Tektronix 2445A - Page 249

FRONT-PANEL
ROW, COL,
CONTROLS
ANO ANALOG
~ CD (CONTROL DAT A)
0
SIGNALS
ll.T AND ll.V
I
ANALOG
REFERENCE VOLTAGES
AND
DIGITAL
LED DATA
CONTROLS
FRONT-PANEL
0
_cyl
[JJ
INDICATORS
RAM CH 2 OUT
0
0
~
MPU BUS
1
iiw[
'\
+
CH 4 IN
~
CH 4 SIS
CH 3
CH 3 SIG
VERTICAL
DELAY LINE
VERTICAL
AND
CHANNEL
~
AMPLIFIER
VERT SIB
CH 4
SWITCH
,
CH 3 IN
~
PREAMP
2
0
0
CH 4 TRIG PICKOFF
co.
0
CH 3 TRIG PICKOFF
READOUT
r
VERTICAL
-=:f RE
0
UT!
OUT
2
CH 3 GAIN
'
READOUT HnATZONTAL nuT
AUXILIARY
CH 4 GAIN
CONTROL
READOU7: l
REGISTER
i---- l!li[
REQUEST
READOUT
0
-
ACKNOWLEDGE
CH 2
CH 2 OUT TRACE SEP
,__...
ATTENUATOR CH 2
DISPLAY
HORIZONTAL SELECTS
AND
PREAMP
MAG LATCH
~
CH 2 SIG
Cll....,
SEQUENCER
SWEEP BATES
RELAYS
0
•XT Z TN
CH 2 TRIG
0
HOLOOFF
L
CH 2 IN ~
0
PICKOFF
DLY SELECT
AU
'
6
.--
CD
I
Z-AXIS
Z-AXIS
DC
~
....
"'
AMPLIFIER
RESTORER
CRT
coo
~~
A GATE
OUT
0
HUI
0 0
l!:irl
I!:;:!
B GATE
CD
"'
"'v
i
2
----
r-..
2
~
CH 1
--------
----
I
ATTENUATOR
CH 1 SIB
A BATE
AND
TRIGGERS
A
MAG LATCH
CH 1
SWEEP
__.,; 2
RELAYS
PREAMP
TRIG HORIZ SIB
-
CH 1 TRIG PTCKOFF
0
-
0
____. HORIZONTAL
CH 1 IN ~
0 0
AMPLIFIER
CD-
A SWEEP
~
-
0
A12
>---
~
HIGH-VOLTAGE
-
t
DELAY
POWER SUPPLY
BATE
-
+14KV
0
CD
LOW-VOLT AGE
LINE 160 Hzl
B
~
POWER
CD-
SUPPLY
SWEEP
I
0~
,____ crnc~~~s
TRIG
0
B SWEEP
B GATE
-
HORIZONTAL OUT IX)
6017-21
Figure 10-4. Instrument block diagram.