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Home > Radar Maintenance and Parts Manuals > > CHAPTER 5. MAINTENANCE
Figure 4-18. PRF Generator PCB P/N 169128-1 Functional Block Diagram
Table 5-1. Tools, Test Equipment and Materials

TM-11-5840-360-14-1-1 Radar Set AN/SPS-64(V)5 (NSN 5840-01-034-3946) Manual
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TM 11-5840-360-14-1-1
CHAPTER 5. MAINTENANCE
NOTE
All voltage measurements taken in this chapter are using a VOM having an input impedance of 20 K ohms per volt. Use
of other meters may cause variations in voltage readings.
SECTION I: INTRODUCTION
4. When it is necessary to make adjustments on
operating equipment, do so using one hand,
5.1 GENERAL
keeping the other hand clear of equipment
chassis.
This chapter provides information and instructions
5. When removing components for servicing,
covering preventive and corrective maintenance for the
always ground the component, its terminals and
AN/SPS-64(V) Radar Sets, versions 1 through 4.
nearby terminals before touching.
Section I includes safety information, tool and test
6. Always deenergize equipment before removing
equipment requirements, and explanation of parts
plug-in printed circuit boards and assemblies.
documentation.
Section  II  contains  preventive
7. Become familiar with the artificial repiration
maintenance schedules and procedures.  Section III
techniques explained in paragraph 1.4.
provides a performance verification procedure for each
radar set. These procedures provide system level fault
WARNING
isolation sorting via references to the individual
equipment troubleshooting charts in Section IV; the
THE POIVER SUPPLIES CONTAINED
troubleshooting references are keyed to performance
IN THE INDICATORS AND RECEIVER
indications.
Section IV provides troubleshooting,
TRANSMITTERS UTILIZE FLOATING
removal/replacement, and alignment procedures, as
COMMON
TRANSMIT
WHICH
applicable, for each equipment used in the AN/SPS-
OPERATE AT DC VOLTAGE LEVELS
64(V) Radar Sets. Section V contains procedures for
UP TO 300 VOLTS.
making RF power, receiver sensitivity (MDS) and
antenna VSWR measurements.
5.3 TOOLS, TEST EQUIPMENT AND MATERIALS
5.2 SAFETY
Table 5-1 lists the tools, test equipment, and
materials  recommended  for  servicing  the  radar.
All equipments used in the AN/SPS-64(V) Radar
Equivalent items may be substituted where necessary.
Sets contain voltages hazardous to life when operating.
Items shown are in addition to the common items
Hazardous ac voltage is present in most equipments
normally carried aboard.
even though the equipment is deenergized, unless the
ship's power circuit breakers associated with the
5.4 PARTS LOCATION AND PARTS LISTS
equipments have been turned off.  The indicator and
receiver-transmitter  equipments  contain  potentially
The locations of major components and assemblies
lethal dc voltages when operating, and can retain
within each AN SPS-64(V) equipment are illustrated in
dangerous dc charge potentials after being deenergized.
this chapter and are referenced by figure number- in the
Maintenance personnel are cautioned to exercise
paragraph devoted to the particular equipment in
extreme care and use common sense when servicing
Section IV.  Detailed assembly and component part
equipments.  The following safety precautions must
location drawings along with their associated parts lists
always be observed.
tabulations are provided as part of the drawing set for
each equipment in Chapter 6.
1. Deenergize equipment and turn off associated
ship's power circuit breakers before servicing
SECTION II: EQUIPMENT PREVENTIVE
whenever possible.
MAINTENANCE
2. Never service an operating equipment alone.
3. When it is necessary to make measurements on
5.5 GENERAL
operating equipment, deenergize the equipment
first,  make  all  necessary  measurement
The  following  paragraphs  provide  information
connections, then energize equipment.
regarding general preventive maintenance practices
applicable to the AN/SPS-64 V) Radar Sets.
5-1






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