Trigger - Tektronix 2235A Instruction Manual

S380
R l l 2 5200
C H
I
POSITION TRIG VIEW
R43
S H I S I G 2
-
CHI PREAMP
SIO 0102. 0103.
V E R T I C A L OUTPUT
I
I I I
0114. 0115.
A M P L I F I E R
UI2OA. 8. U130 piTiEi]
CHANNEL
CHI HIGH-Z CHI CHI CH2 SWITCH
ATTENUATOR
,
BUFFER AMPL
,
LOGIC
R
AND INPUT UiO. 013.
ADD U537A.
COUPLING 015. 018 ALT U540A
VERTICAL
[m]
CHANNEL
CH2 HIGH-Z CH2 CH2 SWITCH OUTPUT AMPL
P ATTENUATOR
,
BUFFER AMPL
+
CR200. CR201. 0230. 0231,
AN0 INPUT U60. 063,
CHOP OSC
CR202. CR203.
COUPLING 065. 068
AN0 CHOP
0440. 0441
C
BLANKING
I CH 1 AND CH 2 1
U5378. C . 0. CH2 PREAMP
~ 5 4 0 8 0152. 0153.
V E R T I C A L
I
I
I
@
ATTENUATORS
I
I
+
CH2SIG 0164. 0165.
PREAMPS
UI~OC. 0. u180
AND
S W I T C H I N G I I
CR226. CR227.
CR228. CR229
55 1
S60
>
R721 SEC/DIV
CH 2 POSITION
VAR
-VERT OEF
BSIGNAL
R162
A A
-
-
AJRIGGER
A
- -
-
P_P (L)
.
TVJRIGSNABLE
?
-
A
S401
- - -
A
- -
A
t
-
. I
-
,
,
TRIGGER
L
A
-
A 7
j
MODE
A SWEEP GENERATOR
AND L O G I C
A
-
R9521
t
HOLOOFF TIMING
VAR
07470, 07471
4
=
SWITCH
VAR
A
-
HOLDOFF
-
*
07472, U5048
U715B LINE
A
i
t
-
TRIGGER
A
\I
5390 BEAM
_
A EN0 OF SWEEP ASWP
!I \'
COMPARATOR
C AUTO 0525
1
,
-
BASELINE
j
0501. 0509.
U502. U5320
A
-
-b
Z-AXIS
A
UNBLANKING --+ 0825. 082
-
X Y
LOGIC 0840.
A
-
A MILLER
-
CR551. 0583,
0555 SWEEP
0586
A SWEEP LOGIC . C - - - - - - - - - - -
- .
+
U504A. U506. U532A 4 - - - t 0701. 0706
-
-
0511. 0576. 0578 , ASATE (L) Q704A. B
-
A
i L
-
4
m
\I
+
-
AJATE ,
-
-
SEP (L)
r
, I
i
L 7 I
XJXIS
AI
L
AJNLY (L)
t
7
I I
I
I
*
ALTERNATE DISPLAY SWITCHING
--b
v
C A L I B R A T O R ,
BJNLY (L)
0670. 0674. 0682.
-
XY AMPLIFIER
AND H O R I Z O N T A L
ALT
-
HALT 0683. 0684. 0687. ~ 7 1 5 ~
OUTPUT A M P L I F I E R
-
7 t
U660E. U665B. C .
i t i U670B. U680A. B
+
41
DELAY TIME B SWEEP LOGIC
+
B EN0 OF SWEEP HORIZONTAL
B OELAY
t
TIME POSITION
- - - b POSITION COMPARATOR - D U660A, 8, F. U670A. COMPARATOR
1
!I I f
R726 POSITION
- f , 064. U655 U680C. 0, 0630. 0631
t
0643, U665A. D
' - - - - ,
HORIZ OUTPUT
R9644
I 1 I I I
I
AMPLIFIER
- -
+HORIZ OEFL
BSIGNAL
1 b
HORIZ PREAMP
ASWEEP 0730. 0732.
+
0768. 0770.
8 TRIGGER LEVEL COMPARATOR
*
8775. 0778,
-
-HORIZ OEFL
AND SCHMITT TRIGGER
B TIMING
AJISP
0737. 0740.
8 TRIGGER SLOPE
#
U6P5
Z-AXIS LOGIC SWITCH 8742. 0745.
AND R C BJISP U760
5602
b
BSWEEP
A
-
---C
-
A
RUN AFTER DLY
8 TRIGGER LEVEL
-
-
U660D. 0637
0709, 0710A, B
t
CALIBRATOR
U985
R602
-
+
CAL
B T I M I N G AND A L T E R N A T E B SWEEP
@