HP 11793A manual Instrument Disassembly Procedure

Page 38

Microwave Converter

Model 11793A

4.Insert the paper under one of the contacts, and while pressing gently on the contact, slide the paper through. Do not allow the alcohol to run inside the switch assembly. Do not allow the paper to shred. Do this several times and repeat for the other switch contact.

5.Saturate the edge of another sheet of paper with a freon-type degreaser and repeat step 4.

6.Remove any shreds of paper that may have lodged in the contacts.

7.Reinstall the switch cover. Note the orientation of the feedthrough terminals on the cover with respect to the switch contacts.

8.Replace the switch according to Paragraphs 4 1 or 42, RF Module assembly procedures.

37.Instrument Disassembly Procedure

The 11793A Microwave Converter uses metric connecting hardware in the form of 3 mm (T10) and 4

mm(TlS) Torxhead screws (except for two small English thread Pozidriv screws mounting U1 to MP17). Use the Torxhead size T 10 and T 15 bits that are provided, to disassemble and re-assemble the instrument. The recommended torque wrench for use with the Torxhead bits may be ordered as HP part number 8730-0012.

The major component blocks of the 11793A Microwave Converter are MP14 (RF Signal Processing Module), A1 (A1 Switch Control Assembly), and T1 (Power Transformer). The RF module and the A1 assembly are mounted on MP13 (the Main Deck). The power transformer is mounted on MP2, the instrument chassis left side strut. See Figures 6, 7, and 8 to locate and identify parts and assemblies.

Note that Option 020 and 021 instruments differ from the standard and other option models in that the main deck and transformer locations inside the instrument are reversed when compared to the standard and other option models as shown in Figures 7 and 8. In Option 020 and 021 models, the RF module is in the rear of the instrument), and the transformer is mounted in the front left corner.

The following procedures allow the removal of the Microwave Converter components from within the instrument chassis.

1.Remove the top and bottom covers by loosening the screw in the middle of each cover rear edge. These are captive screws and will cause the cover to push away from the front frame. Slide each cover toward rear of the instrument to disengage, then lift up and away from the instrument.

2.Remove the side covers in the same manner as that of the top and bottom covers.

3.Remove the plastic trim from the top of the front frame by inserting a screwdriver into the rear slots and gently prying up the strip.

4.Disconnect J8 on the rear panel by removing the 9/16 inch retaining nut and lock washer.

5.Instruments with serial number prefix 2S20A have MP8 (back panel) riveted to MP3 (rear frame). To remove the rear frame, unscrew the four corner screws that connect MP2 (side struts) to MP3. Pull off the two wires 05 and 0 (black/green and black) on the LINE VOLTAGE switch (both wires are of the quick disconnect type).

For instruments with serial number prefix 2407A, remove MP8 (back panel) from MP3 (rear frame) by unscrewing eight screws. Pull off the two wires OS and 0 (black/green and black) on the LINE VOLTAGE switch (both wires are of the quick disconnect type).

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Contents HP 11793A Warranty AgiIent TechnoIogies Microwave Converter Regulatory Information Safety Considerations Safety Considerationsfor this Instrument Product Markings Safety Considerations Microwave Converter Specifications General InformationPage HP 11 793A Option Guide Microwave Converter Model 11793A Model 11793A Microwave Converter Mating Connectors Power RequirementsPower Cables Line Voltage SelectionI0 0.J Rack Mounting Operating EnvironmentBench Operation Storage and ShipmentOperation Operating InstructionsOperator Checks Panel FeaturesOperator Maintenance Front-Panel Features Performance Tests Description EquipmentReplaceable Parts AdjustmentsReplaceable Parts List Page Model 11793A Replaceable Parts Model 11793A Replaceable PartsReplaceable Parts Model 1 1793A Code List of Manufacturers Cabinet Parts Illustrated Parts Breakdown for Standard and Option Microwave Converter Model Service Pin Troubleshooting GeneralDevice Repair Cleanliness Cleaning the Control-Line Switch ContactsInstrument Disassembly Procedure Instrument Assembly Procedure Page Page Page Page Page Model 11793A Microwave Converter Microwave Signal DOWN-CONVERSION L Ill Ss2 Ss3 Regional Sales and Service Offices

11793A specifications

The HP 11793A is a precision electronic component designed for high-frequency signal processing and transmission, primarily used in laboratory and industrial applications. This device exemplifies HP's longstanding commitment to quality and innovation in the world of electronic instrumentation.

One of the notable features of the HP 11793A is its ability to handle a wide frequency range, making it suitable for a variety of tasks, including signal analysis, modulation, and demodulation. This versatility is complemented by its excellent linearity and low distortion, which are critical factors for applications that require high accuracy and reliability in signal representation.

The HP 11793A employs advanced technologies that enhance its performance and usability. One of the key technologies is its robust signal conditioning capabilities, which allow it to filter and amplify signals effectively. This ensures that even weak signals can be accurately processed, significantly improving measurement reliability. Furthermore, the device uses cutting-edge materials and manufacturing processes to minimize noise and interference, paving the way for clearer and more precise signal outputs.

Another significant aspect of the HP 11793A is its user-friendly interface. Designed with the operator in mind, the device features intuitive controls and a well-organized display, enabling quick adjustments and easy monitoring of parameters. This ergonomic design is particularly beneficial in high-pressure environments where time is crucial, allowing technicians and engineers to focus on their tasks without being bogged down by complicated procedures.

Reliability is paramount in any electronic component, and the HP 11793A does not disappoint. Built to withstand rigorous testing and prolonged usage, it boasts a durable construction that ensures longevity. The device also adheres to strict safety and performance standards, providing users with peace of mind.

In conclusion, the HP 11793A combines high-frequency signal processing capabilities, advanced signal conditioning technologies, user-friendly design, and robust reliability. These features make it an essential tool for professionals in the fields of electronics, telecommunications, and research laboratories, contributing to a more efficient and effective workflow in high-precision tasks. Whether for development, testing, or analysis, the HP 11793A stands out as a notable choice in the realm of electronic instrumentation.
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