Yamaha RX-V765 Owner's Manual page 79

Troubleshooting
Error message
1.,J-4: CHECK F'F:~'6
Cause
Presence speakers were not detected
during measurement with "Extra SP
Assign" set
to
·'Presence."
Remedy
Check the presence speaker connections and perform
measurement again.
II' presence speakers are not connected, set the
"Extra SP Assign" to other than "Presence."
See
page
S4
76
En
If presence speakers are connected, set the "Extra SP S4
Assign" to "Presence." and retry the automatic setup
procedure.