Sharp AR-5520 Service Manual page 46

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49 01 Flash ROM program writing mode (Operating procedure)
When this simulation is executed, "d" is displayed on the copy quantity display and the machine
enters the Flash ROM program writing mode. Use the writing tool on the PC to write the program.
During writing, the display is made as follows. After completion of downloading, turn OFF/ON the
power to reset.
Status
Download data reception
Data delete start
Data write (Boot section)
Data write (Program section)
Sum check
Download end
Error status
NOTE [*] in the error status indicates as follows to show the error position.
00 Data receive error
02 FLASH ROM delete error
03 FLASH ROM write error (Boot section)
04 FLASH ROM write error (Program section)
05 Sum check error (Loader section)
06 Sum check error (Boot section)
07 Sum check error (Program section)
AR-5520 SIMULATIONS 7-19
Details of operation
POWER SAVE
7-seg display
indicator
d ON
d OFF
d Flash
d Flash
d ON
OFF OFF
E* OFF
08 Sum check error (EEPROM section)
09 EEPROM write error
0a EEPROM read error
0b EEPROM verify error
0F Download data length error
0E EEPROM size error
DUAL PAGE
COPY indicator
OFF
ON
OFF
Flash
ON
OFF
OFF