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Replaceable Electrical Parts
8–2
SPG 422 Service Manual (B034000 and above)
Parts list column descriptions
Column
Column name
Description
1
Component number
The component number appears on diagrams and circuit board illustrations, located in the diagrams
section. Assembly numbers are clearly marked on each diagram and circuit board illustration in the
Diagrams section, and on the mechanical exploded views in the Replaceable Mechanical Parts list
section. The component number is obtained by adding the assembly number prefix to the circuit
number (see Component Number illustration following this table).
The electrical parts list is arranged by assemblies in numerical sequence (A1, with its subassem-
blies and parts, precedes A2, with its subassemblies and parts).
Chassis-mounted parts have no assembly number prefix, and they are located at the end of the
electrical parts list.
2
Tektronix part number
Use this part number when ordering replacement parts from Tektronix.
3 and 4
Serial number
Column three indicates the serial number at which the part was first effective. Column four indicates
the serial number at which the part was discontinued. No entry indicates the part is good for all
serial numbers.
5
Name & description
An item name is separated from the description by a colon (:). Because of space limitations, an item
name may sometimes appear as incomplete. Use the U.S. Federal Catalog handbook H6-1 for
further item name identification.
6
Mfr. code
This indicates the code number of the actual manufacturer of the part.
7
Mfr. part number
This indicates the actual manufacturer’s or vendor’s part number.
Abbreviations conform to American National Standard ANSI Y1.1–1972.
Component Number
A23A2R1234
A23
R1234
Assembly number
Circuit Number
Read: Resistor 1234 (of Subassembly 2) of Assembly 23
A2
Subassembly Number
(optional)
A list of assemblies is located at the beginning of the electrical parts list. The
assemblies are listed in numerical order. When a part’s complete component
number is known, this list will identify the assembly in which the part is located.
Chassis-mounted parts and cable assemblies are located at the end of the
Replaceable Electrical Parts List.
The table titled Manufacturers Cross Index shows codes, names, and addresses
of manufacturers or vendors of components listed in the parts list.
Abbreviations
Component Number
List of Assemblies
Chassis Parts
Mfr. Code to Manufacturer
Cross Index
Summary of Contents for SPG 422
Page 4: ......
Page 14: ...Service Safety Summary x SPG 422 Service Manual B034000 and above ...
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Page 96: ...Performance Verification 4 4 SPG 422 Service Manual B034000 and above ...
Page 102: ...Performance Verification 4 10 SPG 422 Service Manual B034000 and above ...
Page 136: ...Performance Verification 4 44 SPG 422 Service Manual B034000 and above ...
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Page 158: ...Maintenance 6 14 SPG 422 Service Manual B034000 and above ...
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Page 223: ...9 3 SPG 422 Service Manual SPG 422 Component Digital Sync Generator FRONT PANEL 1 ...
Page 224: ...SPG 422 Service Manual 9 4 ...
Page 226: ...SPG 422 Service Manual 9 6 A2 Digital Board Static Sensitive Devices See Maintenance Section ...
Page 227: ...9 7 SPG 422 Service Manual SPG 422 Component Digital Sync Generator CPU 1 ...
Page 228: ...SPG 422 Service Manual 9 8 A7 Serial Filter ...
Page 229: ...9 9 SPG 422 Service Manual SPG 422 Component Digital Sync Generator CPU I O 2 ...
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Page 239: ...9 19 SPG 422 Service Manual SPG 422 Component Digital Sync Generator 108 MHz OSCILLATOR 7 ...
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Page 241: ...9 21 SPG 422 Service Manual SPG 422 Component Digital Sync Generator FINE PHASE 8 ...
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