Hi, my husband wall mounted our sony bravia and in doing so had to cut the power lead to enable him to chase it into the wall. He added an inline connector to the main power cable but when he went to turn it on i think it blew the fuse in the TV, is that easy to fix or will it have to be done by a proffesional? Also what sort of conector should we use to ensure it doesnt happen again? Any advice would be appreciated.
Your IP indicates you are posting from the UK.
This sadly sounds like your husband had some issues determining differences between wiring colours and their function, and ended up connecting things the wrong way round to damage something. This can happen to anyone.
It's probably not going to be a fuse that has blown - you'd have to get a tech to look at it. That disheartening noise was something else ;-(
-- Adrian C
It's not immediately clear how miswiring the power cord could damage the set. There is no "polarity", per se, to AC, nor is there any way one might connect the wires to increase the voltage (that I'm aware of).
:Hi, my husband wall mounted our sony bravia and in doing so had to cut :the power lead to enable him to chase it into the wall. He added an :inline connector to the main power cable but when he went to turn it :on i think it blew the fuse in the TV, is that easy to fix or will it :have to be done by a proffesional? Also what sort of conector should :we use to ensure it doesnt happen again? :Any advice would be appreciated.
This highlights the issue of a non qualified person taking the "cheap" way out and trying to do a wiring job about which he obviously knows absolutely nothing. What he did was highly illegal. You never "chase an appliance power lead into a wall and connect it via an in-line joiner". The right way is to install an additional power cable run from the wiring in the ceiling space (or add a new circuit from the distribution box if required), to a general purpose outlet on the wall behind where the TV is to be mounted. The power cord from the TV set is never cut if it is too long, but simply coiled up and tied with a nylon cable tie or similar. You are going to have a problem trying to explain to a repair tech just why you cut the power cord in the first place.
"How do you stop it happening again?"
Answer: Don't interfere in any way with the appliance, as supplied by the manufacturer, if you want to preserve your warranty.
Was there any sound when it was switched on, pop or bang? I don't know if they do have an internal fuse these days. Even if there is it shouldn't blow even if it is wired wrongly. You say 'inline connector', what type of inline connector and is it fused?
How does the tv connect up to the household mains, is it through an extension cable that plugs into a normal socket? It must have a low rated fuse in there somewhere.
Do you have power at the 'inline connector'? How is the cable fixed into the wall? Could the cable have been damaged by the fixings?
The problem with chasing appliance leads into the wall is that you have to plaster again when you replace them. Much better to put a socket behind the unit as Ross says and plug it in there.
-- Regards - Rodney Pont The from address exists but is mostly dumped, please send any emails to the address below e-mail ngpsm4 (at) infohitsystems (dot) ltd (dot) uk
There is no "polarity", per se, to AC,
There is 'polarity' if it has an earth wire and the op connected mains live to the sets ground.
Do we know which country the OP is in?
Ron
My point was that it's not like reversing + and -. Why would reversing hot and neutral damage anything?
It wouldn,t, but not everyone is in the USA and some sets in Europe are earthed (grounded)
If live was connected to the sets ground, then any gounded metalwork in the set would be live, although it would almost certainly double insulated. It would probably at least blow the sets mains fuse, or more likely the psu
IMO
Ron
In the USA it shouldn't do any damage or result in a safety hazard with modern equipment. And unless you checked the wiring of the outlet, probably wouldn't even know.
If he connected Hot to Earth Ground, it would trip a breaker or GFCI, or blow a fuse.
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really? if it's his own house, how so?
That`s easily done, even for those in the know.
Ron(UK)
Everyone responding seems to assume that the power cord is AC mains; some sets (such as my Polaroid LCD2000) use a power brick and a DC cable to the set; the O.P. may have miswired that cable after cutting it if the set is DC powered.
Michael
The OP posted through Google Groups with an IP address of
90.204.168.58 which resolves to the UK, but does it matter? The TV has to meet safety standards which will not let a TV have a hot chassis. No current production TV is going to have a hot chassis unless some moron wires the line directly to the safety ground. That would trip a breaker, or more likely in the UK, blow a fuse in their ring circuit.Learn to do a Whois instead of asking where someone is posting from. Look at the full header for the IP address. I use the free tools on http://www,dnsstuff.com. Be warned that if you try to abuse them, your IP address will be blocked.
-- http://improve-usenet.org/index.html Goggle Groups, and Web TV users must request to be white listed, or I will not see your messages. If you have broadband, your ISP may have a NNTP news server included in your account: http://www.usenettools.net/ISP.htm
What's inside the set shouldn't care. It should blow the fuse or pop the breaker or GFCI upstream.
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:On 17 mar, 02:42, Ross Herbert wrote: : :> What he did was highly illegal. : :really? if it's his own house, how so?
Most civilised countries have legally enforcible laws requiring that electrical wiring be performed according to specified standards, and usually, alterations must be carried out by a qualified electrician - even in your own house.
Since the OP is in the UK, this is particularly so.
I don't know of any Sony Bravia LCD TV which is powered by anything but ac mains power. My Bravia certainly is.
In the Uk it is not 'highly illegal' to modify a mains lead on a Tv set! stupid in this case, yes, but not illegal!
UK by the looks of it. I don't know of any Sony TV sets which have a mains earth connection, and even if they did, wrong connection is unlikely to blow any internal fuses or do other internal damage. As far as I know, Sonys use a 'conventional' SMPS, and these care not a jot which way round the mains is connected, or even if it has a 'live' and 'neutral' at all, as in they work just the same when they are on a fully floating transformer safety-isolated bench supply.
The failure of the set to work now is, in my opinion, either as a result of the connector being wrongly wired mechanically, resulting in a blown plugtop fuse (we have small cartridge fuses in the power plug in the UK), or just good old Murphy's Law coincidental bad luck. Bear in mind that if the set has run for months never going off any further than into standby, then coming back on from a full power off condition, is the most common time for a switcher to fail ...
Arfa
That's a very good point. Sometimes, the marking of the two wires in the figure 8 DC cable, is not especially clear, and may not be at all, to someone who is not experienced in knowing what to look for. That being the case, he may well have reconnected the wires backwards. Hopefully, the set wouldn't care and just sit there inert, but it may also employ a shunt protection diode, which may fail itself, or knock out a fuse. The brick would of course be a switcher itself, so a reverse connection to the set on its output, may just result in the PSU going into an excess current shutdown condition.
Arfa
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