Digital Spy

Search Digital Spy
 

DS Forums

 
 
 

Help! TV is screeching!


Reply
Thread Tools Search this Thread
Old 02-11-2013, 17:53
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310

Hi

I have an old Panasonic TV linked up to Sky.

I was just watching a recorded program when this screeching noise started, can't hear the program now.

It's on all channels so not the recoding.

Do I just chuck the TV or can it be saved?

Anything really simple I can do (magic probably!) to get it working properly?

Thanks
NorfolkPoppy is offline   Reply With Quote
Please sign in or register to remove this advertisement.
Old 02-11-2013, 20:11
niall campbell
Forum Member
 
Join Date: May 2006
Location: now a townie in glasgow! help
Posts: 6,901
on Sky channel as well ??

tried switching power off at wall for 20 seconds ?
niall campbell is offline   Reply With Quote
Old 02-11-2013, 20:29
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
on Sky channel as well ??

tried switching power off at wall for 20 seconds ?
On all channels.

Yep, I'm female, that's my first course of action
NorfolkPoppy is offline   Reply With Quote
Old 02-11-2013, 21:19
niall campbell
Forum Member
 
Join Date: May 2006
Location: now a townie in glasgow! help
Posts: 6,901
Hmmmmmmmmmmm doesn't sound too good.

If its on all channels , not just sky; then it sounds bad.

what does it sound like on Freeview ?
niall campbell is offline   Reply With Quote
Old 02-11-2013, 21:42
chrisjr
Forum Member
 
Join Date: May 2004
Location: Reading
Posts: 20,371
If it is only on the Sky channels then it might be the Sky box not the telly.

So if it is still making a noise try putting the Sky box into stand-by and see if the noise stops. Turn the Sky box back on and see if it returns. Now switch to a Freeview channel on the TV's internal tuner but keep the Sky box turned on.

If you only get the noise when the Sky box is on and the TV is switched to the Sky input then chances are it's the Sky box and not the telly.
chrisjr is offline   Reply With Quote
Old 02-11-2013, 22:33
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
When I said all channels I meant all Sky channels as opposed to the Sky+ recordings.

I don't have Freeview and can't get a picture if I take Sky offline.
NorfolkPoppy is offline   Reply With Quote
Old 02-11-2013, 23:04
chrisjr
Forum Member
 
Join Date: May 2004
Location: Reading
Posts: 20,371
When I said all channels I meant all Sky channels as opposed to the Sky+ recordings.

I don't have Freeview and can't get a picture if I take Sky offline.
That doesn't really matter.

All you need do is turn off the Sky box while the noise is being made. If it stops then that indicates it might be the Sky box. Similarly if you switch to some other source on the TV, even a non-existent Freeview channel and the noise stops then that too can indicate the Sky box is the problem.

The point is, if it is a fault with the TV then chances are it will make the noise whether or not the Sky box is on or off and will also make the noise if you switch to watching something else, even if there is nothing on the source you switch to.

If however the noise only ever happens when the TV is switched to the Sky box input and the Sky box is turned on then you have to suspect the Sky box.

Ideally to confirm this you would need to plug the Sky box into another TV. If the same noise appears then it's the Sky box most likely.

Another thing to try is to swap the lead between Sky box and TV. It might be a dodgy cable but at least that is fairly easy to eliminate.
chrisjr is offline   Reply With Quote
Old 03-11-2013, 10:21
Nigel Goodwin
Forum Member
 
Join Date: Apr 2006
Location: North Derbyshire
Posts: 36,825
We don't even have the absolute minimum of information yet.

Does the sound come from the TV's speakers, or is it a mechanical noise from the back of the set?.

Can the OP alter the volume of the noise with the volume control, and does muting stop it?.
Nigel Goodwin is offline   Reply With Quote
Old 03-11-2013, 10:23
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
That doesn't really matter.

All you need do is turn off the Sky box while the noise is being made. If it stops then that indicates it might be the Sky box. Similarly if you switch to some other source on the TV, even a non-existent Freeview channel and the noise stops then that too can indicate the Sky box is the problem.

The point is, if it is a fault with the TV then chances are it will make the noise whether or not the Sky box is on or off and will also make the noise if you switch to watching something else, even if there is nothing on the source you switch to.

If however the noise only ever happens when the TV is switched to the Sky box input and the Sky box is turned on then you have to suspect the Sky box.

Ideally to confirm this you would need to plug the Sky box into another TV. If the same noise appears then it's the Sky box most likely.

Another thing to try is to swap the lead between Sky box and TV. It might be a dodgy cable but at least that is fairly easy to eliminate.
Thank you for taking the time to reply.

Have switched off Sky box and still makes noise.

Can't try it in another TV yet but will do.....I do think though it's the TV. It's an old Panasonic, weighty number, and it may well have had it's day.
NorfolkPoppy is offline   Reply With Quote
Old 03-11-2013, 11:45
gds1972
Forum Member
 
Join Date: Feb 2007
Posts: 2,898
Thank you for taking the time to reply.

Have switched off Sky box and still makes noise.

