Figure 3-2: 2212 Vertical System Block Diagram - Tektronix 2212 Service Manual

Vertical System
CH1 _ _ _ _
~
In
CH 1
Attenuator
CH 1
Input
Buffer
Var.Gain
...
I
Chop Blanking
-~,
CH1
I
Out
P r e - A m p ~ . Trig.
--
-_
-_
-_
-_-_
-_ -_ -_-_ -_
-_
-_ -_ -_
--~~
CH 1 SR
4094
Serial Data
CH2
CH2SR
4094
In CH2
Attenuator
3-8
Serial Data
from µP
CH 2 SEL
CH2
Input
Buffer
CH 1 EN
~weepH.O.
Vert.
Logic
ALT/CHOP
~LTMAG
~OActive
CH2 EN
CH2
Pre-Ampl.
.___~__, Trig.
Out
Var. Gain
CH 1 Pos.
CH 2 Pos.
ADD Pos.
Vert. Readout
Pos.
Multiplex
taceSep.
Delay
Line
Driver
Pos.
Circuit
Figure 3-2: 2212 Vertical System Block Diagram
Output
Ampl.
CH 1
Storage
Acquisition
CH2
Storage
Acquisition
CRT
Storage
Display
System
Theory of Operation