In a situation where the amplification mechanism is faulty, then your sound system is likely to give a poor output. The work of an amp is to raise the level of an electrical signal to a level that can be fed to the targeted output device which can be a speaker or a headset. This means if the speaker is producing a weak sound, the problem can be traced back to the amp and correction made. Amplifier repair may be required also if the output is distorted or it is not clear.
Normally, it is easy to troubleshoot amplification systems since most of them are constructed in a way that you can view all internal components and identify the faulty one. A number of steps are followed in accomplishing repair of an audio system. The first thing is to unplug the device from the wall and place it on a spacious table.
The covers of the device are removed through releasing the screws holding them in place. This enables the technician executing the task to be in a position to view all the components comprising the appliance. Before, sophisticated ways of troubleshooting are applied, the technician will use eyes to find out whether he can identify any burnt element.
Use the service manual provided by the manufacturer to identify the power transistors. While the power is on, a multimeter is used to check whether there is voltage in the pins of the transistors composing the device. The same should be done for all power ICs identified. The repairer will look for the fuse and test it for continuity.
Troubleshooting can proceed to other parts of the device if its power supply is fixed. A freezer will be used to look for presence of faulty components in the system. What happens is that all components are given a short burst and then the power put on. The last element to clear moisture is the one which is damaged.
When removing an element that is found to be spoiled, a heat gun is used to melt the solder holding it onto the board. After melting is achieved, a pliers is applied in pulling the pins from the PCB. It is required that you get the board out of its position so that you can access both sides. The holes left behind are cleaned with help of a solder wick.
Through use of the manual, it is possible to identify the component that is not working. A new one is then acquired and soldered at the same position and orientation. While inserting the pins of the element into the holes, one should be careful so that he does not bend them. Only enough solder should be applied so that the pins are not short. A side cutter is applied in clipping off the excess pins so that they do not protrude from the underside of the circuit board.
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.
Normally, it is easy to troubleshoot amplification systems since most of them are constructed in a way that you can view all internal components and identify the faulty one. A number of steps are followed in accomplishing repair of an audio system. The first thing is to unplug the device from the wall and place it on a spacious table.
The covers of the device are removed through releasing the screws holding them in place. This enables the technician executing the task to be in a position to view all the components comprising the appliance. Before, sophisticated ways of troubleshooting are applied, the technician will use eyes to find out whether he can identify any burnt element.
Use the service manual provided by the manufacturer to identify the power transistors. While the power is on, a multimeter is used to check whether there is voltage in the pins of the transistors composing the device. The same should be done for all power ICs identified. The repairer will look for the fuse and test it for continuity.
Troubleshooting can proceed to other parts of the device if its power supply is fixed. A freezer will be used to look for presence of faulty components in the system. What happens is that all components are given a short burst and then the power put on. The last element to clear moisture is the one which is damaged.
When removing an element that is found to be spoiled, a heat gun is used to melt the solder holding it onto the board. After melting is achieved, a pliers is applied in pulling the pins from the PCB. It is required that you get the board out of its position so that you can access both sides. The holes left behind are cleaned with help of a solder wick.
Through use of the manual, it is possible to identify the component that is not working. A new one is then acquired and soldered at the same position and orientation. While inserting the pins of the element into the holes, one should be careful so that he does not bend them. Only enough solder should be applied so that the pins are not short. A side cutter is applied in clipping off the excess pins so that they do not protrude from the underside of the circuit board.
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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