Greetings all.
Having picked up this amp along with a Monitor Audio Silver 200 AV12 set up and a Panasonic DP-UB9000 I am currently in the process of setting it all up. I have encountered an issue with the ATV4K. I was previously running this through an Onkyo 646 and didn't really have an issue with it apart from it not passing through Dolby Vision. When I came to plugging into the 4500 it didn't seem to like the Dolby Vision at all and the screen went green! I have even gone out and bought a new Soundstrom Gold HDMI cable and that hasn't helped with it either. The only way it seems to be ok is when I plug it into the other ARC capable port on the TV (Sony 65ZD9) Has anybody else had a similar problem? Is there a way to fix it?
Any advice would be appreciated!
I'm thinking of getting this amp. I was reading the American based owners thread and on page 1 it has this advice about what to do if you get a green screen:
Green screen on TV: This is usually the result of either a bad HDMI cable or HDMI handshake issue with the TV. Try replacing the HDMI cables with "High Speed" (1080p) cables. Also try the HDMI Handshake resolution tips listed in item (k) below. If after doing the suggested tips, you are still seeing a green screen, give Denon a call as there may be an issue with the AVR's HDMI board.
k. HDMI Handshake Issues (audio/video dropouts): Handshake issues will most often present as "audio dropouts" or sometimes video display issues. Ensure the source device having the issue has the latest firmware installed and has been reset (ie. powered down, unplugged for a few minutes, then powered back ON again). For a more detailed HDMI reset try the following procedure ...
HDMI HDCP reset
With all devices powered on, remove the two HDMI cables at both ends from the source device to the AVR and from the AVR to the TV.
Power off all devices and disconnect power cables to all devices.
Wait 10-15 minutes.
Reconnect HDMI and power cables to all devices.
Power on the devices in this order ... TV, wait a few secs, AVR, wait a few secs, and then source device (although this is the generally recommended order, in some instances, you may have better luck powering on the AVR first and then the TV, then the source last ... bottom line if it's still not working, try a different power on sequence).
If the issue only involves the cable/sat box, HDMI handshake issues with cable/sat boxes are quite common (with any brand of AVR) and are usually always the fault of the cable/sat box not being designed to be connected to an HDMI repeater (ie. AVR) which is why they work without issue connected directly to the TV. Give your cable/sat box provider a call to see if there is a separate firmware update that can be applied to the box to resolve the issue although note that in some cases, a future firmware update to the cable/sat box may very well cause an HDMI handshake issue as well, so your best option to avoid the issue now (or in the future) is to connect the cable/sat box HDMI directly to the TV and also connect an optical cable from the cable/sat box to the AVR for surround audio. If you don't have an optical cable available, and your cable/sat box has a coax digital "orange" output, you can also use a coax digital cable (note: a "yellow" composite video RCA cable is a suitable substitute) and connect it to the SAT/CBL coax digital input on the AVR (ie. right next to the optical jack). Note that with this configuration (ie. HDMI straight to TV) you will lose the GUI/status menu for the cable/sat box, but you retain the capability to watch TV using the TV speakers only with the AVR in Standby (eg. news, sports, wife, kids). Another option, if your AVR features a component video input is to connect both a component video cable and an optical (or digital coax) cable from the cable/sat box to the AVR noting that although you gain the GUI/status menu feature, you will lose the capability to watch TV using the TV speakers only. You may also want to try upgrading to a different model cable/sat box.
Other possible solutions:
Try inserting an HDMI switch in between the AVR and the TV
Ensure there is proper ventilation around the AVR (at least 3-4" above the unit) and if enclosed in a cabinet, use a PC fan to exhaust the heated air out the back of the cabinet
HDMI performance can also vary between the different HDMI input jacks due to quirks of circuit board design so be sure to try each of the other HDMI inputs as one may work better than another
With the (S940H/X2500H) and higher models, if you are having a video issue, try setting the "Resolution" setting to the resolution of the TV(eg. 1080p) rather than using the "Auto" setting.
I hope that this will be of some help to you. I'm sure that you can find the thread for more details.