Tektronix 1106, PP-7549/U Technical Manual
TM 11-6625-2978-14
TECHNICAL MANUAL
OPERATOR’S, ORGANIZATIONAL,
DIRECT SUPPORT AND GENERAL SUPPORT
MAINTENANCE MANUAL
FOR
POWER SUPPLY PP-7549/U
(TEKTRONIX MODEL 1106)
(NSN 6130-01-018-1226)
HEADQUARTERS, DEPARTMENT OF THE ARMY
18 FEBRUARY 1982
SAFETY STEPS
TO FOLLOW IF SOMEONE
IS THE VICTIM
DO NOT TRY TO PULL OR GRAB THE INDIVIDUAL
IF POSSIBLE, TURN OFF THE ELECTRICAL POWER
IF YOU CANNOT TURN OFF THE ELECTRICAL
POWER, PULL, PUSH, OR LIFT THE PERSON TO
SAFETY USING A WOODEN POLE OR A ROPE OR
SOME OTHER INSULATING MATERIAL
SEND FOR HELP AS SOON AS POSSIBLE
OF ELECTRICAL SHOCK
AFTER THE INJURED PERSON IS FREE OF
CONTACT WITH THE SOURCE OF ELECTRICAL
SHOCK, MOVE THE PERSON A SHORT DISTANCE
AWAY AND IMMEDIATELY START ARTIFICIAL
RESUSCITATION
This manual includes copyright material reproduced by permission of the Tektronix, Inc.
ECHNICAL MANUAL
T
DEPARTMENT OF THE ARMY
O. 11-6625-2978-14
N
W
OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT,
AND GENERAL SUPPORT MAINTENANCE MANUAL
FOR
POWER SUPPLY PP-7549/U
(TEKTRONIX MODEL 1106)
(NSN 6130-01-018-1226)
REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS
You can help improve this manual. If you find any mistakes or if you know
of a way to improve the procedures, please let us know. Mail your letter, DA
Form 2028 (Recommended Changes to Publications and Blank Forms), or DA
Form 2028-2 located in the back of this manual direct to Commander, US Army Communications-Electronics Command, ATTN: DRSEL-ME-MQ, Fort
Monmouth, NJ 07703.
In either case, a reply will be furnished direct to you.
TM11-6625-2978-14
HEADQUARTERS
ASHINGTON, DC, 18 February 1982
C HAPTER 1.
S
ECTION
C HAPTER 2.
S
ECTION
C HAPTER 3.
S
ECTION
C HAPTER 4.
S
ECTION
C HAPTER 5.
S
ECTION
SECTON
C HAPTER 6.
S
ECTION I.
II.
III.
II.
II.
III.
II.
II.
II.
TABLE OF CONTENTS
Paragraph
INTRODUCTION
I.
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE UPON RECEIPT AND INSTALLATION
I.
Service Upon Receipt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATING INSTRUCTIONS
I.
Function of Controls and Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Battery Operation
THEORY OF OPERATION
I.
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation Under Unusual Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
MAINTENANCE
I.
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CALIBRATION
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration During Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . .
1-1
1-7
1-11
2-1
2-4
3-1
3-5
4-1
5-1
5-3
6-1
6-2
Page
1-1
1-1
1-2
2-1
2-1
3-1
3-1
3-1
4-1
4-2
5-1
5-1
6-1
6-1
i
APPENDIX
S
ECTION
S
ECTION
A.
REFERENCES . .
B.
MAINTENANCE
I.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Allocation Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
II.
III.
Tool and Test Equipment Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ALLOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Paragraph
B-1
Page
A-1
B-1
B-3
B-4
ii
Figure 1-1. Power Supply PP-7549/U (1106 Battery Pack) Being Instlled Under a Portable Oscilloscope.
1-0
CHAPTER I
INTRODUCTION
Section I.
1-1. Scope
This manual describes Power Supply PP-7549/U
(fig. 1-1) and provides instructions for its in-
stallation, operation, and maintenance. Power Supply PP-7549/U is the joint Army-Navy nomenclature and type number which has been applied to
the commercially available Tektronix Model 1106
Battery Pack.
1-2. Index of Technical Publications
Refer to the latest issue of DA Pam 310-4 to deter-
mine whether there are new editions, changes, or ad-
ditional publications pertaining to the equipment.
