TANDY 1000 SL (250-1401) Settings Faxback Doc. # 1262 Note: Refer to Faxback Doc. # 1354 for Main Logic Board Layout. E1-E2 Microphone * (default) Microphone/Line Audio Jumper E2-E3 Line-audio output Note: This jumper is located on the audio control satellite board. E2 - E3 IRQ 5 on bus (default) Video Interrupt Jumper. E3 - E4 IRQ 5 set for Video Sync These are user selectable jumper locations.