Tektronix 070-9778-03, Руководство по обслуживанию

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Troubleshooting
TLA 711 Color Benchtop Controller Service Manual
6–37
Table 6–9: BIOS error codes and explanations (cont.)
Error code Action to be taken Error code explanation
System RAM Failed at
offset: nnnn The system RAM at HEX address nnnn may be defective. Exchange the SIMMs.
If one of the SIMMs are defective the error
address should change.
System timer error The BIOS failed the timer test. The controller board may be
defective. Try rebooting the system first. If this message
keeps reappearing the benchtop controller is
defective.
Replace the benchtop controller.
Update the BIOS Version
On rare occasions it may be necessary to update the controller BIOS version. In
most cases this is only necessary to activate enhancements to the product. To
update the BIOS, you will need the latest version of BIOS available on floppy
disk (Tektronix part number 063-2895-xx). Before updating the BIOS verify that
the BIOS version on the instrument is an older version than that printed on the
floppy disk label.
The BIOS version is briefly displayed on boot up of the instrument. To verify the
BIOS version number, power on the instrument and watch the upper left hand
section of the screen. A message will be displayed as below:
Copyright 1996 By RadiSys Corporation. Version 1.xx.xx.
RadiSys boot block version 1.xx.xx
Before continuing, verify that the BIOS version that is displayed is an older
version than the version you are installing.
Some controllers were shipped with the BIOS jumper already in place. If the
jumper is not in place, you must disassemble the controller and install the jumper.
If the BIOS jumper is not in place, you will get an error message stating that the
BIOS could not be updated. In order to continue, you must disregard the message
and power off the instrument. Continue with the following steps to disassemble
the controller and install the jumper. After installing the jumper, you must repeat
the BIOS flash procedure.
If the jumper is in place continue with the procedure Set Up and Update the
BIOS on page 6–39.
Verify the BIOS Version
Verify the BIOS Jumper is
in Place