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 Pete Your Own Question
Pete, Electronic Engineer
Category: TV
Satisfied Customers: 17622
Experience:  Over 16 years of experience installing and repairing electronics.
Type Your TV Question Here...
Pete is online now
A new question is answered every 9 seconds

I have a Sanyo DP46840 that was given to my by neighbor. I

Customer Question

Hi Jack, I have a Sanyo DP46840 that was given to my by neighbor. I replaced the TCON and inverter board so far. The lines are all gone, but the screen still has a dark area in the center and goes blank for about 2 seconds every minute or so. Does this sound like the main board?
Submitted: 2 years ago.
Category: TV
Expert:  Pete replied 2 years ago.


This is likely caused by a fault with the power supply board - the board will have part number 1AV4U20C38800 or similar.

Try replacing it and let me know if that resolves the problem.