Table 2-2: Effects Of Corrupted Data - Sony Tektronix WFM 1125 Service Manual

Applying and Interrupting Power
Power On
CRT Blinking
Power Off
WFM 1125 Option 0A/0B/0C/0D Service Manual
Consider the following information when you power on or power off the
instrument, or when power is interrupted due to an external power failure.
At power on, the waveform monitor does not run the self check.
The waveform monitor has the internal diagnostic routines to allow you to
isolate faulty modules. If needed, run the internal diagnostics manually.
Refer to Section 6, Maintenance, for information on diagnostics and fault
isolation.
CAUTION. If the CRT blinks, turn off the power. Internal components could be
damaged.
The CRT blinks if the fan on the rear panel stops working. If the CRT blinks,
turn off the power switch and contact Tektronix for servicing.
CAUTION. DO NOT power off the waveform monitor when doing any of the
adjustments described in Section 5, Adjustment Procedures. To do so might
result in the loss of internally stored adjustment constants.
In general, do not power off the instrument when doing operations. Wait for the
instrument to finish the operation when doing adjustments, or saving setups.
Improper power off or unexpected loss of power to the waveform monitor may
result in the following corruptions of nonvolatile RAM (NVRAM). The following
table describes the messages displayed when power is restored after an
abnormal power off.

Table 2-2: Effects of corrupted data

Corrupted data type
Saved Setups
Preparation for Use
Results
Setup Lost
2-11