Hewlett Packard 140B Oscilloscope
Manufacturer:
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Model:
140B
Date:
1969
Category:
Group:
Description:
Information
The HP Model 140B is a general purpose Plug-In Oscilloscope.
The deflection amplifiers are of the Plug-In type and the
Oscilloscope contains only the Power supply, calibration,
and CRT circuits. The Plug-In amplifiers operate directly
into the CRT, therefore the Oscilloscope characteristics
depend upon the plug-ins used. Presently available plug-ins
make possible high sensitivity, wide bandwidth, and single,
dual, or four trace measurements in combination with normal,
single, or delayed sweeps. Double-sized plug-ins are also
available for special applications such as time domain
reflectometry, swept frequency indication, and spectrum
analysis.
1-3. The Model 140B provides power for the plug-ins and
line-frequency square wave calibrating voltages of 10 volts
and 1 volt peak-to-peak which are available on the front
panel. The primary power switch and all CRT controls are on
the Model 140B front panel, and the terminals and switch for
Z-axis modulation are on the rear panel.
1-4. CATHODE-RAY TUBE.
1-5. The Model 140B has an internal graticule CRT that
eliminates parallax error when observing the display. The
CRT is equipped with a nonglare safety face plate.
Manual type:
Service and User Manual
Pages:
49
Size:
2.68 Mbytes (2805348 Bytes)
Language:
english
Revision:
Manual-ID:
00140-90909
Date:
01 February 1969
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
31 December 2017
MD5:
1ff8738c919b5c8d6505804f5dc44ee6
Downloads:
396
Information
GENERAL INFORMATION ... 1-1
1-1. Description ... 1-1
1-4. Cathode-Ray Tube ... 1-1
1-7. Cathode-Ray Tube Warranty ... 1-1
1-9. Associated Equipment ... 1-1
1-12. Manual Identification ... 1-2
1-14. Scope of Manual ... 1-2
II INSTALLATION ... 2-1
2-1. Initial Inspection ... 2-1
2-4. Preparation for Use ... 2-1
2-5. Power Requirements ... 2-1
2-7. 230 Volt Operation ... 2-1
2-9. Three Conductor Power Cable ... 2-1
2-11. Cooling ... 2-1
2-12. Ventilation Requirements ... 2-1
2-14. Fan and Air Filter ... 2-1
2-16. Instrument Mounting ... 2-1
2-17. Modular Cabinet ... 2-1
2-19. Rack Mounting ... 2-1
2-21. Amber Fliter Installation ... 2-1
2-23. Claims and Repackaging ... 2-2
III OPERATING INSTRUCTIONS ... 3-1
3-1. Introduction ... 3-1
3-3. Controls and Indicators ... 3-1
3-4. Front Panel ... 3-1
3-9. Rear Panel ... 3-1
3-12. Plug-in Units ... 3-1
IV PRINCIPLES OF OPERATION ... 4-1
4-1. Over-all Functional Description
4-6. Circuit Description ... 4-1
4-7. Low-Voltage Supply ... 4-1
4-15. Calibrator ... 4-2
4-19. High-Voltage Supply ... 4-3
4-25. Trace Align ... 4-3
4-27. Plug-In Kit Fabrication ... 4-3
Section Title Page
V PERFORMANCE CHECK AND
ADJUSTMENTS ... 5-1
5-1. Introducation ... 5-1
5-3. Performance Check ... 5-1
5-4. CRT Controls ... 5-1
5-6. Adjustments ... 5-1
5-11. Adjustments of Low-Voltage
Supplies ... 5-1
5-13. Adjustments of High-Voltage
Supplies ... 5-2
5-14. Intensity Limit Adjustment ... 5-2
5-15. Astigmatism Adjustment ... 5-2
5-16. Geometry Adjustment ... 5-2
5-17. Calibrator Adjustment ... 5-3
VI REPLACEABLE PARTS ... 6-1
6-1. Introduction ... 6-1
6-4. Ordering I nformation ... 6-1
VII MANUAL CHANGES AND OPTIONS . . . 7-1/7-2
7-1. Manual Changes ... 7-1/7-2
7-3. Older Instruments ... 7-1/7-2
7-5. Newer Instruments ... 7-1/7-2
7-8. Options ... 7-1/7-2
7-10. Special Instruments ... 7-1/7-2
VIII SCHEMATICS AND TROUBLESHOOTING ..8-1
8-1. General ... 8-1
8-4. Troubleshooting ... 8-1
8-5. Low-Voltage Supplies ... 8-1
8-12. High-Voltage Supply ... 8-1
8-17. Periodic Maintenance ... 8-2
8-18. Electrical Maintenance ... 8-2
8-20. Mechanical Maintenance ... 8-2
8-23. Instrument Repair ... 8-2
8-26. Major Component Repair ... 8-3
8-30. Servicing Circuit Boards ... 8-3
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