24 Installation Note N9038-90018Option HL4 - High Performance Digital Signal Processing UpgradeMiscellaneous IF Cable Installation57.Refer to Figure 16. Feed the end labeled “15” of W15 (8121-1919) and the end labeled “17” ofW23 (8121-1401) through the large rectangular opening (1) in the right side inner chassispanel.58.Refer to Figure 14. Connect W15 to J15 of the A3 High Performance Digital IF assembly (1).59.Connect W23 to J17 of the A3 High Performance Digital IF assembly (1).60.Refer to Figure 16. Route W15 along the top of the right side of the chassis above the inputattenuators and switches and along the front of the A15 Enhanced Front End Controlassembly.61.Refer to Figure 13. Connect the loose end of W15 (labeled “901”) to J901 of the A15 EnhancedFront End Control assembly.62.Refer to Figure 16. Route W23 under Cable Hold Down (2) and across the top of the A16Reference assembly and connect it to J726, as shown in Figure 11. There may be a connectorlabel attached to the top of the A16 Reference assembly that will need to be trimmed toexpose J726.63.Refer to Figure 13. Install W14 (8121-1862) between J7 of the A13 Front End assembly andJ902 of the A15 Enhanced Front End Control assembly. Torque the SMA connector to10 inch-lbs.Figure 16 Miscellaneous IF Cable Installation