Tektronix TM 515 User manual

Ttektronix
COMMUTED7D EXCELLENCE
TM 515
FIVE COMPARTMENT
PORTABLE
POWER MODULE
INSTRUCTION MANUAL
Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon 97077 Serial Number
070-2020-02
Product Group 75 First Printing SEP 1975
Revised JUL 1988

Copyright ®1975. 1980 Tektronix. Inc. All rights reserved
Contents of this publication may not be reproduced in any
lorm without the written permission of Tektronix. Inc.
Products of Tektronix. Inc. and its subsidiaries are covered
by US. and foreign patents and/or pending patents.
TEKTRONIX. TEK. SCOPE-MOBILE, and
istered trademarks of Tektronix. Inc
are reg-
Printed in U S A. 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

TM 51
TABLE OF CONTENTS
Page
UST OF ILLUSTRATIONS ij
UST OF TABLES ij
OPERATORS SAFETY SUMMARY ijj
SERVICE SAFETY SUMMARY v
OPERATORS PART
Section 1SPECIFICATION 1-1
Introduction 1-1
Instrument Description 1-1
Performance Conditions 1-1
Electrical Characteristics 1-1
Physical Characteristics 1-3
OPERATORS PART—ENGUSH
Section 2OPERATING 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 aSystem 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 BJUN 1980

TM 515
TABLE OF CONTENTS (cont)
SERVICE PART
Page
Section 3MAINTENANCE 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 4OPTIONS 4-1
Option 54-1
Option 64-1
Option 74-1
Section 5REPLACEABLE ELECTRICAL PARTS 5-1
Section 6DIAGRAMS AND CIRCUIT BOARD
ILLUSTRATIONS
Power Module Interface Pin
Assignments
Detailed Block Diagram
Schematic Diagram
Parts Location Grid and Reference
Tables
Option 6Parts Location
Section 7REPLACEABLE MECHANICAL PARTS 7-1
Exploded View
Accessories
CHANGE INFORMATION
il REV AJUN 1980

TM 515
LIST OF ILLUSTRATIONS
Figure Page
TM 515 Five Compartment Power Module. .vi
1-
1Dimensional Diagram 1-4
2-
1Interlace 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-
5Line Voltage Selector and Fuse 2-7
3-
1Reassembly 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 ill

OPERATORS SAFETY SUMMARY
TM 515
The general safety information in this part of the summary
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 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.
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 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 apower cord that is in good condition.
Refer cord and connector changes to qualified service
personnel.
SYMBOLS
In This Manual
AThis symbol indicates where applicable
cautionary or other information is to be
found.
on Equipment
DANGER —High voltage.
Protective ground (earth) terminal.
ATTENTION —refer to manual.
Power Source
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.
As Marked
®
A
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.
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 aplug-in extender.
REV A JUN 1980 V

TM 515
SERVICE SAFETY SUMMARY
FOR QUALIFIED SERVICE PERSONNEL ONLY
Refer also to the preceding Operators Safety Summary.
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 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.
vi REV AJUN 1980

Section 1—TM 515
SPECIFICATION
INTRODUCTION
Instrument Description
The TM 515 is afive-wide power module compatible
with most TM 500 plug-ins. It provides unregulated ac and
dc supplies and nondedicated power transistors for use by
the plug-ins. This mainframe does not have ahigh-power
compartment but does feature forced-air cooling.
Available options allow the rear interface 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 Vto +40.0 V
PARD (Periodic and Random <2.5 VPP
Deviation)
Maximum load 350 mA
'1
Maximum load di/dt 10 mAJfjs
-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/*/s
25 Vac (2 each)
Range 25.0 Vrms +10%; -15%
Maximum load 25 VA
Maximum floating V350 Vp^
REV A JAN 1980 1-1

Specification—TM 515
Table 1-1 (cont)
1
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* 35 Wdc or 75 VAac
Combined Power Draw sharing
limitation* VAac +2.1 Wdc <75
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
•Worst case; low line-lull load and high llna-no load values including PARD.
6At nominal line voltage.
Table 1-2
SERIES PASS TRANSISTORS
~
Characteristics Performance Requirements Supplemental Information
Type One each NPN and PNP per com partment.
Maximum dissipation 7.5 Weach. 15 Wtotal.
Table 1-3
SOURCE POWER REQUIREMENTS
Characteristics Performance Requirements Supplemental Information
Voltage ranges Sel ect abl e100 V. 110V. 120 V, 200 V. 220 V.
and 240 Vnominal line, ±10%.
Line frequency 48 Hz to 60 Hz
Option 648 Hz to 400 Hz
Maximum power consumption 240 W
Fuse data
100 V, 110 V. 120 Vranges 3A, 3AG, slow blow
200 V. 220 V. 240 Vranges 3A. 3AG. slow blow
1-2 REV AJAN 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'
Characteristics Information
Overall Meets or exceeds MIL-T-28800B. class 5requirements 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°, 4in., or equilibrium, whichever occurs first
Transportation Qualified under National Safe Transit Association Preshipment
Test Procedures 1A-B-1 and 1A-B-2.
With plug-ins; soma plug-ins require additional limitations.
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 S15
Fig. 1*1 Dimensional Diagram.
1-4 @AUG 1981
.sooec'
4—
4-i^ooptr
i-ii*oerF

