Performance Check— Type 3 2 3
33. Check External T riggering O pe ra tio n
REQUIREMENT— Stable display in EXT TRIG OR HORIZ
AC and DC positions o f the Trig/Horiz Coupling switch with
the TRIGGER control set to + AUTO, variable positive-slope
area, variable negative-slope area and — AUTO; check
with a 75-millivolt signal at 400 kilohertz and a 190-millivolt
signal at four megahertz.
a. Change the following control settings:
Trig/Horiz Coupling
EXT TRIG OR
HORIZ AC
X 10 HORIZ MAG
Pushed in
b. Set the constant-amplitude generator for a 0.75-divi
sion display (75 millivolts) at 400 kilohertz.
c. CHECK— Stable CRT display is presented.
d. Turn the TRIGGER control clockwise to the variable
positive-slope area.
e. CHECK— Stable CRT display can be obtained with the
Trig/Horiz Coupling switch set to EXT TRIG OR HORIZ
AC and DC. TRIGGER control may be adjusted as neces
sary to obtain a stable display.
f. Turn the TRIGGER control clockwise to the variable
negative-slope area.
g. CHECK— Stable CRT display can be obtained with the
Trig/Horiz Coupling switch set to EXT TRIG OR HORIZ AC
and DC. TRIGGER control may be adjusted as necessary
to obtain a stable display.
h. Set the TRIGGER control to — AUTO.
i. CHECK— Stable CRT display is presented.
j. Set the constant-amplitude generator for a 1.9-division
display (190 millivolts) at 400 kilohertz.
k. Without changing the output amplitude, set the gen
erator to four megahertz.
l
. Pull the X 10 HORIZ MAG switch out.
m. CHECK— Stable CRT display is presented.
n. Turn the TRIGGER control counterclockwise to the var
iable negative-slope area.
o. CHECK— Stable CRT display can be obtained with the
Trig/Horiz Coupling switch set to EXT TRIG OR HORIZ AC
and DC. TRIGGER control may be adjusted as necessary
to obtain a stable display.
p. Turn the TRIGGER control counterclockwise to the var
iable positive-slope area.
q. CHECK— Stable CRT display can be obtained with the
Trig/Horiz Coupling switch set to EXT TRIG OR HORIZ AC
and DC. TRIGGER control may be adjusted as necessary
to obtain a stable display.
r. Set the TRIGGER control to + AUTO.
s. CHECK— Stable CRT display is presented.
t. Disconnect the high-frequency generator.
3 4 . Chedk Low-Frequency T rigg e rin g O p e ra tio n
REQUIREMENT— External, stable display in EXT TRIG OR
HORIZ AC and DC positions of the Trig/Horiz Coupling
switch with the TRIGGER control set to + AUTO, variable
positive-slope area, variable negative-slope area and —
AUTO; check with 75-millivolt signal at 30 hertz. Internal,
stable display in INT TRIG AC position of the Trig/Horiz
Coupling switch with the TRIGGER control set to + AUTO,
variable positive-slope area, variable negative-slope area
and — AUTO; check with a 0.3-division display at 30 hertz.
a. Connect the low-frequency constant amplitude sine-
wave generator to the VERT INPUT connector through the
42-inch 50-ohm BNC cable, 50-ohm BNC termination and
the BNC T connector. Connect the output of the BNC T con
nector to the EXT TRIG OR HORIZ INPUT connector with
a 42-inch 50-ohm BNC cable.
b. Change the following control settings:
TIME/DIV
10 ms
X 1 0 HORIZ MAG
Pushed in
c. Set the low-frequency generator for a 0.75-division
display (75 millivolts) at 30 hertz.
d. CHECK— Stable CRT display is presented.
e. Turn the TRIGGER control clockwise to the variable
positive-slope area.
f. CHECK— Stable CRT display can be obtained with the
Trig/Horiz Coupling switch set to EXT TRIG OR HORIZ AC
and DC. TRIGGER control may be adjusted as necessary to
obtain a stable display.
g. Turn the TRIGGER control clockwise to the variable
negative-slope area.
h. CHECK— Stable CRT display can be obtained with the
Trig/Horiz Coupling switch set to EXT TRIG OR HORIZ AC
and DC. TRIGGER control may be adjusted as necessary
to obtain a stable display.
i. Set the TRIGGER control to — AUTO.
j. CHECK— Stable CRT display is presented.
k. Set the Trig/Horiz Coupling switch to INT TRIG AC.
l
. Set the low-frequency generator for a 0.3-division
display at 30 hertz.
m. CHECK— Stable CRT display is presented.
n. Turn the TRIGGER control counterclockwise to the var
iable negative-slope area.
o. CHECK—Stable CRT display can be obtained with the
TRIGGER control.
p. Turn the TRIGGER control counterclockwise to the var
iable positive-slope area.
q. CHECK— Stable CRT display can be obtained with the
TRIGGER control.
r. Set the TRIGGER control to + AUTO.
s. CHECK—Stable CRT display is presented.
5-10
Содержание 323
Страница 4: ...Type 323 Fig 1 1 Type 323 Oscilloscope ...
Страница 14: ...Operating Instructions Type 323 2 2 Fig 2 1 External controls connectors and indicators ...
Страница 39: ...Circuit Description Type 323 3 4 Fig 3 3 Paraphase Am plifier simplified ...
Страница 51: ...Circuit Description Type 323 3 16 Fig 3 8 Blocking Oscillator simplified ...
Страница 71: ...Maintenance Type 323 4 15 Fig 4 13 Transistor data ...
Страница 72: ...Maintenance Type 323 4 16 Fig 4 14 M ain circuit board p a rtia l loft side vertical circuit components ...
Страница 147: ...T Y P E 3 2 3 O S C I L L O S C O P E B L O C K D IA G R A M MRI4 i ...
Страница 157: ...BL OCK DIAGRAM ...
Страница 158: ......
Страница 161: ...A TYPE 323 OSCILLOSCOPE ...
Страница 162: ...1 TYPE 323 OSCILLOSCOPE ...
Страница 163: ...FIG 2 CABINET ...
Страница 164: ...OPTIONAL ACCESSORIES 016 0119 00 1 POWER PACK 016 0112 00 1 COVER protective oscilloscope ...