Yamaha RIO3224-D Service Manual page 93

Rio3224-D
● Finishing Sequence
Power turned off.
IRQ0 power off interruption occurs. (Power off interruption mask)
Input/output sound signal muted.
Power down (Key Scan) task activated.
Checksum in parameter area calculated and stored in Flash ROM.
Usually, the power is turned off completely here.
Power turned on again!
Power off interruption mask canceled.
Sound signal restored.
Normal operation
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