Steps to Repair Power Supply for Beginners

Fixed power supply should not be underestimated, and it is not recommended to be done by someone who has little experience in the world of electricity. Even if a power supply has been removed from its plug. The existing components inside are still electrically tangled and are likely to give you an electric shock if you are not careful. If you are skeptical about your skill, let someone with experience of that work or if you want an easier way do not hesitate to replace your power supply.

If you decide to continue to repair your own power supply, please remember to unplug the device from its power source first. And do not wear bracelets from metal when working with power supply. If you are still confident in your ability to repair your own power supply, keep in mind that the risk is in your own hands.

Replace and open the power supply

1. To get started, before opening the power supply the first thing you need to do is unplug the power cord that is on the power supply
2. If the power supply is inside the computer, unplug all low-voltage power cables from all drivers and its motherboards.
3. Remove any removable components that are in the vicinity of the power supply. Whether it's ram, VGA and the like so as not to block the replacement process
4. Remove any screws that secure the power supply to the chassis. (Generally there are four bolts)
5. Refute the power supply, while you release the last bolt from the motherboard. This needs to be done so that the existing motherboard does not fall.
6. Then remove the power supply from the arrangement.

Determine whether the fuse is in good condition or not

1. Once the power supply frame is opened, you will be able to see all the major components inside. Fuse is normally found on one corner of the power supply and is easy to see.
2. Use an ohmmeter or multimeter to find out if the fuse is still in good condition before removing the circuit board from the power supply frame.
3. An exploding fuse will definitely show infinite value, while a good fuse will show a value of 0.1 to 10 ohms.
4. If you have determined the condition of the fuse, consider the other components on the power supply circuit board.
5. See any signs of smoke, or any burning components present in or around other components.
6. If this happens replacing a fuse not will be able to solve your power supply problem, and the only solution is to replace the new power supply.

Changing Fuse

1. If you do not find any signs of smoke, or burning components. This can mean that the problem is only on the fuse that explodes.
2. The next step will discuss how to replace the fuse to do this will depend on how to install the fuse on your power supply.
3. If the fuse buffer is a retaining spring then this fuse can be replaced easily by using a plastic fuse-puller.
4. If your fuse is soldered on your circuit board, the next step is to remove the circuit board from the power supply frame to access it from the bottom of the circuit board. Caution: Grasp the power supply circuit board with the edges, do not touch the solder part of the circuit board. Wrong pinning can cause a shock effect due to the remaining electrical voltage.
5. Prepare your solder. Check back the fuse location before you touch the pin to release it. Some manufacturers print the value of the fuse next to the circuit board, and some do not. If the value is not printed at all you have to let go of the old fuse to find out what the value is and which size to re-install.
6. Use heated solder to carefully remove the fuse from the circuit board.
7. To install the fuse directly, you must mount the same pin on the new fuse section. (Do this with caution).
8. After installing the fuse on the circuit board. Cut and clean the remnants of soldering from the fuse on the circuit board. Use the ohmmeter to check if the fuse is working properly.
9. If the fuse works well, you can reattach the circuit board, on the chassis, and close the power supply as it is on the chassis.
10. Then plug in the pc to test it.
11. If the problem that exists on the power supply is found on the fuse that explodes the previous steps will certainly solve this problem.

Advertisement

Related Content: