Yamaha TYROS4 Service Manual page 110

Tyros4
[At start]
Displayed message
Improper power shut down! Backup
data and/or User fi les have been lost.
Initializing system setup.
Force Format Mode.
Initializing registration backup.
Data Flash ROM Device Error.
MAC ADDRESS ERROR !!
Device error!
The pedal and Vocal Harmony functions
are not effective.
[ASSERTION]
Displayed message
– – – – – – – – – – – – – – – – – – – – – – – – – – –
Unexpected error! (main)
Turn the power off and on again
– – – – – – – – – – – – – – – – – – – – – – – – – – –
Parameter 1
Parameter 2 / Parameter 3
– – – – – – – – – – – – – – – – – – – – – – – – – – –
Unexpected error! (sub)
Turn the power off and on again
– – – – – – – – – – – – – – – – – – – – – – – – – – –
Parameter 1
Parameter 2 / Parameter 3
110
Meaning
Power has not been turned Data is being restored as defect has been
off normally. Backup data detected in the data backed up in the data fl ash
and user fi le have been lost. ROM.
System setup being
During execution of Factory Set
initialized
Factory Reset is performed in the forced clear
Forced clear
mode
Registration backup being
When the registration backup data is cleared
initialized
Starting is disabled because the data fl ash ROM
Flash ROM data error
is damaged
MAC address error MAC address is not written or defective
The device for VH does not
There is no reply from SSP1. The uptake of the
work.
pedal, microphone input and the vocal harmony
The pedal and vocal
function do not work, but the other functions
harmony function do not
work.
work.
Meaning
MAIN side
Unexpected error
System down
Fatal error occurred.
Turn off the power and then
turn on again.
SSP1 side
Unexpected error
System down
Progress/status
Progress/status
How to service
–
–
–
–
Replace the DM circuit board.
(Because the MAC address is
included.)
Replace the SSP1 peripheral
device.
How to service
Reboot
Check the trouble points by the
test program.
Perform "Factory Reset", and
reboot. (See page 102 "SYSTEM
RESET".)