From: jimd@panix1.panix.com   
      
   I have gotten good at replacing Yamama sound chips, thinking that was the   
   reason the printer port was dead.   
      
   This time, there is no convenient bypass capacitor next to it to see what   
   end is plus and what is minus with the diode setting on a digital   
   voltmeter, so I connected power jumpers directly to the power and ground   
   pins of that chip, and my printer port works again.   
      
   That chip may be found in the Chips and Chips .hyp file for ST-Guide, if   
   you want to see what pin is what, and again you can confirm this with a   
   digital voltmeter (or analog, if that is what you have) between the two   
   relevant pins and the power  supply connector pins.   
      
   Depending on what you use for glue to hold things in place, it might be a   
   very good idea to line the lower case with waxed paper, just in case.   
      
   Jim   
      
      
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