RFI from LCD screen??
Printed From: Graham Slee Hifi System Components
Category: And the rest
Forum Name: Audio System Set-Up
Forum Description: Discussions about getting the best from your system (Digital section now moved)
URL: https://www.hifisystemcomponents.com/forum/forum_posts.asp?TID=175
Printed Date: 27 Mar 2026 at 2:11am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: RFI from LCD screen??
Posted By: Cyreg
Subject: RFI from LCD screen??
Date Posted: 12 Jun 2008 at 3:27pm
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At this moment I have no disturbing actors, AFAIK, nearby my LP listeningenvironment.
Except a standard TV when switched ON; but no dimmers, PC or DVD player.
Also do use PSU1 powered Reflex and Solo.
I think my CDplayer, Marantz CD5001, has a lineair PS. I am thinking of buying a new LCD TV.
 Some Q's occur to me:
- Does this LCD technic use digital/other signals in RF frequencies range?
- Are their powersupplies possibly switched ones?
So generally speaking could I get into trouble (RFI
 ) playing my analogue rig? Thanx for reactions Han
------------- TecnoDec/RB250/MP110>GramAmp2C/PSU1; Cyrus CD8SE; > Exposure 3010S2D INT > Harbeth C7ES-3 '35th Anniversary' cabling: IC 2x DNM V3; LScable Exposure DMF-two; Furu TP60 + MWaY and BlackCable pc's |
Replies:
Posted By: ServerBaboon
Date Posted: 14 Jun 2008 at 12:46pm
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I think these days you just have to accept that everything puts out RFI from light bulbs to TVs you just can't escape it. In the uk someone setup an EMI testing facility deep underground in an old mine as the only way they could get a quiet background for standards testing |
Posted By: Cyreg
Date Posted: 14 Jun 2008 at 4:07pm
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Oh yes SB, you're so right.
But I also know that, at least airborne RFI, will be weaker and less enoying with larger distances.
Probably also the same with 230V powerlines, but less sure about that.
Signallines IN/OUT, if digital, can probably cause some RFI, if not shielded very well.
So I can choose analog signal IN there, I suppose
 Digital signal going from LCD TV to other appliances should be shieded well, I guess.
Well, maybe I'll just have to try what happens if I install the LCD TV on the same spot.
Roughening up of the audiosound by RFI should possibly be very well noticed by me?
And if not (much) than I would be OK??
I don't know
 ; never heard anyone complaining, but... Han------------- TecnoDec/RB250/MP110>GramAmp2C/PSU1; Cyrus CD8SE; > Exposure 3010S2D INT > Harbeth C7ES-3 '35th Anniversary' cabling: IC 2x DNM V3; LScable Exposure DMF-two; Furu TP60 + MWaY and BlackCable pc's |
Posted By: Graham Slee
Date Posted: 16 Jun 2008 at 6:09am
You'd have to because the EU won't let you use Lead anymore! ------------- That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps |
ServerBaboon wrote: