Westinghouse 32" Smart TV (Model: WD32HBR105) . Originally stuck on logo with no response from remote and no firmware file available to flash via USB. Westinghouse Support stated it would require service but that wasn't a cost effective option. I used dental floss to remove the motherboard processor heatsink to identify what make it was (Mstar). Unfortunately that knowledge didn't help with a solution. After the heatsink removal it only displayed a completely white screen. I then decided to replace the motherboard with a universal 3-in-1 board but the white screen problem continued. This indicated to me that the LCD buffer board (tconless design) got damaged by the heatsink removal.
I have attached a TXT file of buffer board test point voltages. Does anyone see anything in the data which would explain the white screen?
I have attached a TXT file of buffer board test point voltages. Does anyone see anything in the data which would explain the white screen?