Yamaha PSR-S710 Service Manual page 73

A
"Copyright (C) 2009"
will appear
Yes
Backup Flash ROM
has broken data?
Improper power shut
No
down! Backup data and/or
Userfiles have been lost.
Yes
Factory Set executed? *
No
Force Format Mode
Check Backup Data.
If they are damaged, Initialize Backup Data
they will be initialized.
If the booting procedure stops here,
the Backup Flash ROM (IC20)
will be defective.
Clear Registration?
Yes
or
*
Factory Set executed?
No
Check Registration data.
If it is damaged, Initialize Registration data
it will be initialized.
If the booting procedure stops here,
the Backup Flash ROM (IC20)
will be defective.
No
Backup Flash ROM
is not formatted?
Yes
Turning the power off
during data writing, etc
Restore Backup
Flash ROM
Initializing regist
backup.
Format Backup
Flash ROM
If the booting procedure stops here,
the Backup Flash ROM (IC20)
will be defective.
2nd opening screen
Animation for
will appear
2nd screen
Owner's name will appear
Clear System Backup?
No
or
*
Factory Set executed?
Initializing system setup.
Yes
Initialize system backup
Recover the LCD
Recover System Backup
brightness parameter
which is set with Function
Release Mute
/MUTE = H (IC7 4 pin)
This will depend on the
Release SP OFF
connection of Headphones
/SPOFF = H (IC7 2 pin)
and the setting of Function
If you play the keyboard, sound will
be produced
If the booting procedure stops here,
the SWP51 IC (IC304) will be
defective.
Turn on the panel LED
Main screen will appear
Cancel suspension of
MIDI communication
USB-MIDI Connect
Main Routine
PSR-S710/PSR-S910
73