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.
Most amplification systems are easy to troubleshoot as they are constructed such that it is possible to view all components once the covers are removed. Several steps are followed when undertaking repair for an audio system. The first one normally involves removing the device form its position and placing it on a table.
Screw driver is utilized in loosening the covers so that they can be removed. Complicated methods of troubleshooting are applied once the technician cannot identify any burnt component using his eyes. An odor will be noticed if there is a burned transistor and the system is opened immediately it stops operating.
All power transistors in the system can be identified by use of the service manual obtained from the manufacturer. The power button is put on and a multimeter applied in determining if there is voltage on the pins of these transistors. The rest of the power ICs need to be identified and the same test done on them. The fuse will be tested for continuity and if found to be blown, replacement with a suitable one will be done.
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.
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supposed to be accomplished within a very short period of time as solder solidifies quickly once the heat source is withdrawn.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 component removed is identified and replaced with the appropriate one as stated in the service manual. Then new element is supposed to be soldered in the same orientation and position as the earlier one. The repairer should be keen that he does not apply too much solder such that the pins short.
The circuit board can be fixed back to its position once the spoiled component is replaced. The power button of the device is switched on to test the system. After the system is found to be functional, the power is switched off and the casing replaced.
Most amplification systems are easy to troubleshoot as they are constructed such that it is possible to view all components once the covers are removed. Several steps are followed when undertaking repair for an audio system. The first one normally involves removing the device form its position and placing it on a table.
Screw driver is utilized in loosening the covers so that they can be removed. Complicated methods of troubleshooting are applied once the technician cannot identify any burnt component using his eyes. An odor will be noticed if there is a burned transistor and the system is opened immediately it stops operating.
All power transistors in the system can be identified by use of the service manual obtained from the manufacturer. The power button is put on and a multimeter applied in determining if there is voltage on the pins of these transistors. The rest of the power ICs need to be identified and the same test done on them. The fuse will be tested for continuity and if found to be blown, replacement with a suitable one will be done.
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.
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 component removed is identified and replaced with the appropriate one as stated in the service manual. Then new element is supposed to be soldered in the same orientation and position as the earlier one. The repairer should be keen that he does not apply too much solder such that the pins short.
The circuit board can be fixed back to its position once the spoiled component is replaced. The power button of the device is switched on to test the system. After the system is found to be functional, the power is switched off and the casing replaced.
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