Yamaha R-N500 Service Manual page 14

R-N500
● Operation Procedures
*
Disconnect the power cable of this unit from the AC outlet.
1. Press the " " (Power) key to the ON position. (Fig. 1)
2. Insert the USB storage device to the USB jack. (Fig. 1)
3. While pressing the "DIMMER" key, connect the power cable to the AC outlet. (Fig. 1)
" " (Power) key
OFF ON
USB jack
USB storage device
4. The USB UPDATE mode is activated and "USB UPDATE" is displayed. Writing of the firmware starts automatically.
(Fig. 2)
Writing is started.
U S B U P D A T E
*
If "ERROR! xxxx" is displayed during writing of the firmware, refer to "List of Error Messages" to determine the
cause and perform the updating procedure again from the beginning.
5. When writing of the firmware is completed, "UPDATE SUCCESS", "PLEASE..." and "POWER OFF!" are displayed
repeatedly. (Fig. 3)
Writing is completed.
U P D A T E S U C C E S S
6. Press the " " (Power) key to turn off the power. (Fig. 1)
7. Remove the USB storage device from the USB jack. (Fig. 1)
8. Start up the self-diagnostic function and check that the firmware version and checksum are the same as written
ones. (For details, refer to "Confirmation of firmware version and checksum")
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"DIMMER" key
Fig. 1
Writing being executed.
V E R I F Y I N G . . .
Fig. 2
P L E A S E . . .
Fig. 3
S x - x : x x %
S1: NET (IC951/IC953 on DIGITAL P.C.B.) section
S2: MAIN (IC21 on DIGITAL P.C.B.) section
S3: (Not for service)
S4: (Not for service)
S5: (Not for service)
P O W E R O F F !