•  
  •  

TV remote control Blocker

- Designed by Naveen P N

Just point this small device at the TV and the remote gets jammed . The circuit is self explanatory . 555 is wired as an astable multivibrator for a frequency of nearly 38 kHz. This is the frequency at which most of the modern TVs receive the IR beam . The transistor acts as a current source supplying roughly 25mA to the infra red LEDs. To increase the range of the circuit simply decrease the value of the 180 ohm resistor to not less than 100 ohm.

It is required to adjust the 10K potentiometer while pointing the device at your TV to block the IR rays from the remote. This can be done by trial and error until the remote no longer responds.

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

Dell PowerEdge 1950 E1624 Server (9423)
$19.95 Dell PowerEdge 1950 E1624 Server (9423) picture
Ushio Xeon Short Arc Lamp UXL-150SO (PF1924)
$139.99 Ushio Xeon Short Arc Lamp UXL-150SO (PF1924) picture
Electro PowerPacs Leitz Model 1220 Industrial Xeon Lamp PSU Power Supply PARTS
$49.99 Electro PowerPacs Leitz Model 1220 Industrial Xeon Lamp PSU Power Supply PARTS picture
1PC USED Intel Xeon X5680 Six Core 12M Cache 3.33 GHz LGA 1366 #017
$138.99 1PC USED Intel Xeon X5680 Six Core 12M Cache 3.33 GHz LGA 1366 #017 picture
Vintage Carl Zeiss Laboratory 1162 Combo Arc Lamp Supply 150 Xeon 200 Mercury
$249.99 Vintage Carl Zeiss Laboratory 1162 Combo Arc Lamp Supply 150 Xeon 200 Mercury picture