Key facts
- Manuals
- 53
- Models
- 6
- Languages
- EN
- Last added
- 2026-09-28
JRC models by category
Featured JRC manuals

JRC VHF 200 User Manual
This manual provides information for the JRC VHF 200 marine radio, including operation instructions, DSC (Digital Selective Calling) usage, and basic installation guidance. It references related JRC marine radio models and service resources.
The document also mentions repair services, product descriptions, and links to additional user manuals for JRC VHF series radios.
Covers: Manual · Installation Guide · User Manual · Repair Service · Specifications
JRC JFE-680 Echo Sounder User Manual
This manual introduces the JFE-680 Echo Sounder, confirming its compliance with IMO performance standards for seabed and digital depth displays. It emphasizes the importance of reading the entire document to ensure safe and correct operation, and it outlines the symbols and pictograms used throughout the guide.
The guide offers detailed usage hints, safety cautions, and installation advice, including proper handling of power cords, fuse replacement, temperature limits, and grounding requirements. Contact information for JRC service centers worldwide is provided for further assistance.
Covers: General Information · Safety Warnings · Symbols and Pictograms · Usage Hints · Electrical Installation · Power and Fuse Handling

JRC NRD-525 Phase Locked AM & IF-Filter Board Instruction Manual
This manual provides step‑by‑step installation instructions for the Phase Locked AM & IF‑Filter board used with the JRC NRD‑525 receiver. It details removal of the receiver covers, connector identification, cable soldering, and board insertion procedures.
The document also covers test and adjustment procedures, operating guidelines, and wiring diagrams to ensure proper AM phase‑lock performance and optimal signal‑to‑noise improvement.
Covers: Installation Instructions · Test & Adjustment Procedures · Operating Instructions · Circuit Diagrams · Physical Drawings · Block Diagrams

JRC NRD-92/NRD-93 Receiver Instruction Manual
This manual provides a complete description of the JRC NRD-92 and NRD-93 receivers, including their high‑stability digital synthesizers, automatic tuning input filters, noise‑blanker, and optional pass‑band shift functions. It outlines the general construction, modular plug‑in PCB design, and the various reception modes such as CW, SSB, DSB, PSK, and FAX.
The document also details installation steps, wiring diagrams, operation panels, troubleshooting procedures, and maintenance checks. Appendices contain block diagrams, part arrangements, and contact information for JRC support.
Covers: General Description · Specifications · Composition · Installation · Operation · Circuit Description
Latest JRC manuals
JRC VHF 200 User Manual
User Manual 4 pages · 18 KB · ENUser manual for the JRC VHF 200 marine radio, covering operation, DSC features, and installation basics.
JRC JFE-680 Echo Sounder User Manual
User Manual 80 pages · 2.5 MB · ENThe JRC JFE-680 Echo Sounder User Manual provides safety warnings, installation guidance, and operating instructions for the marine depth‑measurement device.
JRC NRD-525 Phase Locked AM & IF-Filter Board Instruction Manual
User Manual 27 pages · 946 KB · ENInstruction manual for installing, testing and operating the JRC NRD-525 Phase Locked AM & IF‑Filter board.
JRC NRD-92/NRD-93 Receiver Instruction Manual
User Manual 60 pages · 4.1 MB · ENInstruction manual for JRC NRD-92 and NRD-93 receivers covering features, specifications, installation, operation, and maintenance.
JRC NRD-505 All-Wave Receiver Instruction Manual
User Manual 47 pages · 7.7 MB · ENThe JRC NRD-505 all‑wave receiver instruction manual provides specifications, setup, operation, and maintenance guidance.
JRC NJL5175K/77K Manual
This document is the technical manual of NJL5175K. It introduces the features and characteristics of the product.
JRC NJL5172K Manual
NJL5172K is a product of NJL company. The specifications of this product are for reference only and do not guarantee that there will be no errors or omissions in this product. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.
JRC NJL5171K Manual
This is the datasheet of NJL5171K, which mainly introduces the features and characteristics of the product.
JRC NJL5165K Manual
NJL5165KL is a voltage amplifier produced by NJL. Its maximum output current is 0.5A and its maximum output power is 2W.
JRC NJL5165K-H2 Manual
NJL5165K-H2 MEMO product description
JRC NJL5162K/64K/66K/68K Manual
This handbook provides detailed technical parameters of NJL5162K/64K/66K/68K
JRC NJL5161K/63K/65K/67K Manual
NJL5161K/63K/65K/67K MEMO is an integrated circuit manufactured by Tokyo Electric Power. The model number of this product is NJL5161K/63K/65K/67K
JRC NJL25V/28H000 Manual
The NJL25V/28H000 series are small, high-performance receivers for infrared remote control systems. They can operate under low and wide supply voltage (2.7V to 5.5V). The NJL25V/28H000 series are metal case type with mesh window to improve EMI characteristic. Even under strong EMI noise condition such as TV, Air-conditioner, etc., NJL25V/28H000 series can work normally.
JRC NJL21H/21V/22H/23H/24H000A handbook(1)
NJL21H/21V/22H/23H/24H000A series are small and high performance infrared remote control receivers, with wide and low supply voltage (2.7V to 5.5V), enhanced immunity against the disturbance light.
JRC NJW1142 Data Sheet
NJW1142 is a sound processor that includes all of the functions required to process the audio signal for TV, such as tone control, balance, volume, mute, and AGC functions. It also performs eala (NJRC Original Surround) which is regenerated 3D surround sound with only two speakers. All of the internal status and variables are controlled by I2C BUS interface.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in JRC manuals
What should I do if water spills on the equipment?
Immediately turn off the power switch and contact JRC or its agent.
Can the echo‑sounder be operated at temperatures below -15 °C?
No, the equipment must not be stored or operated below –15 °C.
How do I tune the receiver frequency?
Use the MHz‑band setting knob, the UP/DOWN switch, and the 10 kHz/rotation TUNE knob; the display automatically carries and borrows digits.
What is the image rejection ratio of the NRD‑92?
The NRD‑92 provides an image rejection ratio of 60 dB or more.
How many frequency memory channels are available?
The optional frequency memory unit can store up to four frequencies.
What is the frequency stability after warm‑up?
Frequency stability is less than 100 Hz change per hour after warm‑up.
