Originally Posted by Gary Quiring
I read something on a prior post (#271) about a secret option by holding down the Enter button and then pressing the standby button would bring up some options for HDMI. I cannot get this to do anything, was it removed in the recent firmware update?
I have the latest firmware and it is still there. Here are the specific instructions:
From the front panel, Press and hold 'Dimmer' then press 'Return' (NOT enter). An onscreen menu for the modes on each input will appear. Use the front panel up/down arrows controls to select the desired input lines then the left/right arrows to choose a mode. Each have Modes 1 through 3 but Mode 2 is not recommended. Press 'Return' to exit this screen.
There is also a separate setting for Standard or enhanced 4K Signal format. Most people find it already set to enhanced, but you can try it:
While pressing DIMMER on the main unit, press AUTO/DIRECT to display the current setting on the display. While this is being displayed, while pressing DIMMER on the main unit, repeatedly press AUTO/DIRECT to switch the setting. Select ENHANCED when the AV component connected to this unit, such as a TV or player, and the HDMI cable (*) supports the high-definition 4K signal formats (4K 60p 4:4:4, 4:2:2 and 4K 60p 4:2:0 10 bit). Select STANDARD when the AV component connected to this unit, such as a TV or player, supports the standard 4K signal format (4K 60p 4:2:0 8 bit).
One other thing to try is in the TV/OSD menu and set it to output at 4K instead of auto, although this may just upscale a 1080 image.
I have a 65C9 and have all sorts of handshake issues with the VSX-LX503 that result in no video signal that none of the above solutions could fix. I've found that powering off the C9 with the power button on the TV itself and then turning it back on usually resolves them. Not sure if the LG, Pioneer, or both are at fault. Could be both since they each require CEC to be on for eARC.