Vizio E422VA Mainboard Replacement

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)

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

Mainboard

Power Supply / Backlight Inverter

Timing Control (T-Con) Board

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.

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

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).