Hi Vinny! Pardon for saying but that board isn't burnt, it is eaten up by the leaking batteries. Yes, your so right, that siren is not a candidate for battery replacement. Unless you can decipher the various MB part numbers/dates, your best bet would be to buy a NEW siren manufactured within the last year or two (unless) your sure of the date of manufacture is less than 8-10 years so a possibility is there to replace its internal batteries (making sure you open the replacement before you buy batteries because chances are MS's suppliers 'modified' internals and changed the batteriy types installed). For an example see ( https://www.crossfireforum.org/forum...ent-issue.html ).


.