Tektronix SPG8000 Technical Reference page 174

SYSTEM button menu
162
DDS STATUS SDI: Displays the following information about the clocks used
to generate SDI signals (Option SDI only).
DDS0 Phase: Indicates that the flex clock circuit is correctly aligned
with the internal frame pulse for output channel 1 (SDI 1A and SDI
1B connectors). This readout should show Lock (locked). An Unlk
(unlocked) reading might indicate a problem with the Option SDI board
or with the instrument.
DDS1 Phase: Indicates that the flex clock circuit is correctly aligned
with the internal frame pulse for output channel 1 (SDI 2A and SDI
2B connectors). This readout should show Lock (locked). An Unlk
(unlocked) reading might indicate a problem with the Option SDI board
or with the instrument.
TEMPERATURE. Displays the temperature of various internal components. OK is
displayed as the status when a temperature is within the operating range; WARN
is displayed when a temperature is out of range.
VOLTAGE. Displays the voltages of various internal components. OK is displayed
as the status when a voltage is within the operating range; WARN is displayed
when a voltage is out of range.
The Voltage readouts include the status of the RTC (Real Time Controller) battery
power level. The following status messages may appear:
> 40% (OK) indicates the battery power is good.
20% to 40% (WARN) indicates the battery power is getting low and should
be replaced soon.
< 20% (LOW) indicates that the battery should be replaced immediately.
FAN SPEED. Displays the current fan speeds in RPM followed by the status.
OK is displayed as the status when the fan operation is within range; WARN is
displayed when the fan operation is out of range.
The initial display shows the speed of the main fan. Use the left (◄) or right (►)
arrow button to view the fan speed(s) on the installed Power Supply module(s).
POWER SUPPLY <1 or 2>. Displays information about the selected Power Supply
module (1 or 2). Use the left (◄) or right (►) arrow button to view all of the
following information:
Active: Displays the number of hours that the selected supply has been the
preferred (active) supply.
Standby: Displays the number of hours that the selected supply has been
the backup (standby) supply.
SPG8000 Technical Reference