アール・アイ・エフ List of Products and Services

Introducing the "20-Second Recording and Playback Board - Complete Unit." The recorded content does not disappear even when the power is turned off. Additionally, since it records to a semiconductor, there is no degradation in sound quality no matter how many times it is played back. It features a circuit suitable for clear audio recording and playback. Recording occurs while the record button is pressed, and pressing the playback button will play back the recorded content. It can be used as a voice memo or an embedded recording and playback board. 【Features】 ■ Messages do not disappear even when the power is turned off ■ Capable of recording and playback for up to 20 seconds ■ No degradation in sound quality due to recording on a semiconductor ■ Clear sound with a circuit suitable for audio recording and playback ■ A board with an additional interface for external control can also be designed *Please feel free to contact us for any electrical-related issues or for more details.

• Printed Circuit Board

Introducing the "PIC Writer - Finished Product." This product can write to the 12C508, 12C509, and 16F84, which are convenient for amateur use. The writing software can be downloaded from the internet. It is recommended for those who are considering trying out a microcontroller. 【Features】 ■ Low price ■ Convenient for amateur use ■ Easy to use *If you have any issues related to electrical matters or need more details, please feel free to contact us.

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Introducing the "Microphone Amplifier - Completed Product in Case." This product features an internal microphone compressor circuit, providing excellent sound pickup capability. It comes with a built-in omnidirectional condenser microphone, allowing you to simply connect the power to obtain line output. If the output cable is short, please use a commercially available RCA extension cable. For stereo input, please use a commercially available RCA splitter adapter. 【Features】 ■ Can be used directly for audio input to line-level devices such as video decks ■ Captures even faint sounds clearly ■ Compressor circuit can be turned off via jumper pins on the internal circuit board ■ Suitable for automatic recording systems ■ No need for complicated microphone connections with the built-in condenser microphone *For any electrical-related inquiries or details, please feel free to contact us.

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Introducing the "386 Main Amplifier Unit." This product is a compact general-purpose power amplifier. It features an easy-to-use gain setting of 20 times. You can also adjust the volume using the semi-fixed potentiometer on the circuit board. For more details about other products, please feel free to contact us. 【Features】 ■ Compact ■ General-purpose ■ Easy-to-use gain setting of 20 times ■ Volume adjustment available with the semi-fixed potentiometer on the circuit board *If you have any electrical-related concerns or need more details, please do not hesitate to contact us.

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Introducing the "Video 3-Way Splitter Complete Unit." Convenient for professional use such as security. One of the three outputs is a through OUT output that remains active even when the power is off. It can distribute signals without any output degradation for applications that require distribution. Please use a DC power supply of 8 to 12V. 【Features】 ■ Easy to use ■ Convenient for professional use such as security ■ When signal distribution is urgently needed in equipment-related situations, it comes in a case for immediate use *For any electrical-related issues or further details, please feel free to contact us.

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Introducing the "AV 5-Way Splitter Complete Unit." This product can split stereo audio signals and video signals into five outputs without any signal level degradation. Additionally, even when the power is off, signals are still output to the through output, making it convenient. Note that output 1 is a through output, so it will still provide output even when the power is off. You can also use two units of this product to achieve a 9-way split. 【Features】 ■ Splits both audio and video into five outputs ■ Convenient as it outputs signals to the through output even when powered off ■ Usable for distributing signals from one AV device to multiple devices *If you have any issues related to electrical matters or need more details, please feel free to contact us.

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Introducing the "Video Motion Sensor Automatic Recording Complete Unit." It can detect motion within a specified area from video signals such as those from a video camera and enable automatic recording. (A video deck compatible with automatic recording is required for this feature.) It is suitable for situations where there is already a camera system in place or where additional sensors cannot be added. Please use a DC12V power supply. 【Features】 ■ Automatic recording using only video signals ■ The video camera acts as the sensor, operating solely on signals from the camera ■ Easy connection if there is an existing camera system *If you have any issues related to electrical matters or need more details, please feel free to contact us.

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Introducing the "LANC Control Board Complete Unit." This product allows remote control of devices equipped with a LANC control terminal, such as video cameras and video decks. Since it can be controlled via contact input, it has a wide range of applications and is suitable for connecting controllers and other devices. Of course, it can also be used independently as a wired remote control. 【Features】 ■ Power is supplied from the LANC device, so no additional power source is needed. ■ The recording key operates with a single press. ■ Its contact input allows for broad applications, making it ideal for connecting controllers and other devices. *For any electrical-related inquiries or further details, please feel free to contact us.

• Printed Circuit Board

Introducing the "Digital Audio Optical Selector." This product selects one from four digital optical signals and distributes that output to four. Each output uses a dedicated optical output device, ensuring there is no decrease in optical output. Please note that immediately after powering on, input 1 will always be selected. It is convenient to connect frequently used devices to input 1. 【Features】 ■ Distribution function included ■ Selects one from four digital optical signals and distributes that output to four ■ No decrease in optical output as each output uses a dedicated optical output device *If you have any issues related to electrical matters or need more details, please feel free to contact us.

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Introducing the "Simple Infrared Remote Control Repeater - Complete Unit in Case." This product relays infrared remote signals to devices that are out of reach of the remote control. It allows you to send infrared remote signals to distant locations, such as when your home theater or equipment rack is placed behind you. It can be conveniently used with various remote control devices without the need for complicated settings, regardless of the type of remote control. 【Features】 ■ Relays infrared remote signals to devices that are out of reach of the remote control ■ No complicated settings required for use, allowing for a mix of different remote control types ■ Designed with a focus on basic performance ■ Capable of sending infrared remote signals to distant locations, such as when your home theater or equipment rack is placed behind you *For any electrical-related inquiries or further details, please feel free to contact us.

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This document is a user manual for the "Infrared Sensor Unit Complete Module." This product is an infrared sensor that detects and outputs infrared radiation emitted from the human body. The detection range is approximately 5 degrees, allowing it to focus on a narrow area. It reacts to an extremely narrow range, making it effective for detecting only specific areas. 【Contents】 ■ Overview ■ External Connections ■ Precautions ■ Specifications * The downloadable document is the user manual. * For more details, please refer to the PDF document or feel free to contact us.

• Sensors

This document is the instruction manual for the soldering judgment kit 'SOL-01'. This product evaluates overall soldering and displays the results numerically. By pressing the detail button, it is possible to display the distinction between disconnections and solder shorts, as well as the numbers of defective areas. [Contents (partial)] ■ Overview ■ Assembly ■ Soldering Judgment ■ If Soldering Does Not Go Well ■ Correction of Solder Defects, etc. * The downloadable document is the instruction manual. * For more details, please refer to the PDF document or feel free to contact us.

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RIF Co., Ltd. specializes in electronic circuit design, electronic system design, and the sale of embedded circuit board design. We offer a wide range of products, including LED digital thermometers, simple infrared remote control repeaters, and LANC mode selectors. Additionally, we can produce prototypes and evaluation boards at low prices for small-scale production and hobby projects, so please feel free to contact us with your requests. 【Features】 ■ We can make some modifications to related products or develop new ones. ■ Depending on the content, we can produce even one unit. *For more details, please feel free to contact us.

• Circuit board design and manufacturing
• Printed Circuit Board