Power supply, Input, output wrt TVs

Donivlapog

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I was hoping all power and input output issues addressed here.

My 1kva Microtek UPS have started giving noise. It is a "Microtek legend 1000" model. The seller does not know why and he had already suggested to change my 600 va to 1 kva and still this issue. 75" tv is a power consuming monster it looks like. So voltage stabilizer is a must. Any inputs pls.
 

OM_2K19

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My 55" tv consumes around 200 va alone, so I am assuming a 75" tv will consume around 400 va. That said, a 600 va UPS should do the trick if only tv is hooked to it. An UPS generally makes noise if it is producing a square wave in place of a sine wave. If possible get an APC pure sine wave ups, 600 va should be fine for tv alone.
 

pRosentR

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My 55" tv consumes around 200 va alone, so I am assuming a 75" tv will consume around 400 va. That said, a 600 va UPS should do the trick if only tv is hooked to it. An UPS generally makes noise if it is producing a square wave in place of a sine wave. If possible get an APC pure sine wave ups, 600 va should be fine for tv alone.
APC Back-ups are 'stepped aproximation to sine wave' type. They are not pure sine wave ups. Is my understanding correct? Could you please point me to a pure sine wave ups model from any brand?
 

Donivlapog

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Now I have to get the inverter line fixed to the plug i think as this UPS gives a beep sound noise. How annoying it is that upto 65" TV it was silent. My Sony 9300 D had a power bar before going through to the switch board. Was that the reason for the UPS not to squeak? Should I look one for 75" TV?
 

OM_2K19

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APC Back-ups are 'stepped aproximation to sine wave' type. They are not pure sine wave ups. Is my understanding correct? Could you please point me to a pure sine wave ups model from any brand?
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bakisab

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Hi folks,

I recently bought a Toshiba u79 65 inch tv (consumption 200 watts) along with a Samsung soundbar+woofer (70 watts).

I want to buy a ups for just this setup. Need backup of about 10 mins (till the apartment generator switches on)

Looking for compact option also since its for the living room.

I was thinking of going with basic apc 1000VA ups model (abt 6k). But the customer care folks on their site were suggesting a pure sinewave ups (SUA1000I-IND model costs around 25k).

I wanted to know if we really need to go for pure sinewave? Does the normal (non sinewave) ups damage modern 4k TVs and soundbar ?
 

Donivlapog

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The thing with UPS is that, it does not regulate high voltage that much. So go for a higher ampere reading voltage stabilizer that can take a load of the APC ups plus your TV plus soundbar. The calculation according to Ohms law should be around 6 amperes plus stabilizer atleast. Entry level Ups will squeak if it sees much voltage fluctuations and therefore consult an electrician and have them both fixed.
 

bakisab

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The thing with UPS is that, it does not regulate high voltage that much. So go for a higher ampere reading voltage stabilizer that can take a load of the APC ups plus your TV plus soundbar. The calculation according to Ohms law should be around 6 amperes plus stabilizer atleast. Entry level Ups will squeak if it sees much voltage fluctuations and therefore consult an electrician and have them both fixed.
Thanks for the suggestion. I am not well versed with the calculation :).

But regarding UPS, do you know if the TV/soundbar needs a pure sinewave UPS?
 

Donivlapog

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Pure sine wave is recommended but high voltage is the mother bummer of all problems. So Voltage stabilizer is more of an issue or the lack of it thereof.
 
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