Yamaha RX-Z11 Service Manual page 31

G Confirmation of firmware version and checksum
1. Connect the power cable of this unit to the AC
outlet.
2. Press the "MASTER ON/OFF" key of this unit
while pressing the "PROGRAM" knob of this unit.
Then the ADVANCED SETUP mode is activated.
(Fig. 2)
3. Press and hold the "SPEAKERS A" key for about
3 seconds. (Fig. 2)
"VERSION / SUM" is displayed.
Check the displayed firmware version and
checksum are the same as the written firmware
version and checksum.
"MASTER ON/OFF" key
* When the displayed firmware version and
checksum are different from written firmware
version and checksum, follow the steps from
1 to 7 of "Operation Procedures" again.
4. Press the 'MASTER ON/OFF" key of this unit to
turn off the power.
"SPEAKERS A" key
VERSION / SUM
MAIN version and checksum.
H0126/D271D4AB
"PROGRAM" knob
Fig. 2
RX-Z11/DSP-Z11
31