Can't try it in another TV yet but will do.....I do think though it's the TV. It's an old Panasonic, weighty number, and it may well have had it's day.
When you say old weighty number do you mean it is an old CRT TV and not one of the newer slim LCD,LED, Plasma TV's.
gds1972 is offline   Reply With Quote
Old 03-11-2013, 12:03
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
When you say old weighty number do you mean it is an old CRT TV and not one of the newer slim LCD,LED, Plasma TV's.
It definitely ISN'T a newer slim model!
NorfolkPoppy is offline   Reply With Quote
Old 03-11-2013, 12:14
Peter the Great
Forum Member
 
Join Date: Jan 2006
Posts: 5,265
If it is a CRT TV it is likely to be the flyback transformer. I have an old portable CRT in the bedroom that whistles slightly sometimes. Giving it a gentle wack on the top of the TV often shuts it up.
Peter the Great is offline   Reply With Quote
Old 03-11-2013, 12:34
chrisjr
Forum Member
 
Join Date: May 2004
Location: Reading
Posts: 20,371
Thank you for taking the time to reply.

Have switched off Sky box and still makes noise.

Can't try it in another TV yet but will do.....I do think though it's the TV. It's an old Panasonic, weighty number, and it may well have had it's day.
If turning the Sky box off does not stop the noise and the noise happens whatever you have the TV selected to then it ain't the Sky box. So no point trying the Sky box on another telly
chrisjr is offline   Reply With Quote
Old 03-11-2013, 12:36
chrisjr
Forum Member
 
Join Date: May 2004
Location: Reading
Posts: 20,371
It definitely ISN'T a newer slim model!
Model number would help.
chrisjr is offline   Reply With Quote
Old 03-11-2013, 12:43
spiney2
Forum Member
 
Join Date: Jul 2010
Posts: 16,215
any tv would screech if forced to receive pick tv. otherwise .....

if an old crt type tv then the line output transformer. very few places now replace these so probably a new tv ......

if flat screen then more difficult to say. the smps power supplies in such equipment can start making noises but far more likely to be buzzing or humming.

follow suggestions in above posts. determine which gadget it is by switching on only one at a time. check noise is from inside the device not through speakers .....
spiney2 is offline   Reply With Quote
Old 03-11-2013, 14:18
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
If it is a CRT TV it is likely to be the flyback transformer. I have an old portable CRT in the bedroom that whistles slightly sometimes. Giving it a gentle wack on the top of the TV often shuts it up.
And that was my son's first action

Didn't work
NorfolkPoppy is offline   Reply With Quote
Old 03-11-2013, 14:47
chrisjr
Forum Member
 
Join Date: May 2004
Location: Reading
Posts: 20,371
And that was my son's first action

Didn't work
You have to serve a 20 year apprenticeship to learn the exact position and force to thump a telly to make it work.
chrisjr is offline   Reply With Quote
Old 03-11-2013, 15:56
Nigel Goodwin
Forum Member
 
Join Date: Apr 2006
Location: North Derbyshire
Posts: 36,825
You have to serve a 20 year apprenticeship to learn the exact position and force to thump a telly to make it work.
Well, 17 posts so far, and still not the basic information if it's coming out of the speakers or not?.

So knowing where to thump might not be relevant at all anyway
Nigel Goodwin is offline   Reply With Quote
Old 03-11-2013, 18:32
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
Well, 17 posts so far, and still not the basic information if it's coming out of the speakers or not?.

So knowing where to thump might not be relevant at all anyway
Relevant? What basic information?

I've said it's not Sky box. Have now fixed up teeny tiny TV to Sky and NO SCREECHING! Yay!
NorfolkPoppy is offline   Reply With Quote
Old 03-11-2013, 19:24
Nigel Goodwin
Forum Member
 
Join Date: Apr 2006
Location: North Derbyshire
Posts: 36,825
Relevant? What basic information?
If it's screeching out of the speakers or not, and assuming it was, does the volume and mute affect it.
Nigel Goodwin is offline   Reply With Quote
Old 03-11-2013, 20:25
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
If it's screeching out of the speakers or not, and assuming it was, does the volume and mute affect it.
Out of speakers. Volume and mute affect it. Mute stops it.
NorfolkPoppy is offline   Reply With Quote
Old 03-11-2013, 20:33
kmusgrave
Forum Member
 
Join Date: Dec 2001
Posts: 1,733
but what sort of telly is it? CRT? Plasma? etc.
kmusgrave is offline   Reply With Quote
Old 03-11-2013, 22:13
NorfolkPoppy
Forum Member
 
Join Date: May 2007
Posts: 3,310
but what sort of telly is it? CRT? Plasma? etc.
I don't know what CRT is.

I've said, with my limited knowledge of TVs, it's old, very deep, and that's it.
It's Panasonic and has better picture definition thatn the modern slim screens - which is why I've kept it.
NorfolkPoppy is offline   Reply With Quote
Old 03-11-2013, 22:40
coachtrip_fan99
Forum Member
 
Join Date: Jun 2009
Posts: 1,871
Out of speakers. Volume and mute affect it. Mute stops it.
plug some PC speakers into the headphone socket on your TV
coachtrip_fan99 is offline   Reply With Quote
Old 04-11-2013, 01:28
evil c
Forum Member
 
Join Date: Dec 2010
Location: Wirral Peninsula
Posts: 2,642
CRT = Cathode Ray Tube and I don't want to appear rude, but you could have Googled CRT and found out easily what it meant. People can't help you properly with a paucity of information and the best way you can help is to divulge the TV model number.
evil c is offline   Reply With Quote
 
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search

 
Forum Jump


All times are GMT +1. The time now is 06:47.