Performance Check Procedure— 2236 Service
j. Connect the cable to the CH 2 OR Y input connector
and set the VERTICAL MODE switch to CH 2.
k. Repeat parts c through h using the Channel 2
controls.
I. Disconnect the test equipment from the instrument.
5. Check Bandwidth
a. Set:
VOLTS/DIV (both)
2 mV
A SEC/DIV
20
i*S
b. Connect the leveled sine-wave generator output via a
50-Q cable and a 50-0 termination to the CH 2 OR Y input
connector.
c. Set the generator to produce a 50-kHz, 6-division
display.
d. CHECK— Display amplitude is 4.2 divisions or greater
as the generator output frequency is increased up to the
value shown in Table 4-3 for the corresponding VOLTS/DIV
switch setting.
Table 4-3
Settings for Bandwidth Checks
VOLTS/DIV
Generator
Switch Setting
Output Frequency
2 mV
90 MHz
5 mV to 5 V
100 MHz
e. Repeat parts c and d for all indicated CH 2 VOLTS/
DIV switch settings, up to the output-voltage upper limit of
the sine-wave generator being used.
f. Move the cable from the CH 2 OR Y input connector to
the CH 1 OR X input connector. Set the VERTICAL MODE
switch to CH 1.
g. Repeat parts c and d for all indicated CH 1 VOLTS/
DIV switch settings, up to the output-voltage upper limit of
the sine-wave generator being used.
6. Check Bandwidth Limit Operation
a. Set:
BW LIMIT
On (button in)
CH 1 VOLTS/DIV
10 mV
A SEC/DIV
20
fis
b. Set the generator to produce a 50-kHz, 6-division
display.
c. Increase the generator output frequency until the dis
play amplitude decreases to 4.2 divisions.
d. CHECK— Generator output frequency is between 18
and 22 MHz.
e. Disconnect the test equipment from the instrument.
7. Check Common-Mode Rejection Ratio
a. Set:
BW LIMIT
Off (button out)
CH 2 VOLTS/DIV
10 mV
INVERT
On (button in)
b. Connect the leveled sine-wave generator output via a
50-Q cable, a 50-Q termination, and a dual-input coupler to
the CH 1 OR X and the CH 2 OR Y input connectors.
c. Set the generator to produce a 50-MHz, 6-division
display.
d. Vertically center the display using the Channel 1
POSITION control. Then set the VERTICAL MODE switch
to CH 2 and vertically center the display using the Channel 2
POSITION control.
e. Set the VERTICAL MODE switches to BOTH and
ADD.
f. CHECK— Display amplitude is 0.6 division or less.
g. If the check in part f meets the requirement, skip to
part p. If it does not, continue with part h.
h. Set the VERTICAL MODE switch to CH 1.
4-7
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 ...
Page 323: ...9 ...
Page 324: ...2 REV APR 1986 ...
Page 325: ...2236 SERVICE ...
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