Recently repaired to Guangdong customers sent a is the German N9000A spectrum analyzer, the customer described the instrument self-calibration error, the following to see the cause of damage to this instrument and the maintenance process.
After detection, the RF front-end mixer is faulty, resulting in no signal detected and self-calibration errors.
Repair process
Replace the damaged device and engineers adjust the indicators.
Repair results
The instrument self-test is normal, the test signal is normal, and the repair is completed.
The above maintenance cases are compiled and released by Aetna Instrument Maintenance Network (www.agitekservice.com), and more attention is paid to the public number: Aetna Test