50Hz-60Hz on an HDTV in Europe

tinpanalley

Golden Member
Jul 13, 2011
1,496
22
81
I've been trying to figure this out and I think I need advice from a clear head because I've spun myself into a confused mess about this...
I've got a 60Hz television plugged into a Europe socket (yes, the power is converted safely already through a step-down transformer). I've turned it on already and the menu for the tv looks fine. Shouldn't I have seen it looking weird because the wall socket can only supply 50Hz? Or am I understanding frequency wrong?
Thanks.
 

tinpanalley

Golden Member
Jul 13, 2011
1,496
22
81
I'm not sure why the screen would matter, but it's a CRT-HD. It has component and HDMI inputs.
 

ND40oz

Golden Member
Jul 31, 2004
1,264
0
86
CRT can have some issues both on the power side and on the display side. I'd be surprised if it can display a 50hz TV signal, have you tried it with a Sky box yet? I couldn't get my DLP or RP LCD to accept a 50hz video signal, normal LCDs had no issues though.
 

tinpanalley

Golden Member
Jul 13, 2011
1,496
22
81
Well, here's the thing, I don't want it to display a TV signal. I just want it to display my US gaming consoles and media players. For TV, I have another solution to get the signal from my SFR box and I'll hardly ever use it but it made my phone, internet and mobile cheaper to take it.

So, in short, it will basically only be a display screen for similar devices.
 

lamedude

Golden Member
Jan 14, 2011
1,214
19
81
I'd hope they have fixed that refresh rate has to be equal to power frequency limitation sometime during the past 70 years.
 

tinpanalley

Golden Member
Jul 13, 2011
1,496
22
81
Well, I'm not sure thats why I'm asking. The TV does say 120-60 on the back. But it didnt seem affected when I plugged it in. I'm not asking it for a signal, devices will be HDMI ir component and TV I'm not concerned about. Using my PC monitor for the rare occurences where I need it.
Any thoughts on why it worked then?
 

ND40oz

Golden Member
Jul 31, 2004
1,264
0
86
I had no issues feeding a 60 hz display with a US spec xbox 360 or PS3 while plugged into a step down transformer, it's only when I tried to feed it a 50 hz video signal that it didn't work. Ended up just using an LCD for those sources. LG and Westinghouse are the brands I've had good luck with working anywhere, Sony and Samsung seem to purposely make it difficult so that you can't purchase a TV in another market for cheaper.
 

tinpanalley

Golden Member
Jul 13, 2011
1,496
22
81
I just assumed for some reason that a 60Hz tv that is HD but CRT nonetheless would see some kind of distortion or something getting a slower refresh rate but to my surprise it seems fine. I dont get it. Why is this working? Anyway, If the simple system menu looks fine then regular 60Hz signals should be ok too.
Can anyone explain this Hz of power vs Hz (PAL-NTSC) concept so I can get my head around it?
 

JoeBleed

Golden Member
Jun 27, 2000
1,408
30
91
the 50-60 Hz for the power input is the frequency of the Alternating Current (AC) from your wall outlet. This is how many times it alternates per second. This should have no effect on your screen refresh rate of 60, 120, or even 240 Hz that you see marketed. Also, the converter/transformer you're using should be changing the frequency so it is the proper 60 Hz for 110-120 Volt AC.

The Hz for the display is how many times the display can update and make changes to the display. Roughly. I've read the measurement are taken slightly different depending on the manufacture or tester. or this may be for the millisecond ratting for pixel change.

Make sense?
 

ND40oz

Golden Member
Jul 31, 2004
1,264
0
86
Step-down transformers don't change the frequency, they just change the voltage, you're going from 220/50hz to 110/50hz. You'd need a frequency converter to go from 50 to 60 hz and they aren't nearly as cheap as a step-down transformer.
 

tinpanalley

Golden Member
Jul 13, 2011
1,496
22
81
Ok. But it's safe to assume that 50Hz won't matter in my case because there isnt a motor or anything that cilould be affected by less frequency. Correct?
Is there anything display related that could be adversely affected by running my TV through the transformer?
 

ND40oz

Golden Member
Jul 31, 2004
1,264
0
86
You should be fine with the TV, like you said, you just need to be concerned with things with a motor, like your mixer or vacuum cleaner.
 

tinpanalley

Golden Member
Jul 13, 2011
1,496
22
81
I've looked a little closer at the display and noticed some slight, almost undetectable, bleeding of red along lines and details on the screen. Not snudges, just the faintest hint of red outside boxes, letters, etc. What causes this? Is this one of those, "your screen's about to go" things or should I do a reset to the picture settings in the factory menu (which I happen to know how to access)?