Tektronix 545A Instruction Manual page 107

UN BLANKING
CT
+ 225V
4-
GATE
OUT C F
4-IOOV
U-
THIS
WAVEFORM
IS
OBTAINED ONLY
IN
•»"
INTENSIFIED BY
"A" AND "A OEIAVEO
BY
"R
'
POSITIONS
OF HORIZONTAL DISPLAY CONTROL.
OTHER CONTROL
SETTINGS WERE:
EXT
TRIGGER
INPUT
SIGNAL
(TIME
RASE
B)
TIME
-
CM
(TIME-BASE A|
TIME
CM
(TIME-BASE
R»
DELAY-TIME
MULTIPLIER
STABILITY (TIME
BASE
A)
+
MU-
LER RUNUP CIRCUIT-
SWEEP
-GATING
MULTIVIBRATOR
q |*gate
1
THE
TRIGGER PULSES PRESENT
IN THIS
WAVEFORM
ARE SO SHARP THAT THEY USUALLY
CANNOT
RE
SEEN EXCEPT AT HIGHEST SWEEP
SPEEDS
TRIGGER PULSE
FROM PLATE,
P
IN6.V456
-m
(TIME-
BASE
A
TRIGGER
DIAG.)
DELAYED
TRIGGER PULSE
FROM SW50V
IF
(DELAYED
PICKOFF
DIAGRAM)
DISCONNECT
DIODES
^-TIMING
1TOR
TIMING
/
.
er \ , « i /
DUAL-TRACE
CHOPPED
BLANKING
TO SWITCH
©4©
(CRT
CIRCUIT)
3
CRlSe
>IM
ALTERNATE -TRACE
SYNC
AMPLIFIER
SCt
PARTS
LIST
FOREAfiUEB
VALUES
AND
S/N
CHANGES
OF PAfcTS
MARKED
*"!
^
SYNC PULSE
TO PLUG-IN UNIT
CONNECTOR
-
1
\
-49
SAWTOOTH
TO
HORIZ.
DISPLAY
SWITCH,
SW347A-2F
(OELAY PICKOFF)
SW347A-2R
(HORIZ.
AMR)
t
4
L46
SAWTOOTH OUT
C
F
HH
*,
«
"-VW-J
^
VI93B
.'/2
6DJ8
RI96
IOOK
R174
8K
-SWP.
LENGTH
FOR
ADDITIONAL SWITCH DETAILS
SEE
TIME
BASE A TRIGGER
DIAG.
-ISOV
SW
SOI
—
[horizontal display| -
FOR ADDITIONAL SWITCH DETAILS
SEE:-
EXT.
HORIZ.
AMP. DIAG.
DELAY
PICKOFF
DIAG.
BLOCK
DIAG-
1
WAVEFORMS
*nd
VOLTAGE READINGS
1
WERE OBTAINED WITH CONTROLS
SET
AS FOUOWS
1
STaRIIITY
1
FOP WAVEFORMS
PRESET
1
FOR UPPEP VOlTAGE READINGS
(SWEEP IS DISABLED! CCW. RUT
NOT
5WITCHED TO PPESET
4R FO«
LOWER VOLTAGE READINGS
(SWEEP FRCERUNSi
CW
SEE
ALSO IMPORTANT NOTE ON
TIME RASE A TRIGGER DIAGRAM
£RI76
2K
>
R
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>4K
MRW-
I I
-
I
B -Gl
TYPE S4SA OSCILLOSCOPE
TIME-BASE GENERATOR
A