Tektronix TM 515 User manual

"tektronix
COMMITTED TO EXCELLENCE
TM515
FIVE COMPARTMENT
PORTABLE
POWER MODULE
INSTRUCTION MANUAL
Tektronix, Inc
P O Box 500
Beaverton, Oregon
070-2020-02
Product Group 75
97077
Serial Number -----------------------------------
First Printing SEP 1975
Revised JUL 1988

Copyright ®1975 1980 Tektronix Inc All rights reserved
Contents ol this publication may not be reproduced in any
form without the written permission of Tektronix, Inc
Products of Tektronix, Inc and its subsidiaries are covered
by U S and foreign patents and/or pending patents
TEKTRONIX TEK, SCOPE-MOBILE, and (logo) are reg 
istered trademarks of Tektronix Inc
Printed in U S A Specification and price change privileges
are reserved
INSTRUMENT SERIAL NUMBERS
Each instrument has a serial number on a panel 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

TM 51
TABLE OF CONTENTS
Page
UST OF ILLUSTRATIONS ii
LIST OF TABLES ii
OPERATORS SAFETY SUMMARY iii
SERVICE SAFETY SUMMARY v
OPERATORS PART
Section 1 SPECIFICATION 1-1
Introduction 1-1
Instrument Description 1-1
Performance Conditions 1-1
Electrical Characteristics 1-1
Physical Characteristics 1-3
OPERATORS PART — ENGLISH
Section 2 OPERATING INSTRUCTIONS 2-1
General 2-1
Installation 2-1
Power Source 2-1
Power Usage ’ 2-1
Operating Temperatures 2-1
Plug-in Modules 2-1
Module Installation 2-1
Turn-on Procedure 2-2
Building a System 2-2
Family Compatibility 2-2
Customizing the Interface 2-2
Installation and Pre-Turn On Procedure 2-3
Front and Rear Cover Removal 2-3
Use of Bail 2-3
Line Voltage Selector and Fuse 2-5
REV B JUN 1980

TM 515
TABLE OF CONTENTS (cont)
SERVICE PART
Page
Section 3 MAINTENANCE 3-1
General 3-1
Introduction 3-1
Cabinet Removal 3-1
Cleaning 3-1
Preventive Maintenance 3-1
Calibration 3-2
Troubleshooting Aids 3-2
Troubleshooting Techniques 3-2
Parts Ordering and Replacing 3-4
Packaging Information 3-8
Section 4 OPTIONS 4-1
Option 5 4-1
Option 6 4-1
Option 7 4-1
Section 5 REPLACEABLE ELECTRICAL PARTS 5-1
Section 6 DIAGRAMS AND CIRCUIT BOARD
ILLUSTRATIONS
Power Module Interface Pin
Assignments
Detailed Block Diagram
Schematic Diagram
Parts Location Grid and Reference
Tables
Option 6 Parts Location
Section 7 REPLACEABLE MECHANICAL PARTS 7-1
Exploded View
Accessories
CHANGE INFORMATION
li
REV A JUN 1980

TM 515
LIST OF ILLUSTRATIONS
Figure Page
TM 515 Five Compartment Power Module vi
1- 1 Dimensional Diagram 1-4
2- 1 Interface Board 2-2
2-2 End Clamp Detail 2-3
2-3 Bail Usage and Storage 2-4
2-4A Rear View 2-5
2-4B Front View 2-6
2- 5 Line Voltage Selector and Fuse 2-7
3- 1 Reassembly Guide-Pin Alignment 3-1
3-2 Semiconductor device lead configurations
found in the TM 500 family 3-5
3-3 Light-emitting diode (LED) lead orientation 3-7
LIST OF TABLES
Table Page
1-1 SUPPLIES 1-1
1-2 SERIES PASS TRANSISTORS 1-2
1-3 SOURCE POWER REQUIREMENTS 1-2
1-4 MISCELLANEOUS 1-3
1-5 ENVIRONMENTAL 1-3
1-6 MECHANICAL 1-3
REV AUG 1981
III

