How Does Remote Really Work ?
The concept is pretty simple and easy. You press a button. When you do that you complete a specific connection. The chip senses that connection and knows what button you pressed. It produces a morse-code-line signal specific to that button.
The transistors amplify the signal and send them to the infrared LED, which translates the signal into infrared light. The sensor in the TV can see the infrared light and "seeing" the signal reacts appropriately.
The frequency of this transmission is between 35kHz to 40kHz(38kHz in most of them).
What the jammer does is that it sends out a steady stream of binary code at the same frequency as of the remote.The TV cannot decode as it contains no information.
The information transmitted by the remote does not get pass through as the jammer is on and does not respond at all.
So, the remote is jammed and you can tune in on to one channel and give away the remote.
Here is my schematic and board file made on eagle.
Step 1: What you need
1. NE555 timer IC
2. 1N4148 high speed switching Diode
3. 10K Ohm variable resistor
4. 1.5K Ohm resistor
5. 220 Ohm resistor
6. 510 Ohm resistor
7. 1 Ohm resistor
8. 10nF Ceramic Capacitor
9. Infrared LED
11. transistor - BC547/BC548
1. Soldering Iron
2. Solder wire
4. 9V Battery or Adapter
5.9V battery holder