Your audio system will not be in a position to give out admirable sound if the amplification mechanism is faulty. An amp plays a very vital role in a given sound system where it raises an electrical signal to a level suitable for an output device such as a speaker or headsets. If you detect that your speaker is giving out a weaker sound than expected, then you are supposed to have the amp checked. Another situation where amplifier repair will be needed is when the output generated is distorted or not clear.
Since amplification systems are constructed in a relatively simple manner, it is possible to identify the problem leading to the failure. A technician will follow certain steps at the time of executing the repair. The process begins with unplugging the faulty system and placing it on a suitable table.
A screwdriver is applied in loosening the side and top covers of the appliance. Once all components are visible, technicians normally look if there are components which are burned before they embark on sophisticated troubleshooting procedures. If the system had just failed, an odor will suggest that there is a burned component like a resistor or a transistor.
With the help of the service manual provided to the consumer in the time of purchase, it is possible to identify all the power transistors. While the device is on, a multimeter is utilized in determining whether there is voltage on pins of these transistors. The repairer is supposed to look for the fuse and then check it for continuity upon finding it. A fuse with appropriate specifications is supposed to be used in replacing the one which has blown out.
Once the power supply is tested and found to be working, troubleshooting proceeds to the next stage. This involves finding out whether there is any component in the other sections that is faulty. A freezer is used to spray the components, one after another, with a short burst. The system is then put on and the component that is last frozen before the device begins to function is the faulty one.
The solder holding a damaged component is melted by use of heat generated by the bit of a soldering gun. Once the solder is in liquid form, a nose pliers is applied in pulling off the pins of the component. This supposed to be accomplished within a very short period of time as solder solidifies quickly once the heat source is withdrawn. The PCB is detached and the holes where the element was attached cleaned using a solder wick.
The technician uses the manual to identify the component so that he replaces it with its equivalent. The position as well as orientation of the element should be maintained and the pins should always be straight. A side cutter is supposed to be used in trimming the excess pins once the solder has been applied.
Once replacing a spoiled component is finished, the board is fastened back to its position. The device is then plugged in and the power turned on. If the system is confirmed to be working as required, the power is put off and the covers replaced.
Since amplification systems are constructed in a relatively simple manner, it is possible to identify the problem leading to the failure. A technician will follow certain steps at the time of executing the repair. The process begins with unplugging the faulty system and placing it on a suitable table.
A screwdriver is applied in loosening the side and top covers of the appliance. Once all components are visible, technicians normally look if there are components which are burned before they embark on sophisticated troubleshooting procedures. If the system had just failed, an odor will suggest that there is a burned component like a resistor or a transistor.
With the help of the service manual provided to the consumer in the time of purchase, it is possible to identify all the power transistors. While the device is on, a multimeter is utilized in determining whether there is voltage on pins of these transistors. The repairer is supposed to look for the fuse and then check it for continuity upon finding it. A fuse with appropriate specifications is supposed to be used in replacing the one which has blown out.
Once the power supply is tested and found to be working, troubleshooting proceeds to the next stage. This involves finding out whether there is any component in the other sections that is faulty. A freezer is used to spray the components, one after another, with a short burst. The system is then put on and the component that is last frozen before the device begins to function is the faulty one.
The solder holding a damaged component is melted by use of heat generated by the bit of a soldering gun. Once the solder is in liquid form, a nose pliers is applied in pulling off the pins of the component. This supposed to be accomplished within a very short period of time as solder solidifies quickly once the heat source is withdrawn. The PCB is detached and the holes where the element was attached cleaned using a solder wick.
The technician uses the manual to identify the component so that he replaces it with its equivalent. The position as well as orientation of the element should be maintained and the pins should always be straight. A side cutter is supposed to be used in trimming the excess pins once the solder has been applied.
Once replacing a spoiled component is finished, the board is fastened back to its position. The device is then plugged in and the power turned on. If the system is confirmed to be working as required, the power is put off and the covers replaced.
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