Mitsubishi WD57734 DLP Chip Replacement
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Replace the DLP chip in your Mitsubishi WD57734.
- Autore: David Sylvester
- Stima il tempo: 30 - 45 minuti
- Difficoltà: Moderato
This guide will detail the installation of a new DLP chip into the light engine of the TV. Replacing the chip will often remove stationary white and black spots that appear over time.
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Passo 1 — DLP Chip ¶
Disconnect the light engine power cable by holding its white tab and pulling straight back.
Disconnect the four connections above the black data connection by gently pulling the plugs out of the sockets (some of the connections have a tab that must be pressed when pulling to disconnect).
Passo 2 ¶
Disconnect lamp ballast power and data connections in front of the light engine by pressing their corresponding tabs and pulling them apart.
Release the cables from the white cable ties by twisting the white cable clasps and pulling the cables out of the clasps.
Passo 3 ¶
Loosen the two secured Phillips #00 screws securing the black data connection to the light engine.
Gently pull the black connector off the light engine.
Passo 4 ¶
Use pliers to remove the two securing bolts from above and below the data port by rotating counterclockwise.
Remove the seven 8 mm Phillips #0 screws holding the plate to the light engine board.
Gently hold each side of the metal frame and pull it straight back to reveal the board and heat sinks underneath.
Passo 5 ¶
Disconnect the last connection from the light engine by holding the white tab and pulling straight back.
Passo 6 ¶
Remove the two 15 mm Phillips #0 screws holding the DLP heat sink to the light engine board.
Passo 7 ¶
Remove the five remaining 8 mm Phillips #0 screws.
Passo 8 ¶
Carefully pull the board to expose the two cables that connect to the back of the board.
Use pliers and tweezers to disconnect the ribbon cable by pulling it straight out of its socket and the data connector by holding its tab and pulling it straight back from the board.
Replacing the ribbon cable is the hardest step when you reassemble. You'll need to align the board with the bolt holes, and using fingers or tweezers line the ribbon with the slot (which you can't see) and push fairly hard to mate the connector. This cable goes to the color wheel. Be careful not to flip it upside down.
Tip: Plugging the holes with some painter's tape may make it harder for the wires to slip into the light engine once detached.
Passo 9 ¶
Lay the board facedown on a smooth surface.
Use a small flathead screwdriver to turn the locking screw half a turn counterclockwise.
Remove DLP chip from the light engine board by pulling it straight back.