1-3. Maintenance Forms, Records, and Reports
a. Reports of Maintenance and Unsatisfactory
Equipment. Department of the Army forms and
procedures used for equipment maintenance will be
those prescribed by TM 38-750, The Army Main-
tenance Management System.
b. Report of Packaging and Handling Deficien-
cies. Fill out and forward SF 364 (Report of
Discrepancy (ROD)) as prescribed in AR
735-11-2/DLAR 4140.55/NAVMATINST 4355.73/
AFR 400-54/MCO 4430.3E.
c. Discrepancy in Shipment Report (DISREP) (SF
361). Fill out and forward Discrepancy in Shipment
Report (DISREP) (SF 361) as prescribed in AR
55-38/NAVSUPINST 4610.33B/AFR 75-18/MCO
4610.19C/DLAR 4500.15.
GENERAL
1-4. Reporting Equipment Improvement
If your Power Supply PP-7549/U needs im-
provement, let us know. Send us an EIR. You, the
user, are the only one who can tell us what you don’t
like about your equipment. Let us know why you
don’t like the design. Tell us why a procedure is hard
to perform. Put it on an SF 368 (Quality Deficiency
Report). Mail it to Commander, US Army Communications-Electronics Command, ATTN: DR-
SEL-ME-MQ, Fort Monmouth, NJ 07703. We’ll
send you a reply.
1-5. Administrative Storage
Administrative storage of equipment issued to and
used by Army activities will have preventive main-
tenance performed in accordance with the PMCS
charts before storing. When removing the equip-
ment from administrative storage the PMCS should
be performed to assure operational readiness.
Disassembly and repacking of equipment for ship-
ment or limited storage are covered in paragraphs
2-1 and 2-2.
1-6. Destruction of Army Electronics Materiel
Destruction of Army electronics materiel to prevent
enemy use shall be in accordance with TM
750-244-2.
Recommendations (EIR)
Section Il. DESCRIPTION AND DATA
1-7. Purpose and Use
Power Supply PP-7549/U is a dc power source for
operating portable Oscilloscope OS-261/U
(Tektronix Model 475 Option 7) away from ac power
sources. Power Supply PP-7549/U is sold commercially as a Tektronix, Model 1106 Battery Pack.
Power Supply PP-7549/U is also referred to as the
battery pack throughout this manual.
1-8. Description
Power Supply PP-7549/U is a self-contained por-
table battery pack equipped with a dc cable for connecting to an oscilloscope allowing operation away
from ac power recepticals. It also has an ac cable
which enables connection to an ac circuit for
recharging.
1-9. Use Option
a. The separate battery pack capability permits a
choice of battery operation or ac line operation.
During charging of the battery pack, the
oscilloscope may be operated from the ac line
without detaching the battery pack.
oscilloscope may be detached from the battery pack,
while it is charging, and used elsewhere with either
another battery pack or ac line. The battery pack
and oscilloscope may be separated easily and
quickly for carrying ease.
The
1-1
b. Refer to the oscilloscope technical manual for
information regarding input power switch position
when changing to or from battery pack operation.
1-10. Specifications
a. AC Requirements.
Ac power source is required
only for battery charging. Standard instrument: 100
to 132 Vac or 200 to 264 Vac, 50 to 400 Hz. Standard instrument with an internal connection
change: 90 to 120 Vac or 180 to 240 Vac, see the
maintenance section of this manual for further information 50 to 400 Hz. Power line consumption is
40 watts maximum at 115 Vac, 60 Hz.
b. Power Output. 22 to 24 Vdc for 7 ampere-
hours. 5 A maximum.
Section Ill. SAFETY CONSIDERATIONS
c. Battery Operating Time. Approximately 140
watt-hours from fully-charged batteries.
d. Battery Charge Time. 14 to 16 hours (0° C to
40° C).
e. Temperature.
Operating, 0° C to 40° C. 0° C to
40° C will not noticeably reduce the battery
capacity. Storage outside this range will reduce bat-
tery efficiency and capacity. Non-operating; with
batteries
-40° C to +60° C; without batteries,
-55° C to +75° C.
f. Physical. Weight is 16 pounds. 11.5 inches
wide. 17.0 inches long, including feet and handle. 2.6
inches high, including feet. Combined height of battery pack and oscilloscope is approximately 8.4 inches.
1-11. Charging
--
The instrument is intended to be operated from a
single-phase ac power source having one currentcarring conductor (the Neutral Conductor) at
ground (earth) potential. Operation from power
sources where both current-carrying conductors are
live with respect to ground (such as phase-to-phase
Table 1-1. Power Cord Conductor Identification
Conductor
Ungrounded (Line)
Grounded (Neutral)
Grounding (Earthing)
Brown
Blue
Green-Yellow
1-13. AC Power Cord
The instrument has a three-wire power cord with a
three-terminal polorized plug for connection to the
power source and safety-earth. The ground (earth)
terminal of the plug is directly connected to the in-
strument frame. For electric-shock protection, in-
sert this plug only in a mating outlet with a safety
earth contact.
on a three-wire system) is not recommended, since
only the Line Conductor has over-current (fuse)
protection within the instrument.
