Performance Check Procedure— 2236 Service
HORIZONTAL
Equipment Required (see Table 4-1):
Calibration Generator (Item 1)
50-fl BNC Cable (Item 8)
Leveled Sine-Wave Generator (Item 2)
50-fl BNC Termination (Item 9)
Time-Mark Generator (Item 3)
INITIAL CONTROL SETTINGS
Vertical
Channel 1 POSITION
Midrange
VERTICAL MODE
CH 1
BW LIMIT
Off (button out)
CH 1 VOLTS/DIV
0.5 V
CH 1 VOLTS/DIV
Variable
CAL detent
Channel 1 Input Coupling
DC
Horizontal
POSITION
Midrange
HORIZONTAL MODE
A
A SEC/DIV
0.05 nS
SEC/DIV Variable
CAL detent
X I0 Magnifier
Off (knob in)
B DELAY TIME
POSITION
Fully counterclockwise
B TRIGGER
SLOPE
OUT
LEVEL
Fully clockwise
A TRIGGER
VAR HOLDOFF
NORM
Mode
NORM
SLOPE
OUT
LEVEL
Midrange
A&B INT
VERT MODE
A SOURCE
INT
A EXT COUPLING
o
o
•I-
o
PROCEDURE STEPS
1. Check Timing Accuracy and Linearity
a.
Connect the time-mark generator output via a 50-fl
cable and a 50-fl termination to the CH 1 OR X input
connector.
b.
Select 50-ns time markers from the time-mark
generator.
c.
Use the Channel 1 POSITION control to center the
display vertically. Adjust the A TRIGGER LEVEL control for
a stable, triggered display.
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 4-4 under the “Normal” column.
g. Set:
A SEC/DIV
0.05 fis
X I0 Magnifier
On (knob out)
h. Select 10-ns time markers from the time-mark
generator.
i.
Use the Horizontal POSITION control to align the first
time marker that is 25 ns beyond the start of the sweep with
the second vertical graticule line.
4-9
Summary of Contents for 2236
Page 10: ...2236 Service viii The 2236 Oscilloscope ...
Page 74: ...Theory of Operation 2236 Service 3 30 ...
Page 102: ...Performance Check Procedure 2236 Service 4 21 Figure 4 1 Test setup for DMM common mode check ...
Page 242: ...2236 Service 4204 34 Figure 9 6 CTM basic block diagram ...
Page 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 ...
Page 254: ...S I 0 O I 5 1 S O i 4204 21 C IR C U IT BOARD INTERCONNECTIONS ...
Page 267: ...1 2 3 4 5 6 7 8 9 J T K L M_ _ ___ N___l _ P____l S ...
Page 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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Page 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 ...
Page 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 ...
Page 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 ...
Page 319: ...2236 Service TROUBLESHOOTING GUIDE 4206 99 4204 69A ...
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Page 324: ...2 REV APR 1986 ...
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