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Calibration— Type 503
a. Test setup is shown in Fig. 6-24.
b. Connect a 50 f i termination, a UHF T connector, and
two 50-ohm cables to the output connector o f the constant-
amplitude signal generator. If desired, tw o quick-connect
adapters (item 15 o f Recommended Equipment) may be
installed at the Type 503 input ends of the cables, to per
mit easy cable-switching,
NOTE
The tw o 5 0-ohm cables should be id e n tic a l to
assure a sym m etrical in p u t to the tw o a m p lifie rs
fo r phasing adjustm ents.
c. Connect the two cables to the VERTICAL and HORI
ZONTAL + INPUT connectors.
d. Adjust the generator output for a 6-cm display at
a frequency of 50 kHz, and center the display exactly with
the VERTICAL and HORIZONTAL POSITION controls.
e. Change the generator frequency to 450 kHz.
f. Check—A vertical trace > 4 .2 cm in length.
g. Adjust C419 for a trace ^ 4 . 2 cm in length. See Figs.
6-25 and 6-26 for interaction of phasing adjustments.
h. Move the signal cable from the VERTICAL -f INPUT
connector to the VERTICAL — INPUT connector, change the
VERTICAL + INPUT switch to GND, the VERTICAL -IN P U T
switch to DC, and repeat steps (e), (f), and (g).
i. Change the VERTICAL —INPUT switch to GN D , and
tho HORIZONTAL -fIN PU T switch to DC. The trace w ill
now be o horizontal line.
j. Repeat steps (o), (f), and |g) for tho horizontal trace.
k. Dress the CRT deflection plate leods (instrument left
side) for a trace > 4 .2 cm in length.
l
. Chongo tho HORIZONTAL -fIN PU T switch to GND,
and the HORIZONTAL -IN P U T switch to DC.
Fig. 6 -2 6 le c a rlo n o f phasing a d |u tlm o n l C 4 I9 lin ttru m o n t lo ft
• I d o l.
m. Move the signal cable from the HORIZONTAL - f IN
PUT connector to the HORIZONTAL —INPUT connector.
n. Repeat tho checks as in steps (e), (f), and (g).
o. Increoso tho generator output (at 450 kHz) to display
a trace exactly 6 cm long.
p. Change the VERTICAL -IN P U T switch to DC
The
trace w ill change to a straight line or flattened ellipse at
a 45* angle across the CRT screen. See Fig. 6-27 for ty p i
cal displays.
6 - 2 2
© i
Fig. 6 -2 7 . Typical displays, a m p lifie r phasing adjustment.
Содержание 503
Страница 5: ...Fig 1 1 Type 503 Oscilloscope Type 503 ...
Страница 10: ...O perating Instructions Type 503 2 3 Fig 2 2 Type 503 Oscilloscope front panel ...
Страница 23: ...NOTES ...
Страница 33: ...NOTES ...
Страница 49: ...Type 503 colibrotion__ 6 2 ...
Страница 78: ...NOTES ...
Страница 110: ... I N P U T INPUT E X T E R N A L TRIG IN LI N E INPUT INPUT A T Y P E B O 3 O S C I L L O S C O P E ...
Страница 111: ...G Ab A B L O C K D I A G R A M ...
Страница 112: ...T R K a G iE B IN P U T A M P L IF IE R T V p E 5 0 3 O SCILLO SCO PE D ...
Страница 114: ...h S W E E P B A T IN G M U L T I V I 6R A T O R D lS C O N N E D IO D E S EX TYPE 5 0 5 OSC 5 T SCOPE ...
Страница 115: ... D Z 2 I j O H OA uit zul Z Q 3 O 0 7 7 ...
Страница 116: ...c L O a l LLl A uJ u e x a uJ LLl t i ...
Страница 117: ... S W E E P T IM C m 1 1 SW IfeO 5F4 B 3F R I O O V T IM IN G P E S 1 S T 0 P S TYPE 5 0 3 OSC ILLO SCO PE B ...
Страница 118: ...0 S 2 J 7 ...
Страница 119: ... J 0 o lii I in I I I 2 z 3i i pfSg D T IM IN G i S W IT C H ...
Страница 121: ...n I u J a d i ...
Страница 132: ...FIG 1 FRONT ...
Страница 133: ...FIG 1 FRONT TYPE 503 OSCILLOSCOPE ...
Страница 134: ...FIG 2 SWITCHES ...
Страница 135: ...FIG 2 SWITCHES TYPE 503 OSCILLOSCOPE ...
Страница 136: ...FIG 3 CRT SHIELD 2 5 A I ...
Страница 137: ...FIG 3 CRT SHIELD f TYPE 503 OSCILLOSCOPE ...
Страница 138: ...FIG 4 CHASSIS REAI ...
Страница 139: ...TYPE 503 OSCILLOSCOPE ...
Страница 140: ...FIG 5 CABINET 7 ...
Страница 141: ...TYPE 503 OSCILLOSCOPE ...
Страница 147: ...Page 2 of 2 TYPE 505 SCHEMATIC CORRECTION P A R T I A L H O R I Z O N T A L A M P L I F I E R M13 963 568 ...