Part Type X-Main Board XSUS Board X-Sustain SS Board Part Number TNPA3544 MFR Part Number 1 Panasonic TNPA3544 Substitute Parts TNPA3544AC Known Models MAXENT MX-42EPM20 PANASONIC TH-42PD50 TH-42PD50U TH-42PM50U TH-42PW8UK TH-42PW8UKJ TH-42PWD8GKJ TH-42PWD8GSJ TH-42PWD8UK Panel Manufacturer Panasonic