TM 515
OPERATORS SAFETY SUMMARY
The general safety information in this part of thesummary
is for both operating and servicing personnel Specific
warnings and cautions will be found throughout the
manual where they apply, but may not appear in this
summary
TERMS
In This Manual
CAUTION statements identify conditions or practices that
could result in damage to the equipment or other property
WARNING statements identify conditions or practices
that could result in personal injury or loss of life
As Marked on Equipment
CAUTION indicates a personal injury hazard not im 
mediately accessible as one reads the marking, or a
hazard to property including the equipment itself
DANGER indicates a personal injury hazard immediately
accessible as one reads the marking
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 a properly wired receptacle before
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 a power cord that is in good condition
Refer cord and connector changes to qualified service
personnel
SYMBOLS
In This Manual
This symbol indicates where applicable
cautionary or other information is to be
found
As Marked on Equipment
DANGER — High voltage
Protective ground (earth) terminal
ATTENTION — refer to manual
Power Source
This product is intended to operate from a power source
that will not apply more than 250 volts rms between the
supply conductors or between either supply conductor
and ground A protective ground connection by way of the
grounding conductor in the power cord is essential for
safe operation
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 properly installed
Do Not Operate Without Covers (for TM 500 plug 
ins only)
To avoid personal injury, do not operate this product
without covers or panels installed Do not apply power to
the plug-in via a plug-in extender
V
REV A JUN 1980

TM 515
SERVICE SAFETY SUMMARY
FOR QUALIFIED SERVICE PERSONNEL ONLY
Refer also to the preceding Operators Safet Summar .
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 When 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 while power is on
Disconnect power before removing protective panels,
soldering, or replacing components
Power Source
This product is intended to operate from a power source
that will not apply more than 250 volts rms between the
supply conductors or between either supply conductor
and ground A protective ground connection by way of the
grounding conductor in the power cord is essential for
safe operation
vi
REV A JUN 1980

TM 515
2020-1
TM 515 Five Compartment Portable Power Module
Xli
REV A JUN 1980

Section 1 — TM 515
SPECIFICATION
INTRODUCTION
Instrument Description
The TM 515 is a five-wide power module compatible
with most TM 500 plug-ins It provides unregulated ac and
de supplies and nondedicated power transistors for use by
the plug-ins This mainframe does not have a high-power
compartment but does feature forced-air cooling
Available options allow the rear i nterface to be customized
(Option 5), operation from power sources with a line
frequency of up to 400 Hz (Option 6), and specific
interconnections for specialized plug-ins (Option 7)
Performance Conditions
The values listed below are valid only when the
instrument is operated at an ambient temperature
between 0°C and +50° C
ELECTRICAL CHARACTERISTICS
Table 1-1
SUPPLIES
Characteristics
Performance Requirements Supplemental Information
+33 5 Vdc
Tolerance*
+23 7 V to +40 0 V
PARD (Periodic and Random
Deviation)
<2 5 VPP
Maximum load
350 mA
Maximum load di/dt 10 mA/  s
-33 5 Vdc
Tolerance*
-23 7 V to -40 0 V
PARD
<2 5 VPP
Maximum load
350 mA
Maximum load di/dt
10 mA/ps
+11 5 Vdc
Tolerance*
+7 6 V to +16 0 V
PARD
<2 5 VPP
Maximum load
1 3 A
Maximum load di/dt 20 mA/  s
25 Vac (2 each)
Range
25 0 Vrms +10%; -15%
Maximum load
25 VA
Maximum floating V
350 Vpeak
REV A JAN 1980 1-1

Specification — TM 515
Table 1-1 (cont)
Characteristics Performance Requirements Supplemental Information
17 5 Vac
Range
20 5 Vrms +10%; -20% grounded center tap
Maximum load
30 VA
Maximum Plug-in Power draw
from mainframe 1 ’
35 Wdc or 75 VAac
Combined Power Draw sharing
limitation 1 ’
VAac + 2 1 Wdc <75
Fuse Data
+33 5 Vdc
2 5 A, 3 AG, fast blow
-33 5 Vdc
2 5 A, 3 AG fast blow
+11 5 Vdc
7 5 A, 3 AG, fast blow
* Worst case; low line-full load and high llne-no load values including PARD
b At nominal line voltage
Table 1-2
SERIES PASS TRANSISTORS
Characteristics
Performance Requirements
Supplemental Information
Type
One each NPN and PNP per compartment
Maximum dissipation
7 5 W each 15 W total
Table 1-3
SOURCE POWER REQUIREMENTS
Characteristics
Performance Requirements Supplemental Information
Voltage ranges
Selectable 100 V 110 V 120 V, 200 V 220 V
and 240 V nominal line ±10%
Line frequency
48 Hz to 60 Hz
Option 6 48 Hz to 400 Hz
Maximum power consumption 240 W
Fuse data
100 V, 110 V 120 V ranges
3A, 3 AG, slow blow
200 V 220 V 240 V ranges
3A 3 AG slow blow
1-2
REV A JAN 1980

