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Maintenance
6–8
SPG 422 Service Manual (B034000 and above)
Part Number Suffix.
This portion of the part number often varies between
members of the same family to denote various types or because the circuit board
contains factory-modified circuitry. Always look up this number in the parts list.
Be sure that it is for your instrument serial number. See the Replaceable
Electrical Parts list Serial Number/Assembly Effective/Discontinued column for
the range in which your instrument serial number falls.
Having the pieces of information from the Replaceable Parts List, plus the
instrument type, serial number, and software version number (if applicable)
ensures that you will receive the module required to return the instrument to
complete operation.
Replacement parts are available through the local Tektronix field office or
representative. However, many common electric parts are available through local
sources. Using a local source, where possible, will eliminate shipping delays.
Changes to Tektronix instruments are sometimes made to accommodate
improved components, as they become available, and to improve circuit
performance. Therefore, it is important to include the following information
when ordering parts:
1. Part Number
2. Instrument Type or Number
3. Serial Number
4. Modification or Option Number (if applicable)
The instrument consists of etched circuit boards. All of the circuit boards are
designed as assemblies. Each assembly has as alphanumeric designation. These
assemblies are listed at the beginning of the Replaceable Electrical Parts list of
this manual.
There are several troubleshooting aids that the SPG 422 provides. These include:
Diagnostic LEDs, the diagnostics from the front panel, and the S1 diagnostic
switch on the Digital board.
Factory Replacement
Parts
Etched Circuit Boards
Troubleshooting Aids
Summary of Contents for SPG 422
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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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Page 265: ...9 45 SPG 422 Service Manual 53654 48 1018 2 94 4 7 857 PART OF A5 OPTION 1 BOARD ...
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