ICP Electronics JUKI- 745E, Руководство пользователя

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2.5 Clear CMOS Setup
If you want to clear CMOS Setup (for example you have forgotten
the password then you should clear setup, then reset the
password), you should close the CN34 pin 2-3 about 3 seconds,
then open it again. To set back to normal operation mode, close
pin 2-3.
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CN34 : Clear CMOS Setup (Reserve Function)
CN34 DESCRIPTION
2-3 Normal Operation
3-4 Clear CMOS Setup
2.6 Battery Backup for CMOS Setup
JUKI-745E provides a 4-pin header CN34 used for battery backup
function. When set to close, pin 2-3 will use the on board battery.
When you want to use external battery, you should take off the
jumper and use the connector as an external battery connector.
•
CN34: Battery Backup Function
1 External b
2 Internal b
3 To CMOS power (Note:2-3 ON, use Internal battery)
4 GROUND (Note: 3-4 ON, Clear CMOS)
2.7 BIOS Flash Chip Write Voltage Setting
There are two types of BIOS Flash Chip, one is 12V write voltage
and the other is 5V.
•
JP2: Flash ROM setting
Flash ROM
Voltage
Flash ROM
Size
1-3 +12V 2-4 1MB
3-5
+5V 4-6 2MB