Eliminate Mitsubishi WD-73737 white dots with a new 4719-001997 DLP Chip

Mitsubishi WD-73737 with a new 4719-001997 DLP Chip Are those annoying white dots showing up on your Mitsubishi  WD-73737 screen? Replace the  4719-001997 DLP Chip

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-57733WD-57734WD-57833WD-60638WD-60733,WD-60735WD-60737,WD-60738WD-60833WD-60837WD-60C8,WD-60C9WD-65638,WD-65731WD-65733,WD-65734WD-65735, WD-65736WD-65737WD-65738,WD-65833,WD-65835,WD-65837WD-65838,WD-65C8,WD-65C9WD-73638WD-73640WD-73642WD-73733WD-73734WD-73735WD-73736,WD-73737WD-73738WD-73833WD-73835,WD-73837,WD-73838WD-73840WD-73C11WD-73C8WD-73C9WD-75837WD-82737WD-82738, WD-82838WD-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

replace 4719-001997 DLP Chip Mitsubishi WD-73737 RPTV

Step 1

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 2

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 3

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 4

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 5

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

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.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 7

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 8

Step 8: Disconnect the cables connecting the color wheel.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 9

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 10

Step 10: Remove the cooling unit.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 11

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 12

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 13

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

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.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

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.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 16

Step 16: Put the terminal back into its holder.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 17

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 18

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 19

Step 19: Put the fan unit back on.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 20

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 21

Step 21: Reconnect the cables connecting the color wheel.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 22

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 23

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 24

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

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.

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 26

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

replace 4719-001997 DLP Chip in the Mitsubishi WD-73737 RPTV

Step 27

Step 27: Tighten all the screws on the back panel. Enjoy your crisp, clear picture on your Mitsubishi WD-73737 RPTV.

Learn more about your Mitsubishi WD-73737 RPTV:

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

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7 comments on “Eliminate Mitsubishi WD-73737 white dots with a new 4719-001997 DLP Chip
  1. avatar James says:

    The reason the DLP chip fails is it overheats.
    It’s got a 180W lamp shining on it, and when the gray heatsink tape dries out, the DLP cooks.
    You need to scrape the gray heatsink tape off the heatsink with your fingernail, wipe and clean the heatsink and DLP surfaces with 91% rubbing alchohol. Apply quality heatsink compound such as Aavid Thermalcote I to both heatsink and DLP surfaces. Do not cinch down the heatsink screws. Back them off a little so the springs do their job and allow the heatsink to float and lay flat against the DLP.

    I think following the instructions above without using new heatsink grease will result in white dot failure again. Mitsubishi cheaped out on the heatsink grease, and all these sets are failing.

  2. avatar fishydude says:

    A couple of technical errors.

    Dissipative gloves, rather than plastic gloves, are recommended. Plastic gloves build electrostatic charge. The gloves shown are the typical black dissipative gloves.

    Step 15. I believe you meant to write “sensitive to electrostatic discharge” not antistatic. 🙂

    Just ordered a replacement board. These instructions will make the swap very easy. 10-Q

    • avatar Shelagh McNally says:

      Hey fishydude!
      Thanks for the corrections. They’ve been put into the blog. Glad the instructions helped.
      Cheers,
      the fixyourdlp Team

  3. avatar Cindy says:

    We changed out the chip and it’s not the same as the one that was in there. The new one has a smaller window and it shows a very small screen in the middle of our screen.

    • avatar Shelagh McNally says:

      Hi Cindy,
      Did you check the serial number on the chip? It should be the chip created for the Mitsubishi WD73737. Did you buy from an OEM manufacturer? Texas Instrument may have continued upgrading and so the chip is different. Can you call the vendor and request another one?
      Regards,
      Shelagh

  4. avatar Michelle says:

    Thanks so much for this tutorial! You saved my unit from the garbage. I followed your instructions along with James (replacing the heatsink)…total cost, $271.00!! (new DLP chip, 178.00 (ebay), new bulb 59.99 (ebay), some DustOff 3 cans 17.99 (ebay) and a DLP kit (included the heatsink) 14.99 (amazon). Your instructions and photos were perfect…My unit inside was a slight bit different but not anything this old mom couldn’t figure out! You saved me a ton of money! I’m very grateful!! Thanks Again!

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