Chapter 14 637
Analyzer Messages
Interpreting Analyzer Messages
Related Assemblies
A7 analog interface, A16 processor/video assembly, A17 memory card,
A25 counter lock, assemblies installed in the card cage.
Troubleshooting Hints
Refer to Figure 9-1, IF/Control Overall Block Diagram, and Figure 9-2,
Figure 9-3, or Figure 9-4, RF Section Overall Block Diagram for your
analyzer, in Chapter 9 for an overview of the assemblies attached to
the I/O bus. Refer also to “Troubleshooting the A15 Motherboard
Assembly” in Chapter 5 for the location of specific I/O signal traces on
related assemblies.
• If a failure code for an I/O bus address or data line occurs, remove
the related assemblies one at a time until the failure message
disappears. Be sure to turn the analyzer power off while removing
and installing each assembly.
❏ If the failure message disappears, suspect the assembly that was
removed last.
❏ If the failure message remains after all related assemblies have
been removed, suspect the A16 assembly.
• If a A16 video RAM fail code occurs, the A16 assembly is defective.
File type incompatible (U)
Indicates that the selected file is not a display image file. The file name
for a display image file is always preceded by an “i.”
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