VIZIO E421VO 3642-1232-0150 Main Board U18 EEPROM ONLY (See details below before purchase) EEPROM Chip for LCD VIZIO MAIN BOARD The eeprom you receive may be different from your original but it is a compatible replacement. All sales are FINAL and NO RETURNS will be accepted. EEPROM-E421VO-3642-1232-0150 Known Models: VIZIO E421VO