Tektronix 7B90P Générateur
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Modèle:
7B90P
Date:
1978
Catégorie:
Groupe:
Description:
Programmable Time Base
Information
The Tektronix 7B90P Programmable Time Base provides
calibrated sweep rates for Tektronix 7000-Series
programmable mainframes. The 7B90P may be inserted in any
7000-Series mainframe without damage, but is recommended for
use only in a programmable mainframe.
The 7B90P has calibrated sweep rates ranging from 500
picoseconds/ division to 500 milliseconds/division. Other
operating features that can be selected are: normal or
automatic triggering, high or low frequency roll-off
(attenuation) of the triggering signal, variable trigger
hold-off, internal or external triggering, 1X or 10X sweep
magnification, and repetitive or single-sweep mode.
The 7B90P has readout encoding capability. Thus, horizontal
scale factors can be displayed on a programmable mainframe
having readout display capability.
All functions of the 7B90P can be remotely programmed except
for the Sweep Calibration (SWP CAL) adjustment and the
External Trigger Input Termination (TERM) switch. The status
of each programmable function can be set or read by commands
sent over the IEEE 488 bus. These commands can be sent in
either a high-level or low-level language, Doth of which are
decoded by a microprocessor in the 7B90P,
Type manuel:
Service et Manuel de l'utilisateur
Pages:
230
Taille:
56.78 Mbytes (59538827 Bytes)
Langue:
english
Révision:
revised
Manuel-ID:
070-2309-00
Date:
1984 09 01
Qualité:
Document scanné, tous les lisible.
Date de transfert:
2017 04 23
MD5:
0b8c30d2b76a224fe9bcb153b4b835d6
Téléchargements:
836
Information
PREFACE
This manual contains two main divisions: operation and service.
These divisions are separated by a heavy divider page.
Information following this divider sheet is intended for
qualified service personnel only.
The first division (operator's portion) begins with an
introductory section that briefly describes the 7B90P
Programmable Time Base. Specifications and programmable
features of the Plug-In are also listed. Section 2 describes
each of the front-panel controls and connectors, and gives
complete instructions for manual operation of the Plug-In.
Measuring techniques and applications are also discussed in
Section 2.
The last section of the operator's portion describes
programmable operation of the 7B90P via the IEEE 488
Interface Bus, also known as the General Purpose Interface
Bus (GPIB).* A complete list of device mnemonics is provided
in this section.
The second division of the manual (service portion) begins
with a section on preventive and corrective maintenance.
Included in this section are some general troubleshooting
procedures. Section 5 then provides a detailed circuit
description of both the analog and digital portions of the
7B90P. Section 6 is a calibration procedure; it lists the
equipment needed, and the steps required, for calibrating
the instrument within specified limits. The remaining three
sections provide electrical parts lists, schematic diagrams,
and mechanical parts lists.
At the back of the manual is a removable sheet which serves
as a pocket programming aid. It lists all of the high-level
mnemonic codes and low-level hexadecimal codes for
exercising programmable control of the 7B90P Programmable
Time Base.