This is a REPAIR SERVICE for your not working Toshiba Main Board. Green light blinks 3 times. Tv turns on but no picture or sound. After purchasing the REPAIR SERVICE we will send you the address and other contact information. Please send us your not working main board and we will test it, repair it, test it again then send it back to you.Please package your board appropriately. The item "Toshiba Main Board REPAIR SERVICE 42SL417u 46SL417u 55SL417u" is in sale since Wednesday, April 17, 2019. This item is in the category "Specialty Services\Restoration & Repair\Electronics". The seller is "mcltvrepair2" and is located in Katy, Texas. This item can be shipped to United States.