Panasonic DP-UB820 BluRay Player UHD/4K
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Frequently Asked Questions and Answers
Will an Ultra HD BluyRay player work on a non-4k TV?
No. An Ultra-HD BluRay player will give no picture while playing BluRay discs (even non-4k discs) on a non-4k TV. If your player is connected via an AV Receiver or Soundbar then this will also need to provide 4k compatibility
Does my AV Receiver need to be 4k compatible for 4k?
Yes. Your receiver will need to have a minimum specification of HDMI-2.0 with HDCP-2.2 copy protection to pass 4k at 24/50/60fps. Although HDMI-1.4 is capable of passing 4k at 24fps, the lack of support for HDCP-2.2 prevents use of this feature with almost all 4k sources. An Ultra-HD BluRay player will give no image on BluRay playback without HDCP-2.2 support, even with regular (non-4k) BluRay discs.
Do I need 4k certified HDMI cables to run 4k?
Ideally, yes, but some older cables that were manufactured to a high specification may still work. HDMI is best thought of as a data transmission rather than video and as such the acheivable quality is down to the bandwidth of your cables. For basic 4k compatibility a bandwidth of around 10Gbps is required. This specification was introduced as a minimum standard for HDMI-1.4 certification and is capable of 4k resolution up to 24fps with Chroma sampling up to 4:2:2. 4k 50/60fps is not possible at this bandwidth. For the latest full 4k specifications a bandwidth of 18Gbps is required. This was introduced as a minimum standard for HDMI 2.0 and covers 4k resolution at 24/50/60fps up to 4:4:4 Chroma sampling. The longer your cable the more loss your HDMI signal experiences so when using longer cable lengths or installing inside walls and ceilings it is vital that you select a cable that is up to the job as if the data rate is insufficient you may receive no picture at all.
What do the different HDMI Version numbers mean?
Each HDMI version number has a minimum set of specifications that manufacturers must meet to be compatible with the latest video standards at that time. The different version numbers offer the following compatibility: HDMI 1.0 = HDMI plug types A & B Launched. Minimum Bandwidth 4.95Gbps. Guaranteed resolution 1080p, optional audio support up to 8-channel 192k/24bit PCM, Dolby Digital, & DTS. In practice most HDMI 1.0 equipment did not provide audio support HDMI 1.1 = as above but with optional audio support for DVD-A (MLP) HDMI 1.2 = as above but with optional audio support for SACD (One-Bit) HDMI 1.2a = as above with optional CEC (consumer electronics control) support for command signals between components HDMI 1.3 = Minimum bandwidth 10.2Gbps. Guaranteed resolution 1440p, Deep Colour support, optional audio support for Dolby Digital Plus, Dolby True-HD, & DTS-HD. Automatic Audio/Video synchronisation to improve lip-sync HDMI 1.3a = Compatibility improvements to 1.3 standard. Introduction of Plug type C (Mini-HDMI) HDMI 1.3b = Compatibility improvements to HDMI 1.3a HDMI 1.4 = Minimum Bandwidth 10.2Gbps. Guaranteed resolution 2160p (4k) at 24fps. Note that in practice Ultra-HD and most 4k sources will not work as HDMI 1.4 does not support the HDCP 2.2 copy protection required by Ultra-HD standards. Ethernet support at 100Mb/s. ARC Audio Return Channel. 3D compatibility. Introduction of Plug type D (Micro-HDMI) HDMI 2.0 = Minimum Bandwidth 18Gbps. Guaranteed resolution 2160p (4k) at 60fps. Optional HDCP 2.2 support for UltraHD & 4k copy protection. PCM audio support increased to 32 Channels HDMI 2.0a = as above with HDR Support for improved contrast levels HDMI 2.0b = as above with HLG support for improved contrast levels