Specification — TM 515
Table 1-4
MISCELLANEOUS
Characteristics Performance Requirements Supplemental Information
Maximum recommended plug-in
power dissipation
One-wide 10 to 15 W
Two-wide
25 to 35 W
PHYSICAL CHARACTERISTICS
Table 1-5
ENVIRONMENTAL*
* With plug-ins; some plug-ins require additional limitations
Characteristics
Information
Overall
Meets or exceeds MIL-T-28800B, class 5 requirements with exception for EMC
Temperature
Operating
0 ° C to 50° C
Non-operating — 55°C to +75° C
Humidity
90 to 95% R H for five days cycled to +50 °C
Altitude
Operating
4 6 km (15,000 ft )
Non-operating
15 km (50,000 ft )
Vibration 0 38 mm (0 015 in ) 10 Hz to 55 Hz 75 minutes
Shock 30 g (1/2 sine), 11 ms, 18 shocks
Bench handling 45°, 4 in , or equilibrium, whichever occurs first
Transportation
Qualified under National Safe Transit Association Preshipment
Test Procedures 1A-B-1 and 1A-B-2
Table 1-6
MECHANICAL
Characteristics Information
Net weight
10 2 kg (22 5 lbs)
Overall dimensions Height — 17 3 cm (6 8 in )
Width — 38 1 cm (15 0 in )
Length — 50 8 cm (20 0 in )
@ JAN 1980
1-3

Specification — TM 515
1-4
@ AUG 1981

Section 2 — TM 515
OPERATING INSTRUCTIONS
GENERAL
Installation
For full installation instructions refer to the procedure
at the end of this section
Each plug-in is provided access to a pair of heat-sinked,
series-pass transistors, one NPN and the other PNP
These transistors enable the plug-ins to operate in power
ranges not possible if the power were to be dissipated in
the plug-ins themselves
Power Source
TheTM 515 is designed to operate from a power 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 a multi-phase system The
standard instrument has a 46 Hz to 60 Hz line frequency
range for fan operation Option 6 extends the upper limit
of this range to 400 Hz
Power Usage
With five plug-ins installed, the TM 515 may require up
to 240 watts at the upper limits of the high line voltage
ranges Actual power consumption depends on the par 
ticular plug-in configuration and operating modes
selected
Loading Considerations The power capability of the
TM 515 can best be used by carefully planning the plug-in
configuration, the external loads, and the resulting power
distributions Optimum conditions may be obtained by:
1 Having equal loads in all compartments
2 Dissipating as much power as possible in the
external loads
3 Operating the system in an ambient temperature
near 25° C
Operating Temperatures
The TM 515 can be operated in an ambient air
temperature of 0°C to 50°C Thermal cutout devices
protect the system by disconnecting the power to the
TM 515 Power Module when internal temperatures rise
above a safe operating level These devices automatically
return power to the unit when the internal temperatures
return to a safe level
Since the TM 515 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
Plug-in Modules
It is not necessary that all the plug-in compartments be
filled in order to operate the Power Module The only
modules needed are those necessary to accomplish the
task
The TM 515 should be turned off before inserting or
removing an plug-ins as arcing ma occur and
result in circuit damage.
The TM 515 has no high-power compartment, so care
should be taken In selecting plug-ins, since some units
may not operate at full capability in this module For
instance, some TM 500 power supply type plug-ins will
not produce maximum rated current when powered from
this module Combinations of other plug-ins also may not
operate at full capability An example here might be three
units rated at 75 watts maximum power dissipation each
All plug-ins working at their maximum rating would
probably blow the line fuse, if the thermal cut-out didn't
operate first
Module Installation
1 Check the location of the plastic barriers on the
TM 515 interconnecting jack toensurethattheir locations
match the slots in the edge of the plug-in circuit board
2 Take off the PLUG-IN RETAINER by unscrewing
the three bolts holding it in place on the lower side of the
front aperture
REV B JAN 1980
2-1

