Sony STR-ZA3000ES Startup Manual page 14

UPDATE FAILED
 Insert a USB flash drive on which the package file for updating the
receiver is saved, and then turn the receiver off and turn it on
again.
List of messages after Auto Calibration measurements
Display Explanation
Code 31 Front speakers are not selected properly. Select the front
speakers using SPEAKERS and perform the Auto
Calibration again (page 5).

Code 32, Code 33 Speakers were not detected or not connected properly.

None of the front speakers are connected or only one
front speaker is connected.

Either the surround left or surround right speaker is not
connected.

A surround back speaker is connected only to the
SPEAKERS SURROUND BACK (FRONT HIGH/FRONT B/BI-
AMP/ZONE 2) R terminal. If connecting only one
surround back speaker, connect it to the SPEAKERS
SURROUND BACK (FRONT HIGH/FRONT B/BI-AMP/ZONE
2) L terminal.

Either the front high left or front high right speaker is not
connected.

The optimizer microphone is not connected. Make sure
that the optimizer microphone is connected properly
and perform the Auto Calibration again.
If the optimizer microphone is connected properly but
the error code still appears, the optimizer microphone
cable may be damaged.
Warning 40 The measurement process has been completed and a
high noise level has been detected. You may be able to
achieve better results if you try the process again in a
quiet environment.

Warning 41, The input from the microphone is too large.

Warning 42 The distance between the speaker and the microphone
may be too small. Set them further apart and perform
the measurement again.
Warning 43 The distance and position of a subwoofer cannot be
detected. This may be caused by noise. Try performing
the measurement in a quiet environment.
NO WARNING There is no warning information.
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