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10
Controller Section
The controller section includes the A2 controller assembly, A19 HP-IB assembly, and
BTl
battery. The presence of a display (graticule and annotation) verifies that most of A2
controller assembly is operating properly.
Troubleshooting Using the TAM
Blank Display
Digital Signature Analysis (DSA)
Display Problems
Line Generators
Blanking
Display Jumbled or Trace Off Screen
Intensity
Bad Characters or Graticule
Long Lines Dimmer Than Short Lines
Analog Zero-Span Problems (Non-Option 007)
Frequency-Count Marker Problems
Frequency Counter
State- and Trace-Storage Problems
Keyboard Problems
Controller Section 10-l