Operating Instructions — TM 515
3 Align the plug-in chassis with the upper and lower
guides of the selected compartment Insert the plug-in and
press firmly to the circuit board in the interconnecting
jack (Remove the plug-in by pulling on the white release
latch in the lower left corner of the front panel )
4 Replace the PLUG-IN RETAINER removed in step 2
Turn-on Procedure
Press the POWER switch, found on the rear panel of the
TM 515, to its ON position Some plug-ins have indepen 
dent power switches, usually labeled OUTPUT, con 
trolling application of module power to the plug-in Press
these switches to activate these plug-ins once the Modular
Power is turned on
BUILDING A SYSTEM
Family Compatibility
Mechanically, the plug-ins are very similar to other
Tektronix products However, they are not electrically
compatible Therefore, the TM 515 interface has barrier
keys on the mating connectors between pins 6 and 7 to
ensurethat incompatible plug-ins cannot beinserted See
Fig 2-1 A compatible plug-in will have a matching slot
between pins 6 and 7 of its main circuit board edge
connector This slot and barrier combination is the
primary keying assignment
TM 500-compatible plug-ins are also identified by the
white color of the release latch
Customizing the Interface
The modularity of this instrumentation system provides
for many different functions to be performed by the plug 
in modules Specific functions are grouped into families or
classes, of which there may be several plug-in module
members (e g , Power Supplies, Signal Sources, and
Measurement) Each modular member of a functional
family will have a second slot unique to its family located
in its edge connector The TM 515 user can "program"
one or more compartments to accept only members of
that family by installing a second barrier key in the
interface connector to match the module's slot location
An entire TM 515 can be modified in this manner to set
instruction systems for specific work functions To order
extra barrier keys refer to the Mechanical Parts list
Jumper wires can be used to further specialize the
interface Compartments can be made to "talk" to each
other by connecting jumpers on the front side of the
POWER SUPPLY
FAMILY KEY
SIGNAL SOURCE
MEASUREMENT
FAMILY KEY
FAMILY KEY
2020-6
Fig 2-1 Interface Board
2-2
REV B JAN 1980

Operating Instructions — TM 515
interface board, using pins 14 through 28 (both A and B
sides) of the interconnecting jacks For a further descrip 
tion of this see Option 5 in the Options Section of this
manual Also refer to each plug-in's manual for the I/O
assignments of each pin at the rear interface Once having
made interconnections of a specialized nature, it is
recommended that barrier keys be installed to ensure
module compatibility with the wiring
To release them, simply pull the leading edges (left and
right) out away from the case
Pull the rear edge of each clamp clear of its pressure
ridge and the end cover comes off (see Fig 2-2)
INSTALLATION AND PRE-TURN ON
PROCEDURE
Front & Rear Cover Removal
The white plastic pieces located left and right toward
both ends of this cabinet are the clamps that hold the
covers in place
USE OF BAIL
The Single Angle Bail Wire used to hold this cabinet of
instruments at a convenient viewing angle is stored inside
the front cover If desirable, remove it from storage mounts
and install according to the viewing angle desired for this
package (See Fig 2-3 )
PULLED
OPEN
2020-2A
Ag 2-2 End Clamp Detail
REV A JAN 1980
2-3

Operating Instructions — TM 515
2020-3 A
Fig 2-3 Bail Usage and Storage
2-4
REV A JAN 1980

