Operating Information— 2230 Service
OPERATING CONSIDERATIONS
This part contains basic operating information and tech
niques that should be considered before attempting to
make any measurements with the instrument.
GRATICULE
The graticule is internally marked on the faceplate of
the crt to eliminate parallax-viewing errors and to enable
measurements (see Figure 2-13). The graticule is marked
with eight vertical and ten horizontal major divisions. In
addition, each major division, is divided into five subdivi
sions. The vertical deflection factors and horizontal timing
are calibrated to the graticule so that accurate measure
ments can be made directly from the crt. Also, percentage
marks for the measurement of rise and fall times are
located on the left side of the graticule.
GROUNDING
The most reliable signal measurements are made when
the oscilloscope and the unit under test are connected by
a common reference (ground lead) in addition to the signal
lead or probe. The probe's ground lead provides the best
grounding method for signal interconnection and ensures
the maximum amount of signal-lead shielding in the probe
cable. A separate ground lead can also be connected from
the unit under test to the oscilloscope GND receptacle
located on the oscilloscope’s front panel.
SIGNAL CONNECTIONS
Probes
Generally, the accessory probes supplied with the
instrument provide the most convenient means of connect
ing a signal to the vertical inputs of the instrument. The
probe and probe lead are shielded to prevent pickup of
electromagnetic interference, and the 10X attenuation fac
tor of the probe offers a high input impedance that mini
mizes signal loading in the circuitry under test. The
attenuation factor of the standard accessory probe is
coded so that the VOLTS/DIV readout seen on the crt is
automatically switched to the correct scale factor when
the probe is attached.
Both the probe itself and the probe accessories should
be handled carefully at all times to prevent damage to
them. Avoid dropping the probe body. Striking a hard sur
face can cause damage to both the probe body and the
probe tip. Exercise care to prevent the cable from being
crushed or kinked. Do not place excessive strain on the
cable by pulling.
The standard-accessory probe is a compensated 10X
voltage divider. It is a resistive voltage divider for low fre
quencies and a capacitive voltage divider for high-
frequency signal components. Inductance introduced by
either a long signal or ground lead forms a series-resonant
circuit. This circuit will affect system bandwidth and will
ring if driven by a signal containing significant frequency
2-23
Figure 2-13. Graticule measurement markings.
Содержание 2230
Страница 12: ...2230 Service X The 2230 Digital Storage Oscilloscope 4998 01 ...
Страница 32: ...Operating Information 2230 Service 4998 04 Figure 2 4 Power and display controls and power on indicator 2 5 ...
Страница 33: ...Operating Information 2230 Service Figure 2 5 Vertical controls and connectors 2 6 ...
Страница 48: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Страница 56: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Страница 68: ...Operating Information 2230 Service Figure 2 11 X Y Plotter interfacing ...
Страница 76: ...Theory of Operation 2230 Service 4999 01 3 2 Figure 3 1 Simplified block diagram ...
Страница 82: ...Theory of Operation 2230 Service 510 499 9 02 Figure 3 2 Block diagram of the Channel 1 Attenuator circuit 3 8 ...
Страница 98: ...Theory of Operation 2230 Service 499 9 06 Figure 3 6 Horizontal Amplifier block diagram 3 24 ...
Страница 111: ...Theory of Operation 2230 Service 3 37 Figure 3 9 Acquisition Memory timing ...
Страница 190: ...Maintenance 2230 Service 999 14 Figure 6 3 Isolated kernel timing 6 9 ...
Страница 218: ...Maintenance 2230 Service 4999 37 Figure 6 7 Location of screws and spacers on the Storage circuit board 6 37 ...
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Страница 362: ...2230 Service TEST SCOPE TRIGGERED ON U665 PIN 8 FOR WAVEFORMS 31 THROUGH 33 ...
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Страница 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 ...
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Страница 371: ...Static Sensitive Devices See Maintenance Section CM I rv CD o 2230 Service ...
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Страница 394: ...2230 Service TEST SCOPE TRIGGERED ON U911 PIN 21 FOR WAVEFORMS 64 THROUGH 69 4999 92 ...
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Страница 397: ...WAVEFORMS FOR DIAGRAM 15 TEST SCOPE TRIGGERED ON U9111 PIN 21 FOR WAVEFORMS 70 THROUGH 77 ...
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Страница 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 ...
Страница 421: ...TEST SCOPE TRIGGERED ON U4105 PIN 9 FOR WAVEFORMS 121 AND 122 TEST SCOPE TRIGGERED ON U4227 PIN 10 i 4999 97 ...
Страница 423: ...W A V E F O R M SF O RD IA G R A M1 8 O c n ...
Страница 424: ...Figure 9 22 A11A1 Input Output board ...
Страница 427: ...WAVEFORMS FOR DIAGRAM 19 TEST SCOPE TRIGGERED ON U6103 PIN 1 FOR WAVEFORMS 126 AND 127 4999 98 ...
Страница 430: ...Figure 9 23 A11A2 Vector Generator board ...
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Страница 443: ...XY PLOTTER BOARD DIAGRAM 22 See Parts List for serial number ranges ...
Страница 444: ... u i o IO U J J i o D U I 1 t ir u j t O 0 X I c a a 3 4 2230 4999 71 REV FE8 1987 XY PLOTTER BOARD 22 ...
Страница 447: ...A21 RS 232 OPTION BOARD Flfi A 9 K 01 01 W M ...
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Страница 452: ...COMPONENT NUMBER EXAMPLE ...
Страница 455: ...r n n i i i i n O T IA ll D A A o n XY PLOTTER BOARD P in A23 OPTION MEMORY BOARD FIG 9 27 A22 GPIB OPTION BOARD ...
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