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The common mode rejection ratio CMRR is a measure of susceptibility to common mode signals. In a sequence.

Fluke PM3084 Analog Oscilloscope

Every attenuator basically consists of four sections. The balanced input signal for triggering on vertical channels 1,2, 3 or flukd is applied to pin 7 and 8. The sections partly make use of the same components: Page 3 – Use terminations. As alternative you may use the fast-rise output of the square-wave calibration generator.

Fluke PM3082 Service Manual

VAR4 is varied between min and max in various sensitivity positions. Handle the CRT and its side connections carefully. An important part of the power supply is directly connected to the mains. TV pattern generator with video output PM test set-up: Page bcc U p BCC: On the power supply there are many parts that carry dangerous high voltages. The trigger sensitivity depends on the amplitude and frequency of the trigger signal.


A good knowledge of the circuitry of the oscilloscope is necessary to take advantage of these tests.

This feature is available in the Note 1: The horizontal MTB deflection coefficients can be varied in steps such as done in 6. Synchronization is achieved via SCL. For the MHz version the corresponding circuit diagram should be used. Page Page – Horizontal deflection; X deflection coef Page Probe Adjust signal is distortion-free cluke has equal intensity. The input signal is a current and is applied to V and Pm302 Remove the rotary knobs.

Refer to chapter 8.

Don’t have an account? Repeat the above settings and procedure for CH3 and CH4. Page This delay is verified in the following test. The x1 is switched by control signal PA1X1. Page 42 – Introduction The principle of the time base is that a capacitor is charged with a constant current.

This manual also for: Impedance converter This active stage consists of three sections with different frequency ranges. Main Time Base Description. Error Pm082 step Input Control signal Output Page The horizontal MTB deflection coefficients can be varied in steps such as done in 6. Therefore, it is recommended to wait at least five minutes after having disconnected the unit from the mains, before removing the unit.


The digital multimeter and oscilloscope are not required for this test. If working on the unit under live condition cannot be avoided, it must be done by a qualified technician who is aware of the dangers involved.

This gives a time-linear voltage across the capacitor; the so- called sawtooth or sweep signal. Adjust the input signal to an amplitude of exactly 6 divisions. Use a termination. The output signal is voltage and is applied to the vertical deflection plates of the CRT.

To reduce the rise of electric shock donot perform any servicing other than that contained in the operating It is also possible that the rotor makes no contact. ATCAL can supply several accurate voltages that are used for vertical calibrations.


Recommended Test Equipment Note: It can function on a wide range of LINE input voltages. Configuration of mmicroprocessor control part This diagram shows the final intensity Z and focusing amplifiers.

Page DC coupled mode.