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LO, Get Kiut
4-5
Magnetron Current Monitor (Check Only)
1)
Operate the radar and set it to the transmit mede.
Voltage between TP1 and TP2
Long mode
1.5 to 2.5 VDC
Short mode
1.0 to 2.0 VDC
4-6
Magnetron heater voltage
(Check only upon installation and when magnetron is replaced.)
Check the following before attaching the top cover of the radome
1)
Set the radar to the standby mode.
(Under no circumstances should it be set to the transmit mode.)
2)
Use a multimeter (for DC voltage measurement) to measure the voltage across the output pins
of the pulse transformer, and check that the voltage is between 5.7 to 6.9 VDC.
Transmitter
Board
(PQUP820ZA)
Pulse transformer
®
Output Pins
1S)
Fig. 54
4-7
Tuning indicator Display Level Adjustment
Preparation
Set the range 12 NM by using the Range up/down key(s).
Set the radar to the transmit mode and turn the TUNE knob to obtain the maximum, indication on the tune
indicator so that a target at a long distance is clearly visible. If necessary, adjust the receiver sensitivity
using the GAIN knob.
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