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RFI from LCD screen??
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Cyreg View Drop Down
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Joined: 15 Jan 2008
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    Posted: 12 Jun 2008 at 3:27pm
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. Smile
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 Cry) playing my analogue rig? 
 
Thanx for reactions Han
 


Edited by Cyreg - 12 Jun 2008 at 3:30pm
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
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ServerBaboon View Drop Down
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Points: 970 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ServerBaboon Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jun 2008 at 12:46pm

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
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Cyreg View Drop Down
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Points: 316 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Cyreg Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jun 2008 at 4:07pm
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 Wink
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 Confused; 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
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Graham Slee View Drop Down
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Points: 16314 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jun 2008 at 6:09am
Originally posted by ServerBaboon ServerBaboon wrote:

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



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
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