Check the listing for details. PRE-PROGRAMMED EEPROM FOR ONN 100068378 T-Con Board # RUNTK0529FVZA. Condition: New. Listed at 10.00 USD. PRE-PROGRAMMED EEPROM FOR ONN 100068378 T-Con Board # RUNTK0529FVZA These boards can have multiple failures in addition to the EEPROM.If EEPROM replacement does not repair your board, there are likely additional problems. DOING YOUR OWN REPAIR WORK: The removal and replacement/installation of electronic components is NOT recommended if you are not experienced with electronic components. If you are new to this stuff, please take our advice and leave the work to a qualified expert- you will most likely thank yourself later. It is VERY easy to cause damage to electrical parts if repairs are not done with precision, neatness, and accuracy. It is very easy for one to make problems WORSE than they were before, if one does not know what one is doing, or does not have adequate experience with these kinds of parts and this kind of work in general.