Best TV sets for onboard.

[PaulRainbow]

I don't know, possibly but I wouldn't take the risk. The voltage is stated for a reason so I would align with that personally.

I agree. My TV is 14V, as is my soundbar, both come with power bricks to convert AC to DC. Rather than use the power brick, i use DC-DC converters. The DC-DC converter is switched, so when i don't need the TV on i turn the switch off, which de-powers the converter and the TV obviously goes off, at which time there is zero power consumption. Same goes for the soundbar. My laptop runs from a 19V DC-DC converter, setup the same way. Phone and tablet charging is done from simple USB ports, again, no parasitic losses.

As an aside, i think you're a little generous with inverter efficiency. Rule of thumb is to divide the AC watts by 10 to get DC amps current draw. There is also, as i mentioned before, a standby loss from an inverter which is typically 0.5A to 1.0A. It all makes using inverters for small loads very inefficient.

That said, if someone chooses to be inefficient it's their choice. If free power from a solar array is greater than one consumes then it doesn't matter if some is lost to inefficiencies. If one had to run a generator or the main engine it's a wholly different thing. I previously put this to the OP and suggested that if he had solar to spare he's as well using an AC TV.

 

[PaulRainbow]

Post #29
“THIS MODEL RUNS ON 19v

You clearly did clarify the technical differences correctly.
I maintain post #29 was wholly misleading claiming that the model concerned was not mains powered which it clearly is. Whether it can be powered by DC also is irrelevant, a technical matter outside of my scope of enquiry as to which to purchase having previously made it clear as to my existing power supplies.
My enquiry was high jacked by two DC ideologues one of which refuses to retract a bald misleading contention.
My initial enquiry was not of a technical nature but simply to establish what was best based on others experience as to TV use aboard.

The TV is powered by 19V DC.

If the 19V DC supply is derived from AC by way of a converter it does not make the TV an AC device.

If one follows your logic that the TV must be an AC device because its power originates from an AC supply you are still incorrect, because your AC supply originates from your boats DC system and is converted to AC by the inverter.

Perhaps, if ones home AC supply comes from a coal powered power station ones TV is powered by coal. I imagine some of must have nuclear powered toasters **

But, that's total nonsense, no matter where the power source originates from, the device is what it is, in this case it's a 19V DC device.

** Note the use of smileys to denote tongue in cheek comment.

 

[[185615]]

No, we won't retract that since it has been amply demonstrated that the TV set is a DC powered device with a DC supply.

Post #29
“THIS MODEL RUNS ON 19v FROM AN EXTERNAL

The three pin plug powers the DC adapter which supplies power to the device. The device is DC powered.

So it IS mains powered then. Too whatever internal arrangement is irrelevant from a lay purchasers viewpoint.

 

[dankilb]

As usual excellent advice offered from the forum members.

Agree - in between some guff about Currys vs PBO (the latter won!) - an informative thread.

For instance, I’ve deduced that the LG 28” smart TV from the same current range also appears to be 19v (you can buy a replacement PSU, at least). Going up - the 32”, however, seems to have an internal transformer.

[p.s. when our refit is complete - at 41’ - we expect a large and diverse crew at times, thus the consideration for a larger screen for movies etc., plus to mirror other devices running ActiveCaptain and Navionics… we’re not committed telly watchers ourselves]

 

[PaulRainbow]

Post #29
“THIS MODEL RUNS ON 19v FROM AN EXTERNAL

So it IS mains powered then. Too whatever internal arrangement is irrelevant from a lay purchasers viewpoint.

No. It's 19V DC, which can be run from an AC supply with a suitable converter.

In exactly the same way as your mains toaster can be run from DC by using your inverter, it doesn't make the toaster DC, does it ?

 

[[185615]]

Interesting thread as I will be fitting a monitor on a bulkhead. It increases ease of installation and safety knowing that it is common to have a DC power option on these TV, Monitor devices. I assumed that DC would be a specialist product and 240v a standard, but it makes sense now why DC standard is built in.

As usual excellent advice offered from the forum members.

I found that to be true, great advice and the honesty to admit when occasionally wrong.
# 29 was as misleading as you can get, but a refusal to retract or clarify, others depend on childish faces to indicate their meaning, I know my grandchildren do but is adult vocabulary now restricted that we need images to make ourselves understood.

 

[Moodysailor]

Agree - in between some guff about Currys vs PBO (the latter won!) - an informative thread.

For instance, I’ve deduced that the LG 28” smart TV from the same current range also appears to be 19v (you can buy a replacement PSU, at least). Going up - the 32”, however, seems to have an internal transformer.

If you can get some good pictures of the rear of the set, you can usually tell - direct AC connection will have the 3 pin IEC plug, something like this:


Whereas a DC direct connection will have some form of 2 pin connector, usually a female version of one of these:

 

[lustyd]

No Paul, it's coal powered, you were right before that we need to trace all the way back. I guess we could argue it's powered by dinosaurs if being pedantic too That said, if the dinosaurs were French then the power is converted to DC to cross the channel to avoid harminisation issues so it's tree/dinosaur/coal/AC/DC/AC/DC powered

 

[Moodysailor]

Agree - in between some guff about Currys vs PBO (the latter won!) - an informative thread.

For instance, I’ve deduced that the LG 28” smart TV from the same current range also appears to be 19v (you can buy a replacement PSU, at least). Going up - the 32”, however, seems to have an internal transformer.

