CFL interfering with TV remote?!

[Mark Daughtry, SR]

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

 

[amdx]

"Mark Daughtry, SR" <daughtrym@comcast.net> wrote in message
news:lsednUC_APXUu67VnZ2dnUVZ_v_inZ2d@comcast.com...

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

Yes, I read about the problem with flourescent lights twenty years ago.

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

 

[amdx]

"Mark Daughtry, SR" <daughtrym@comcast.net> wrote in message
news:lsednUC_APXUu67VnZ2dnUVZ_v_inZ2d@comcast.com...

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

Yes, I read about the problem with flourescent lights twenty years ago.

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

 

[Sjouke Burry]

Mark Daughtry, SR 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


Some do, and at the right frequency to, so your remote

stops working.

 

[Mike]

On Tue, 20 May 2008 14:28:45 -0500, "Mark Daughtry, SR" <daughtrym@comcast.net> 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."

 

[Yukio YANO]

Mark Daughtry, SR 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


I was running 12 volt flourescent fixtures in my in my Motor Home and it

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

 

[Eeyore]

"Mark Daughtry, SR" wrote:

Will a CFL interfere with a TV remote

Yes, I've heard of this. I forget the mechanism now but ISTR that it was due to
the use of cheap CFLs.

Graham