Part Type: Backlight Inverter Inverter Board Power Supply Unit TV Symptoms: Screen flashes with good picture but sound OK DEAD SET Blown Fuse Will not turn on Part Number: BN44-00198A Part Usage: LCD MFR Part Number 1: Samsung BN44-00198A Board Number(s): SIP40D Substitute Parts: BN44-00199A BN44-00197A Known Models: SAMSUNG LN40B530P7NXZA LN40A650A1FXZA LN40A630M1FXZA LN40A550P3FXZA LN40A450C1DXZA LN40A750R1FXZA