Adjustment Procedure— 2230 Service
Table 5-2
Power Supply Limits
Power
Test
Reading
Supply
Point
(Volts)
-8 .6 V
W961
-8 .5 6 to -8.6 4
-5 .0 V
W9020
-4 .7 5 to -5.2 5
+5.0 V
W9068
+4.75 to +5.25
+ 8.6 V
W960
+ 8.43 to +8.77
+30 V
W956
+29.1 to +30.9
+ 100 V
W954
+97.0 to +103.0
d. ADJUST—Grid Bias (R851) for a visible dot. Then
back off the Grid Bias potentiometer until the dot just
disappears.
e. Disconnect the 50 0 termination from the EXT
Z AXIS INPUT connector.
3. Adjust Astigmatism (R874)
a. Set:
A INTENSITY
Visible display
X-Y
Off (button out)
Channel 1 AC-GND-DC
DC
A SEC/DIV
5 ^
b.
Connect the leveled sine-wave generator output via
a 50 Q cable and a 50 D termination to the CH 1 OR X
input connector.
c.
Set the generator to produce a 50 kHz, 4-division
display.
d.
ADJUST—Astig (R874) and the front-panel FOCUS
control for the best defined waveform.
e. Disconnect the test equipment from the instrument.
4. Adjust Trace Alignment
a.
Position the trace to the center horizontal graticule
line.
b.
ADJUST—The front-panel TRACE ROTATION con
trol for optimum alignment of the trace with the center hor
izontal graticule line.
5. Adjust Geometry (R870)
a. Set:
CH 1 VOLTS/DIV
50 mV
A SEC/DIV
0.1 ms
b.
Connect 50
ns
time markers from the time-mark
generator via a 50 Q cable and a 50 ft termination to the
CH 1 OR X input connector.
c.
Adjust the Channel 1 POSITION control to position
the baseline part of the display below the bottom horizon
tal graticule line.
d.
Adjust the SEC/DIV Variable control for 5 markers
per division.
e.
ADJUST—Geom (R870) for minimum curvature of
the time markers at the left and right edges of the
graticule.
f. Set the Channel 1 AC-GND-DC switch to GND.
g.
ADJUST—Geom (R870) for minimum curvature of
the baseline trace when positioned at the top and bottom
horizontal graticule lines using the Channel 1 POSITION
control.
h. Set the Channel 1 AC-GND-DC switch to DC.
i.
Repeat parts e through h for optimum compromise
between the vertical and horizontal displays.
j. Disconnect the test equipment from the instrument.
5-5
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 ...
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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 ...
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Page 452: ...COMPONENT NUMBER EXAMPLE ...
Page 459: ...A16 SWEEP REFERENCE ADJUSTMENT LOCATION ...
Page 467: ...2230 Service ...
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