15-17 Section 15 Maintenance & Inspection
15.4.7.2 MON Check (NKE-2255)
[Operation procedure]
Open the performance monitor status checking screen by performing the following menu operations.
[Menu] button → Maintenance → Diagnosis → MON Check
The following table shows the items that are displayed.
Item Displayed information
TX Level Displays the attenuation level of the radar transmitter in a numeric value
[dB].
The guidelines of attenuation values are as follows.
Normal: -6.9 dB to +7.0 dB
Performance deterioration: -20.0 dB to -7.0 dB
RX Level Displays the attenuation level of the radar receiver in a numeric value [dB].
The guidelines of attenuation values are as follows.
Normal: -6.9 dB to +7.0dB
Performance deterioration: -20.0 dB to -7.0 dB
• When confirming the attenuation value of the transmitter, after opening the dialogue, wait for
one minute, and then read its value.
• If the attenuation value of the transmitter is -7 dB or lesser, or the receiver’s attenuation
indicator is -7 dB or lesser, it indicates that performances of the transmitter/receiver unit are
degrading.
In this case, inspection by the specialized service personnel is required. Contact our dealer, the
nearest service representative or JRC sales.