u. Repeat parts b through s for Channel 2 attenuators.
Adjustment Procedure— 2230 Service
v. Disconnect the test equipment from the instrument.
19. Adjust High-Frequency Compensation
(C237, R240 and R241)
and Channel 2 High-Frequency Compensation
(C180)
a. Set:
17. Check Alternate Operation
a. Set:
VERTICAL MODE
AC-GND-DC (both)
A and B SEC/DIV
A&B INT
BOTH and ALT
GND
50 ms
CH 1
b. Position the Channel 1 and Channel 2 traces about
2 divisions apart using the Channel 1 and Channel 2
POSITION controls.
c. CHECK— Sweeps alternate for all the A SEC/DIV
switch settings.
NOTE
At sweep speeds of 2 ms per division or faster, the
trace alternations occur too rapidly to be observed.
VERTICAL MODE
BW LIMIT
VOLTS/DIV (both)
AC-GND-DC (both)
A SEC/DIV
A SOURCE
CH 1
Off (button out)
10 mV
DC
0.05 jis
INT
b. Connect the positive-going fast-rise square wave
output via a 50 Q cable, a 10X attenuator, and a 50 Q ter
mination to the CH 1 OR X input connector.
c. Set the generator to produce a 1 MHz, 5-division
display.
d. Set the top of the display to the center horizontal
graticule line using the Channel 1 POSITION control.
e. ADJUST— HF Comp (C237) for 2% overshoot (0.1
division) on the displayed signal.
18. Check Chop Operation
a. Set:
f. ADJUST— HF Comp (R240 and R241) for best flat
top on the front corner.
VERTICAL MODE
BOTH and CHOP
g. Repeat parts e and f until no further improvement is
A SEC/DIV
1
nS
noted.
A&B INT
VERT MODE
A SOURCE
EXT
h. Set the CH 1 VOLTS/DIV switch to 5 mV.
b. Connect the 10X
probe to the EXT INPUT
connector.
i. Set the generator to produce a 5-division display.
c. Connect the 10X probe tip to TP537.
j. CHECK— Display aberrations are within 4% (0.2 divi
sion or less).
d. CHECK— Period of one complete square-wave cycle
is between 1.6 and 2.6 horizontal divisions.
e. Disconnect the 10X probe from TP537 and the EXT
INPUT connector.
f. CHECK—Two traces are visible for all A SEC/DIV
switch settings.
k. Repeat part j for each of the following CH 1
VOLTS/DIV switch settings: 5 mV through 0.5 V. Adjust
the generator output and add or remove the 10X
attenuator as necessary to maintain a 5-division display at
each VOLTS/DIV switch setting.
I. 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.
5-13
Summary of Contents for 2230
Page 12: ...2230 Service X The 2230 Digital Storage Oscilloscope 4998 01 ...
Page 33: ...Operating Information 2230 Service Figure 2 5 Vertical controls and connectors 2 6 ...
Page 48: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Page 56: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Page 68: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Page 76: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Page 98: ...Theory of Operation 2230 Service 499 9 06 Figure 3 6 Horizontal Amplifier block diagram 3 24 ...
Page 111: ...Theory of Operation 2230 Service 3 37 Figure 3 9 Acquisition Memory timing ...
Page 190: ...Maintenance 2230 Service 999 14 Figure 6 3 Isolated kernel timing 6 9 ...
Page 329: ...PUT Figure 9 2 S em ico n d u cto r lea d co n fig u ratio n s ...
Page 332: ...2230Service CHASSIS MOUNTED PARTS ...
Page 334: ...A14 CH 1 LOGIC BOARD ...
Page 337: ......
Page 344: ...u sr z z o 1 ...
Page 347: ...i n 5 a O Q q o u S a o h UJ s a b c d e f g h j k l m n ...
Page 352: ......
Page 355: ...WAVEFORMS FOR DIAGRAM 5 4999 83 ...
Page 358: ...I W L U O U rc a 4 2 s ...
Page 361: ...WAVEFORMS FOR DIAGRAM 6 S 84 ...
Page 362: ...2230 Service TEST SCOPE TRIGGERED ON U665 PIN 8 FOR WAVEFORMS 31 THROUGH 33 ...
Page 365: ... I I ...
Page 366: ...A 1 6 S W E E P R EFEREN CE BOARD FIG 9 17 2230 Service Figure 9 17 A16 Sweep Reference board ...
Page 369: ... o 0 UJU sa eg aiu c u J in su eg 5 C sis n g e s o N QO ...
Page 371: ...Static Sensitive Devices See Maintenance Section CM I rv CD o 2230 Service ...
Page 378: ......
Page 384: ... I I c o C u o a 5 r O tD v j If 3 IV if I I ci if 5 3 I ...
Page 386: ......
Page 388: ...H K L M N 7 8 8 2 2 3 0 INPUT OUTFUT WIRING INTERCONNECT ...
Page 392: ...W A V E F O R M S F O R D IA G R A M 14 ...
Page 393: ...2230Service 0 0 d s t 4 9 9 9 9 5 ...
Page 394: ...2230 Service TEST SCOPE TRIGGERED ON U911 PIN 21 FOR WAVEFORMS 64 THROUGH 69 4999 92 ...
Page 396: ... ...
Page 397: ...WAVEFORMS FOR DIAGRAM 15 TEST SCOPE TRIGGERED ON U9111 PIN 21 FOR WAVEFORMS 70 THROUGH 77 ...
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Page 415: ...IMF PU TPR A IR TM FQ U I W A V E F O R M SF O RO IA G R A M1 5 W A V E F O R M SF O R i ...
Page 417: ...4999 9S ...
Page 419: ...i s 5 0 C C p F 2 CC p 2 a u 4 I s c c O 2 e e o 5 a o 5 i 2 i f 2 E C 52 ...
Page 423: ...W A V E F O R M SF O RD IA G R A M1 8 O c n ...
Page 424: ...Figure 9 22 A11A1 Input Output board ...
Page 430: ...Figure 9 23 A11A2 Vector Generator board ...
Page 434: ...49 9 9 tOO ...
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Page 437: ...22 3 0 S ervice W A V E F O R M S F O R D I A G R A M 2 1 m f n h ...
Page 442: ...WAVEFORMS FOR DIAGRAM 22 4999 78 ...
Page 443: ...XY PLOTTER BOARD DIAGRAM 22 See Parts List for serial number ranges ...
Page 447: ...A21 RS 232 OPTION BOARD Flfi A 9 K 01 01 W M ...
Page 450: ......
Page 452: ...COMPONENT NUMBER EXAMPLE ...
Page 459: ...A16 SWEEP REFERENCE ADJUSTMENT LOCATION ...
Page 467: ...2230 Service ...
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Page 477: ... D ...
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