Oscilloscope can be utilized in a lot of fields. When employing, you might operate into some difficulties. Below are the probable reasons of some common problems.
1. No spot or wave condition
The electric power is not connected.
The brightness knob is not modified perfectly.
The change knob of X or Y axis is at a slanting posture.
The stability potentiometer of the Y axis isn’t modified appropriately, which final results in a really serious imbalance in the DC amplifier.
2. The horizontal waveform cannot be proven.
Bring about selective swap is turned to the outside the house and no external trigger sign is input, which end result in no sawtooth wave (STW).
Degree knob doesn’t modify thoroughly.
The balance potentiometer isn’t going to change to the vital condition that allows the scanning circuit to be activated.
The X-axis choice is wrongly put in the external posture and no exterior signal is enter to the socket.
For two-channel oscilloscope, if only Channel A is employed (no enter sign in Channel B), and the cause swap is pulled to the locale of YB, there will be no STW.
3. The vertical waveform won’t be able to be revealed.
Input DC-coupling ground-AC swap was wrongly put in ground posture.
The higher and very low opportunity finishes of the enter are at the anti-termination of that of the circuit.
Enter signal is way too tiny and the V/div is wrongly pulled to small sensitivity stage.
4. The wave is not stable.
The stability potentiometer is above-rotated clockwisely, resulting in scanning circuit less than a self-excitation scanning status but not a significant state to be brought on.
Result in coupling AC, AC (H), DC switches are not selected the proper degrees in accordance to diverse sign frequency.
When the high-frequency induce condition is picked, the cause selector change is mistakenly put outside the file.
Some oscilloscope will display screen instable wave when scanning underneath the computerized transmission.
5. Vertical strains are far too intense or shown as a rectangular.
t / div swap isn’t picked appropriately, resulting in f scan also lessen than f Sign.
6. Horizontal strains are as well intense or shown as a tilt line horizontally.
t / div swap is just not chosen thoroughly, resulting in f scan also greater than f signal.
7. AM waveform problems.
t/div change is improperly picked, resulting in incorrect scanning frequency that is chosen in accordance to the amplitude variety frequency but not the audio amplitude modulation sign frequency.
As operators may perhaps absence know-how of the principles of oscilloscope and oscilloscope’s control panels, they may perhaps encounter many challenges when employing. Understanding them in advance will be a good assist.