Troubleshooting
6- 76
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
Table 6- 7: Action required for module replaced
Module replaced
Adjustment required
1
Software update required
Front panel assembly
No
None
Acquisition board
Yes
2
None
PPC Processor board
No
Installation by Tektronix is
required
MicroATX processor assembly
No
Windows,
instrument application
Display panel or display system
No
None
Power supply
Yes
None
Interconnect boards
No
None
Fans
No
None
O/E Converter, CSA7000B
Series
Yes
None
1
Adjustment must be performed by Tektronix.
2
Replacement of this board must be performed by Tektronix.
BIOS Error Messages
When the MicroATX board powers-on, the BIOS runs power-on-self-tests
(POST) to check the board. The BIOS writes error codes to location 80h and
tries to write the codes to the display. If the error is fatal, then the POST code
indicates the last successful checkpoint reached. Table 6--9 lists the error
messages displayed by the BIOS. Table 6--8 lists the error messages displayed by
the BIOS.
Once the display is enabled, errors are written to the display as text messages.
These messages are always displayed unless the board is configured for silent
boot or headless (no keyboard, mouse, or display) operation.
Table 6- 8: BIOS Error messages
Error message
Description
GA20 Error
Error when switching to protected mode during the memory test.
Pri Master HDD Error, Pri Slave HDD Error
Sec Master HDD Error, Sec Slave HDD Error
Could not read sector.
Pri Master Drive -- ATAPI Incompatible
PRI Slave Drive -- ATAPI Incompatible
Sec Master Drive -- ATAPI Incompatible
Sec Slave Drive -- ATAPI Incompatible
Drive not an ATAPI device. Run Setup, and maker sure device is
set up correctly.
A: Drive Error
No response from drive.
Summary of Contents for CSA7404B
Page 4: ......
Page 14: ...Table of Contents x CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 18: ...Service Safety Summary xiv CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 20: ...Environmental Considerations xvi CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 23: ...Specifications ...
Page 24: ......
Page 55: ...Operating Information ...
Page 56: ......
Page 69: ...Theory of Operation ...
Page 70: ......
Page 74: ...Theory of Operation 3 4 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 75: ...Performance Verification ...
Page 76: ......
Page 80: ...Performance Verification 4 4 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 92: ...Brief Procedures 4 16 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 120: ...Performance Tests 4 44 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 215: ...Adjustment Procedures ...
Page 216: ......
Page 218: ...Adjustment Procedures 5 2 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 219: ...Maintenance ...
Page 220: ......
Page 228: ...Maintenance 6 8 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 308: ...Troubleshooting 6 88 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 310: ...Repackaging Instructions 6 90 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 311: ...Options ...
Page 312: ......
Page 319: ...Replaceable Electrical Parts ...
Page 320: ......
Page 322: ...Electrical Parts List 8 2 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...
Page 323: ...Diagrams ...
Page 324: ......
Page 327: ...Replaceable Mechanical Parts ...
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Page 348: ...Mechanical Parts List 10 20 CSA7404B TDS7704B TDS7404B TDS7254B TDS7154B Service Manual ...