1. Introduction
This manual provides comprehensive instructions for assembling, operating, and maintaining your Diymore DSO183 Digital Oscilloscope DIY Kit. Designed for electronics enthusiasts and educational purposes, this kit allows you to build a functional digital oscilloscope with a 500KHz bandwidth and integrated signal generator. Please read all instructions carefully before beginning assembly.
2. Product Features
- Single-board structure design: Compact integrated structure, convenient installation, high stability, suitable for a variety of experimental environments.
- Built-in signal generator: Integrates sine wave, triangle wave, and other waveform output functions to meet diversified testing needs.
- Waveform storage and recall: Supports waveform saving and quick call-out function, which is convenient for comparative analysis and repeated use.
- 500KHz high bandwidth: High-frequency response capability, accurately captures the details of complex signals.
- Ideal tool for electronic enthusiasts: Easy to operate, powerful, a powerful assistant for learning electronic technology and exploring the world of circuits.
3. Package Contents
The DSO183 Digital Oscilloscope DIY Kit includes the following components:
- Main circuit board (SMD pre-soldered)
- Various resistors (e.g., 100K, 1.8M, 200K, 2M, 20K, 300Ω, 18Ω, 1.2K, 12Ω, 47Ω, 3K, 16K)
- Capacitors (e.g., 220pF, 100nF, 10nF, 1nF, 100pF, 10pF, 0.01uF)
- Diodes (e.g., 1N4148)
- BNC socket
- USB Type-C socket
- Toggle switches (e.g., 2-position, 3-position)
- Push buttons
- Potentiometers
- LEDs
- Acrylic panels (optional, to be purchased separately)
- USB power cord (included with some kits)
- BNC to alligator clip probe
- Assembly hardware (screws, nuts, standoffs)
4. Assembly Instructions
The DSO183 Digital Oscilloscope is provided as a DIY kit. The main circuit board has SMD components pre-soldered. You will need basic soldering skills and tools (soldering iron, solder, wire cutters, multimeter) to complete the assembly.
4.1. Component Identification and Preparation
- Unpack the kit: Carefully remove all components from their packaging.
- Identify components: Use the provided part list (if available) and a multimeter to identify and sort the resistors, capacitors, and other through-hole components. The video demonstrates using a multimeter to verify resistor values.
- Prepare components: Bend the leads of the components as needed to fit into the designated holes on the PCB.
4.2. Soldering Components
Follow the PCB markings and the circuit diagram (Figure 4.2) to correctly place and solder each component. Start with smaller components like resistors and diodes, then proceed to larger components like switches, sockets, and potentiometers.
- Insert the component leads into the correct holes on the PCB.
- Bend the leads slightly to hold the component in place.
- Solder each lead to its respective pad on the underside of the PCB.
- Trim any excess lead length using wire cutters after soldering.
4.3. Assembling the Enclosure (if applicable)
If your kit includes acrylic panels for an enclosure, follow these steps:
- Attach the front and rear panels to the oscilloscope board using the provided nylon posts and locking screws.
- Ensure all connections are secure and the board is properly aligned within the panels.
5. Basic Operation
Once assembled, connect the DSO183 to a DC 5V power source via the USB Type-C interface. Use the provided BNC probe to connect to the circuit you wish to test.
5.1. Connectors, Switches, and Keys Overview
- Power Input: DC 5V via USB Type-C.
- Signal Input: BNC connector for oscilloscope probe.
- Coupling Switch (CPL): Selects DC, AC, or GND coupling. When set to GND, the input signal is disconnected, and the oscilloscope input is grounded (0V input).
- Sensitivity Switch 1 (SEN1) & 2 (SEN2): Adjusts the vertical sensitivity. The actual sensitivity value is displayed in the lower left corner of the screen.
- [SEL] key: Selects the parameter to be adjusted. The selected parameter is highlighted on the screen.
- [+] and [-] buttons: Adjust the selected parameter's value.
- [OK] button: Freezes the waveform (enters pause acquisition state). Press again to resume acquisition.
- Signal Generator Outputs: Includes sine wave, triangle wave, and square wave outputs (test signal, earth wire).
5.2. Language Selection
To select Chinese display, short JP4 on the back of the board with solder. For English display, ensure JP4 is open.
5.3. Waveform Display Examples
6. Specifications
| Parameter | Value |
|---|---|
| Bandwidth | 500KHz |
| ADC Accuracy | 12Bit |
| Real-time Sampling Rate | 1.5Msps |
| Waveform Buffer Length | 1024 points |
| Vertical Sensitivity Range | 10mV/div - 5V/div |
| Input Impedance | 1MΩ |
| Maximum Input Voltage | 50Vpk |
| Coupling Mode | DC, AC, GND |
| Horizontal Time Base Range | 1us/div - 500s/div |
| Trigger Mode | Auto, Conventional, Single |
| Trigger Edge | Rising/Falling |
| Power Supply | DC 5V (via USB Type-C interface) |
| Current Consumption | <100mA |
| Product Dimensions | 118 x 76 x 12mm |
7. Troubleshooting
- No power: Ensure the USB Type-C cable is securely connected to a 5V DC power source and the oscilloscope. Check the power source for functionality.
- No waveform display:
- Verify the probe is correctly connected to both the oscilloscope and the test circuit.
- Check the Coupling Mode (CPL switch) is set appropriately (AC/DC, not GND unless intentionally grounding the input).
- Adjust the vertical sensitivity (SEN1/SEN2 switches) and horizontal time base to match the expected signal.
- Ensure the [OK] button is not pressed, which would pause waveform acquisition.
- Unstable waveform: Adjust the trigger mode and trigger edge settings to stabilize the waveform.
- Incorrect readings:
- Ensure proper grounding of the oscilloscope and the circuit under test.
- Check for loose connections or faulty components if this is a newly assembled kit.
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquids or abrasive cleaners.
- Storage: Store the oscilloscope in a dry, dust-free environment when not in use.
- Handling: Handle the device with care to prevent damage to components or connections.
9. User Tips
- When assembling, double-check resistor values with a multimeter before soldering to avoid errors, as color codes can sometimes be hard to read.
- Take your time with soldering, ensuring good solder joints to prevent intermittent connections.
- For educational purposes, experiment with different signal types from the built-in generator to understand oscilloscope functions.
10. Warranty and Support
For any technical support or inquiries regarding your DSO183 Digital Oscilloscope DIY Kit, please contact the seller or manufacturer directly. Keep your purchase records for reference.
