Double-check all the connections to ensure that there are no shorts or loose connections. Testing the Circuit Connect the 5V DC power supply to the input terminals. Measure the output voltage using the multimeter to ensure that it reaches the desired value (e.g.,, 24V). Adjust the duty cy...
Chip crystal oscillators with more than four pins must be active crystal oscillators; Check the ground terminal of the multimeter to see if there are two pins connected on the opposite side. Taking Yangxing passive crystal oscillator, YSX321SL series as an example, the following is the size an...
First take a look at the speaker driver: take a multimeter, set it to measure resistance and check the driver’s terminals. If you get the reading around 2, 4, 8 or 16 Ohms, then the driver’s coil should be OK. If you don’t get any reading at all (the circuit is open) that...
This circuit board has two diodes, several resistors and a 14-pin integrated circuit. When both halves of the tip come into contact with solder, the chip routes power from the batteries through that branch of the circuit. The flip side of the circuit board So, when you turn the Cold ...
Check Each Wire and Connection Touch the multimeter probes to both ends of each wire and component connection to ensure they are properly connected with continuity. Verify Power and Ground Check continuity from power and ground rails out to each part of your circuit that should connect to the su...
Use the voltage decay test and the continuity check as your determinative tests and use the ohms test as a rough check. Step 8 Test a second electrolytic capacitor with a voltage rating of 63 volts and a capacitance of 6.8 microfarads. Construct a simple circuit with two resistors (each of...
You can combine capacitors and resistors to form filters. A filter removes specific frequencies from an audio signal and lets others pass through. For example, if you want to remove high frequencies and let the lower frequencies pass through (e.g. in a sub-woofer), you can build a low-pa...
I don't really see the need to repaint it. Here's one more detail that will be of interest to...pretty much nobody. The crossover frequency of my amp is adjusted by replacing DIP resistors which are accessed from the underside of the amplifier. Since I didn't want to have to ...
Set the knob to "20V" in the DC range (the DC Voltage range has a V with a straight line next to it). Multimeters are generally not autoranging. You have to set the multimeter to a range that it can measure. For example,2Vmeasures voltagesup to 2 volts, and20Vmeasures voltagesup ...
To understand the damage characteristics of resistors, you don't have to go to great lengths. Resistors are the most numerous components in electrical equipment, but not the ones with the highest damage rate. The open circuit is the most common damage to the resistance, and it is rare for ...