This manual describes direct and general support maintenance for Power Supply PP-4763/GRC
testing the equipment. It also lists all the tools, test equipment, and materials needed for
of this chapter.
T h e power supplies and their maior electronic components are described in section
Operating instructions and organizational maintenance are covered in TM 11-5820-765-12.
In this manual, Power Supplies PP-4763/GRC and PP-4763A/GRC are refer-
red to as power supply (*). Specific models are identified by unit
nomenclature, without the GRC designation.
1 - 2 . MAINTENANCE FORMS, RECORDS, AND REPORTS
Department of the Army forms and procedures used for equipment maintenance will be those prescribed
by TM 38-750, The Army Maintenance Management System (TAMMS).
1-3. DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE
Destruction of Army electronics materiel to prevent enemy use shall be in accordance with TM
If your Power Supplies PP-4763/GRC and PP-4763A/GRC need improvement, 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. Put it on an SF 368 (Quality Deficiency Report). Mail it to Com-
m a n d e r , US Army Communications-Electronics Command and Fort Monmouth, ATTN: DRSEL-ME-MP,
Fort Monmouth, New Jersey 07703. We'll send you a reply.
E Q U I P M E N T DESCRIPTION AND DATA
1 - 6 . EQUIPMENT CHARACTERISTICS, CAPABILITIES AND FEATURES
The power supplies function in the same way. Both provide a dc power source for communica-
tions equipment, or for any type of load with similar power requirements.
PP-4763 converts 115 volts alternating current (at) to direct current (de) at a selected regulated
P P - 4 7 6 3 A converts either 115 or 230 volts alternating current (at) to direct current (de) at a
selected regulated voltage.