External Hard (260-5127) Settings Faxback Doc. # 5531 Disk Controller Check the Hard Disk Controller board and confirm that pins E2-E3 are jumpered. (No jumper is required for pins E4-E5 and E6-E7.) 1. E2-E3 should be jumpered. 2. Verify that the cables are in properly. If they are in backwards it could cause the following problems: A-In the newer boards it will blow a pico fuse (small fuse on the board which looks like a resistor). B-In the older boards it will blow components on the controller. NOTE: This board should be installed by an authorized Radio Shack Repair Center. (SMM/jlc-03/27/94)