Mystery of the missing blue light.
This has been driving me mad for the last couple of weeks. My Onkyo TX NR 509 receiver which is connected with/to a Panasonic blu ray player BMP BDT 310 and Panny television TX P50 GT 30B via HDMI just wont display the blue light when processing Dolby or DTS despite indicating on the front panel that it is doing so. I have poured over the manuals repeatedly and all settings are bitstream. Connections are: DVD player to receiver, then receiver to telly ARC HDMI input. It was working a few months ago but wonderd if my son had inadvertently changed the setings.
It certainly sounds like Dolby processing but where is that nice blue light?
Yep - everything seems to be at the correct settings. Can't be though, !
Decided it cant be the dvd settings as when I watch Dolby encoded Freesat HD or Freeview HD movies still no blue light. So it is either the tv or receiver or the cable.All suggestions welcome
I though the blue indicator is for pure audio mode, not HD codecs.
Maybe you are right and my memory is not what it was. I have two systems and my older Yamaha receiver displays the blue light at the slightest sniff of a Dolby signal. I could have sworn that the Onkyo did display a blue light previously. Time for a lie down, methinks.
I though the blue indicator is for pure audio mode, not HD codecs.
Every amp I've ever seen it's to indicate digital surround decoding (doesn't have to be HD, dolby digital or dts will do it).
I know mine's an older Onk than yours, but I don't have any blue lights at all with SD or HD soundtracks, just small red icons within the main display.
Only blue lights on the unit at all are the volume knob and the Pure Audio indicator.
Sorry, but to be absolutely clear with my understanding of your reply, you are saying there should be a blue indicator light on the display panel?
Sorry, but to be absolutely clear with my understanding of your reply, you are saying there should be a blue indicator light on the display panel?
If this is aimed at me, then no, there's not a single blue light on the unit, regardless of standard or hi def soundtracks. Unless the 'Pure Audio' mode is engaged, but this also turns off the dispay, so it's easy to tell if you're in Pure Audio mode or not.
As I said though, my 875 is a few years older than your Onk and things may have changed in the interceding years.
If this wasn't aimed at me...... Sorry.

Thanks, Big Chris. I think you - and everybody else is correct - and I am wrong. On looking more closely at the front panel the red Dolby logo appears as does dts and the sound seems ok. The memory does play (infuriating) tricks.
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David @Frank Harvey Hi-Fi, Coventry
Mitsubishi HC7000 / Oppo BDP103 / Audiolab 8200AP / Rotel RMB1575 / kick ass speaker system