Tektronix TLA715 Series, Service Manual

Page: 109 / 147

Troubleshooting
6--46
TLA715 Dual Monitor Portable Mainframe Service Manual
Power-On Diagnostics
The power-on diagnostics check the basic functionality of the instrument at every
power on. If any failures occur, the screen displays the calibration and diagnos-
tics property page. Table 6--3 lists a subset of the power on tests. Use the results
of the tests to help you isolate problems to the mainframe or to the modules
installed in the system.
The power on tests ensure that hardware is installed and can be accessed by the
software. The tests do not provide any performance information, but they provide
limited diagnostic information. The TLA Mainframe Diagnostics provide more
extensive tests than the power-on diagnostics.
Part of the power on tests work with the Windows operating system to check
generic hardware including the keyboard, mouse, memory, CPU, and associated
peripherals. More detailed tests include those items listed in Table 6--3. The
interrupt lines and trigger lines are tested for each installed application module.
To view the Extended diagnostics, click on the Extended tab.
Table 6--3: TLA Power-on diagnostic tests
Component Group & test Power on Extended
TLA mainframe VTC Reset Test
n
VTC Walk1 Test
n
ADG Register Test
n
ADG VXI Addr Test
n
ADG VXI Data Test
n
TLA system Interrupt Lines
n n
Trigger Lines
n n
If the instrument passes all the BIOS tests, the primary tree calls for you to run
the CheckIt diagnostics software. CheckIt Utilities is a comprehensive diagnostic
software application to check and verify the operation of the PC hardware in the
mainframe.
To run the software, you must have either a working keyboard or a working
mouse or other pointing device and have the Windows operating system running.
Repair or replace any failed component identified by diagnostics.
To run the diagnostic software, do the following steps:
1.
Turn off all other applications and exit all windows.
2.
Click Start
→
Programs
→
CheckIt Utilities.
CheckIt Utilities