HP 1740A PDF

A Oscilloscope Operating and Service Manual. Part Number: ( Aug 76). The A is no longer sold by Keysight; this manual is provided for. To buy, sell, rent or trade-in this product please click on the link below: http://www · MODEL A. OSCILLOSCOPE. HEWLETT-PACKARD COMPANY/ COLORADO SPRINGS DIVISION. GARDEN OF THE GODS ROAD, COLORADO.

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The cathode voltage will vary between — V to — V, depending on component tolerances of A15R13 1740x A15R22 and is not adjust- able. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Schematic 1, Make changes shown in figure L Return Model A controls to initial settings and disconnect equipment.

Keysight Technologies (Agilent HP) A used or new for sale at used-line

Hi Eric Have done the modification with the results attached. Option replaces the standard de- tachable power cord with a captive power cord. DELAY o control may be adjusted to view other pulses in the pulse train.

TK Best trigger mode. Set sweep display to MAIN. To reinstall, reverse removal procedure see figure These resistors control current ratios determining the gain of analog multiplier sections in each channel.

A User Manual – A Oscilloscope from HP

Main Sweep Fine Adjustment. Adjust oscillator for 0. Rise time should be equal to or less than 3. Just got an HP A.

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The displayed signal is the common mode signal. A3 A l Removal h Change signal generator controls to obtain a 1-division signal at MHz. Description of the part, including function and location in the instrument.

When this sweep start signal goes low, the delayed integrator no longer follows the reset level, but ramps up at a slope determined by the selected integrating capacitor and selected current source resis- tor. The instrument is normally set at the factory for volt operation. All the etched circuit boards have plated-through component holes.

Adding the two R has shown that the two left side transistors are correctly biassed.

Technical Support

Adjust square-wave generator output for 6 divisions of 17440a amplitude ,6V at 5 kHz. Clean and lubricate contacts on etched circuit board and rotors as described in paragraph A8C14 to PF.

The attenuators have two functions: Verify that all circuit board connections are making good contact and are not shorting to an adjacent circuit.

Indicator lights when the instrument power is on. As long as the trigger signal is absent, the bright-line auto circuit loop operates as follows. Hollow cathodes can be detected by in- creasing intensity. It should be free of mars or scratches and in perfect elec- trical order upon receipt. The change corrects the rectified cathode volt- age n turning it to t le normal operating value.

The output of a signal generator is applied to the vertical input to check internal trig- gering. Channels A and B of the vertical preamplifier are shut off. Set front-panel controls in accordance with initial control settings in Section V, except as follows: Adjust sync A bal.

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This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Output of the multiplier approximately 13 kV is applied to the post-accelerator connector on the CRT. See introduction to this section for ordering information Model A Replaceable Parts Table For mV div and mV div, the second attenuator section again steps to the X2 and X4 attenuation ranges. The positive-going ramp of the main sweep is also applied to pin 9 of delay comparator A7U4, which controls arming of the delayed sweep.

Remove metal retainer ring from rotor switch and separate two sections. Any change in the specifications due to manufac- turing, design, or traceability to the U.

Deflection Factor Accuracy Remove five screws holding A16 to chassis. However, they are most likely caused by defective amplifiers or improper adjustment. Can anyone help or advise? Change to HP Part, No.

Other probes listed under Accessories Available, which are more suitable, may be specified. Perform calibrator test as follows: Triggering is same as Normal above 40 Hz.