Adjustment Procedure— 2236 Service
g. Repeat parts e and f until no further improvement is
noted.
f. Repeat parts b through d for Channel 1, adjusting Ch 1
2-mV Peak Comp (C26) in part d.
h. Set the CH 1 VOLTS/DIV switch to 5 mV.
i. Set the generator to produce a 5-division display.
g. Disconnect the test equipment from the instrument.
j. CHECK— Display aberrations are within 4% (0.2 divi
sion or less).
14. Check Trigger View Gain
a. Set:
k. Repeat part j for each of the following CH 1
VOLTS/DIV switch settings: 10 mV through 0.5 V. Adjust
the generator output and add or remove the 10X attenuator
VOLTS/DIV (both)
0.1 V
A SEC/DIV
0.2 ms
as necessary to maintain a 5-division display at each
VOLTS/DIV switch setting.
b. Connect a 0.5-V standard-amplitude signal via a 50-Q
cable to the CH 1 OR X input connector.
1. Move the cable from the CH 1 OR X input connector to
the CH 2 OR Y input connector. Set the VERTICAL MODE
switch to CH 2.
c. While holding in the TRIG VIEW button, use the A
TRIGGER LEVEL control to vertically center the display.
m. Set the generator to produce a 5-division display.
d. CHECK— Display amplitude is 4 to 6 divisions while
holding in the TRIG VIEW button.
n. Set the top of the display to the center horizontal grati
cule line using the Channel 2 POSITION control.
o. ADJUST— Ch 2 HF Comp (C180) for 2% overshoot
(0.1 division) on the displayed signal.
e. Move the cable from CH 1 OR X input connector to the
CH 2 OR Y input connector. Set the VERTICAL MODE
switch to CH 2.
p. Repeat parts h through k for Channel 2.
f. Repeat parts c and d.
13. Adjust 2-mV Peaking Compensation (C76 and
C26)
g. Move the cable from the CH 2 OR Y input connector to
the EXT INPUT connector. Set the A SOURCE switch to
EXT.
a. Set both VOLTS/DIV switches to 2 mV.
h. Repeat parts c and d.
b. Set the generator to produce a 5-division display.
i. Set the A EXT COUPLING switch to DC.
c. Set the top of the display to the center horizontal grati
cule line using the Channel 2 POSITION control.
j. Repeat parts c and d.
d. ADJUST— Ch 2 2-mV Peak Comp (C76) for 2% (0.1
division) overshoot of the displayed signal.
k. Set the A EXT COUPLING switch to D C --10.
e. Move the cable from the CH 2 OR Y input connector to
the CH 1 OR X input connector. Set the VERTICAL MODE
1. Set the generator to produce a 5-V signal.
switch to CH 1.
m. Repeat parts c and d.
5-11
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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Page 333: ...2236 SERVICE ...
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