This series aims to help you turn on and off the TV (broadcast start and finish) automatically. This tool does not need to enable or disable each day, but set all the time. The use of electricity in stand-by state is 0.05 watts, an efficient and economical. VHF amplifier section of this series should be regulated-set as follows: For the working area of CH4, CH5 and CH6, then we must set Trimmer capacitors and inductor L2 to the right of the desired frequency. To work area CH7, CH8 and CH9, we must set Trimmer capacitors and inductor L2.   This tool (component prices listed) are now in the work area CH5. VHF amplifier is placed on a brass plate, which is also a patron. While other parts of the circuit mounted on the PCB, including the power supply. The antenna as input devices can diparalel with TV antenna or the antenna itself. The output of this tool is 110 volts. The following is a schematic drawing:

Attachments:

Mini switches labeled AUTO, OFF, MANUAL, is to select the desired position:

- AUTO: working tool and the output voltage is through the control circuit.
- OFF: no voltage out.
- MANUAL: This tool serves as a common connector (voltage out is not controlled).
How to Use
Connect the antenna cable input with 300 ohm feeder T
Connect the voltage to 110 volts from the TV that this tool (110 OUT).
Connect the voltage from 110 volts to the back of the net PLN device.
Select the desired position (AUTO, OFF, MANUAL). If you select Automatic, the receiver must be ON.

source: elektroindonesia.com

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