RUIBOZHI LCR-TC1 Multi-function Tester Instruction Manual

1. Introduction

The RUIBOZHI LCR-TC1 is a versatile and cost-effective multi-function tester designed for electronic enthusiasts and professionals. It can accurately detect and measure various electronic components, including NPN and PNP transistors, capacitors, resistors, diodes, triodes, N-channel and P-channel MOSFETs, IGBTs, JFETs, thyristors, and batteries. Additionally, it features an infrared (IR) waveform detection function.

This tester operates with a single button, offering automatic detection and shutdown for ease of use. Results are clearly displayed on a vibrant backlit TFT screen.

2. Important Safety Precautions

Failure to follow these instructions may result in damage to the tester or the components being tested, and is not covered by warranty.

• Discharge Capacitors: Always ensure capacitors are fully discharged before testing. Testing a charged capacitor can immediately damage the instrument.
• No Live Circuit Testing: Do not test components while they are connected to a live circuit board or powered. This instrument is active output and testing powered circuits will damage it.
• No Unpowered Circuit Board Testing: Do not use the test lines to test an unpowered circuit board. This can damage the instrument and prevent it from powering on.
• Transformer Inductance: The inductance of transformers cannot be tested with this device.
• Proper Connection: Do not connect the three test hooks directly onto a circuit board for testing. Components should be tested individually.
• Charging: If the internal battery voltage drops below 3V, charge the device using a 5V power source or a USB port before further use.

3. Package Contents

Please verify that all items are present in your package:

• 1 x RUIBOZHI LCR-TC1 Multi-function TFT Transistor Tester
• 1 x Electronic Components Set (for testing)
• 1 x USB Charging Cable
• 3 x Test Hooks

4. Product Overview

The LCR-TC1 features a compact design with a clear TFT display and intuitive controls.

• TFT Display: Shows test results, component type, and parameters.
• Test Points (1231232, KAA1233): Sockets for inserting component leads.
• IR Sensor: For infrared remote control decoding.
• Start Button: Initiates the test.
• ZIF Socket Lever: Used to open and close the Zero Insertion Force (ZIF) socket for component placement.
• Micro USB Port: For charging the internal lithium battery.

5. Setup

5.1 Initial Charge

Before first use, or if the battery voltage is below 3V, connect the tester to a 5V USB power source using the provided USB cable. The device will indicate charging status on the display.

5.2 Power On/Off

Press the 'Start' button to power on the device and initiate a test. The device features automatic shutdown after a period of inactivity to conserve battery. You can also press and hold the multi-function button to manually turn off the detector.

6. Operating Instructions

To test a component, ensure it is not connected to any power source and, if it's a capacitor, that it is fully discharged. Lift the lever of the ZIF socket, insert the component leads into the appropriate test points (usually 1, 2, and 3, or KAA for specific Zener diodes), close the lever, and press the 'Start' button. The tester will automatically identify the component and display its parameters.

6.1 Component Testing Examples

• Resistors: Insert the resistor leads into any two or three test points (e.g., 1, 2, 3). The tester will display the resistance value. For dual resistance, it will show two resistance values.
• Inductors: Insert the inductor leads into test points. The tester will display the inductance (L) and resistance (R) values.
• Capacitors: IMPORTANT: Always discharge capacitors before testing. Insert the capacitor leads into test points. The tester will display capacitance (C), voltage loss (Vloss), and Equivalent Series Resistance (ESR).
• Diodes (including Zener Diodes): Insert the diode leads into test points. The tester will identify the diode type and display forward voltage (Uf). For Zener diodes above 5V, use the dedicated KAA test area (refer to Figure 2 for location).
• Transistors (BJT-NPN, BJT-PNP): Insert the transistor leads (Emitter, Base, Collector) into the test points. The tester will identify the type and display hFE, Ic, and Ube values.
• MOSFETs (N-E-MOS, P-E-MOS, N-D-MOS): Insert the MOSFET leads (Gate, Drain, Source) into the test points. The tester will identify the type and display Vt, Cg, and Rds values.
• Triacs and Thyristors: Insert the leads into the test points. The tester will identify the component.
• IGBTs: Insert the leads into the test points. The tester will identify the component.

6.2 Infrared (IR) Remote Control Decoding

After a component test is complete, point an infrared remote control at the 'IR' light sensor on the tester. Press a button on the remote control. If the detector successfully decodes the signal, it will display the data code and infrared waveform. Note that infrared decoding supports only the Hitachi format.

7. User Tips

• The LCR-TC1 is excellent for measuring capacitance, inductance, and resistance, providing accurate readings for component identification and troubleshooting.
• The digital display makes it easy to read and interpret component values quickly.
• For best results and to prevent damage, always remove components from the circuit board before testing. The device is not designed for in-circuit testing.
• The tester provides component parameters, allowing you to determine if a component is 'good' or 'bad' by comparing the measured values to expected specifications.

8. Specifications

9. Maintenance

9.1 Cleaning

Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.

9.2 Storage

Store the tester in a dry environment, away from direct sunlight and extreme temperatures. Keep it away from dust and moisture.

9.3 Battery Care

Charge the internal lithium battery regularly, especially if the device will not be used for an extended period. Avoid completely draining the battery to prolong its lifespan.

10. Troubleshooting

• Tester does not power on: Ensure the battery is charged. If the device was used to test an unpowered circuit board, it might be damaged.
• "No, unknown, or damaged part?" message: This indicates the tester could not identify the component, or the component is faulty/damaged. Re-check component placement and ensure it's not damaged.
• Inaccurate readings: Ensure component leads are clean and properly inserted into the test points. Verify the component is fully discharged (especially capacitors).
• Instrument damage after testing: This often occurs if a charged capacitor was tested, or if the device was used on a live circuit. Refer to the safety precautions.

11. Warranty and Support

For any product quality issues or technical support, please contact the seller directly. Provide your purchase details and a clear description of the issue for prompt assistance.