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Subject Topic: 12v/230v TV
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PersonBatesy81
15/4/2017 at 9:35am
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I have a mikomi Tv which runs off 230v and works fine,
Until I try it on 12v I have a 10amp socket 2 pin 12v, which I have bought a plug for it then converts to 4pin plug which should feed the TV, the Tv leds doesn't light up showing it doesn't have any power, have I missed something?


Persontango55
15/4/2017 at 10:05am
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I know it sounds daft but have you got a leisure battery connected up and fully charged?
A Television consumes quite a bit of power so there needs to be adequate power in the battery.
There may be a secondary switch as sometimes the 12 volt socket may be connected up to the auxiliary or main light switch etc.


PersonGrampian91
15/4/2017 at 11:01pm
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Not connected the leads backwards?

Some plugs are centre positive and some plugs are centre negative.


Personnavver
16/4/2017 at 8:39pm
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I'm confused.

You have a 2 pin 12 volt socket which you've bought a plug to go in it.

You have a 4 pin plug to feed the TV. Is it a 2pin to 4 pin adaptor. If so, why does the TV need 4 pins?


PersonBatesy81
18/4/2017 at 2:20pm
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Yes I have 12v socket which I have plugged a 2 pin 12v plug in, on the other end there's a 4 pin plug which plugs into Tv, but my Tv doesn't work on 12v but does on 230v


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PersonOpensauce
18/4/2017 at 3:53pm
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First think to check is that you have 12v going to your tv. For that you need a volt meter.


PersonGrampian91
18/4/2017 at 7:41pm
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What TV is it? Exact make/model?


PersonBatesy81
18/4/2017 at 8:56pm
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Mikomi 15LCD250


PersonG7ACU
19/4/2017 at 11:19pm
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Quote: Originally posted by Batesy81 on 18/4/2017
... 4 pin plug which plugs into Tv, but my Tv doesn't work on 12v but does on 230v

Just been trying to read the destructions online.
The TV obviously has some odd bespoke 4 pin connection for the supply. As you (presumably) have a working mains adapter to run the TV from 230v, I'd suggest you use a multimeter to compare the working output of this, (polarity, which pins etc.,) and check against the dedicated 12v cable you're trying to use. Some of these adapters aren't great and you may have either a duff connection between the two adapters, or the wrong output at the 4 pin fitting.
Interestingly too, the manual states the TV has a standard DC input connection, which confuses things a bit.
Copy of manual online here.

Post last edited on 19/04/2017 23:24:58

-------------
Paul

Every day's a school day!


Personfleck2
20/4/2017 at 4:58am
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In the manual above the power connection is a 2 pin DC plug (centre pin positive)



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