Labels:text | screenshot | diagram OCR: 8-BIT STEREO/MONO SOUND OUTPUT FROM YOUR PARALLEL PORT THIS DESIGN BY DAVE BOYD (Version 1.56) Addition to VL00 board that adds support for the other Stereo-on-L format Refor to the README.IST For information regarding the use of the schematic, INPUT DB25 CONNECTOR PIN IE 5 V+ 10 OUTPUT DB25 CONNECTOR 1 0.001 UF PIN # 10 1/6 74HCT04 00047 uF 14 14 VI.00 Mode VI.50 Mode OF DT Sutch 2 5 11 25 25 FROM PARALLEL PORT TO VI.56 SOUND BOARD Note 9: All I.C.'s must have a, . 1 uf decoupling capacitor connected across their power and GND pins. lote 1: Pin 14 on the 74HCT04 should be connected to 5 V+. Pin 7 should be comected to ground. Note 2: Pinc 9, 11, and 13 OF the 74HCT04 Should ba connected to ground. Note 3: PinE 2 through 9 on the DB25's run straight through without any internal connection.
