MAMEWorld Forums - Hardware - HELP NEEDED ... lost sound on mame arcade cocktail table

Hi everyone
I new to this forum
So hope I've posted this in the correct section
But been playing around with mame since the year 2000 ish
And love arcade gaming ..
I recently purchased a mame cocktail table
That wasn't working for £200
I knew there could be much wrong with it
As it only consists of a pc, hdd , crt monitor and a iPac board
The pc mobile is screwed to the base and looks
like it's from around 1999 ish +\-
I first put the hdd in my old pc and mame booted straight up
To cut a long story short I just reset the bios by moving the jumper to
Bios reset , and put on a new 3v bios battery and viola working fine
I have issues inserting credits , I have to connect a keyboard and do it via that way and reprogram it
When I turn off the pc . It doesn't remember what button I've allocated to ..
I don't know if this is related to it but was pressing loads of keys on keyboards then I lost sound .. the sound is at 0db which is the loudest
If I turn down it goes to minus db ..
The hdd is the pc looks like it's only 4gb ide drive
Sound card is a sound blaster ..
It was working fine for about a month or so
But now no sound so looks like it's needs re-installing
There is no windows OS on the hdd ..
it looks like it boots straight to dos as it boots with 5 seconds
I do get an error message while booting up about the sound card
I'm not at home so can't look at the min , but will post it once I'm back home
Can somebody please help me in advice on re-installing the sound card within dos ...
I will also post the version of mame once I put the hdd back on my other pc
As a slave drive ...
any help will be appreciated
Cheers Scott