Eliminate white dots on your Mitsubishi WD-73837 with a new 4719-001997 DLP Chip
Annoying white dots on your Mitsubishi WD-73837 screen? Replace the 4719-001997 DLP Chip
White dots, a.k.a as white death syndrome is caused by the 4719-001997 DLP Chip wearing out. 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-73837 RPTV.
Learn more about your Mitsubishi WD-73837 RPTV:
Find this new Mitsubishi/Toshiba 4719-001997 DLP Chip 1910-6143W on Amazon.
replaced chip got slanted picture, bulb blew and now tv turns on then shuts off with a noise.
no picture, picture shuts off after 5 minutes and then keeps flashing red indicator light. any answers?
Did you replace the broken bulb? Make sure you have cleaned the whole area where the lamp exploded. After changing the lamp, you will need to reset the lamp timer. If this is not set, the TV will think the lamp has run out of life and keep shutting off. The flashing red indicator light may be the warning for a lamp reaching it’s end if life. You can purchase a lamp on ebay at a reasonable price. You may also want to check the warranty on your set and see if it’s still honoured. Philips-Lamp-Housing-For-Mitsubishi-WD73837-Projection-TV-Bulb-DL: http://www.ebay.com/itm/Philips-Lamp-Housing-For-Mitsubishi-WD73837-Projection-TV-Bulb-DLP-/111648874238
Hope this helps.
Good instructions and illustrations. My only comment is with regard to: (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.)
It seems that loosening the screw is mandatory as the chip will not align correctly if the screw is not loosened before the new chip is installed since tightening the screw after installing the new chip seems to push it to one side thus aligning it. I found this out the hard way as I simply tried to push the new chip into place after removing the old one with a screwdriver. After re-assembly and testing there was an obvious problem with the screen. After troubleshooting online, I re-installed the chip this time loosening then tightening the screw and the TV now works fine.
Thanks for that tip Darrell! I will update our instructions to reflect your find.