Replace the 4719-001997 DLP chip to fix white dots on your Mitsubishi WD-73642 screen
The white spots on your Mitsubishi WD-73642 are caused by the 4719-001997 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.
- 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: Put on the plastic gloves. Loosen all the screws found on the back panel.
Step 2: Put the screws to the side. Gently remove the back panel.
Step 3: Remove the 3 screws holding the lamp engine in place.
Step 4: Disconnect all the connectors. Important: don’t yank any cables.
Step 5: Carefully slide the light engine from the cabinet.
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: Carefully disconnect the cable between the terminal board and lamp.
Step 8: Disconnect the cables connecting the color wheel.
Step 9: Loosen the 3 screws holding the cooling unit/fan to the terminal board.
Step 10: Remove the cooling unit.
Step 11: Loosen the 2 screws holding the terminal cover in place. (Good time to dust this section).
Step 12: Loosen the 10 screws holding the terminal in place.
Step 13: Carefully pop the terminal out of its holder.
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: 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: Put the terminal back into its holder.
Step 17: Tighten the 10 screws holding the terminal in place.
Step 18: Tighten the 2 screws on terminal board’s cover.
Step 19: Put the fan unit back on.
Step 20: Tighten the 3 screws holding the cooling unit/fan to the terminal board.
Step 21: Reconnect the cables connecting the color wheel.
Step 22: Reconnect the cable between the terminal board and lamp.
Step 23: Replace the color wheel protective cover and tighten the 3 screws.
Step 24: Re-connect all the cables running from the terminal board and light engine.
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: Put the back panel back onto the TV.
Step 27: Tighten all the screws on the back panel. Enjoy your crisp, clear picture on your Mitsubishi WD-73642 RPTV.
Need to replace the Mitsubishi WD-73642 RPTV lamp? Check out our tutorial.
Learn more about your Mitsubishi WD-73642 RPTV: