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iMac Intel 21.5" EMC 2308 LED Driver Board Replacement

Giriş

Use this guide to replace a broken LED driver board.

Neye ihtiyacın var

  1. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement, Glass Panel: adım 1, 2 resimden 1. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement, Glass Panel: adım 1, 2 resimden 2.
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    • Before beginning, unplug your iMac and lay it on a soft surface as shown.

    • Stick a suction cup near each of the two top corners of the glass panel.

    • To attach the suction cups we sell, first position the suction cup with the movable handle parallel to the face of the glass panel. While lightly holding the suction cup against the glass, raise the movable handle until it is parallel with the other handle.

    • If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a mild solvent.

    Düzenle

  2. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 2, 2 resimden 1. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 2, 2 resimden 2.

    • Gently lift the glass panel perpendicular to the face of the LCD enough to clear the steel mounting pins attached along the underside of the top edge of the glass panel.

    • Pull the glass panel away from the lower edge of the iMac and carefully set it aside.

    • During reinstallation, be sure to meticulously clean the inside of the glass panel and the face of the LCD as any dust or fingerprints trapped inside will be annoyingly visible when the machine is turned on.

    Düzenle

  3. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement, Display: adım 3, 3 resimden 1. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement, Display: adım 3, 3 resimden 2. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement, Display: adım 3, 3 resimden 3.

    • Remove the eight 8 mm T10 Torx screws securing the display to the outer case.

    • The last two pictures are detail shots of each side of the display.

    Düzenle

  4. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 4, 1 resimden 1.

    • Slightly lift the top edge of the display out of the outer case.

    • Do not lift it too much. There are several cables attaching the display to the logic board.

    Düzenle

  6. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 5, 3 resimden 1. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 5, 3 resimden 2. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 5, 3 resimden 3.

    • Pull the vertical sync ribbon cable out of its socket on the LED driver board near the top left corner of your iMac.

    • The vertical sync ribbon cable has a ZIF style end, but the socket has no lock or retaining flap. Simply pull the cable away from its socket toward the optical drive side of the iMac to disconnect it from the LED driver board.

    Düzenle

  7. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 6, 3 resimden 1. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 6, 3 resimden 2. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 6, 3 resimden 3.

    • Rotate the display out of the outer case enough to disconnect the LED backlight power cable from the LED driver board.

    • Disconnect the LED backlight power cable by depressing the locking mechanism while pulling the connector away from its socket (toward the bottom edge of the iMac).

    Düzenle

  8. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 7, 1 resimden 1.

    • Squeeze the two display data cable connector arms together to unlock it from its socket on the logic board.

    • Pull the display data cable connector away from its socket on the logic board.

    • Be careful when disconnecting and reconnecting this cable, as it is easily damaged.

    Düzenle

  9. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 8, 1 resimden 1.

    • Disconnect the LCD thermal sensor cable connector from its socket on the logic board.

    • If your fan is spinning full speed after completion, check this connection or the hard drive's thermal sensor cable.

    Düzenle

  10. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 9, 1 resimden 1.

    • Carefully pull the display toward the top edge of your iMac and lift it out of the outer case, minding any cables that may get caught.

    Düzenle

  11. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement, LED Driver Board: adım 10, 1 resimden 1.

    • Remove the two 9 mm T10 Torx screws securing the LED driver board to the outer case.

    Düzenle

  12. iMac Intel 21.5" EMC 2308 LED Driver Board Replacement: adım 11, 1 resimden 1.

    • Lift the LED driver board out of its recess in the outer case, minding the DC-In cable still attaching it to the power supply.

    • Disconnect the DC-In cable by depressing the locking mechanism while pulling the connector away from its socket on the LED driver board.

    Düzenle
Sonuç

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

2 farklı kişi bu kılavuzu tamamladı.

6Kılavuz Yorumları

How does someone tests to see if a LED Driver Board is broken or not?

chilbig - Yanıt

Same question as above, how to check if it's power board or LED driver board that is damaged?

clovisonofri - Yanıt

It might not be a complete answer but I had to change my LED Driver Board when my display went black ( as if the computer was in sleep mode ) as soon as the computer was on. I had to push the power button to get the screen back multiple time. There was also a problem with the graphic card but even after changing the GC, the screen would go black. We figure it was the LED Driver Board when we realized the computer wouldn’t show anything on an external monitor. Hope it helps :)

Mary - Yanıt

I have the same problem Mary. The imac starts but no screen and i need to shut down/turn on a few times until i see the normal screen. Very ocassionally the screen blinks too or turns to black and i can only see stuff by flashing a light to the LCD. Where did you buy the LED Driver Board?? Can’t find it anywhere..

André Lopes -

ilelectronics in eBay

Alex Vou - Yanıt

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