NEC 2600, Руководство по обслуживанию

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1-20 Technical Information
Table 1-5 DMA Channel
DMA Channel Assigned Device
DMA0 Enhanced Printer Port
DMA1 Sound Chip (default)
DMA2 FDD Controller
DMA3 Not Used
DMA4 Cascade from DMA Controller, P
DMA5 Not Used
DMA6 Not Used
DMA7 Not Used
POWER MANAGEMENT OVERVIEW
Power Management in the NEC Versa lets you conserve energy, save battery power, extend
the life of your LCD backlight, and protect against data loss due to low battery power.
Set some features to function automatically or activate them manually with the keyboard or
a button. It is wise to keep Power Management features enabled, even when using AC
power.
The system arrives set up with many power-saving features already enabled. See the fol-
lowing table.
Table Section 1-6 Automatic Power-Saving Features
Device Default
Timeout
Comment
Video 2 minutes Video turns off after there is no keyboard or
VersaGlide input for the specified timeout.
Hard Disk 15 seconds Hard disk motor stops when hard disk is not accessed
for specified timeout.
Standby 2 minutes System enters Standby mode after total system
inactivity.
You can change the timeout period for any of the devices using Setup. See Section 2 for
Setup utility procedures.