Yamaha PSR-S770, Service Manual

Page: 56 / 110

PSR-S770/PSR-S970
56
A
User drive repaired.
Main Routine
2nd opening
screen displayed.
(PSR-S770)
Improper power shut
down! Backup data and/or
Userfiles have been lost.
Owner name displayed.
No
Yes
Is user drive
partially damaged?
Formatting user drive. Yes
No
Has user drive
been formatted?
No
Yes
Has clearing registration
or
Factory Set been executed?
Force Format Mode
Initializing regist backup.
Initializing registration data.
No
Yes
Has Factory Set
been executed?
No
Yes
Has clearing system backup
or
Factory Set been executed?
Initializing system backup.
Reproducing system backup.
/CPU-SP-OFF cancelled
(depending on function).
ERR-DETECT pulse output.
Assert file written.
/CPU-MUTE cancelled.
Initializing system setup.
Yes
No
END
Has Factory Set
been executed?
No
Yes
Panel LED lit and
main screen displayed.
Err Detect check
Is Mute function normal?
Internal hardware error!
As per headphone
condition and function
setting.
Sound can be output
from keyboard.
Animation to 2nd screen
For example, power
switch turned off while
writing.
Checking and initializing
backup data.
Initializing backup data.
Checking and initializing
registration data.
If failed to reach here, possible
cause may be in;
• EBUS SWP
If failed to reach here, possible
cause may be in;
• Backup Flash
If failed to reach here, possible
cause may be in;
• Backup Flash
If failed to reach here, possible
cause may be in;
• Backup Flash
Access to SDRAM (IC207), SWP-NAND
(IC600, IC601) and SWP-SDRAM (IC602)
started.
(Data transferred from SWP NAND to SWP
SDRAM and further to CPU SDRAM)
When the owner name
has been registered.