1-12. Power Cord Conductor Identification
Identification of power cord conductors is contained
in table 1-1.
Color
Alternate Color
Black
White
Green-Yellow
1-14. Operating
a. The potential at the chassis (frame) of the battery pack is established by the oscilloscope being
powered through the safety-earth conductor
system. For electric-shock protection, connect the
oscilloscope cabinet (frame) to a ground (earth)
reference.
b. If the battery pack ac power cord is connected
to a correctly-wired ac power source, an additional
shock protection circuit is established through the
safety-earth conductor system.
1-2
CHAPTER 2
SERVICE UPON RECEIPT AND INSTALLATION
Section I. SERVICE UPON RECEIPT
2-1. Packaging Data
a. Power Supply PP-7549/U may arrive packed
for either domestic or overseas shipment.
b. When Power Supply PP-7549/U is packed for
overseas shipment it is placed in a lightweight
packing material and is placed in a corrugated carton. The carton is sealed with gummed tape. The
boxed equipment is then placed in a moisturevaporproof barrier, which is heat-sealed, and this
package is placed in a waterproof corrugated carton.
The technical manuals are placed under the lid and
the carton is sealed with waterproof tape. The
packaged battery pack is placed in a wooden shipping container with a waterproof case liner. The
wooden container is reinforced with flat metal
straps.
2-2. Unpacking
a. For unpacking overseas shipment equipment,
proceed as follows:
(1) Cut the metal straps with a suitable cutting
tool, or twist them with pliers until the straps break.
Remove the straps.
(2)
Remove the nails from the top and one side
of the wooden case. Do not attempt to pry off the
sides and top. Such action may damage the equipment.
(3) Remove the corrugated filler from the
packing case and lift the packaged equipment out of
the case.
the sealed moisture-vaporproof barrier. Lift out the
inner corrugated carton.
remove the battery pack. Read and observe the
charging instructions fully before connecting the
battery pack to an oscilloscope.
packing cases. The instructions given in a above,
also apply to unpacking domestic shipments. If
heavy wrapping paper has been used, remove it
carefully and take out the battery pack.
2-3. Check Unpacked Equipment
during shipment. If the equipment has been
damaged, report the damage on SF 964 (para 1-3b).
the packing slip.
Report all discrepancies in accordance with
paragraph 1-3. The equipment should be placed in
service even though a minor assembly or part that
does not affect proper functioning is missing.
modified. Modified equipment will have the MWO
number on the front panel near the nomenclature
plate. Check also to see whether all currently applicable MWO’s have been applied. (Current MWO’s
are listed in DA Pam 310-4).
checked, clean with a soft cloth.
(4) Open the outer corrugated carton and break
(5) Open the inner corrugated carton and
b. The battery pack may be received in domestic
a. Inspect
b. Check the equipment for completeness against
c. Check to see if the equipment has been
d. After the equipment has been thoroughly
the equipment for damage incurred
Section II. INSTALLATION
2-4. Attaching The Battery Pack
a. The battery pack is equipped with four permanently attached clamps that are designed to fit
and attach to the feet of the portable Oscilloscope
OS-261 (Tektronix Model 475 Option 7). Set the
oscilloscope on the battery pack and observe that
the oscilloscope feet seat properly in the clamps.
Press the moveable part of the clamp inward until a
positive fit is accomplished.
b. The dc power cord attached to the battery pack
is to be plugged into the dc socket of the
oscilloscope. Refer to chapter 3 prior to placing the
battery pack into operation.
c. The ac power cord to the battery pack is not
used while the battery pack is in operation. Store
this ac cord in a method so that it will not incur
damage during movement of the oscilloscope and
battery pack from one working area to the next.
d. It may be advantageous to use the battery
pack and the oscilloscope as separate units as each
item is equipped with its own carrying handle. With
care, the two units may be carried short distances
by two persons without disconnecting the dc power
cord while still in the operational mode, thus
realizing the full portability of these two units.
2-1
CHAPTER 3
OPERATING INSTRUCTIONS
Section I. FUNCTION OF CONTROLS AND CONNECTORS
3-1. Battery Level
Meter indicates the approximate state of charge of
the batteries while under load.
3-2. Charger
a. Mode Switch.
(1) Full. Permits the maximum safe charging
rate. Charge rate should be changed to the tricklecharge rate when the batteries have received a full
charge.
(2) Trickle. Reduces the charging rate to main-
tain fully-charged batteries.
