13-5
IM 760201-01E
Troubleshooting, Maintenance, and Inspection
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App
Index
Code Message Solution Refer to
section
875 Master/Slave Synchronization Measurement
cannot be set to Slave, while sync source, PLL
source or trigger source is set to Ext Clk.
— 4.7, 6.3,
7.5, 12.6
Error in System Operation
Code Message Solution Refer to
section
901 Failed to backup setup data.
Maintenance service is required.
The system has been initialized. 3.4
902 System RAM failure. Maintenance service is required. —
903 System ROM failure. Maintenance service is required. —
904 System RAM failure. Maintenance service is required. —
915 EEPROM SUM error. EEPROM may be damaged. Maintenance service is
required.
—
919 Module installation condition and setup parameters
do not match.
The system has been initialized.
Maintenance service is required.
—
921 System Failed to Draw Display. Maintenance service is required. —
922 Failed in communication with DSP. Maintenance service is required. —
923 Transmit data abnormality from DSP. Maintenance service is required. —
926 The USB device’s power consumption exceeded
the capacity of the USB hub.
— 14.10
927 Disconnected USB device port 1,
because overcurrent was detected.
10.2
928 Disconnected USB device port 2,
because overcurrent was detected.
10.2
929 A USB mass storage device that is greater than 137
GB in capacity has been connected.
Be careful in using this device.
If an area exceeding 137 GB is accessed,
—
930 Disconnected the connection, because a 10BASE-T
Ethernet device was detected.
This Instrument supports 100BASE-TX only. 14.2
Note
If the system is not operating correctly and servicing is necessary, try initializing the WT500. It
may recover.
13.2 Error Messages and Troubleshooting Methods
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