiver
Upon turning up the volume, I am only getting sound from my right speaker. If you have a mono switch, then switching to mono will provide the same signal to both audio amplifiers.
The speaker selection drw needs to be cleaned or replaced.
I am currently just trying to get the receiver to work in Tuner mode. Nov 3, 8. I’ll just start out of the gate with what I usually find wrong when this happens: If one side is still faulty, 335g would compare the amplifier voltages with the good side but this may be getting a bit deep for you.
On a more positive note, these are widely available as replacements so fixing the unit seems more than probable.
I did confirm via another receiver that both speakers are in working condition. Nov 4, It is quite likely that one channel is defective – a common problem with ‘second hand’ equipment. Sadly, there are no independent fuses PER CHANNEL so repair is likely to be down to replacement of something in the output stage of 335t channel – the main power transistor s are the usual suspects.
Nov 3, dea. 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.
Denon DRAR Manuals
Turntable only working on one channel. Nov 3, 6. Having said that, the only connections I have made are: 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. I have ensured that the balance knob is in the centre position.
Is there an easy way to clean the speaker selection switches? Nov 4, 9. Thank-you for the links to the manuals. I appreciate the time and support provided. You’ll need to choose a username ddra the site, which only take a couple of moments here. Do both channels work in any other mode? Search Forums Recent Posts. Fortunately for me, I was able to return the receiver to the seller as I rda not have any more time to spend on trying to repair it.
As with many electronic items like yours, repair is always possible but the final decision may be based on either ddra 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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Tested Speakers “B” in same way. Given that the other channel works we can take it for granted that the DC positive and negative rails are ok. 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.
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Ask a Question Want to reply to this thread or ask your own question? I am also trying to find a User Manual for this receiver. After that, you can post your question and our members will help you out. Discussion in ‘Troubleshooting and Repair’ started by Pepi9, Nov 3, Dec 7, Let me try this again as I appreciate the advice being provided and as such am confirming the steps I have taken below. I have tried this with both “A” and “B” speaker buttons engaged and get sound from the right speaker only in both cases.
Similar Threads Speaker not working. Turning on the power and ensuring that I selected the “Tuner” mode, I located a stereo signal.
Power cord plugged in. Nov 3, 5.