JRC JMR-92 Series Field Service Manual page 839

7.2 Performance Check
Make performance check on the radar equipment regularly and if any problem is found, investigate
it immediately. Pay special attention to the high voltage sections in inspection and take full care
that no trouble is caused by any error or carelessness in measurement. Take note of the results of
inspection, which can be used effectively in the next inspection work.
Carry out performance check on the items listed in the check list below.
Equipment
Transmitter- Synchronization LED of
receiver unit Receiver
Display unit Video and echoes on the screen
Sensitivity
Brightness
Various markers
Various numerical indications
Lighting
Cleaning the DVD drive
Cleaning the Trackball
Scanner Unit Magnetron current
Performance Monitor
Chapter 7 Troubleshooting
Check List
Item to be checked
7-16
Criteria
The LED is lit during
operation
Can be correctly controlled
7.2.11 Cleaning the lens of
the DVD drive
4.3.4.2 Cleaning the
Trackball
7.2.7 Checking the
magnetron current level of
the scanner unit
[Magnetron Current]
7.2.9 Checking the
performance monitor
status
Remarks
48 NM range