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Vizio E422VA Mainboard Replacement

What you need

  1. Vizio E422VA Mainboard Replacement, Unscrew Rear Cover: step 1, image 1 of 1

    • Philips #2 screws, 15.0 mm

    • Philips #2 screws, 29.5 mm

    • Philips #2 screws, 8.0 mm

    • VESA mount points (M6, 10mm, 400mm * 200mm)

    Edit

  2. Vizio E422VA Mainboard Replacement, Remove Rear Cover: step 2, image 1 of 1

    • After all screws removed, the rear plastic cover can be lifted off.

    Edit

  4. Vizio E422VA Mainboard Replacement, Internal View: step 3, image 1 of 1

    • Mainboard

    • Power Supply / Backlight Inverter

    • Timing Control (T-Con) Board

    Edit

  5. Vizio E422VA Mainboard Replacement, Remove Connectors from Mainboard (Part 1): step 4, image 1 of 1

    • 4-pin connector to T-Con board. Depress plastic clip at left side and wiggle connector side to side slightly to remove.

    • 13-pin connector to Power Supply board. depress plastic clip at left edge and wiggle connector side to side. May need to pry up top/bottom edge with flat head screwdriver; alternate gradually.

    • 42-pin connector. Pry up with flat head screwdriver on left/right edges, alternating gradually.

    • Grounding clip. Using a poking tool, press at center to release catch and pull clip in indicated direction.

    Edit

  6. Vizio E422VA Mainboard Replacement, Remove Connectors from Mainboard (Part 2): step 5, image 1 of 1

    • 8-pin connector. Depress clip and pull connector upwards from board.

    • 10-pin connector. Depress clip and pull connector upwards from board.

    • 4-pin connector to speakers. Depress Clip and pull connector in indicated direction.

    • mounting screw. Philips #2 @ 6mm

    Edit

  7. Vizio E422VA Mainboard Replacement, Removing I/O Shield on Bottom Edge (optional): step 6, image 1 of 1

    • If your replacement board is missing the bottom I/O shield, you can remove the I/O shield from the old board by removing the marked screw (Philips #2).

    Edit
Conclusion

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

Author

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MrBadAxe

Member since: 02/06/24

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