Yamaha TSX-B237 Update Manual page 3

Confirming the unit's firmware version
Follow the procedure described below to confirm the unit's firmware version. If the unit's firmware version is the same as the latest
firmware version indicated on the Yamaha website, there is no need to update the unit's firmware (p. 4).
1
Press OPTION on the remote control.
2
Use e/r to select "SYSTEM" , and then press
ENTER.
3
Use q/w to select "Firmware" , and press
ENTER.
4
Use q/w to select "Version Information" , and
press ENTER.
The unit's firmware version is displayed.
3