Why? If the sound board makes all the sounds when you test it, then likely it's not a problem on the sound board.
Well - I mounted the soundboard from my Black Knight in the JL and when starting the game, I got a lot of BK speak, so I thought that the sounds are triggered correct from driverboard.
Also tried the JL soundboard in BK and still not much sound.
The soundboard in the jungle lord is a mess - a previous owner has resoldered all (I mean all) solderpoints and used way to much solder and even installed all roms etc direct in the sound and speak board without sockets! (omg)
So I cant swap roms and test for sure that the problem is soundboard or driver.
(Luckily the guy didnt touch the other boards in the game
Meanwhile I did some more testing!
programmed a new eprom for the sound board and tested the BK soundboard in the JL with the JL speakboard - still only "fight.." and "Can.." when I start a new game - apparently the soundboard is not it.
Then I installed the BK soundboard with JL rom and JL speakboard in my black knight with JL gameroms.(Easier than removing mpu and driver boards - did remove coil connectors)
Still the same.
Guess that means that the driverboard is not it and that the speakboard is probably the gulity one.
Next step is to try the BK speakboard with JL speakroms, but I cant program 2532 and the original are soldered direct into the board.
I'll can make some 2532 to 2732 adapters and try that.
I'll get back