Tektronix 7613 User Manual

7613/R7613 SN B150000-up
Vertical Amplifier
X/Y Inhibit
Readout
Mainframe
Vertical Mode Command
from Logic circuit
ADD Mode from VERT
MODE switch
Left Vertical Signal
from Left Vertical Unit onan menmmenpa Vertical
Channel
Switch
Right Vertical Signal mtmmmerniipad U2340
from Right Vertical unit —————_—---e»4
Auxiliary
Y Axis
input Amplifier
Q2365A & B
Auxiliary Y-Axis Input
from Horizontal Plug-in
Delay-Line
Buffer
Q2390 02386
Q2396
Delay-Line
(~ 150 ns)
DL2400
Vertical
Signal to
Vertical
Amplifier
Fig. 3-16A. Vertical Interface detailed block diagram for SN B150000 and up.
Input / Output
ad
Pe
A
ev
3}
@
SS
& Output signal
ze
14 12, 13
Lo Left vertical signal
HI LO Right vertical signal
LO HI Both (added algebraically)
LO+-6V
HI ~4+1.1V
Fig. 3-17A. input/output table for Vertical Channel Switch.
When the VERT MODE switch is set to either ALT or
CHOP, the Mainframe Vertical Mode Command at pin 4
switches between the LO and HI levels at a rate determined
by either the Chop Counter or the Vertical Binary stages
(see Logic circuit description}, This action allows the signal
from the left vertical unit to be displayed when the
Page 4 of 13
Mainframe Vertical Mode Command is LO and the signal
from the right vertical unit is displayed when the Main-
frame Vertical Mode Command is HI. When ADD vertical
mode operation is selected, a HI level is applied to pin 14
and the level at pin 4 is LO as determined by the Vertical
Mode Control stage in the Logic Circuit. This allows both
the right and ieft vertical signals to pass to the output pins.
Now, the signal fram both vertical units is algebraically
added and the resultant signal determines the vertical
deflection.
The X/Y inhibit signal from the Readout system is
applied to pin 6 of U2340. It has final control over the
output signal from U2340. Quiescently, the X/Y Inhibit
signal is LO and the signal from the selected vertical can
pass to the output pins 12 and 13, However, when the
Readout system is ready to display Readout information,
the level at pin 6 goes HI. This level blocks the signals from
both vertical compartments and there is no signal output
from U2340 under this condition, Transistor Q2390 will
conduct and provide about the same current for the output
stage as under normal conditions, This limits any change in
positioning that would otherwise occur when the X/Y
Inhibit signal is applied from the Readout system.
M20610/1073
7613

Tektronix 7613 Specifications

General

Brand	Tektronix
Model	7613
Category	Test Equipment
Language	English