Tektronix CSA 803C Marine Radio User Manual


 
Diagnostic Troubleshooting
Maintenance
6Ć94
TableĂ6Ć11:ăExecutive Processor Status LED Configuration
DS307 DS306 Significance
ON ON PowerĆOn
ON OFF Kernel Tests Executing
OFF ON Kernel Tests Failed
OFF OFF Kernel Tests Finished
GND +5V
TP201
(MSB)
TP205
(LSB)
DS307
DS306
Figure 6Ć33:ăA17 Executive Processor Board Test Point and Status LED Locations
Table 6Ć12 lists the Executive processor manual tests and verification proceĆ
dures. If the conditions specified in the verification procedure listed are not
met, then the suspect FRUs can be found using the (?) Help function.
These tests are performed manually and produce no error index code
displays. They are included to help you locate faulty boards that the Kernel
or SelfĆTest diagnostics possibly did not locate. Interconnections such as the
A13 Mother boards cables and the power supply boards are not listed;
however, these interconnections are considered as possible problem
sources.