5
Troubleshooting Guide
76
Keysight N1913/1914A Service Guide
Extended Self-Test
Performance Test
Power Reference Level Adjustment Problems
Possible faults
– Calibrator assembly (high probability)
– Main board (low probability)
Instrument
Purpose
Debug tips
Possible faults
Keypad
Verifies the operation of every key
(apart from the power button)
Not applicable
Front panel (defective
keymat or key flex
circuit)
Bitmap display
Verifies that all pixels in the display
can be illuminated in various colors
Not applicable
Front panel (defective
display, display
interface board, or
inverter board)
Type of failures
Debug tips
Possible faults
1 mW power reference level failures
Attempt to adjust the 1 mW power
reference level
Calibrator assembly (high probability)
Main board (low probability)
VSWR failures
Not applicable
Calibrator assembly
Zero set (average Path) failures
Not applicable
Main board
Linearity (average path) failures
Not applicable
Main board
Summary of Contents for N1913
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