Tektronix TM 501 User manual

Tektronix, Inc.
P-.O. Box 500
Beaverton, Oregon
070-1304-01
Product Group 75
Tektronix-
COMMTTTHITO EXCCULENCE
TM 501
POWER MODULE
INSTRUCTION MANUAL
97077 Serial Number
First Printing MAY 1972
Revised JUN 1985

Copyright *1972, 1980 Tektronix, Inc. All rights reserved.
Contents o< this publication may not be reproduced in any
form without the written permission of Tektronix. Inc.
Products Of Tektromx. Inc and itssubsidiariesare covered
by U.S and foreign patents and/or pending patents.
TEKTRONIX. TEK. SCOPE-MOBILE, and
istered trademarks of Tektronix. Inc.
are reg-
Printed mUSA. Specification and price change privileges
are reserved.
INSTRUMENT SERIAL NUMBERS
Each instrument has aserial number on apanel insert, tag.
or stamped on the chassis. The first number or letter
designates the country of manufacture. The last five digits
of the serial number are assigned sequentially and are
unique to each instrument. Those manufactured in the
United States have six unique digits. The country of
manufacture is identified as follows;
BOOOOOO Tektronix. Inc., Beaverton. Oregon, USA
100000 Tektronix Guernsey, Ltd., Channel Islands
200000 Tektronix United Kingdom, Ltd., London
300000 Sony/Tektronix. Japan
700000 Tektronix Holland, NV, Heerenveen.
The Netherlands

TABLE OF CONTENTS TM 501
Page
OPERATORS SAFETY SUMMARY li
SERVICING SAFETY SUMMARY ill
Section 1SPECIFICATION
Introduction 1-1
Electrical Characteristics 1-1
Physical Characteristics 1-3
OPERATORS PART -ENGLISH
Section 2OPERATING INSTRUCTIONS
General 2-1
Building aSystem 2-1
Installation and Pre-Turn On
Procedure 2-3
Section 3MAINTENANCE
General 3-1
Troubleshooting Aids 3-1
Troubleshooting Techniques 3-2
Parts Ordering and Replacing .... 3-3
installation Procedure 3-8
Section 4OPTIONS
Option 24-1
Option 74-1
Section 5REPLACEABLE ELECTRICAL PARTS
Sections DIAGRAMS AND CIRCUIT BOARD
ILLUSTRATION
Section 7REPLACEABLE MECHANICAL PARTS
CHANGE INFORMATION
REVCJUL 1980 I

TM 501
OPERATORS SAFETY SUMMARY
Terms In This Manuel
CAUTION statements identify conditions or practicesthat
could result in damageto the equipment or other property.
WARNING statements identify conditions or practices
that could result in personal injury or loss of life.
Terms As Marked on Equipment
CAUTION indicates apersonal injury hazard not im-
mediately accessible as one reads the marking, or a
hazard to property including the equipment itself.
DANGER indicates apersonal injury hazard immediately
accessible as one reads the marking.
Symbols In This Manual
AThis symbol indicates where applicable
cautionary or other information is to be
found.
Symbols As Marked on Equipment
DANGER ~High voltage.
Protective ground (earth) terminal.
ATTENTION —refer to manual.
Power Source
This product Is intended to operate from apower source
that will not apply more than 250 volts rms between the
supply conductors or between either supply conductor
and ground. Aprotective ground connection by way of the
grounding conductor in the power cord Is essential for
safe operation.
Grounding the Product
This product is grounded through the grounding conduc-
tor of the power cord. To avoid electrical shock, plug the
power cord into aproperly wired receptacle b^ore
connecting to the product input or output terminals. A
protective ground connection by way of the grounding
conductor in the power cord is essential for safe opera-
tion.
Danger Arising From Loss of Ground
Upon loss of the protective-ground connection, all
accessible conductive parts (including knobs and con-
trols that may appear to be insulating) can render an
electric shock.
Use the Proper Power Cord
Use only the power cord and connector specified for your
product.
Use only apower cord that is in good condition.
For detailed information on power cords and connectors,
see maintenance section.
Refer cord and connector changes to qualified service
personnel.
Use the Proper Fuse
To avoid fire hazard, use only the fuse of correct type,
voltage rating and current rating as specified in the parts
list for your product.
Refer fuse replacement to qualified service personnel.
Do Not Operate in Explosive Atmospheres
To avoid explosion, do not operate this product in an
explosive atmosphere unless it has been specifically
certified for such operation.
Do Not Remove Covers or Panels
To avoid personal injury, do not remove the product
covers or panels. Do not operate the product without the
covers and panels proprerly installed.
Do Not Operate Without Covers (for TM 500 plug-
ins only)
To avoid personal injury, do not operate this product
without cov^s or panels installed. Do not apply power to
the plug-in via aplug-in extender.
ii @JUL 1980

