National Instruments NI PXIE-1078 PXI Chassis PXIE1078 TCXO bad not Working

Description

We have 4 units
NATIONAL INSTRUMENTS NI PXI-1078
The fan does not turn on when the power is turned on, and only the red light of the switching power supply reports an error. It should be that the power module is damaged, and the accessories are complete and have not been repaired.
, which are shipped randomly. The equipment is a reference picture and looks roughly the same.
Our company mainly sells second-hand or new brands: Agilent, Keysight, Hewlett-Packard, Keithley, Fluke, Krom, Tektronix, NI, Anritsu, Rohde & Schwarz and other brands.
The following products: oscilloscope, multimeter, network analyzer, spectrum analyzer, wireless integrated tester, Bluetooth tester, high and low frequency signal source, electronic load, digital storage oscilloscope, signal generator, function signal generator, standard signal source, frequency Meter, digital three-meter, LCR digital bridge, spectrum analyzer, DC stabilized power supply, mobile phone program-controlled power supply, capacitance measuring instrument, inductance measuring instrument, sweep frequency signal generator, telephone analyzer, oscilloscope calibrator, three-purpose meter Calibrator, withstand voltage tester, insulation resistance tester, ground resistance tester, leakage current tester, electrical parameter tester, digital power meter, PCI-GPIB card, etc.
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