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Check kHz bandwidth, paragraph Include your e-mail address; I need that because you can’t attach files to PMs. Most of my test equipment is fairly easy to use and I have had previous experience with similar items and their applications.
Note the inverted marker below the bot- tom graticule line.
Calibrator Output cont’d 1. Table lists assemblies within the instru- ment that may be replaced on an exchange basis, thus affording considerable cost savings. Encloses wire color code. It’s like having the store come to you!
Spectrum Analyzer System 141T / 8552B / 8554B
Figure shows examples of some diode marking methods. Circuit descriptions and test procedures for the second maintenance level are located on the page facing the schematic diagram of the circuit to be repaired. This requires good thermal contact with mounting surfaces.
PageFigureService Sheet R44 calibrates the 12 dB maximum and R51 calibrates the 0 dB minimum.
The dc levels eventually set the center frequency of the 47 MHz VTO — the ramp will sweep it symmetrically about that fre- quency. When the analyzer is operated in the 3 kHz BANDWIDTH mode all of the switching diodes are reverse biased and the inherent characteristics of the filter plus the fixed output load determines the filter bandwidth. Clipper override functions properly. Make the following control settings: The locations 8552g individual components mounted on printed circuit boards or other assem- blies are shown on the appropriate schematic dia- gram page or on the page opposite it.
IF Section Display Adjustments.
Hewlett Packard HP 8552B Spectrum Analyzer – If Section
Calibrator Amplitude Test Setup Service Sheet 8 Schematic: The total quantity for each part is given only once — at the first appearance of the part number in the list. Selects scan trigger mode. The kit can be obtained by contacting 88552b nearest Hewlett-Packard Sales and Service office. Change the Schematic as shown in Figure Gain of the amplifier is con- trolled by networks in the emitter of Q5.
The harmonics of the fundamental frequency are also useful in evaluating analyzer performance. Increase the signal generator level to -t dBm. Performance Check Test Record 5- 1. Scan internally synchronized to envelope of RF input signal signal amplitude of 1. If the voltage at Ul or U2 was incorrect, check 855b IC and 8552h circuitry. No attempt is made in this procedure to iso- late causes of trouble to the component level.
Crystal Filter Fine Adjustment para. I think I should pick up a B unit as well in the near future to have on hand.
The first seven amplifiers consist of a differential amplifier followed by an emitter follower. The oscillator levels are set and checked and the phase lock loop is checked. Crystal Filter Sheet 2.
The local Hewlett-Packard office will arrange for immediate airmail shipment to minimize equipment downtime. Connect the test setup shown in Figureturn analyzer power ON, and set controls as follows: Same as basic except: If the signal were correct at all bandwidths, pro- ceed to step Q.
Signal should be about 8 mV rms. 8525b
Filename Filesize Model Description hpa. Proceed to test The various sections in this manual provide information as follows: Place your fingers across the last Crystal Filter Bandpass Network. This will dampen the oscillations while the adjustments are being made.
Keysight / Agilent B – In Stock, We Buy Sell Repair, Price Quote
Initial inspec- tion is based on the premise that the RF and IF Sections are installed in the Display Section; thus the instrument is physically and functionally com- plete for test.
Perform the tests in the order given, and record data on the test card Table at the end of this section. The table of accessories gives the name and number of the Posidriv screwdrivers designed h; fit these screws.