BaduFamily
Active Member
HI crew.
I've just finished chatting with a service rep from Denon about a new issue in our AVR. The issue is that we've been getting frame drops, and sometimes multi minute video cut-outs, in our video. Audio is fine.
The service rep is telling me that this is probably due to a voltage drop in long cables; that the AVR isn't able to put out enough voltage - infact that the voltage in the HDMI signal starts at the source device and degrades all allong the way.
this makes no sense to me at all.
our signal path is
VHS deck
Tivo
Apple TV all into ------> Denon ---> Oppo ----> Epson Projector
Oppo
which produes flickering dropoy from all sources.
any of the HDMI sources directly into the Oppo and then to the projector are fine. this rules out voltage drop on the long cable run.
going from the Denon straight to the projector produces drop outs.
The cables between the source devices and the oppo are about 1 meter in length.
so my reality check question is this: my mental model has the digital signal re-formed at each stage. re-formed isn't really the right word, but at least brought up to proper voltages. <<<--- is this the wrong model?
Odd behaviors -
a) if I display the denon setup menu overlaid on the signal we get no drop outs. the rep said that this is because the menu is 480 and uses less voltage. I mentioned that the menu is overlaid the original content so it's not actually 480 but she disagreed.
b) as a test I ran the AVR all night showing late night whatever. in the morning I was able to watch the first ball game yesterday with no drop out. Measuring the temp of the denon's back panel showed a nice 85 degree operating temp, so I'm now wondering if there isn't some mechanical problem with the connectors themselves - which is resolved as the box gets hot and everything expands.
footnote: the oppo is at the end of the chain for upscaling / darby
I've just finished chatting with a service rep from Denon about a new issue in our AVR. The issue is that we've been getting frame drops, and sometimes multi minute video cut-outs, in our video. Audio is fine.
The service rep is telling me that this is probably due to a voltage drop in long cables; that the AVR isn't able to put out enough voltage - infact that the voltage in the HDMI signal starts at the source device and degrades all allong the way.
this makes no sense to me at all.
our signal path is
VHS deck
Tivo
Apple TV all into ------> Denon ---> Oppo ----> Epson Projector
Oppo
which produes flickering dropoy from all sources.
any of the HDMI sources directly into the Oppo and then to the projector are fine. this rules out voltage drop on the long cable run.
going from the Denon straight to the projector produces drop outs.
The cables between the source devices and the oppo are about 1 meter in length.
so my reality check question is this: my mental model has the digital signal re-formed at each stage. re-formed isn't really the right word, but at least brought up to proper voltages. <<<--- is this the wrong model?
Odd behaviors -
a) if I display the denon setup menu overlaid on the signal we get no drop outs. the rep said that this is because the menu is 480 and uses less voltage. I mentioned that the menu is overlaid the original content so it's not actually 480 but she disagreed.
b) as a test I ran the AVR all night showing late night whatever. in the morning I was able to watch the first ball game yesterday with no drop out. Measuring the temp of the denon's back panel showed a nice 85 degree operating temp, so I'm now wondering if there isn't some mechanical problem with the connectors themselves - which is resolved as the box gets hot and everything expands.
footnote: the oppo is at the end of the chain for upscaling / darby