CFL interfering with TV remote?!
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Posted by Mark Daughtry, SR on May 20, 2008, 3:28 pm
Please log in for more thread options flat screen I purchased for my bedroom seems to either stop working or will marginally work till I turn off the overhead ceiling fan lights (4@100 watt output). Just kind of guessed at the solution and tested my theory which works (or doesn't work) consistently. Do these lights put out enough IR radiation to interfere? Regards, Mark Daughtry, SR | |||||||||||||||||||
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Posted by amdx on May 20, 2008, 3:53 pm
Please log in for more thread options Within a month I had a "remote doesn't work" complaint with a vcr. I found the unit worked properly. Sent the owner on his way, the next day he called saying the remote wasn't working, after some discussion I found he had installed a new flourescent light fixture. After he shut the light off it worked fine. To much light overdrives the circuit and it can't respond to the remote. Can you put a shade above the sensor to keep direct light from the tv? Mike | |||||||||||||||||||
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Posted by Sjouke Burry on May 20, 2008, 4:00 pm
Please log in for more thread options Mark Daughtry, SR wrote:
> Will a CFL interfere with a TV remote (I guess I mean "normally")? The new
Some do, and at the right frequency to, so your remote
> flat screen I purchased for my bedroom seems to either stop working or will > marginally work till I turn off the overhead ceiling fan lights (4@100 watt > output). Just kind of guessed at the solution and tested my theory which > works (or doesn't work) consistently. Do these lights put out enough IR > radiation to interfere? > > Regards, > Mark Daughtry, SR > > stops working. | |||||||||||||||||||
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Posted by Mike on May 20, 2008, 4:18 pm
Please log in for more thread options wrote:
>Will a CFL interfere with a TV remote (I guess I mean "normally")? The new
>flat screen I purchased for my bedroom seems to either stop working or will >marginally work till I turn off the overhead ceiling fan lights (4@100 watt >output). Just kind of guessed at the solution and tested my theory which >works (or doesn't work) consistently. Do these lights put out enough IR >radiation to interfere? > >Regards, >Mark Daughtry, SR > Yep, I have a flourescent fixture above me bench that has an electronic ballast. It sprews out lots of EMI at 32KHz that shows up in projects I work on and I have to shut the light off to see a clean scope waveform. On the bright side, It does make a nice source when testing photo detectors. CLFs seem to be just about as bad. Mike "The way of a fool seems right to him, but a wise man listens to advice." | |||||||||||||||||||
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Posted by Yukio YANO on May 20, 2008, 8:58 pm
Please log in for more thread options Mark Daughtry, SR wrote:
> Will a CFL interfere with a TV remote (I guess I mean "normally")? The new
I was running 12 volt flourescent fixtures in my in my Motor Home and it
> flat screen I purchased for my bedroom seems to either stop working or will > marginally work till I turn off the overhead ceiling fan lights (4@100 watt > output). Just kind of guessed at the solution and tested my theory which > works (or doesn't work) consistently. Do these lights put out enough IR > radiation to interfere? > > Regards, > Mark Daughtry, SR > > Blocked my Remote Controller ! I had to Shade the Sensor to block the interference from the FLourescent Lamps. The Electronic Ballast must run around 19KC, close to the modulating Frequency of the IR Remote Controller. I know that the R/C Sensors are heavily filtered to block the 60 cycle output of flourescent lamps from interfering with the operation of Remote Controllers. The Electronic Ballasts are not limited to 60 cycle output operation! I guess that includes 110 Volt AC Units as well as the 12 volt DC stuff. Yukio YANO | |||||||||||||||||||
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> flat screen I purchased for my bedroom seems to either stop working or
> will marginally work till I turn off the overhead ceiling fan lights
> (4@100 watt output). Just kind of guessed at the solution and tested my
> theory which works (or doesn't work) consistently. Do these lights put out
> enough IR radiation to interfere?
>
> Regards,
> Mark Daughtry, SR
>