Section 2—TM 515
OPERATING INSTRUCTIONS
GENERAL
Installation
For full installation instructions refer to the procedure
at the end of this section.
Power Source
TheTM 515 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. The
standard instrument has a48 Hz to 60 Hz line frequency
range for fan operation. Option 6extends 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.
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.
Each plug-in is provided access toa 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.
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 asafe operating level. These devices automatically
return power to the unit when the internal temperatures
return to asafe level.
Since the TM 515 can be stored in temperatures
between -40°Cand +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 5IS should be turned oil before inserting or
removing any plug-ins as arcing may occur and
result in circuit damage.
Module Installation
1. Check the location of the plastic barriers on the
TM 515interconnectingjacktoensurethat their 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 BJAN I960 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. Replacethe 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 powertothe plug-in. Press
these switches to activate these plug-ins once the Modular
Power is turned on.
BUILDING ASYSTEM
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 6and 7to
ensurethat incompatible plug-ins cannot beinserted. See
Fig. 2-1. Acompatible plug-in 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-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 afunctional
family will have asecond 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 asecond 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
SIGNAL SOURCE MEASUREMENT POWER SUPPLY
FAMILY KEY FAMILY KEY FAMILY KEY
J10 J20 J30 J40 J50
2020-6
Fig. 2-1. Interlace Board.
2-2 REV BJAN 1980

Operating Instructions—TM 515
interlace board, using pins 14 through 28 (both Aand B
sides) of the interconnecting jacks. For afurther descrip-
tion of this see Option 5in 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 interlace. Once having
made interconnections of aspecialized nature, it is
recommended that barrier keys be installed to ensure
module compatibility with the wiring.
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
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).
USE OF BAIL
The Single Angle Bail Wire used to hold this cabinet of
instruments at aconvenient viewing angle is stored inside
thefront 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
Fig. 2-2. End Clamp Detail.
REV A JAN 1980 2-3

Operating Instructions— TM 515
Fig. 2-3. Ball Usage and Storage.
2-4 REV AJAN 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 Block 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).
2.
If achange 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.
bRemove 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.
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 4of this
manual.)
3. Pull the ac Power Cord clear of the Fan-Exhaust
Housing.
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.
Fig. 2-4A. Rear View.
REV AJAN 1980 2-5

Operating Instructions—TM 515
2020 16
SPARE
LINE
FUSE
TM 515 POWER UNIT
(Without Cabinet. Front View) f
PNP-S
NPN’S
Fig. 2-4B. Front View.
26 REV AJAN 1980

Operating Instructions—TM 515
Universal Transformer
Line Regulating Ranges
Selector
Block
Position 120 Volts Nominal 220 Vo!Volts Nominal
90 VAC to 100 VAC 180 VACto 220 VAC
99 VAC to 121 VAC 198 VAC to 242 VAC
108 VAC to 132 VAC 216 VACto 268 VAC
Line Fusd
Data 3 ASlow-blow 1.6 ASlow-blow
2020-5A
Fig. 2-5. Uns Voltage Selector and Fuse.
REV AJAN 1980 2-7

Section 3—TM 515
MAINTENANCE
GENERAL
Introduction
This section ot 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
WARNING
Dangerous potentials exist at several points
throughout the system. When the system 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 system or
replacing parts.
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 makesure
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, xylene, acetone, or similar
solvents.
Exterior. Loose dust may be removed with asoft cloth
or adry brush. Water and amild 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 asoft brush, cotton-tipped swab,
or a cloth dampened in asolution of water and mild
detergent.
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 amalfunction are not recommended as
preventive maintenance measures. See Semiconductor
Checking information under Troubleshooting Techni-
ques which follow. Aconvenient time to perform preven-
tive maintenance is just before instrument calibration.
^2020-7
Fig. 3-1. Rea»»embly Guide-Pin Alignment.
REV BJAN 1980 3-1