Entertainment Center: TVs, Stereos, VCRs and DVDs - High pitched TV
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weekendwarrior0
11-25-03, 09:22 PM
I bought a Daewoo tv 6 months ago. about half the time it is on it has a high pitched ringing sound that is making me go crazy. It is too late to bring it back to Target, I tried. I tried a power strip to plug it into, I tried to switch the plug other ways, I even was hitting it for a while and that worked, but not anymore? If I cannot fix it I am going to smash it!!!! Is there anything I can do???
kuhurdler
11-26-03, 10:57 AM
if hitting it fixes it for a time, it is most likely a ferrite coil inside the TV that is vibrating. They are black washer like things that a wire loops through and around and through again. Open it up and turn it on. take a non-conducting poking stick and poke around at them while it is making the noise until you touch one that makes it stop.
If you can open it up and find the offending piece, you can glue it down with some silicon glue. However, If it is inside the large transformer, it would be pricey to replace.
DO NOT TOUCH ANY METAL PARTS WITH YOUR FINGERS OR METAL TOOLS WHILE THE TV IS PLUGGED IN.
If you can open it up and find the offending piece, you can glue it down with some silicon glue. However, If it is inside the large transformer, it would be pricey to replace.
DO NOT TOUCH ANY METAL PARTS WITH YOUR FINGERS OR METAL TOOLS WHILE THE TV IS PLUGGED IN.
hotarc
12-05-03, 10:19 PM
Originally posted by weekendwarrior0
...I tried a power strip to plug it into, I tried to switch the plug other ways, I even was hitting it for a while and that worked, but not anymore? If I cannot fix it I am going to smash it!!!! Is there anything I can do???
Rule #1, hitting tv's to make them work is not a real good idea. Eventually you will probably jar something else loose and then it wont work at all.
Since it is a Daewoo, I recommend that you just smash it and go buy a Sony!;)
...I tried a power strip to plug it into, I tried to switch the plug other ways, I even was hitting it for a while and that worked, but not anymore? If I cannot fix it I am going to smash it!!!! Is there anything I can do???
Rule #1, hitting tv's to make them work is not a real good idea. Eventually you will probably jar something else loose and then it wont work at all.
Since it is a Daewoo, I recommend that you just smash it and go buy a Sony!;)
slider
12-08-03, 06:59 AM
Here's a link that addresses your problem: http://www.repairfaq.org/REPAIR/F_tvfaqa.html#TVFAQA_010 It's pretty much what kuhurdler said with a little more detail. Hope this helps.
Smokey
12-08-03, 08:16 PM
Assuming I am talking about a standard television set, the
problem is around the high voltage transformer. And, it is a bad
solder connection or connections.
This problem has been noted for over twenty years. The high
voltage transformer is not soldered down correctly and the set
exhibits a high voltage "squeal" at the frequency of the Horizontal Oscillator frequency. Most folks don't hear 7880 Hz.
But, if you hear it, the solution is to solder down the high voltage
transformer and correct the bad solder connections on the board.
And, if you want a really good site, try us at our new site:
xxxxxxxxx
We're all the same moderators from this site that have struck out
on our own.
Warmest regards,
Smokey ;)
problem is around the high voltage transformer. And, it is a bad
solder connection or connections.
This problem has been noted for over twenty years. The high
voltage transformer is not soldered down correctly and the set
exhibits a high voltage "squeal" at the frequency of the Horizontal Oscillator frequency. Most folks don't hear 7880 Hz.
But, if you hear it, the solution is to solder down the high voltage
transformer and correct the bad solder connections on the board.
And, if you want a really good site, try us at our new site:
xxxxxxxxx
We're all the same moderators from this site that have struck out
on our own.
Warmest regards,
Smokey ;)