[p.s. when our refit is complete - at 41’ - we expect a large and diverse crew at times, thus the consideration for a larger screen for movies etc., plus to mirror other devices running ActiveCaptain and Navionics… we’re not committed telly watchers ourselves]

A quick look on Currys confirms the 28" LG TV does indeed take a direct DC connection. Note the power connector top left, you can just see it says DC above it:

 

[[185615]]

Agree - in between some guff about Currys vs PBO (the latter won!) - an informative thread.

For instance, I’ve deduced that the LG 28” smart TV from the same current range also appears to be 19v (you can buy a replacement PSU, at least). Going up - the 32”, however, seems to have an internal transformer.

[p.s. when our refit is complete - at 41’ - we expect a large and diverse crew at times, thus the consideration for a larger screen for movies etc., plus to mirror other devices running ActiveCaptain and Navionics… we’re not committed telly watchers ourselves]

Curry’s were right, the set is mains powered, that is indisputable.
Post #29 was and remains entirely misleading in its contention that the set is NOT mains powered when it clearly IS. Sorry but PBO failed big time on this issue.
You can of course stand facts on their heads to suit your point of view.

 

[lustyd]

Whereas a DC direct connection will have some form of 2 pin connector, usually a female version of one of these:

I can confirm that the Honour power supply (one of two that might be in the box) model ADS-45FSN-19 19040GPG has a 6.5mm * 4.4mm positive tip connector and supplies up to 2.1A at 19V DC

Genuine 19V 2.1A 40W LG ADS-45SN-19-3 AC Adapter Charger + Power Cord

 

[lustyd]

Curry’s were right, the set is mains powered, that is indisputable.
Post #29 was and remains entirely misleading in its contention that the set is NOT mains powered when it clearly IS. Sorry but PBO failed big time on this issue.
You can of course stand facts on their heads to suit your point of view.

Please show us where you connect the AC to the TV. I suggest you don't actually try this as it would be dangerous. Unless you're suggesting that there's an internal DC to AC converter within the set?

 

[Moodysailor]

I can confirm that the Honour power supply (one of two that might be in the box) model ADS-45FSN-19 19040GPG has a 6.5mm * 4.4mm positive tip connector and supplies up to 2.1A at 19V DC

Genuine 19V 2.1A 40W LG ADS-45SN-19-3 AC Adapter Charger + Power Cord

It's only interesting to me, but that's M8 in my little box of tips that came with my adaptor, and the same as my laptop uses.

I might actually buy one of those TV's as I know I can use the same power supply

 

[mrangry]

Having decided not to have a tv on board this thread has now got me looking at buying one. Having looked at Richer sounds website (they price match) and are great to deal with I see that most are "F" energy rated. I would have assumed that modern sets would be energy efficient....this search could see me browsing tellies for the next few days.

 

[lustyd]

Having decided not to have a tv on board this thread has now got me looking at buying one.

Clearly the OP is an extremely clever and time rich sales person generating business

 

[Moodysailor]

Having decided not to have a tv on board this thread has now got me looking at buying one. Having looked at Richer sounds website (they price match) and are great to deal with I see that most are "F" energy rated. I would have assumed that modern sets would be energy efficient....this search could see me browsing tellies for the next few days.

The energy ratings have recently been revised due to a couple of reasons. 1 - because consumer electronics are now far more efficient and almost all get an A or higher on old ratings and 2 - to reflect the need to reduce our environmental impact.

As a result, almost nothing you can buy nowadays gets an A. The idea is that the new ratings leave scope at the top for development and improvement. Read into that what you will, but don't let it put you off buying a TV.......

 

[[185615]]

A quick look on Currys confirms the 28" LG TV does indeed take a direct DC connection. Note the power connector top left, you can just see it says DC above it:

View attachment 122142

Only a techi would do such a search when purchasing?
Normal people just want to know the basics but the ‘experts’ (an ex is a has been a spert is a drip under pressure) highjack a thread of straight forward enquiry and impose their own DC ideology, none of which had the slightest bearing on my choice of set, in fact it became an hindrance to selection.

 

[Moodysailor]

Only a techi would do such a search when purchasing?
Normal people just want to know the basics but the ‘experts’ (an ex is a has been a alert is a drip under pressure) highjack a thread of straight forward enquiry and impose their own DC ideology, none of which had the slightest bearing on my choice of set, in fact it became an hindrance to selection.

I know, I'm not throwing mud but I am an engineer and self-confessed geek. I like finding out how things work.

What is it they say - there are two types of people, those who like working on their boats, and those who like using them. We have a 50yr old plastic classic, which tells you a lot about which one I am

 

[dankilb]

A quick look on Currys confirms the 28" LG TV does indeed take a direct DC connection. Note the power connector top left, you can just see it says DC above it:

View attachment 122142

Quite impressive, that, on reflection… a fully-functioning 28” smart HD LED TV/monitor, widely (and cheaply) available and from a decent manufacturer, that’ll run without an inverter.

I can remember running my dad struggling to get an incredibly expensive and useless inverter to run CRT desktop monitors (for work) and TV and laserdisc (? to entertain us when we were kids) while he was a liveaboard in Hong Kong!

 

[lustyd]

I can remember running my dad struggling to get an incredibly expensive and useless inverter to run CRT desktop monitors (for work) and TV and laserdisc (? to entertain us when we were kids) while he was a liveaboard in Hong Kong!

I think the move from CRT to LCD was when the change happened and most sets have been internally DC ever since. As said above even the large ones run on DC just that the conversion is done internally. Looking at those supply components it would be trivial for someone to replace it with a DC/DC module as it's two wires in and two wires out and completely self contained. I wouldn't be surprised if there were drop in DC/DC replacements available.