T-con board LCD Controller M$35-D026047 V400H1-C03 Package Included: 1 x V400H1-C03 Logic Board Known compatible model: SAMSUNG LCD TV LA40A550P1R LCD Controller T-con V400H1-C03 Proscan LCD TV 40LD45Q LCD Controller T-con V400H1-C01 Proscan LCD TV 40LD45Q LCD Controller T-con V400H1-C03 We test it before delivery to make sure it's working perfect.