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If you have a mono switch, then switching to mono will provide the same signal to both audio amplifiers. Nov 3, 3.

Having said that, the only connections I have made are: We need to isolate whether the fault is in one channel of the stereo FM receiver or in the amplifier itself. 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.

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

Used Denon DRAR Receivers for Sale |

Search Forums Recent Posts. You must log in or sign up to reply here. I’ll just start out of the gate with what I usually find wrong when this happens: Denon DRA amplifier won’t turn on after being left on for extended period. Denon Receiver Acting Strange. Let me try this again as I appreciate the advice being provided and as such am confirming the steps I have taken below. dea


Denon DRA 335r 2 Channel 124 Watt Receiver

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. Upon turning up the volume, I am only getting sound from my right speaker. On a more positive note, these are widely available as replacements so fixing the unit seems more than probable.

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. Do you have headphones and a socket to use them in?

Turning on the power and ensuring that I selected the “Tuner” mode, I located a stereo signal. Discussion in ‘Troubleshooting and Repair’ started by Pepi9, Nov 3, I have ensured that the balance knob is in the centre position.

The headphones are wired in circuit PRE-the A-B speaker selection switches therefore there is a fault in the era stage of 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. Tested Speakers “B” in same way.

After that, you can post your question and our members will help you out. It is quite likely that one channel is defective – a common problem with ‘second hand’ equipment. Nov 3, 5. Nov 3, 7. Thank-you for the links to the manuals. 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.


I have tried this with both “A” and “B” speaker buttons engaged and get sound from the right speaker only in both cases.

I did confirm via another receiver that both speakers are in working condition. 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.

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 am also trying to find a User Manual for this receiver. Turntable only working on one channel. That may not be your problem and you may have to troubleshoot to find the electronics failure, The speaker selection switch needs to be cleaned or replaced.


Fortunately for me, I was able to return the receiver to the seller as I did not have any more time to spend on dfa to repair it. Nov 3, 2. Speakers “A” – connected both left and right speaker, ensuring polarity is correct for both. Similar Threads Speaker not working.