AV and Multimedia Related Thread, 50Hz Block in Technical; got given a TV, its a CRT NEC. But when I tried to tune the Tv init finds the channels ...
4th November 2009, 12:36 PM #1
got given a TV, its a CRT NEC. But when I tried to tune the Tv init finds the channels alright, and the picture will flick up while its scanning, but when you go to a channel it will only play the audio, and im getting a blue screen that says "50HZ BLOCK"
Anyone come accross this before with a TV? I dunno whether they use PAL or NTSC over here, but seeing as though the TV is from here, I would have thought it would match.
4th November 2009, 12:43 PM #2
Thanks to ozzy from:
RabbieBurns (4th November 2009)
6th November 2009, 10:17 AM #3
Just tried a digibox in the AV inputs and only get the audio on these too, and the 50Hz Block blue screen error.
Whats going on??
6th November 2009, 02:17 PM #4
I recon it's goosed matey, can you get to the tv's menu when you have the blue error screen on? is there an option to change the format from PAL to NTSC? just thinking that the telly may be in NTSC mode or something
8th November 2009, 06:37 AM #5
can get to the menus no problem. been through the 2 ntsc and pal options and it didnt work. Tried the digibox in 60Hz output mode too and didnt get anything.
Im not sure whats up. I can see the picture of the channels when it is scanning, it will flash up for a couple of seconds.. but when its done, and i go to the channels, i get audio only and the 50hz block error message.
18th November 2009, 11:11 AM #6
ended up just chucking it out and taking another one.. this one works fine..
googling "50hz block" now brings you straight to this thread ;p
18th November 2009, 11:19 AM #7
Well for everyone's reference NTSC is 60Hz with 525 horizontal lines and PAL/SECAM is 50Hz with 625 horizontal lines. This is why with older games consoles and films in Europe we have black borders primarily due to the additional 100 lines.
It's less of a problem with HD however which is a universal standard. As to why you're experiencing this problem I'm not 100% sure. It could possibly be a frequency problem.
18th November 2009, 12:26 PM #8
The school were chucking out 10 of these TVs all from working installations in classrooms.. I just took another one today, exact same make and model, and its working fine.. Dunno what the issue was.. bizarre.. Anyway, now got working TV in my room.. just need to sort something better than the coathanger for an arial now ;p
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