2019-10-24
KATCH ONE – HDMI Setup Guide
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KATCH ONE – HDMI TROUBLESHOOTING GUIDE
The purpose of this document is to provide a detailed guide for setting up and troubleshooting KATCH ONE
when using the HDMI connection. The guides are based on the experience gathered during the extensive
field testing during development of KATCH ONE.
HDMI Features
Two HDMI features are used:
HDMI-CEC
CEC (Consumer Electronics Control) is a feature of HDMI designed to allow users to command and control
devices connected through HDMI by using only one remote control. For example, by using the remote
control of a television set to control KATCH ONE.
Different TV brands use different names for the CEC feature. The following list includes some examples:
Samsung:
Sony: Bravia Sync/Link
Philips: EasyLink
LG: SimpLink
HDMI-ARC
ARC (Audio Return Channel) is an audio link feature of HDMI 1.4 meant to replace other cables between
the TV and the A/V receiver or speaker system. This direction is used when the TV is the one that generates
or receives the video stream instead of the other equipment. A typical case is the running of an app on a
smart TV such as Netflix, but reproduction of audio is handled by the other equipment. Without ARC, the
audio output from the TV must be routed by another cable, typically optical or mini jack, into the speaker
system.
ARC is activated using CEC commands communicated internally between KATCH ONE and the TV, so CEC
must be enabled for ARC to work.
Using TV with HDMI CEC and ARC connection
Connecting KATCH ONE to the TV using only a HDMI cable requires that the TV supports HDMI 1.4
(minimum) with ARC functionality. If your TV does not support this, then you must use HDMI together with
an Optical connection for the audio signal. Please see the next section for how to use the optical
connection.
Prerequisites
TV must support HDMI 1.4 or later
TV must have a HDMI input with ARC support. Typically the input is labeled with “(ARC)”
The HDMI cable must support HDMI v1.4 or later, also called a “High Speed HDMI Cable”
HDMI CEC must be enabled in the TV settings
If a setting is available for HDMI ARC, then this must be enabled in the TV settings as well
Receiver/HDMI/ARC Audio format must be set to “PCM” only (though some TVs will also work
when set to “Auto” or similar).
Connecting KATCH ONE with TV
1.
Make sure that all prerequisites are fulfilled
