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Louie
Louie, Technician
Category: Home Theater-Stereo
Satisfied Customers: 12675
Experience:  Have been in the business 25+ yrs., down to component level.
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Why is it that am getting picture but no sound from my DENON

Customer Question

Why is it that am getting picture but no sound from my DENON avrx5200w?
Submitted: 1 year ago.
Category: Home Theater-Stereo
Expert:  Aric replied 1 year ago.

Hello, Please elaborate on the problem.

1) Is this the first time setup of the Denon?

2) What's the model number of the TV it's connected to?

3) What cabling/connections are running from the Denon to the TV?

Expert:  Aric replied 1 year ago.

Let me know when you're able to see my reply.

Expert:  Louie replied 1 year ago.

Hi and welcome to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, let's review the basics; first - would it work in AM or FM?

Customer: replied 1 year ago.
No sound on radio it stops when there appear to be a station but no sound
Expert:  Louie replied 1 year ago.

...and have you tried a RESET ?

Customer: replied 1 year ago.
ok I now have FM 107.90 and sound
Expert:  Louie replied 1 year ago.

This is significant; there is sound in tuner (radio) mode.

What devices are connected to the Denon using what kind of cables?

And how is it connected to what TV model please? ...likewise using what cable(s)?

Customer: replied 1 year ago.
I have been using my to TOSHIBA TV from 2014
SINCE 2014 using HDMI ON THE TV AND ARC ON THE RECEIVERI ONLY HAVE SOUND ON FM WHEN "PURE" on the remote is depressed
Expert:  Louie replied 1 year ago.

If running on PURE mode, then it would mean that the DSP (Digital Signal Processing) / surround system is bypassed.

As inquired above, have you tried a RESET?

A reset is both an attempt of a fix and as a test by process of elimination.

A non-corrective reset is indicative of a likely internal hardware issue.

Customer: replied 1 year ago.
I tried reset and at the completion, the receiver says "NO SPEAKER FOUND"Although all speakers tested positive for sound, it nevertheless tells me that no speakers found
Expert:  Louie replied 1 year ago.

As posted above, then it would appear to be an internal hardware issue.

Please post back how you would want to approach this and/or should additional information be needed.

Customer: replied 1 year ago.
During speaker calibration, all 11 speakers were working o
Expert:  Louie replied 1 year ago.

Is it still under some form of warranty?

Customer: replied 1 year ago.
I don't think so
I bought it on or about November 2014
Expert:  Louie replied 1 year ago.

I understand.

That it would run in PURE is the key; the DSP is bypassed. This in itself tells us that the DSP that processes the surround modes is most likely faulty. It would either be a low or missing low B+ or even capacitor issues and in some rare instances, the µ-processor and/or its peripheral circuitry has gone bad.

Repairs would then be needed.

I realize that the above information may perhaps be not what was expected. Unfortunately, there is no quick-n-easy fix and neither is there a workaround; sorry for having to be the bearer of bad news.

Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?

Perhaps more importantly, would be you comfortable working on the inside circuitry? ...LIVE?

Customer: replied 1 year ago.
I have several electronic tools soldering gun and iron solder etc
Customer: replied 1 year ago.
I do have an ohm meter and have access to other electronic tools
Expert:  Louie replied 1 year ago.

Great on the DIY!

Bear with me as I retrieve the Service Manual from my other computer.

In the mean time, please remove the top cover and visually inspect the wiring and connectors.

It would help to document all actions with and by taking pictures; lots of pictures.