Ext=Zswitch; Ext Input Or Z Input Connector - Tektronix 2212 User Manual

Trigger
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- CH 2 - The trigger SOURCE signal is obtained from the
CH 2 input channel. When CH 2 is selected, "CH2"
is
displayed in the crt readout.
The CH 2 INVert switch also inverts the polarity of the
internal CH 2 trigger signal when the CH 2 display is
inverted.
- LINE - The trigger SOURCE signal is obtained from the
attenuated ac power line signal and routed to the Trigger
circuit. When LINE is selected, "LINE" is displayed in
the crt readout.
- EXT - In the EXTernal trigger SOURCE position an
external signal applied to the EXT INPUT OR Z input
connector is routed to the trigger circuit. When EXT is
selected, "EXT" is displayed in the crt readout.
- EXT:10 - In the EXT:10 trigger SOURCE position an
external signal applied to the EXT INPUT OR Z input
connector is attenuated by a factor 10 before being ap-
plied to the Trigger circuit. When EXT/10 is selected,
"EXT" is displayed in the crt readout.
@
EXT=ZSwitch
By pressing the EXT=Z switch, the signal applied to the
EXT OR Z input connector is routed to the Z-Axis circuit to
obtain intensity modulation, and the LED indicator EXT=Z
lights.
@
EXT INPUT OR Z Input Connector
The EXT INPUT OR Z input connects an external signal to
the trigger circuit or to the Z-axis circuit.
If EXT trigger SOURCE and EXT=Z both are selected, the
signal applied to the EXT INPUT OR Z connector is routed
to both the trigger circuit and the Z-axis amplifier.
In Detail