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Pete
Pete, Electronic Engineer
Category: TV
Satisfied Customers: 17028
Experience:  Over 16 years of experience installing and repairing electronics.
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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: 1 year ago.
Category: TV
Expert:  Pete replied 1 year ago.

Hi,

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.