Analysis
R&S
®
RTC1000
81
User Manual 1335.7352.02 ─ 02
Risk of instrument damage
Observe the necessary precautions when handling MOS components. They can be
destroyed by static charges or tribo electricity.
6.7.1 In-circuit Tests
In-circuit tests are possible but often do not deliver clear results. By paralleling of real
or complex impedances – especially if those are of fairly low impedance at 50 Hz/200
Hz – there are mostly great differences compared to individual components. If circuits
of the same type have to be tested often (service), comparisons with intact circuits can
help again. This is also quickly done because the intact circuit has not to be functional,
also it must not be energized.
To test circuits of the same type
1. Probe the various test points of the unit under test with the cables of the compo-
nent tester.
2. Probe the various test points of the intact unit with the cables of the component
tester.
3. Compare the screen displays.
Sometimes the unit under test can already contain an intact portion of the same
type, for example, with stereo circuits, push-pull circuits or symmetrical bridge cir-
cuits.
4. In cases of doubt, unsolder one side of the dubious component.
6.8 Digital Voltmeter
The digital voltmeter captures all input data with the selected vertical sensitivity and the
basic accuracy of the ADC. The digital voltmeter is independent from the capture set-
tings and the post processing of the transformer values. Measurement values are
determined using the measurement interval to ensure the defined frequency range of
20 Hz to 100 kHz. The measurement interval of the digital voltmeter is not the acquisi-
tion time interval. Therefore, the measurement values of the digital voltmeter cannot be
the same as the measurement values of the AUTO MEASURE values.
1. Press the UTIL key in the Vertical section.
2. Press "DIG. VOLTMETER".
The digital voltmeter has a 3-digit voltage display.
3. You can set four configurable measuring displays. For each channel, you can mea-
sure and display two values:
Digital Voltmeter
