The white spots on your Mitsubishi WD-73840 are caused by the DLP chip being worn out. Known as Mitsubishi white death syndrome, this problem can be solved  by installing a new Mitsubishi/Toshiba 4719-001997 DLP Chip 1910-6143W.

Note: These instructions can also be used for the following Mitsubishi models: 
WD-57733, WD-57734, WD-57833, WD-60638, WD-60733,WD-60735, WD-60737,WD-60738, WD-60833, WD-60837, WD-60C8,WD-60C9, WD-65638,WD-65731, WD-65733,WD-65734, WD-65735, WD-65736, WD-65737, WD-65738,WD-65833,WD-65835,WD-65837, WD-65838,WD-65C8,WD-65C9, WD-73638, WD-73640, WD-73642, WD-73733, WD-73734, WD-73735, WD-73736,WD-73737, WD-73738, WD-73833, WD-73835,WD-73837,WD-73838, WD-73840, WD-73C11, WD-73C8, WD-73C9, WD-75837, WD-82737, WD-82738, WD-82838, WD-Y657 WD-C657,WD-Y577.

Find this new Mitsubishi/Toshiba 4719-001997 DLP Chip 1910-6143W on Amazon and then follow our step-by-step visual guide.

Equipment needed

• Electric Philips screwdriver
• needle nose pliers or a 5mm nut driver
• antistatic gloves OR plastic gloves used with an antistatic wrist band
• soft cloth or brush

How to replace the 4719-001997 DLP Chip

Step 1

Step 1: Put on the plastic gloves. Loosen all the screws found on the back panel.

Step 2

Step 2: Put the screws to the side. Gently remove the back panel.

Step 3

Step 3: Remove the 3 screws holding the lamp engine in place.

Step 4

Step 4: Disconnect all the connectors. Important: don’t yank any cables.

Step 5

Step 5: Carefully slide the light engine from the cabinet.

Step 6

Step 6: Remove the 3 screws holding the color wheel protective cover in it place. Avoid touching any of the optical components as this can affect the quality of your picture.

Step 7

Step 7: Carefully disconnect the cable between the terminal board and lamp.

Step 8

Step 8: Disconnect the cables connecting the color wheel.

Step 9

Step 9: Loosen the 3 screws holding the cooling unit/fan to the terminal board.

Step 10

Step 10: Remove the cooling unit.

Step 11

Step 11: Loosen the 2 screws holding the terminal cover in place. (Good time to dust this section).

Step 12

Step 12: Loosen the 10 screws holding the terminal in place.

Step 13

Step 13: Carefully pop the terminal out of its holder.

Step 14

Step 14: Unlock the old DLP Chip from the terminal. You may need to loosen the screw on the side or use a flat edged screwdriver to pop it out.

Step 15

Step 15: Place the new DLP chip into place. Handle the DMD DLP CHIP only by the edges because it is very sensitive to antistatic electricity.

Step 16

Step 16: Put the terminal back into its holder.

Step 17

Step 17: Tighten the 10 screws holding the terminal in place.

Step 18

Step 18: Tighten the 2 screws on terminal board’s cover.

Step 19

Step 19: Put the fan unit back on.

Step 20

Step 20: Tighten the 3 screws holding the cooling unit/fan to the terminal board.

Step 21

Step 21: Reconnect the cables connecting the color wheel.

Step 22

Step 22: Reconnect the cable between the terminal board and lamp.

Step 23

Step 23: Replace the color wheel protective cover and tighten the 3 screws.

Step 24

Step 24: Re-connect all the cables running from the terminal board and light engine.

Step 25

Step 25: Carefully place the light engine back inside the unit. Tighten the 3 holding the terminal board and light engine in place.

Step 26

Step 26: Put the back panel back onto the TV.

Step 27

Step 27: Tighten all the screws on the back panel. Enjoy your crisp, clear picture on your Mitsubishi WD-7384 RPTV.

Learn more about your Mitsubishi WD-7384 RPTV:

• • 7 Tips for extending RPTV lamp life
  • RPTV Troubleshooting: TV won’t turn on
  • Consumer Alert: The dangers of RPTV generic lamps

Find this new Mitsubishi/Toshiba 4719-001997 DLP Chip 1910-6143W on Amazon.

Shop on Amazon for this chip.

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