Yamaha MCR-730, Руководство по обслуживанию

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26
DRX-730/NX-E700
DRX-730/NX-E70
0
N O P R O T E C T A V E R . B 3 9 S : 0 8 4 C
P 1 P R T : 0 0 0 A
P 3 P R T : 0 0 0 A
When there is a history of protection function:
●
Display provided when Self-Diagnostic Function started
The FL display of this unit displays the protection function history data then the main menu (sub-menu VERSION/CHECK
SUM of main menu No. 1 FIRMWARE VERSION) a few seconds later.
When there is no history of protection function:
Main menu display Opening message
When there is no protection history
Version (1 alphabet)
After a few seconds
●
History of protection function
When the protection function has worked, its history is stored in memory with a backup. Even if no abnormality is noted
while servicing the unit, an abnormality which has occurred previously can be defined as long as the backup data has
been stored.
The history of the protection function is cleared when self-diagnostic function is cancelled by selecting PRESET
RESERVED (Memory initialized) of main menu No. 2 or when the backup data is erased.
The FL display appears as shown below depending on the type of the protection
function.
The protection function worked due to a defect or overload in the power supply.
If the power is turned on with the abnormality unsolved, the protection function
works in about 3 seconds to turn off the power.
For detection of each protection function, refer to main menu No.8 AD DATA.