Eta HEWLETT PACKARD

SERVICE MANUAL

HP 54120B

Digitizing Oscilloscope Mainframe

SERIAL NUMBERS

This manual applies directly to instruments prefIxed with serial number:

Wiih changes described within. this manual also applies to Instruments with serial prefixes:

For Additional Information about serial numbers see INSTRUMENTS COVERED BY THIS MANUAL

In Section 1.

@ COPYRIGHT HEWEll-PACKARD COMPANY/COLORADO DIVISION 1989 1900 GARDEN OF THE GODS ROAD, COLORAOO SPRINGS, COLORADO USA

ALL RIGHTS RESERVED

Manual Part No. 54120-90908 Microfiche Part No. 54120-90808 Printed in USA: July 1989

COPYRIGHT AND DISCLAIMER NOTICE

Copyright - Agilent Technologies, Inc. Reproduced with the permission of Agilent Technologies Inc. Agilent Technologies, Inc. makes no warranty of any kind with regard to this material including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Agilent Technologies, Inc. is not liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material or data.

lntroductlon A service manual is supplied with the four Emanuel test set iou ordered along with the HP 54120~ To complete the se&e documentation for your system, unpadc the four channel test set sexvie mauual and place it in the three ring binder supplied with the HP 54l2OB service mawaL

This service mauwal eantaks information necessary to test, adjust and service the Hewlett-Packard 5412oB Digi&@ OseiUoscope Mainframe. This manual is divided into 9 sections as follow

l 1 - General Information . 2-hsdlatioa . 3 - Performance Tests l 4 - Adjustments a 5 - Replaceable Parts . 6A - Disassembly . 6B-Tbeoiy . 6C Service Menu Keys . 6D -Troubleshooting

Information on opera- programming and interfacing the HP 5412OB is contained in the front panel operation refer- supplied with each instrumenr.

The “General Information” sedion includes a description of the. HP 54l2OB Digitizing Osduoscope Mainframe, general cbaracteristi~ safety considerations, instruments covered by this mauual, options, accessories supplied, recommended test equipment, and X-ray license forms. Specikations and operating characteristic are listed with the service manual for the four channel test set.

Also listed on the title page of this manual is a microfiche part number. This number can be used to order 4 x 6 inch microfilm trauspaxewks of this manual. Each mkofiche contains up to 96 photo-duplicates of manual pages. The microEche padrage also ineludcs the latest Manual Changes supplement as well as pertinent Service Notes.

HP 541208 General lnformatlon Service Manual l-l

Description The HP W2OB is a fully programmable digitizing oscilloscope mainframe tith a nine itch color display. The mainframe ia capable of automated measurements and di&I storage.

The color display provides several colors which are mapped to provide specitic colors for specitic display limctiona. For example, charmel 1 is displayed in yellow, chauncl2 in grees and error nuxagcs are displayed in red.

The HP 54l2OB comains tier&e self+tests to ensure prop-x fuactiortiag of the oscillosmpe. These self-tests are in addition to internal diagaostia that help locate faults efficiently and id&@ repairs, if a failure does oceor.

Specifications & AU spechicatioos and instrument operating characteristics are fisted with the Operating service manual for the four chaw.t.al teat set.

Characteristics

General Characteristics

e Environmental Conditions

Power Requirements

Weight HP 54120B Net: Approhately205 kg (45 lb).

General Information HP 541208 1-2 Service Manual

The following general characteristics are not spechicarious, but typical characteristics iacluded as additional information oaly.

TeqeratureOp +WCto +35”C(+59”Fto +9Fl?). Temperaht~Non-operatIeg~Cto +mC(-KPPto +l5g’F). Bumidily OpenGag Up to 90% relative humidity at + 35’ C (95” P). Humidity Nm-opemting: Up to 95% refative hwnidity at +6Y C ( + 149 F). Altihtde Operating: Up to 4602 me&s (U,OCO ft). .4ltitude Non-operating: Up to l5,3QO me&s (50,0@3 ft). Kbmtion Operating Random vibrations 5-500 Hz, 10 minutes per axis, -0.3 g Gw. Vibration Non-opera~: Random v&ration 5-500 Hr, 10 minutes per axis, =2.41 g (rms); and swept sine re.s(mast search, 5-500 Hz, 0.75 g (O-peak), 5 minute resonant dwell at 4 resonances per axis.

Power requirements listed are for the HP 5412OB combined with a four chatmel test set. The four channel test set obtains its power over the prtided interface cable from the HP 54l2OB. Voltage: ll5/230 Vat, -25% to f E%, 48-66 Hz Power: 2tM watts, 4M) VA lrlaximum.