How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Daniel Your Own Question

Daniel
Daniel, Electrical Engineer
Category: Consumer Electronics
Satisfied Customers: 7897
Experience:  BSEE (Electrical Engineer), 10+ years electronic design experience ,chip, board, component expert
47322625
Type Your Consumer Electronics Question Here...
Daniel is online now
A new question is answered every 9 seconds

I have white spots on my Samsung DLP TV. Can you identify

Resolved Question:

I have white spots on my Samsung DLP TV. Can you identify the problem and suggest a solution.
Submitted: 5 years ago.
Category: Consumer Electronics
Expert:  Daniel replied 5 years ago.

Hi there happy to help.

 

Can you tell me when you first noticed this and if there appear to be anymore spots appearing over time?

 

Let me know,

 

Customer: replied 5 years ago.
We notice a single spot in the left upper corner of the screen about three days ago. Yesterday two more appeared in that vicinity for a total of three spots.
Expert:  Daniel replied 5 years ago.

OK,

 

Unfortunatelty what is happening here is the DMD (digital micro mirror device) chip is failing on your TV.

 

As long as the dots are stationary and increasing in number, this is the issue 9 times out of 10.

 

This is the chip that Texas Instruments came out with years ago with the "tiny mirrors" that is the center of the light engine in DLP TVs.

 

For most people this chip and related board turns out to be so expensive to repair/replace that they either live with the TV until it becomes unbearable, or just go shopping for a new TV right away.

 

Complete diagnoses of all failing components and replacement will run you 600+ on this.

 

Here's an example why, the DMD chip to be replaced is over $200 just for the part.

 

http://www.findparts4you.com/store/p/321-4719-001981-DLP-Chip-Board-pins-on-bottom-.aspx

 

For not much more, they are selling 46" LCDs, here's an example........

 

http://www.amazon.com/VIZIO-M470NV-47-Inch-Internet-Application/dp/B003GDKP30

 

Hope this helps,

 

If this answer helped you please click the ACCEPT button.

 

 

 

 

Daniel, Electrical Engineer
Satisfied Customers: 7897
Experience: BSEE (Electrical Engineer), 10+ years electronic design experience ,chip, board, component expert
Daniel and 3 other Consumer Electronics Specialists are ready to help you