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Ubiquiti 48 port switch (US 48 G1) power supply replacement

Cosa ti serve

  1. Ubiquiti 48 port switch (US 48 G1) power supply replacement, Open the Switch: passo 1, immagine 1 di 1
    • Identify the four screws (two at the back, two at the bottom) holding the switch closed. One is hidden behind a sticker.

    • You do not need to remove the rack brackets

    • Use a PZ2 screwdriver to remove the screws

    • Slide the lid a short distance towards the front to open the switch.

  2. Ubiquiti 48 port switch (US 48 G1) power supply replacement, Identify the broken power supply: passo 2, immagine 1 di 3 Ubiquiti 48 port switch (US 48 G1) power supply replacement, Identify the broken power supply: passo 2, immagine 2 di 3 Ubiquiti 48 port switch (US 48 G1) power supply replacement, Identify the broken power supply: passo 2, immagine 3 di 3
    • Identify the power supply. It is the yellow separate board at the bottom.

    • There may be burn marks on the power supply from the failure.

    • Remove it from the switch (4 screws, PZ2)

    • Save the power supply and screws. You will need them later.

  3. Ubiquiti 48 port switch (US 48 G1) power supply replacement, Ready the replacement power supply: passo 3, immagine 1 di 2 Ubiquiti 48 port switch (US 48 G1) power supply replacement, Ready the replacement power supply: passo 3, immagine 2 di 2
    • Unbox the replacement Powersupply

    • Unscrew the two screws at the front, and the two at the back to remove the top metal screen

    • Finally removed the two back screws to free the board from the bottom metal screen

  4. Ubiquiti 48 port switch (US 48 G1) power supply replacement, Install new power supply: passo 4, immagine 1 di 1
    • Insert the replacement Powersupply in the switch, and secure it with the original 4 screws

    • Dimensions of the replacement power supply should be identical to the original one.

    • The main power connector should fit on the new power supply.

  5. Ubiquiti 48 port switch (US 48 G1) power supply replacement, Connect the 24V leads: passo 5, immagine 1 di 1
    • Unsolder the 24v leads from the old power supply.

    • Identify the positive and negative output on the new power supply. On this one, positive is at the bottom of the picture.

    • Solder in the 24v leads on the new power supply

    • Solder in the blue (+) lead on the bottom of the output connector

    • Solder in the black (-) lead on the top of the output connector

    • Alternatively, get a proper connector that fits on the power supply.

    • Finally, connect the 24V on the main board

Conclusione

To reassemble your device, close the lid and secure the four screws.

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