BRUEL & KJAER 5955 User manual

Brüel&Kjær
BI5025–11e
Technical
Documentation
WORLD HEADQUARTERS: DK-2850 Nærum • Denmark •
Telephone: [phone] •Telex: 37316 bruka dk • Fax: [phone] •
e-mail: [e-mail]
Signal Output Module Type 5955
Service Manual

0−2Brüel & KjærSignal Ouput Module Type 5955
Service Manual
Proprietary: Authorized Brüel & Kjær Personnel Only

April 1997
BI5025–11e
Brüel & Kjær Signal Ouput Module Type 5955
Service Manual
Signal Ouput Module
Type 5955
Service Manual
Valid from serial number 1 111 111

0−2Brüel & KjærSignal Ouput Module Type 5955
Service Manual
Safety Considerations
This apparatus has been designed and tested in accordance with IEC Publication
348, Safety Requirements for Electronic Measuring Apparatus, and has been supplied
in safe condition. This Guide contains information and warnings which must be fol-
lowed by the user to ensure safe operation and to retain the apparatus in safe
condition. Special note should be made of the following:
Safety Symbols
See the associated warning statements given in the User Guide.
Chassis Terminal
Safety Earth Terminal
Hazardous Voltage
Warnings
This is a CISPR II, Class A product. In a domestic environment this product may
cause radio interference in which case the user may be required to take adequate
measures
Switch off all power to equipment before connecting or disconnecting their digital
interface. Failure to do so could damage the equipment.
Whenever it is likely that the correct function or operating safety of the apparatus
has been impaired, it must be made inoperative and be secured against unintended
operation.
Any adjustment maintenance and repair of the open apparatus under voltage must
be avoided as far as possible and, if unavoidable, must be carried out only by trained
service personnel.
Copyright © 1997, Brüel&Kjær Sound and Vibration Measurement A/S
All rights reserved. No part of this publication may be reproduced or distributed in
any form or by any means without prior consent in writing from Brüel & Kjær Sound
and Vibration Measurement A/S, Nærum, Denmark.

Signal Ouput Module Type 5955
Service Manual
BI5025–11e 0−3
Contents
1. General Information.................................................................................................. 1–1
1.1 Introduction................................................................................................................. 1–2
1.2 Edition Number........................................................................................................... 1–2
1.3 Safety ........................................................................................................................... 1–3
1.4 Service Policy............................................................................................................... 1–3
1.5 Special Tools and Equipment..................................................................................... 1–3
2. Service Note...................................................................................................................... 2–1
2.1 On-line Editions of the Service Manual..................................................................... 2–2
2.2 Printed Editions of the Service Manual..................................................................... 2–2
3. Checking Procedure................................................................................................... 3–1
3.1 Introduction................................................................................................................. 3–2
3.2 Checking Procedure .................................................................................................... 3–2

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Service Manual Brüel & Kjær
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Signal Ouput Module Type 5955
Service Manual
BI5025–11e 1−1
Chapter 1
General Information

Chapter 1 — General Information
Introduction
Signal Ouput Module Type 5955
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1.1 Introduction
Type 5955 is a signal output module for use in Type 3550, Type 3551 or Type 3560
(PULSE) Systems. It provides a means of accessing the analogue signals that are
sent into an acquisition frame (Type 2816 or Type 2825) via Type 3015 and Type
3016 input modules.
Note: Type 3015 and Type 3016 input modules need to be modified to ensure their
analogue signals are correctly routed to the acquisition unit’s backplane. See the
Checking Procedure in the System Service Manual for more details..
1.2 Edition Number
If any major changes are made to the instrument and/or Service Manual, a new
edition of the Service Manual will be released. Any new edition can be recognised
by the Literature Number (BI5033-xx) given at the bottom of odd numbered pages.
The serial number from which each edition is valid is printed in the Frontispiece of
this Service Manual.
Fig.1.1 Type 3015

Chapter 1 — General Information
Safety
Signal Ouput Module Type 5955
Service Manual
BI5025–11e 1−3
Information concerning minor changes will be released in the form of a Service
Note which is dealt with in section 2.1.
1.3 Safety
Type 5955 has been designed and tested in accordance with IEC Publication 348,
Safety Requirements for Electronic Measuring Apparatus, and has been supplied in
safe condition.
Any work done on the instrument when open must be done by a qualified person
who is aware of the hazards involved.
Note: The word WARNING denotes a hazard. It calls attention to a procedure,
practice, or like, which, if not correctly performed or adhered to, could result in
personal injury.
1.4 Service Policy
Type 5955 is a not a Field Replaceable Part (FRP). However, because the module
has limited application and is deemed a “customised” part, repair to the module is
only offered at Brüel & Kjær, Nærum.
Therefore, DO NOT ATTEMPT ANY LOCAL REPAIR to Type 5955. Send a
faulty module back to Brüel & Kjær, Nærum, for repair or replacement.
1.5 Special Tools and Equipment
Type 5955 must always be checked as part of a multichannel system incorporating
Acquisition Front-end Type 2825 or Multichannel Data Acquisition Unit Type 2816.
No other special conditions exist.

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Signal Ouput Module Type 5955
Service Manual
BI5025–11e 2−1
Chapter 2
Service Note

Chapter 2 — Service Note
On-line Editions of the Service Manual
Signal Ouput Module Type 5955
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2.1 On-line Editions of the Service Manual
Note: An on-line edition of a service manual is one that has not been published in printed
form. On-line manuals have the letter “e” appended to the literature number (“e”
denotes “electronic”).
From time to time some minor changes may be made to improve the performance
and serviceability of Type 5955. All information concerning these changes, or any
other changes to the service manual, are included in the latest version of the on-
line source document.
This Service Note section contains a history of the changes when any are made.
2.2 Printed Editions of the Service Manual
From time to time some minor changes may be made to improve the performance
and serviceability of Type 5955. All information concerning these changes, or any
other changes to the Service manual, will be released in the form of a Service Note.
Note: Printed Service Notes are renewed as a whole, meaning:
Discard the previous Service Note every time you receive a new one
The new edition of the Service Note must be placed in the binder in this section.
The organisation of the Service Note is as in the Service Manual, i.e. the Service
Note is divided into sections with names corresponding to the section name in the
Service Manual.

Signal Ouput Module Type 5955
Service Manual
BI5025–11e 3−1
Chapter 3
Checking Procedure

Chapter 3 — Checking Procedure
Introduction
Signal Ouput Module Type 5955
Service Manual Brüel & Kjær
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3.1 Introduction
The checking procedure is performed on a fully assembled multichannel system
incorporating the Type 5955 module. The procedure enables you to verify that Type
5955 meets specifications. In the case of a fault appearing, return the module to
Brüel & Kjær, Nærum for repair or replacement.
Refer to Chapter 4 if there is mechanical damage to the module.
3.2 Checking Procedure
The most common problem that occurs when using Type 5955 modules is incorrect
re-wiring of Type 3015 and Type 3016 input modules. See the Chapter 2 of the
Hardware Manual for more details.
Type 5955 can also be tested as part of the PULSE system. Refer to Chapter 5 of
the Installation Manual for more details.