fix "chuff" sound?(lionel)

[Anonymous]

hello, i recently aquirred a lionel "sounds of steam " set,the "chuff" sound isnt working,i checked the wire(s) ,etc. all it does is make buzzing/clicking sounds,the set is 70/80's? i am new to the lionel scale.(i had couple HO sets when i was younger,lol),i took apart the coal tender there is a circuit board with a little speaker,can i fix this myself?is there a fix? can i purchase a replacement board? i am experienced at electronics and soldering.any info would be great.i want to get this working so i can get it under the tree..[:)](moderators if this post is in wrong forum? could you place it in the right forum) thanx!!!