Operating Instructions — TM 515
LINE VOLTAGE SELECTOR & FUSE
AFTER REMOVING THE REAR COVER AND BEFORE
PLUGGING LINE CORD IN:
1 Check, through the clear plastic cover, that the
appropriate Line Selector 8lock is in the In-Service
position for the line voltage you expect to use this
instrument on Also check that the proper Fuse is in the
Line Fuse Holder that screw mounts into the rear of this
instrument (Fig 2-4A)
c Turn the Fuse Holder Knob in the direction of the
arrow and pull it clear of the instrument Remove
improper Fuse and install proper one (Alternate &
Spare Fuses are stored in blank holders on the
Main Interface Board It will be necessary to
remove the Power Supply from the cabinet to
obtain these fuses See Cabinet Removal direc 
tions under Maintenance Section 4 of this
manual )
3 Pull the ac Power Cord clear of the Fan-Exhaust
Housing
2 If a change is needed, follow these steps:
a Remove the two hold-down screws on the clear
plastic line selector cover and lift it off This gives
easy access to the Line Selector Blocks located on
the rear of this instrument See Figs 2-4 and 2-5
b Remove Improper Block and then install Proper
Block for Low Medium, or High line voltage
expected Install Improper Block on the storage
pins so it doesn't get lost, and replace the Clear
Plastic Cover
4 If necessary, change the line cord Power Plug to
match the power source receptacle or use an adapter Also
make sure the Power Switch on the back is OFF
5 Plug the cord into the power source
6 Insert the desired plug-ins
7 This completes Installation and Pre-Turn On
UNE
MOUNTING POWER SELECTOR MOUNTING
SCREW SWITCH BLOCK SCREW
FUSE POWER
CORD
STORAGE
2020-15
Fig 2-4A Rear View
REV A JAN 1980
2-5

Operating Instructions — TM 515
PNP'S
SPARE
LINE
FUSE
NPN ’ S
2020 16
Fig 2-48 Front View
26
REV A JAN 1900

Operating Instructions — TM 515
Universal Transformer
Line
Selector
Block
Position
Regulating Ranges
120 Volts Nominal 220 Volts Nominal
L
90 VAC to 100 VAC
180 VAC to 220 VAC
M
99 VAC to 121 VAC
198 VAC to 242 VAC
H
108 VAC to 132 VAC 216 VAC to 268 VAC
Line Fuse
Data 3 A Slow-blow 1 6 A Slow-blow
Selector
Block
8 6 3 A
8 A
Brown
Red
2020-5A
Fig 2-5 Une Voltags Selector and Fuse
REV A JAN 1980
2-7

Section 3 — TM 515
MAINTENANCE
GENERAL
Introduction
This section of the manual is meant to support the
entire TM 500- Series family of modules with a general
coverage of the most commonly-needed service informa 
tion pertinent to preventive maintenance, trouble 
shooting ordering parts, and replacing components and
sub-assemblies
Cabinet Removal
Exterior Loose dust may be removed with a soft cloth
or a dry brush Water and a mild detergent may be used
Abrasive cleaners should not be used
Interior Cleaning the interior of any unit should
precede calibration since the cleaning process could alter
the settings of calibration adjustments Use low-velocity
compressed air to blow off accumulated dust Hardened
dirt can be removed with a soft brush, cotton-tipped swab,
or a cloth dampened in a solution of water and mild
detergent
WARNING I
Dangerous potentials exist at several points
throughout the s stem. When the s stem must be
operated with the cabinet removed, do not touch
exposed conections or components. Some tran 
sistors have voltage present on their cases.
Disconnect power before cleaning the s stem or
replacing parts.
Preventive Maintenance
Preventive maintenance steps performed on a regular
basis will improve the reliability of the instrumentation
systems However, periodic checks of the semiconductors
in the absence of a malfunction are not recommended as
preventive maintenance measures See Semiconductor
Checking information under Troubleshooting Techni 
ques which follow A convenient time to perform preven 
tive maintenance is just before instrument calibration
Two screws on the rear panel secure the case to the
TM 515 Power Unit Unscrew them and lift the power unit
straight up to take the two apart Do not operate the
system with the case removed any longer than necessary
for troubleshooting and calibration Re-install the power
unit to protect the interior from dust and to remove
personnel shock hazards, as well as provide proper
ventilation
When reinstalling the power unit in the case, care
should be taken to align the Power Supply mounts with
their respective holes in the Chassis (Support) Assembly
You may find it easier to fit the case to the supply Look
down through the front end of the open case to make sure
the mounts align with their respective holes in the
assembly Then, carefully holding the two units together,
invert the whole assembly and screw the two mounting
bolts into place See Fig 3-1
Cleaning
Avoid using chemical cleaning agents that might
damage plastic parts. Avoid chemicals containing
benzene, toluene, x lene, acetone, or similar
solvents.
REV B JAN 1980 3-1