I have worked out most the the sound problems on my Elektra Squawk and Talk board but one. First let me say, someone in the recent past did some work on this board (new caps, looks like new eproms and new U16) not bad work. Was missing all sounds intermittently, that was a bad fuse on power board for the GI lighting. Problem: Missing some phrases (speech) maybe two or three not sure. When I push the test button on the ST board I hear one phrase that is missing. Now I did a lot of reading and checking, man is there some deep info out there. I don't have a lot of high tech tools, no scope, just a volt meter so please keep that in mind. This board may not be the original board and because of the work done on it, I am thinking "jumpers". I am finding mixed info out there. I found a site that says if speech is required install J and remove H I have H jumped and not J. then another site says make these jumps for: Elektra C, E, G, Q, S, U, W, Y, BB, D, H, DD, N, EE, and L or K also found all the EE jumpers are cut but that may because the board has a ay-3-8912 chip in U12 because one site says: If U12 is present, remove EE jumpers (5 of them) if not present install EE jumpers (5 of them). Board sounds great, I think all background sounds are there and most speech is there, just missing a few. Is it possible that Elektra should have both the EE jumpers and an ay-3-8912 chip in U12 and what about jumpers J and H? Yes, self test button # 18 is on 3 and yes, Mpu sw #30 is on. Now that I said that, that is one of the phrases that is missing: "Prepare for the Gamma Dimension" Not doing a thing till I hear back. Oh, I have a Alltek MPU Thanks