Showing posts with label HDMI. Show all posts
Showing posts with label HDMI. Show all posts

22 September 2024

PRESS YOUR FACE UP AGAINST THE SCREEN [467]


Well, my television broke again, losing power to the screen for the second time in four years, in the same way it happened last time. With the memory of the previous two-week wait for it to be fixed rising to the surface, I threw up my hands and bought a replacement. Provided this one lasts for a few more years, I have realised this may be the last regular television I will buy.

My first personal TV was a fourteen-inch cathode ray tube TV bought for £139 in 1996, weighed seven kilograms (15.4 lbs), had two one-watt speakers, no subtitles or teletext ability, and used approximately 150 watts an hour, CRT screens holding high voltages even after turn-off. The back of it was riven with ventilation holes, because they were surely needed.

My new TV, a Sharp 32FH8KA, weighs half as much, has a thirty-two-inch LED screen like my previous Toshiba model, but this time with high dynamic range so effective that the backlight can be turned down to save power. Along with two twelve-watt speakers that have some bass, the unit is only a few inches thick – the circuit board and connectors stick out from the back of the TV, and is the only part that remains ventilated, because the screen hardly produces any heat, and because so little energy is lost through heat, it only uses twenty-six watts an hour. It is also fully Android compatible, making it pretty much a computer, into which other computers can be connected. With inflation, £139 in 1996 is now £271 – this new TV cost only £199.



Aside from the minimum expectations of a TV’s ability having greatly expanded over time, connectivity has also greatly changed. I only ever connected a VHS video recorder to the old portable TV in the 1990s, via the single SCART connector, but I now have an Apple TV box – “Android” is something that other people do – a Blu-ray player, a separate DVD player that accepts region 1 DVDs from North America, and an Atari Flashback console, all connected at once, covering all possibilities. 

While I am happy with the speakers on my new TV, a sound bar is usually the first add-on others would buy nowadays, especially if streaming services like Netflix, Amazon Prime and the BBC iPlayer are accessible through the TV itself – apart from the Sky Glass TV, made for subscribers to that service, TVs with built-in soundbars have not appeared, as if better sound is expected to be something that needs to be added to a TV. I could easily have bought a large computer monitor with enough connectors for what I require, but these doesn’t really exist either.

The ability to just buy an all-purpose screen may arrive if no unified decision is made on the future of broadcasting. It is not clear if “5G Broadcast”, using the mobile phone network to deliver TV signals, is the ultimate choice if more of the current TV signals are repurposed for mobile use, while satellite TV, my main source for “regular” broadcasts on my new TV, may only remain if Sky commits to continuing with it beyond the end of the 2020s – if not, why should SES build more Astra satellites? If then, my TV will become that all-purpose screen, but I should never fear, for the box and manual states it supports the H.265 video codec, should any UK broadcaster decide to start using it – that’s good, I suppose.

20 November 2021

AND THROUGH THE WIRE I SEE YOUR FACE [320]

In 2020, I bought a new television. My previous LCD TV, bought in 2011, was becoming clunky and slow in comparison for what I can now get for two-thirds the cost, in addition to a higher-quality LED screen. Connected to it is an Apple TV box, a Blu-ray player, and a secondary DVD player that allows me, living in Europe, to watch region 1 DVDs from the United States, a cheaper option than buying a Blu-ray player that covered this requirement.

 

However, I still expected to connect the DVD player via SCART, the only option available on it. What I had not banked on was the almost wholesale dropping of SCART connections from audio-visual (AV) equipment since I last had to buy a television. 

 

Known as PĂ©ritel in its originating country of France, and first appearing in 1977, SCART is the acronym of an organisation of manufacturers that created a shared AV connector standard, and the name of the connector itself. The intention of creating a shared standard was to simplify the connecting of different AV devices, whether they were analogue or digital, and to avoid incorrect connections. To that end, twenty-one pins were supplied to carry composite, RGB, S-Video and YPbPr component video signals, and analogue, optical or digital audio signals – your devices would then choose the best connection to make. SCART connectors also carry the control signals that allow, for example, a DVD player to be “woken up” from standby mode when your TV switches to its connection, and you could daisy-chain devices together.

 

This is something I did not realise until much later, because I did not know: for a long time, SCART leads were often the only connectors available to televisions in the UK apart from that needed for an aerial, and while we may be used to HDMI offering similar ease of use, HDMI is for transmitting digital audio and visual data, and not the analogue signals from older devices – there have been HD televisions and laser-disc players that used an analogue component signal of 720 or 1080 lines, but this was used mainly in Japan, where a version of SCART also gained traction, and was extremely expensive.

 

Where did this leave me, with my region 1 DVD player? There is a spare HDMI connector available on my TV, but the requirement to turn the analogue signal from the DVD player into a digital one that can be accepted by HDMI means that the cost of a converter was higher than I wanted to spend, while also requiring a power source to assist in processing the signal from analogue to digital. You can use the VGA connector that is now often included to turn your TV into a computer monitor, but while that will carry a component visual signal to the TV, it won’t carry the sound. 

 

In the end, I had to buy an adaptor to break out the composite signals from the scart lead to use the red, white and yellow AV connectors at the back of the TV. For the record, while SCART has not been a requirement on French TVs since 2015, which is perhaps what led to it being dropped elsewhere, the inferior composite signal and connectors created by RCA in the 1950s have apparently proved too ubiquitous on TVs worldwide to kill off.