Yamaha QL5, Service Manual

Page: 177 / 367

QL5/QL1
177
*1 When the screen changes to the initialization menu screen, if there were more than one NG factors, the error pop-up is
displayed according to the priority as described below.
(Such factors are all in the log internally but there is no way to show the log at present.)
Note that only the highest priority error pop-up is displayed. Therefore, if more than one-error factors have occurred at the
same time, it is necessary to correct one error factor at a time and restart.
MacAddress NG > > Memory Error fl ag LowBattery fl ag
The specifi c error pop-up for each error factor is as follows.
For MacAddress NG: “Illegal MAC Address! Cannot Use Ethernet.”
For MemoryError: “Memory Error! All Memories Initialized.”
For LowBattery: “Low Battery!”
When the screen changes to the initialization menu screen, the screen usually appears with Initialize All Memories item
selected but when Fader NG has occurred, the screen appears with Fader Calibration item selected.
*2 On the SETUP screen after normal start-up, the battery condition is indicated according to the detected voltage based on
the following criteria. The voltage is measured at 1-minute intervals.
2.5V or lower NO Battery backup not possible
2.8V or lower
LOW
Time to replace battery
3.5V or lower OK Normal
*3 Even when the unit is started normally, if the battery replacement time is reached, Low Battery! error pop-up is displayed.
However, if Low Battery! error popup has already been on the initialization menu screen, it is not displayed for the
duplication reason.
O
Ending Sequence
IRQ0 power off interruption occurred (Power off interruption mask)
Power Down interruption processing
- Mask the DM9000 interruption ..... This is because the power supply of DM9000 will drop first and remain interrupted
- System mute processing (Input/output sound signal muted)
- ADDA reset processing
Power down task activated
Checksum in MRAM backup area is calculated and stored.
Power OFF port monitoring for instant cut-off purposes (normally, the CPU power supply voltage will go out of the operating range and the CPU will stop,
or CPU reset will be activated to escape from this processing)
LCD shutdown sequence: start (Display stopped)
LCD shutdown sequence: END
All operations except the CPU will stop
The power is on again! (Power OFF Port "H")
Power off interruption mask cancelled
Display started
Normal operation
Power turned off