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Dell SP2208WFT Capacitor Replacement

简介

Symptoms that lead to replacement: The screen turns on and off immediately.

A recurring failure on many flat screens of all brands...

The 330uf35v105° capacitors are located too close to the heatsinks, so they blow out.

I suggest you replace them with more resistant little brothers, the 330uf35v135°

你所需要的

  1. Dell SP2208WFT Capacitor Replacement, Capacitors: 步骤 1 中的图像 1，2 Dell SP2208WFT Capacitor Replacement, Capacitors: 步骤 1 中的图像 2，2

    • Take 6 capacitors 330uf35v135°

    • Pay attention to the height: 20mm maximum.

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  2. Dell SP2208WFT Capacitor Replacement, Tools: 步骤 2 中的图像 1，1

    • You will need all the tools in the pictures:

    • Flat screwdriver, one large and one smaller

    • Phillips screwdriver, one large and one smaller

    • Small tip precision soldering iron

    • Tin

    • Small cutting pliers

    • A desoldering pump

    • Patience...

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  3. Dell SP2208WFT Capacitor Replacement: 步骤 3 中的图像 1，1

    • The shell of the screen consists in appearance of 4 parts the GRAY FRONT, clipped to a BLACK CONTOUR which is itself fixed to the BACK COVER from the inside and the FOOT or support according to your installation

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  4. Dell SP2208WFT Capacitor Replacement: 步骤 4 中的图像 1，1

    • Unclip the front panel from the black outline, the easiest way is to start near a corner using the small flat screwdriver.

    • Be careful it's plastic, fragile...

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  5. Dell SP2208WFT Capacitor Replacement: 步骤 5 中的图像 1，1

    • Once the front panel has been unclipped slightly, you can use the largest flat screwdriver to separate the rest of the black outline front panel, while remaining vigilant so as not to make too many opening marks, and above all not to break the fasteners.

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  6. Dell SP2208WFT Capacitor Replacement: 步骤 6 中的图像 1，2 Dell SP2208WFT Capacitor Replacement: 步骤 6 中的图像 2，2

    • The front panel is now completely unclipped, put the screen (screen side) against the table, being careful not to re-clip the front panel, then remove the support/stand from the screen.

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  7. Dell SP2208WFT Capacitor Replacement: 步骤 7 中的图像 1，1

    • Under the fixing of the support you discover 4 large black screws. Take your big Phillips screwdriver and unscrew them. You can now remove the back cover.

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  9. Dell SP2208WFT Capacitor Replacement: 步骤 8 中的图像 1，2 Dell SP2208WFT Capacitor Replacement: 步骤 8 中的图像 2，2

    • Disconnect the various connectors, take the small Phillips screwdriver, remove the webcam and disconnect it.

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  10. Dell SP2208WFT Capacitor Replacement: 步骤 9 中的图像 1，3 Dell SP2208WFT Capacitor Replacement: 步骤 9 中的图像 2，3 Dell SP2208WFT Capacitor Replacement: 步骤 9 中的图像 3，3

    • Disconnect the USB hub, the cable and the other connector of the webcam cable.

    • You also have four other connectors to disconnect located on the top and bottom right as in the photo.

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  11. Dell SP2208WFT Capacitor Replacement: 步骤 10 中的图像 1，2 Dell SP2208WFT Capacitor Replacement: 步骤 10 中的图像 2，2

    • Remove the screws from the power socket of the HDMI, VGA and DVI ports if there are any.

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  12. Dell SP2208WFT Capacitor Replacement: 步骤 11 中的图像 1，2 Dell SP2208WFT Capacitor Replacement: 步骤 11 中的图像 2，2

    • On each side, on the side of the screen, you have 2 screws, or 4 in total, remove them.

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  13. Dell SP2208WFT Capacitor Replacement, Disconnect the screen cable: 步骤 12 中的图像 1，1

    • The most delicate part of the repair arrives. You are going to disconnect the most fragile tablecloth from the screen.

    • Please note that you are not entitled to error, if the video cable slot breaks the screen will then be unrecoverable.

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  14. Dell SP2208WFT Capacitor Replacement: 步骤 13 中的图像 1，2 Dell SP2208WFT Capacitor Replacement: 步骤 13 中的图像 2，2

    • Between the metal cover and the screen, the video cable must be disconnected. Press on each side of the tablecloth towards the center of the tablecloth, and push down the screen to remove the tablecloth.

    • You won't get it right the first time, take your time.

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  15. Dell SP2208WFT Capacitor Replacement, Removing the metal display cover: 步骤 14 中的图像 1，2 Dell SP2208WFT Capacitor Replacement, Removing the metal display cover: 步骤 14 中的图像 2，2

    • Once the tablecloth is disconnected, you can remove the metal cover from the screen. Well done the hardest part is done...

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  16. Dell SP2208WFT Capacitor Replacement, Removal of the first electronic card: 步骤 15 中的图像 1，1

    • Take the metal cover.

    • Remove the 4 screws from the smaller of the 2 electronic cards (video card).

    • Unplug the only connected slot.

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  17. Dell SP2208WFT Capacitor Replacement, Removing the second electronic board: 步骤 16 中的图像 1，1

    • You can now remove the screws from the other electronic board (power board)

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    • First, you must IDENTIFY the faulty capacitors... How? In this specific case, nothing could be simpler, since the capacitor was subjected to a temperature exceeding 105°C inside the screen, it burst.

    • When the screen is on for several hours, the cards are poorly ventilated with the fact that these capacitors are placed next to or too close to a heat sink. But be careful, this is not a general rule for testing a capacitor.

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  19. Dell SP2208WFT Capacitor Replacement: 步骤 18 中的图像 1，3 Dell SP2208WFT Capacitor Replacement: 步骤 18 中的图像 2，3 Dell SP2208WFT Capacitor Replacement: 步骤 18 中的图像 3，3

    • If the top of the capacitor is not flat, it is bad. Example in photo circled in red.

    • the functional capacitor is in green circles.

    • the heat sinks are in the yellow circles.

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  20. Dell SP2208WFT Capacitor Replacement: 步骤 19 中的图像 1，1

    • Take the time to observe your card, locate the capacitors on the rounded top, with a marker, and their polarity, even if the polarity is written on the card at Dell, not all manufacturers are as friendly...

    • Identification before dismantling is a good habit to adopt so as not to have any unpleasant surprises when reassembling.

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  21. Dell SP2208WFT Capacitor Replacement, Reassembly: 步骤 20 中的图像 1，1

    • Once the 6 capacitors have been changed, you can screw the power board back on and follow the tutorial in reverse...

    • Be careful, do not forget to reconnect everything.

    • I hope you and your Dell SP2208wft live long. Don't Throw Away, Fix!!! You can do it !!!

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结论

To reassemble your device, follow the instructions in reverse order.

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Tim

于01/12/17注册

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