Why does my audio amplifier keep blowing fuse?
There are 4 in this unit. They are the 3-legged parts connected to the heat sink. If you have a meter that has a diode check mode, test the 3 leads of each transistor. They should read around 0.6 with a diode checker. If they read shorted , then they are the problem.
What happens when you blow a fuse on a light fixture?
If one of them trips the circuit breaker or blows the fuse, you’ve identified the source of the problem. This means there is a short circuit in a light fixture or receptacle controlled by that switch, or there is a short circuit in the switch wiring. Replace or repair a faulty switch, fixture, or wiring. 4.
How can I tell if my car has a switched fuse?
You have double checked that this fuse is a switched fuse. Turn off the engine and pull the key from the ignition. We recommend checking the same fuse again when your car is off to triple check that it is a reliable switched fuse circuit.
What to do if a fuse is blown on a circuit breaker?
Turn it all of the way to “Off” and then to “On.” Turn the circuit breaker all of the way off, then flip it back to “ON.” If your system is protected by a fuse box instead of an electrical panel with circuit breakers, replace the fuse that is “blown.” Look for aa broken element beneath the fuse’s glass surface.
What causes a fuse to blow on a stereo?
Vibration can cause wiring to become loose. Tight working-space confines can create difficulty making connections in the first place. Turn the ignition key to the accessory setting and press the “Power” button a few times to verify the condition. Check that the stereo circuit fuse hasn’t blown.
Where is the 12 volt switch on a car stereo?
Locate the wire. Twelve volt switch wire is yellow or red. Look at the back of the stereo for indications of the wire types. Set your car to appropriate ignition position. Turn your key to the accessory position. Take the multimeter and with the negative probe on the ground, touch the volt switch wire with the positive probe.
Why is my car stereo not turning on?
Once again, if there is no value measured by the multimeter and you have done everything as you should, you have a blown fuse in the car use box. If the value measured is twelve volts, the switch wire and its fuse are in working order.
How do you replace a fuse on a car stereo?
There are usually spare fuses in the box, so you can replace the fuse with the same rated fuse. The size and color should match the existing fuse. Step 3 Remove the car stereo from its internationally standardized slot in the car’s dashboard known as a DIN — Deutsches Institut für Normung — slot.