Onkyo Tx-Nr686
7.2 channels, MW, FM
Question about Onkyo Tx-Nr686
Is there a way to set the SUB output of the TX-NR686 to Full HD? Main is supposed to supply my Samsung TV with 4K, the SUB output is supposed to supply my non-4K projector. I have not found anything in the settings.
I have the same configuration 4k feed player (Swisscom TV), a 4K TV on the Main and a FullHD beamer on the SUB output.
The output resolution (4K, FullHD...) cannot be set directly on the device and the receiver does not do any picture scaling. However, this is not absolutely necessary:
On the receiver, you can choose between the output modes MAIN, SUB and MAIN+SUB (combined). The HDMI handshake to define the resolution, among other things, is looped through (more or less transparently) by the receiver (MAIN or SUB mode). In combined (MAIN+SUB) mode, the highest possible resolution is selected that is supported by both display devices at MAIN and SUB (in this case Full HD). The picture is also output mirrored on both units.
However, if one device (e.g. beamer) is switched off (standby) at the SUB output, the receiver recognises this and allows 4k again (TV at MAIN). Strangely, this only works when the projector is in standby. If the projector is completely disconnected from the power supply (but connected to the SUB output via HDMI), only FullHD is output on the TV via the MAIN...
Long story short: It should work. Probably automatically (MAIN+SUB mode) or otherwise by manual switching (MAIN or SUB). Unfortunately, switching the output mode is only possible via the (Quick) menu, which is a bit awkward.