Tektronix 070-9778-03, Руководство по обслуживанию

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Troubleshooting
TLA 711 Color Benchtop Controller Service Manual
6–35
BIOS Error Messages
The benchtop controller runs a BIOS test on bootup. If the BIOS test encounters
any problem the program displays the error on the external monitor. Table 6–9
lists the error codes, an explanation of each error code, and actions that can be
taken. Refer to the TLA 700 Series Installation Manual for information on BIOS
setup parameters and feature settings.
Table 6–9: BIOS error codes and explanations
Error code Error code explanation Action to be taken
Diskette drive A error The BIOS test recognizes the presence of the floppy disk
drive but the floppy disk drive fails the POST test. The floppy
disk drive may be defined incorrectly in the CMOS setup.
The floppy disk drive may not be connected correctly on the
adapter board. Verify the floppy disk drive is configured
correctly in the CMOS setup.
Verify that the floppy disk drive cable is
connected on the floppy disk drive and the
adapter board.
Extended RAM Failed
at offset: nnnn The extended memory may not be configured correctly or
the extended memory is defective at HEX address nnnn. Verify that the extended memory is configured
correctly in the CMOS setup.
Exchange the SIMMs, if one of the SIMMs are
defective the error address should change.
Failing Bits: nnnn The RAM address mapped to HEX nnnn in the system,
shadow, or extended memory has failed. A 1 in the map
indicates a failed bit. Exchange the SIMMs, if one of the SIMMs are
defective the error address should change.
Fixed Disk 0 Failure
(or)
Fixed Disk Controller
Failure The hard disk drive may not be defined correctly in the
CMOS setup. The hard disk drive may not be connected
correctly. The hard disk drive may be defective. Verify the hard disk drive is configured correctly
in the CMOS setup.
Verify that the hard disk drive cable is con-
nected on the hard disk drive and on the
adapter board.
Incorrect Drive A Type
– run Setup The floppy disk drive may not be defined correctly in the
CMOS setup Verify the floppy disk drive is configured
correctly in the CMOS setup.
Invalid NVRAM media
type The BIOS can not access the NVRAM Replace the memory SIMMs.
Replace the benchtop controller module.
Keyboard controller
error The keyboard controller may be defective Swap keyboard with a known good keyboard.
Replace the benchtop controller module.
Keyboard error The keyboard may be missing or defective Swap keyboard with a known good keyboard.
Keyboard error nn There may be a stuck or defective key. The BIOS returns the
address of the key where HEX nn is the address of the key Swap keyboard with a known good keyboard.
Monitor type does not
match CMOS – Run
SETUP The monitor type may be defined incorrectly in SETUP Verify that the monitor type is defined correctly
in the CMOS setup
Operating system not
found The operating system can not be found. Insert a bootable disk into the floppy disk drive
and try to reboot.
Reload the Windows 95 operating system.