Help. Problem with power cord on new LCD.

Forums › Home Theatre (including HTPC and EPG Collector) › Help. Problem with power cord on new LCD.

Tankguy

20 posts

Geek

#31598 23-Mar-2009 20:02

We just purchased a new 37" HD Panasonic LCD for the bedroom. I was just about to congratulate myself on successfully mounting the TV on the wall and pulling all necessary cables through the wall when i went to plug the TV into the power. The plug on the TV sat too proud of the socket which prevented the TV from sitting flush against the wall. Bugger.

Off I went and purchased a low profile side entry plug. Problem solved I thought. Well nothing is that easy. After cutting off the factory fitted plug, I find I cannot connect the new plug due to the proximty of an attachment on the power cord. My guess is it is some sort of filter but it is only a guess....Can anyone advise what this attachment is? I've seen similar attachments on other cables and power cords.

My question is whether this attachement is necessary or not? Can I cut it off and attach my low profile plug or do I need to splice some new wire onto the cord so that the plug clears the attachment?

I hadn't even considered this until I had problems installing the plug but I'm guessing I may have voided my warranty by removing the factory plug? Can anyone confirm this.

Thanks for any advice.

Peter

Jaxson

8041 posts

Uber Geek

Trusted

#202976 24-Mar-2009 09:44

The lump in the power cord is a RF choke, which is basically a magnet wrapped around the power cable, only yours is built in. You can get clip on ones that will do a similar job. They are there to cut done on radio frequency emissions which can cause interference to signals. Often they are there to ensure a device meets a certain standard with regards to how much noise it emits.

Others on this forum will know whether it is there to reduce noise going into your tv, or the other way around, to prevent electrical noise from the tv radiating out to other appliances in the area. I think it's to stop the noise going out from the TV, but can't be 100% sure. Either way you probably don't technically need it to work properly, but others will confirm this.

If you don't need it you could cut it off and put on your new angled plug, or you could just buy a premade short lead with angled plug.

Tankguy

20 posts

Geek

#203175 25-Mar-2009 07:43

Thanks Jaxson.

So is anyone able to confirm whether the RF choke is a must have or nice to have? Any views on whether I voided the warranty by removing the factory plug?

Peter