harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400Location of IC upgrade for the AVR500/AVR7000:9) Replace DSP PC Board back into its (3) receptacle plugs atop the MAIN PCB.10) Replace all screws, braces, and any cable ties that were cut during disassembly. Before tightening thescrews, make sure all PCB’s and their RCA jacks are firmly seated in their respective holes in the rearbackplate. If using a power tool, use care and minimum effort to avoid damaging the various plasticreceptacles.11) Plug both the 22 conductor ribbon cable and the 5 conductor molex cable back into their receptacles.12) Replace the top cover and optical plugs.13) Test unit by powering up the receiver and playing a music source in the Logic 7 mode.AVR7000 ONLY: MODIFICATION OF THE DSP BOARD (replace IC101 AT27LV020A)WARNING: FOLLOW PROPER STATIC CONTROL PROCEDURES and use caution during the installation ofnew IC101 to prevent damage.1) Remove the top cover, (16) Black Phillips screws at the sides and rear of the unit.2) Locate the DSP PC Board and IC101 with the illustrations above.3) Unsolder IC101 AT27LV020A and replace with hk part# 55172540AVR7000. See illustration above forlocation on PCB.4) Replace top cover and all Phillips screws.5) Test unit by powering up the receiver and playing a music source in the Logic 7 mode.Model Serial Number120VSerial Number230V RDS STATUS ACTIONAVR7000TH0003-01000ToTH0003-05222Modified by factory Noise in Logic 7 Mode Replace IC101AT27LV020AAVR7000 TH0003-05223Or higher Modified by factory Modified by factory NONE REQUIREDAVR7000 harman/kardon22