20 Most Recent Denon Reciever Dra-345r Questions & Answers


DENON DRA-345R Memory Loss/Reset issues FIX

My 24 OLD Denon Receiver showed Radio Frequency settings Memory Loss, Power UP reset issues, loss of selected inputs. After reviewing the schematic I found a gold cap (big yellow ELKO) that is responsible of keeping uC Vdd under steady Voltage to keep all settings. According original spec it should keep all data 1 month minimum. I do not know if the issue is that the leakage current has increased somewhere, or that the capacitor lost its capacity. It concerns C643 8.2mF capacitor, near IC605 and D605. I replaced the capacitor with a PANASONIC EECS5R5V155 1.5F capacitor. WIth this capacitor it does not matter if the problem is caused by leakage current, as the 1.5F is >100x more capacity. The first time when the cap needs to be charged, the unit responded little strange, but since 2nd power up this problem is fully solved. The PANASONIC device fits excellent on the C643 position, no bending of wires needed.

BTW, compliments to DENON, the original components are soldered with low amount of solder, easy to remove with manual vacuum solder remover(don't know the UK word for it), so no baking, simply remove solder, take out component, place new one.

Unit is now working again as new.

Regards and success with the repair

PS: I found the component at tme.eu

on Jan 17, 2017 | Denon Reciever Dra-345r


DENON DRA345R Loudspeaker Relays Replacement

My 24 years old DENON DRA345R receiver stopt working properly, I suspected that the output relays contacts were not OK anymore. If your receiver is not working after power up, and you first need to increase volume to get unit make sound again, and than can go to lower volume, most likely the relays contacts are totally worn out. At a certain moment no sound was coming out of the amplifier, and the proection circuit started to react to the poor contacts, so I needed to do something. I replaced the Relays with a OMRON G2R-2A4-24DC, and this problem was fully solved. It is not an expensive relays. If you can not find a supplier, I bought it at tme.eu . Amplifier is now working again very fine for a few days, hope for many years to come.

Regards, and success with the repair,

on Jan 17, 2017 | Denon Reciever Dra-345r


Denon Audio... | Answered on Nov 14, 2020

Power off using the power button and press together TUNER PRESET CH + and TUNER PRESET CH. Remove fingers when Initialized appears on the screen. It will reset the Denon AVR-X2300W.

Denon Audio... | Answered on Nov 09, 2020

I had the same problem with my subwoofer unit. I found the zener diode ZD3 was fried. The pic below shows the diode and its clearly tagged ZD3. You need a multimeter to check this before you order anything. This diode should only transmit power in one direction. Its size and spec is 18v .5w zener diode. (that's 1/2 w) It's very inexpensive and the whole repair took about an hour. This is from a Boston Acoustics subwoofer MCS 160
Ok..the procedure is easy.
1) unplug the unit and bring it to a well lit work area.
2) remove the panel from the back and locate the board that is held to the panel by 4 screws and has the ZD3 diode. The pic below shows the diode at the end of my test lead. Note the direction of this part and reinstall the new one in the same direction. Its a simple de-solder and re-solder project. I elevated the new diode about 1/8 " from the board with a small strip of copper. This acted as a heat sink during the soldering and elevated the part above the board to help it dissipate heat later when in use.
3) re-install the board and plug in all the connections.
4) this worked for me and I'm enjoying my sound system again!..good luck0482b949-8492-43a6-91df-0fb2f0e6888b.jpg

Denon Audio... | Answered on Sep 23, 2020

This will depend on the Blue ray player and other equipment. For a direct connection to the receiver, if your player has either type of digital audio output (coaxial or optical), get the appropriate cables. Then connect the chosen cable between the Blue ray player and the receiver. Connect the Blue ray player to the TV with an HDMI cable. See page 10 of the manual, available at http://pdfstream.manualsonline.com/6/69f43064-f593-49b8-8d4a-23174b496e65.pdf , to see the connections for the audio sources. (I'll assume your Blue ray player doesn't have component video out or you would use the component audio to the receiver.)

If your player doesn't have a digital audio output, check your TV audio output. You can get the same result by sending the videos via HDMI to the TV and using the TV audio out to the receiver. Set the audio source to TV and leave it there for both TV and Blue ray and DVD videos. (Sometimes there could be a slight delay in the audio compared with the video signal when you do this. I've never noticed it with my Blue ray player signal going to the TV and the TV digital audio out to the Denon receiver.)

If you can't send the audio out to the receiver from either your Blue ray player or TV, then you will need some sort of HDMI audio extractor. You can find models with Analog Audio Out, Digital Audio Out or both. ( https://www.amazon.com/J-Tech-Digital-Extractor-Converter-JTDAT5CH/dp/B00BIQER0E lists units with both types of audio output. One models requires a 3.5 mm to RCA audio adapter.)

I hope this helps.

Cindy Wells

Denon Audio... | Answered on Aug 08, 2020

After you have set your clock time simply just hold down memo button and I goes to minutes and click memo once to save your chosen time.

Denon Audio... | Answered on Apr 29, 2020

I expect your tuner/amp has a fair number of ultra sensitive CMOS devices inside and a power surge is likely to be instant ***** for them - if the surge reached them.

Any piece of equipment that has a computer inside really should be protected by an anti-surge device.

Your Denon tuner/amp is a bit of really premium equipment and I advise you it is best to entrust it's resurrection to a Denon approved repairer.

Denon Audio... | Answered on Apr 26, 2020

Welcome to the most diverse technology & Telecommunication products provider in the US. We are the official partners of Plantronics, Logitech, Jabra, Gai-Tronics, Panasonic, Motorola, HIKVision, LOREX, RCI and UNIDEN technologies https://www.telegiants.com/

Denon Audio... | Answered on Feb 22, 2020

if you want to set your playback speed exactly right, you need a test tape with a test tone on it (3khz for example). now you hook a frequency counter to your tapedecks output and set the speed accordingly.

Denon Audio... | Answered on Feb 11, 2020


Denon Audio... | Answered on Dec 05, 2019

I find the best way to connect any equalizer is to connect via the tape monitor sockets, assuming that the AVR has one. From the equalizer in and out sockets - connect the Eq OUT to Tape IN on the AVR. And Eq IN to Tape OUT on the AVR.
Some AVR don't allow connections, due the equalizer interfering with Surround Sound systems. If you can connect switch off the equalizer when listening to Dolby or other surround formats, as it will spoil the sound.

Denon Audio... | Answered on Oct 12, 2019

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