Page 20 / 25 make sure you are using the subwoofer output on the AVR
Page 124 manual speaker setup, Speaker Setting page 125 set all speakers to small, SW to YES, crossover 80
on the subwoofer make sure it is on and the volume control is set to 25%
Plug in the mic that came with the AVR into the front mic jack on the AVR
Page 110 select auto MCACC, keep SP SYSTEM, START
The AVR will calibrate the system (do you hear the subwoofer during the calibration ?? if not get back on here, there is something else wrong)
After the calibration is complete check the subwoofer channel trim in the AVR, you want it to be near 0 +/-3 dB is fine.
If the calibration set the channel trim to to -4,-5.-6 or lower then the volume on the sub is to high, if the channel trim is +4,+5,+6 or higher the volume on the sub is to low.... adjust the volume on the sub as required and run the calibration again as described above. Repeat until the AVR calibration sets the subwoofer channel trim between -3 and +3 dB.
To start out use the auto surround setting on the AVR page 61
Study the owners manual, lots of good stuff in there, ask questions about the things you do not understand.