Tektronix VM700A User Manual

Section 9 - Diagnostics
9-6
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Diagnostic Measurements
Table 9-3 lists and describes the VM700A diagnostic measurements. These
measurements can only be run individually.
Table 9-3: Diagnostic Measurements
Test Name Description
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
AdcGain~Adjustment
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Verifies that the Genlock status register correctly represents the hardware
configuration. These tests must pass to run the lock tests.
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
CalDac Adjustment
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Adjusts gain of internal CalDac. Used as reference for internal self-calibration.
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Measure~Sinewave
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Allows you to input external sine waves and measure them. Used for verifying
system flatness. See the VM700A Video Measurement Set Service Manual for
details.
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Measure~Squarewave
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Allows you to input a chopped, calibrated square wave and measure it. Used for
verifying system DC accuracy. See the VM700A Video Measurement Set Service
Manual for details.
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Measure~Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Measures internal instrument temperature. Can be used to relate instrument
internal temperature to ambient temperature.
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Warm_Reboot
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Simulates cycling power. Can be used to copy contents of console buffer (which
may contain useful diagnostic information) from main memory into file/console,
where it can be accessed, printed, etc.
Power-Up Diagnostics
When the VM700A is powered up normally, it first runs the low-level diagnos-
tics, then runs the individual diagnostics selected in the Diagnostics~Selection
file in directory /nvram0/ConfigFiles.
While running low-level diagnostics, the VM700A displays the name of each
low-level test in progress. When low-level diagnostics are completed, the
VM700A displays the message:
Ć *Ć*ĆLOW LEVEL DIAGNOSTICS COMPLETE Ć*Ć*Ć
When a low-level diagnostic routine detects an error, the VM700A displays the
message:
Ć Press any Front Panel Button or Ć
Ć Toggle 1 of 3 CPU "MODE" switches to CONTINUE Ć
ĆĆ AUTOMATICALLY continues in XX seconds ĆĆ
then counts down from 60 seconds. The procedure continues when the count-
down is complete or when a response from the user is detected in the form of a
front-panel button press or the toggling of a CPU mode switch (see below). The
Power-Up Diagnostic
Errors

Tektronix VM700A Specifications

General

Brand	Tektronix
Model	VM700A
Category	Measuring Instruments
Language	English