Floppy Diskette Drive Subsystem; Power Subsystem - Texas Instruments TravelMate 5000 Series Maintenance Manual

Caution: Formatting the disk drive erases any data that may be stored
on the disk. Therefore do not attempt a format of the hard disk unless
the computer self-test and diagnostics confirm that the disk has not
been formatted.
A Hard Drive activity LED is located along the front edge of the notebook
(See Figure 1-19). This LED lights during hard drive read/write accesses.
Caution: The notebook should not be moved when the HDD LED is lit
to prevent accidental damage to the hard drive.

1.8.11 Floppy Diskette Drive Subsystem

The Floppy Diskette Drive Subsystem consists of a Floppy Controller (part of
the Combo SMC 37C665 chip) and the Floppy Diskette Drive.
The Floppy Diskette Drive can read/write standard 3.5-inch minidiskettes
(1.44MB capacity).
A Floppy Drive activity LED, located on the front edge of the notebook, lights
during floppy read/write accesses.

1.8.12 Power Subsystem

Each battery pack contains four green LEDs to display charge status of the
pack (when the Display Charge Status button is pressed on the front of the
battery pack). The four LEDs indicate the percent of charge on the batteries
as shown in Figure 1-4.
The Battery Low Indicator on the top case (Figure 1-19) glows amber when
the batteries are low and is off when the batteries are more than 10%
charged.
As long as one battery pack has sufficient charge (25% or more) to operate
the system, the remaining battery pack may be removed with the notebook
operational (in Suspend mode).
Functionally, the Power Subsystem consists of the following major sections:
1-38 General Description
AC Power Adapter
Two Internal Battery Packs
NVRAM Battery (on Main Board)
Power Supply Section (on Main Board)
Inverter Board Assembly (in Cover/Display Assembly).
Power Conservation Logic (part of Main Board)