If you have power to a circuit (you can tell with a multi meter), and it does not do what it is supposed to it is bad. Make sure the fuse is good. If fuses keep blowing then there is too much current, which is usually indicative of a short. If you see smoke, there's a good chance you're circuit is bad. An electronics book will tell you what to look for if you are trying to troubleshoot a circuit board. Many times the board will need to be replaced as individual components are too small and impossible to get at to change.
Impossible to give a specific answer without more information. Is it a BJT or a FET? Most general answer is you first have to understand the circuit using the transistor and what it's supposed to do. Then, 1. Check that the power supply voltages are correct. 2. Check that the DC biases are correct. 3. Check that the input signal is correct. 4. Check the output. But you have to know in advance what to expect.
There's not much good things about a series circuit, but here's one that i know about. A series circuit has more than one power source or output device. It uses a single path to connect all the devices. An advantage of a series circuit is that you can add more power devices, such as more batteries, and increase the force of the output. This will give you more power. P.S. If you wanna see a bad thing about a circuit, then just type, What is a bad thing about a series circuit? in that box thingy. PEACE ADAM K HAPPINESS
Newer oxygen sensors are heated for accuracy. If the heater element goes bad the oxygen sensor doesn't work and needs to be replaced. If you have an oxygen sensor heater malfunction, it just means that the oxygen sensor has failed.
The best way to repair particle board sub-flooring is to cut out the bad spot and replace with new board. You can only use vinyl and self stick tile over particle board. Ceramic tile cannot because the moisture in the thin-sets will break down the particle board.
faulty thermostat, stuck fan relay, bad fan motor, no voltage to motor, bad circuit board, bad run capacitor...
bad relayhow
A circuit breaker can go bad due to factors such as overload, short circuit, age, or mechanical wear and tear. These issues can cause the circuit breaker to trip frequently or fail to function properly.
A bad connection, or excessive resistance on that circuit.
The causes of electricity fire outbreaks in buildings are bad wires or overloading the circuit.
Overcharging (bad voltage regulator) or a short circuit inside the battery.
If you have power to a circuit (you can tell with a multi meter), and it does not do what it is supposed to it is bad. Make sure the fuse is good. If fuses keep blowing then there is too much current, which is usually indicative of a short. If you see smoke, there's a good chance you're circuit is bad. An electronics book will tell you what to look for if you are trying to troubleshoot a circuit board. Many times the board will need to be replaced as individual components are too small and impossible to get at to change.
Could Be a fuse on the Circuit Board or The Power Supply Capacitors are bad.
Could be a bad fuse, a bad relay, short circuit caused by ground fault, and many more reasons.
There was a couple years that Chevy and GMC used a circuit board in the tail light assembly. It was a bad design. We had several in our fleet at work and many went bad. They are available from the dealer new. Not much you can do to repair the old one, just replace it with a new one.
Typical causes of a compressor not running are: low coolant, blown fuse in compressor circuit, bad compressor, bad temperature sensor.
Check for a bad ground in brake light circuit Check for a bad stop light bulb where both filaments (double filamented bulbs) are touching back feeding circuit