Keysight N1914A - Extended Self-Test; Performance Test; Power Reference Level Adjustment Problems; Possible Faults

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