SERVICE SAFETY SUMMARY
FOR QUALIFIED SERVICE PERSONNEL ONLY
Refer also lo the preceding Operators Safely Summary.
TM 501
Do Not Service Alone
Do not perform internal service or adjustment of this
product unless another person capable of rendering first
aid and resuscitation is present.
Use Care Whert Servicing With Power On
Dangerous voltages exist at several points in this product.
To avoid personal injury, do not touch exposed connec-
tions and components white power is on.
Disconnect power before removing protective panels,
soldering, or replacing components.
Power Source
This product is intended to operate from apower source
that will not apply more than 250 volts rms between the
supply conductors or between either supply conductor
and ground. Aprotective ground connection by way of the
grounding conductor in the power cord is essential for
safe operation.
@JUL 1960 iii

.ignitf

Section 1<TM SOI
SPECIFICATION
INTRODUCTION
Description
The TM sot is asingle compartment module compati-
ble with all TM 500 plug-ins. It provides unregulated dc
and ac supplies and non-dedicated power transistors for
plug-ln usage. Option 2 rear interface allows Interconnec-
tion of special features with external devices through the
back panel.
Perfonnance Conditions
The values listed below are valid only when the instru-
ment is operated at an ambient temperature between O’C
and 50*C.
Table 1-1
ELECTRICAL CHARACTERISTICS
1
Characteristics Performance Requirements Supplemental Information
SUPPLIES
+33.5 Vdc '
Tolerance* +23.7 Vto +40.0 V
PARD (Periodic and Random
Deviation) <2.5 Vpp
Maximum load 350 mA
Maximum load di/dt 10 mA/ps
-33.5 Vdc
Tolerance* -23.7 Vto -40.0 V
PARD <2.5 Vpp
Maximum load 350 mA
Maximum load di/dt 10 mA/fJs
+11.5 Vdc
Tolerance* +7.6 Vto +16.0 V
PARD <2.5 Vpp
Maximum load 1.3 A
Maximum load di/dt 20 mA/ps
25 Vac (2 each)
Range 25.0 Vrms +10%. -15% floating
Maximum load 25 VAC
Maximum floating voltage 350 Vpeak
@JUL 1980 1-1

Spedfic«tion—TM 501
Table 1-1 (cont)
Characterlallcs Performance Requirements Supplemental Information
17.5 Vac‘
Range With agrounded center tap 20.5 Vrms
+10%. -20%
Maximum load 30 VA
Maximum plug-ln power drawn from
mainframe*
35 Wdc or 75 VAac
Combined power drawn sharing
limitation'
VAac +2.1 (Wdc) <VAac
Fuse data
+33.5 Vdc 2.5 A. 3AG, fast blow
-33.5 Vdc 2.5 A. 3AG. fast blow
+11.5 Vdc 7.5 A. 3AG, fast blow
SERIES PASS TRANSISTORS
Type One each NPN or PNP
Maximum dissipation 7.5 Weach. 15 Wtotal
SOURCE POWER REQUIREMENTS
Voltage ranges Selectable 100 V, 110 V. 120 V, 200 V.
220 V. and 240 Vnominal line ±10%
Line frequency 48 Hz to 440 Hz
Max power consumption 'Approximately 120 W
Fuse data
100 V. 110 V, 120 Vranges
^
0.6A slow blow
200 V. 220 V, 240 Vranges
I
0.3A med blow
MISCELLANEOUS
Maximum recommended plug-in power 10 to 15 W
dissipation
'Worst case; low line-full load and Mgh llne-no load values Irtdudlng PARD.
‘At nominal line voltage.
1-2 REV JAN 1983

