MDC-7000/7900 Series Chapter 9 Simple fault diagnosis
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9.6 No radar video display
This procedure is applied when no radar video (Echo) is displayed on the display.
1 Press MENU key to display “Menu”.
Select [MAINTENANCE] => [BITE] => [ANT MONITOR] =>.
2 Antenna status will be displayed.
3 Turn trackball to left to complete.
Antenna status criteria in step 2
Connected scanner model name and type:
HIGH VOLTAGE: If the value is other than xxx to xxx, indicates high voltage malfunction.
MAG CURRENT MONI: If the value is other than xx to xxx, indicates magnetron malfunction.
MAG HEATER: If the value is other than xx to xxx, indicates magnetron malfunction.
MOTOR MONI:
TUNE VOLTAGE: If the value is other than xx to xxx, indicates magnetron or Front End Module failure.
RATE OF ROTATION: Antenna rotation (rpm)
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