Charging occurs as long as the battery pack is con-
nected to the ac power line.
operation.
oscilloscope external dc input.
charger circuit only, as long as the ac line is con-
netted.
Section Il. OPERATION AND INSPECTION
3-3. First-Time Operation
The instrument may be operated with less than fully
charged batteries.
however, charge the batteries at the full-charge rate
for 14 to 16 hours.
3-4. Attaching the Battery Pack
Attach the battery pack to an oscilloscope with Option 7 as follows (see fig. 1-1):
a. Open the latches on the battery pack by pulling
them outward. Set the oscilloscope on top of the battery pack with the feet in the holes in the latches.
Push the latches in until they lock in the feet of the
For first-time
operation,
oscilloscope. Check each corner to verify that each
foot has been latched to the battery pack.
connect the battery pack output to the oscilloscope
(Option 7) dc input. Turn the oscilloscope on. Check
that the battery pack powers the oscilloscope. Observe the BATTERY LEVEL meter. The meter
reading is only indicative of the remaining charge if
the battery pack if powering an oscilloscope. Under
no-load conditions, the battery pack will read full,
even if it is almost discharged.
th) reference before using.
b. ON Position. Lamp indicates charger is on.
c. Line Selector. Select 115 Vac or 230 Vac
d. DC Output (Attached Cord). Connects to the
e. AC Input. Allows ac operation of the battery
b. Set the oscilloscope for 24 Vdc operation and
c. Connect the oscilloscope frame to a ground (ear-
Section III.
WARNING
The nickel-cadmium (NiCd) cells used in
this instrument are capable of delivering
a large amount of current in a short time.
Care must be taken not to short-circuit
the cells. The battery pack is fused at 6
amperes.
Operating Time
3-5.
Battery operating time depends on the load
a.
BATTERY OPERATION
selected and the charge-discharge temperatures. Op-
timum charge and discharge is obtained when the
batteries are operating at temperatures between 20°
C to 30° C. Relative capacities for other tem-
peratures are shown in table 3-1. Battery pack
discharge curves are given in figure 3-1.
b. Optimum operating time is obtained by having
the battery pack vertical (handle on top) during bat-
tery charging.
3-1
Table 3-1. Typical Battery Charge Capacity (referenced to charge-discharge at +20° C to +30° C)
Charge Temperature
-15° C
0° C
+20° C to +30° C
+40° C
c. The approximate battery pack operating time
may be roughly estimated using figure 3-1. For in- manual.
dividual oscilloscope times see the Option 7
40%
65%
40%
Specification portion of the oscilloscope technical
Operating Temperature
+20°
C to +
60%
100%
65%
30° C
+55° C
50%
85%
55%
Figure 3-1. Typical Battey-Pack Discharge Curves.
NOTE
High discharge rates or high ambient
temperatures may raise the battery tem-
The batteries may be damaged by over-charging for
long periods (in excess of 24 hours). Repeated over-
charging shortens the useful life of the batteries.
perature enough to lower their 140 watthour capability.
cell in the battery pack acquires a slightly different
charge characteristic. To provide the best overall
3-6. Battery Discharge
Extensive discharge of the batteries may cause one
or more of the cells to reverse polarity. Repeated
reversal shortens the useful life of the batteries. The
oscilloscope with the Option 7 has a circuit to cut off
its inverter when the external dc source drops below
approximately 22 Vdc. This prevents the battery
operation and maximum operating life, the charge
on the individual battery cells should be equalized
periodically. This can be done without damage to
the battery cells by charging the batteries at the
full-charge rate for 24 hours. Charging should be
done after every 15 charge-discharge cycles or every
30 days, whichever occurs first.
from going into deep discharge.
mode switch to trickle charge if the battery pack is
3-7. Battery Charge
a. A thermal cutout in the battery pack protects
the batteries from overheating during charge time.
The batteries normally become warmer as they
to remain connected to the ac line. This maintains
fully-charged batteries and prevents overcharging.
3-8. Battery Pack Storage
reach full charge potential. If the temperature
surrounding the batteries exceeds the safe operating
level, a thermal cutout switches the charge rate
from 620 milliamperes full-charge to the 60-milliampere trickle-charge rate. When the temperature
returns to a safe operating level, the thermal cutout
returns the charge rate to the 620-milliampere level.
be stored in a charged condition. For best shelf life,
when storing the battery pack for long periods of
time, remove fuse F131 (which may be stored by
placing it in the dc power cord clip on the rear panel).
Fully recharge the batteries about every three
months.
EL6RK002
b. During normal usage or storage, each battery
c. Once the batteries are fully charged, change the
a. The batteries used in the battery pack should
3-2
Loading...