specification—TM SOI
Table 1-2
PHYSICAL CHARACTERISTICS
Cfiaracteristics Supplemental Information
ENVIRONMENTAL'
Overall Meets or exceeds MIL-T-28800B. class 5requirements with exception for
vibration, shock, and EMC.
Temperature
Operati r>g 0*Cto -f-SO'C
Non-operating -40“Cto +7S*C
Humidity 90-95% RH for 5days cycled to -l-50*C.
Altitude
Operating 4.6 km (15.000 H)
Non-operating 15 km (50.000 ft)
Vibration 0.26 mm (0.010"), 10 Hz to 55 Hz. 75 minutes.
Shock 20 g's (1/2 sine). 11 ms, 18 shocks
Bench handling 45°. 4". or equilibrium whichever occurs first
Transportation Qualified under National Safe Transit Association Preshipment Test
Procedures 1A-B-1 and 1A-B-2.
MECHANICAL
Net weight 6.0 lbs (4.3 kg)
Overall dimensions 6.0 in (15.2 cm)H.3.9 in (9.9 cm)W, 15.3 in (38.9 cm)L
‘With plug-lns. Some plus-li^ require addlllonal limitations.
MtTtttC £OUIV*LtHCt
OCC'MU iM tfoc at* *io 450
A4f TRIC ijim) M/ C5 UA
REV AU0 1981 1-3

Section 2—TM 501
OPERATING INSTRUCTIONS
GENERAL
liMtallation
For full installation instructions refer to the procedure
at the end of this section.
Power Source
The TM S01 is designed to operate from apower source
with its neutral at or near earth (ground) potential with a
separate safety-earth conductor. It is not Intended for
operation from two phases of amulti-phase system.
Power Usage
The TM 501 may require up to 30 watts at the upper
limits of high line voltage ranges. Actual power consump-
tion depends on the particular plug-in and operating mode
selected.
Loading Considerations. The power capability of the
TM 501 can best be used by carefully planningthe plug-in
configuration, the external loads, and the resulting power
distributions. Optimum conditions may be obtained by:
1. Dissipating as much power as possible In the
external loads.
2. Operating the system in an ambient temperature
near 25® C.
The plug-in is provided access to apair of heat-sinked,
series-pass transistors, one NPN and the other PNP.
These transistors enable the plug-in to operate in power
ranges not possible If the power were to be dissipated in
the plug-in.
Operating Temperatures
The TM 501 can be operated in an ambient air
temperature of 0®C to 50“C.
Since the TM SOJ can be stored in temperatures
between -40®C and +75®C, allow the instrument's
chassis to return to within the operating limits before
applying power.
Module Installation
Turn fhe PowerModule off before inserting the plug-
in; otherwise damage may occur to the plug-in
circuitry.
1. Check the location of the white plastic barrier keys
on the TM 501 interconnecting jack to ensure that their
locations match the slots in the edge of the plug-in
module's circuit board.
2. Align the plug-in module chassis with the upper and
lower guides of the selected compartment. Push the
module in and press firmly to seat the circuit board in the
interconnecting jack. (Remove the plug-in module by
pulling on the white release latch in the lower left corner of
each module.)
Turn-on Procedure
After completing the Installation procedure, found at
the end of this section, and installing the plug-in, pull the
POWER switch on the right side of the TM 501. Some
plug-ins have Independent power switches, usually
labeled OUTPUT, controlling application of mainframe
power to the plug-in. Press this button to activate the plug-
in.
BUILDING ASYSTEM
Family Compatibility
Mechanically, the plug-in modules are very similar to
other Tektronix product families. However, they are not
electrically compatible. Therefore, the TM 501 interface
has barriers on the mating connectors between pins 6and
7to ensure that incompatible modules cannot be inserted.
See Fig. 2-1. Acompatible module will have amatching
slot between pins 6and 7of its main circuit board edge
connector. This slot and barrier combination is the
primary keying assignment.
TM 500-compatibie plug-in modules are also Identified
by the white color of the release latch.
@JUL 1980 2-1