Texas Instruments 660 - Manual (Page 73)

Troubleshooting Procedures 5-13
Table 5-5 General Troubleshooting Procedures (continued)
LCD screen does not
show data 1. Check the LCD Status Bar if Suspend mode is
activated. Press any key or press the power
button to resume operation and display.
2. Check if LCD cables are disconnected or loose.
3. Check if the display output is switched to the
external monitor.
4. Check if the Contrast level is set to minimum.
5. Check if there is power.
6. Replace the LCD Inverter board found inside the
LCD Panel.
Battery Power does not
last 1. Make sure that the power management features
are enabled.
2. Recharge the battery pack for 1.5 hours before
using again.
3. Replace the battery pack.
System halts during boot
sequence 1. Check condition of selected bootload device (disk
or hard disk) for bad boot track or incorrect OS
files.
2. Try booting from a new bootable disk and recopy
or repartition hard disk.
3. Check for any BIOS error messages on the
display screen.
4. Replace motherboard.
I/O processing
malfunctions 1. Check the connections of all internal devices.
2. Replace motherboard.
Diskette drive does not
work 1. Check if floppy disk drive cable is connected
properly.
2. Check disk type if correct and not faulty.
3. Replace disk drive.
4. Replace motherboard.
Hard disk drive
malfunction 1. Check if hard disk drive is set properly on CMOS
SETUP.
2. Check disk drive cables and connections.
3. Check if disk drive is good.
4. Replace the motherboard.