1502C MTDR Service Manual
8–1
Replaceable Electrical Parts
Parts Ordering Information
Replacement parts are available from your Tektronix field office or representative.
When ordering parts, include the part number plus instrument type, serial number,
and modification number (if applicable).
If a part is replaced with a new or improved part, your Tektronix representative will
contact you regarding any change in part number.
A list of assemblies is found at the beginning of the replaceable electrical parts list.
Assemblies are listed in numerical order. When the complete component number
of a part is known, this list identifies the assembly in which the part is located.
The manufacturer code number-to-manufacturer cross index provides codes,
names, and addresses of manufacturers of components listed in the replaceable
electrical parts list.
Abbreviations conform to ANSI standard Y1.1.
(Column 1 of electrical parts list)
A numbering method is used to identify assemblies, subassemblies, and parts. An
example of this numbering method and typical expansions is as follows:
A23A2R1234 = A23 A2 R1234
↓↓↓
Assembly Subassembly Circuit
Number Number Number
Read: resistor 1234 of subassembly 2 of assy 23.
Only circuit numbers appear on the schematics and circuit board illustrations. Each
schematic and illustration is marked with its assembly number. Assembly numbers
are also marked on the mechanical exploded view located in the replaceable
mechanical parts list. A component number is obtained by adding the assembly
number prefix to the circuit number.
This parts list is arranged by assemblies in numerical sequence (e.g., assembly A1
with its subassemblies and parts precedes A2 with its subassemblies and parts).
Chassis-mounted parts have no assembly number prefix and are illustrated at the
end of the replaceable mechanical parts list.
List of Assemblies
Mfr. Code
Number-to-Manufacturer
Cross Index
Abbreviations
Component Number
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