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Adjustment Procedure— 2236 Service
d. Set:
HORIZONTAL MODE
B
A SEC/DIV
0.2
ms
B SEC/DIV
0.1
ms
e.
ADJUST— B High Speed Tinning (C713) for 1 time
marker per division over the center 8 divisions.
8. Adjust 5-ns Timing and Linearity (C775 and
C785)
a. Set:
CH 1 VOLTS/DIV
Horizontal POSITION
HORIZONTAL MODE
A SEC/DIV
X I0 Magnifier
0.2 V
Midrange
A
0.05
ms
On (knob out)
d.
Use the Horizontal POSITION control to align the sec
ond time marker with the second vertical graticule line.
e.
CHECK—Timing accuracy is within 2% (0.16 division
at the 10th vertical graticule line), and linearity is within 5%
(0.1 division over any 2 of the center 8 divisions).
NOTE
For checking the timing accuracy of the A SEC/DIV
switch settings from 50 ms to 0.5 s, watch the time
marker tips only at the 2nd and 10th vertical graticule
lines while adjusting the Horizontal POSITION control.
f.
Repeat parts c through e for the remaining A SEC/DIV
and time-mark generator setting combinations shown in Ta
ble 5-5 under the “Normal” column.
b. Select 10-ns time markers from the time-mark
generator.
c.
Align the time markers with the vertical graticule lines
using the Horizontal POSITION control.
d.
ADJUST—5-ns Timing (C775 and C785 alternately)
for one time marker every 2 divisions over the center 8 divi
sions of the magnified sweep.
e.
CHECK— Time markers between the 2nd and 4th ver
tical graticule lines should be aligned within 0.05 division. If
not, a slight compromise between timing and linearity
should be made by readjusting the 5-ns Timing capacitors
(C775 and C785).
9. Check Timing Accuracy and Linearity
a. Set:
CH 1 VOLTS/DIV
0.5 V
X I0 Magnifier
Off (knob in)
A TRIGGER Mode
NORM
b. Select 50-ns time markers from the time-marker
generator.
c.
Adjust the A TRIGGER LEVEL control for a stable,
triggered display.
Table 5-5
Settings for Timing Accuracy Checks
SEC/DIV
Time-Mark Generator Setting
Switch Setting
Normal
X I0 Magnified
0 .0 5
m s
5 0 ns
10 ns
0.1
ms
0.1
ms
10 ns
0 .2
m
s
0 .2
ms
2 0 ns
0 .5
m
s
0 .5
fis
50 ns
1 MS
1
m s
0.1 MS
2 MS
2 MS
0 .2
ns
5
MS
5 MS
0.5
m s
10 MS
10 MS
1
m s
2 0 MS
2 0
ms
2 MS
5 0
m
S
5 0
m s
5
m s
0.1 ms
0.1 ms
10 MS
0 .2 ms
0 .2 ms
2 0
ms
0 .5 ms
0 .5 ms
5 0
m s
1 ms
1 ms
0.1 ms
2 ms
2 ms
0 .2 ms
5 ms
5 ms
0 .5 ms
10 ms
10 ms
1 ms
2 0 ms
2 0 ms
2 ms
5 0 ms
5 0 ms
5 ms
A Sweep Only
0.1 s
0.1 s
10 ms
0.2 s
0.2 s
20 ms
0.5 s
0.5 s
50 ms
5-17
Содержание 2236
Страница 10: ...2236 Service viii The 2236 Oscilloscope ...
Страница 28: ...Specification 2236 Service 1 18 ADD JAN 1985 Figure 1 2 Physical dimensions of the 2236 Oscilloscope ...
Страница 74: ...Theory of Operation 2236 Service 3 30 ...
Страница 75: ...Theory of Operation 2236 Service Figure 3 13 Typical waveforms for the Delta Time function with Valt HI 3 31 ...
Страница 102: ...Performance Check Procedure 2236 Service 4 21 Figure 4 1 Test setup for DMM common mode check ...
Страница 240: ...2236 Service CTM INTERFACE SIGNALS F ig u re 9 4 O s c illo s c o p e b a sic b lo c k diag ram 4294 46 ...
Страница 241: ... VERT DEFL 2236 Service 4 2 0 6 3 5 4 2 0 4 4 7 F ig u re 9 5 O scillo sco p e d e ta ile d b lo c k diag ram ...
Страница 242: ...2236 Service 4204 34 Figure 9 6 CTM basic block diagram ...
Страница 243: ...DMM POWER S U P P LIE S 2236 Service F ig u re 9 7 C T M d e ta ile d b lo c k diag ram ...
Страница 253: ...A10 COUNTER TIMER MULTIMETER BOARD F ig u re 9 8 C irc u it b o a rd lo c a tio n Illu s tra tio n ...
Страница 254: ...S I 0 O I 5 1 S O i 4204 21 C IR C U IT BOARD INTERCONNECTIONS ...
Страница 255: ...2 2 3 6 S e rv ic e A ll c o m p o n e n ts on th e A 2 A tte n u a to r b o a rd are lo c a te d on D ia g r a m ...
Страница 267: ...1 2 3 4 5 6 7 8 9 J T K L M_ _ ___ N___l _ P____l S ...
Страница 271: ...1 2 3 4 5 6 7 8 9 lO P2SO O U1 A TRIGGER V T O W2500 5 A 223 R E V A P R W G ...
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Страница 285: ...A 6 F IL T E R B O A R D lo c a te d u n d e r H V S h ie ld ...
Страница 311: ...1 2 3 4 5 6 7 8 9 A I B L c T D T E t F ___ ____G____ ___ H___ j ____ J _j K j_ I ____i_ i___ N _ _ j___ P j S ...
Страница 313: ...2236 Service T O U I 3 0 0 4 8 K T O UI300 II S K 0 2 2 3 6 Z Z O A Z 2 OPTION IA ...
Страница 317: ...A 10 C O U N T E R T IM E R M U L T IM E T E R B O A R D A D J U S T M E N T LO C A T IO N S ...
Страница 319: ...2236 Service TROUBLESHOOTING GUIDE 4206 99 4204 69A ...
Страница 323: ...9 ...
Страница 324: ...2 REV APR 1986 ...
Страница 325: ...2236 SERVICE ...
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