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9.6 Adjustment
9.6.1 General adjustment
Adjustment after component replacement
This section describes the adjustment required as a result of replacement of the main
components.
(a) Replacement of magnetron V101 → Tuning preset
(b) Replacement of front end E101 → Tuning preset
9.6.2 Adjusting a scanner unit
Some scanner unit adjustments are necessary, however, no re-adjustments are necessary since the
scanner unit is thoroughly adjusted at the factory. However, if adjustments become necessary as
a result of the operation checking at inspection or fault repair, make the following adjustments.
High Voltage
Since some sections of the modulator (CME-322 or QME-323) generate a high
voltage of about 4000V, no one except service engineers are allowed to touch
inside of the modulator.
There is a risk of dying or getting a serious injury of any person by electric shock.
1. Adjusting AVR output voltage of a modulator
(a) When the radar is in a transmission mode, set the distance range to 12 nautical miles,
connect a voltmeter between J201-13PIN and GND of modulator CME-322 or CME-323,
and adjust the voltage to +8(V) at RV2.
2. Adjusting a tuning indication level of a receiver
(a) Set the tuning mode to manual when it is set to automatic.
(b) Carry out tuning by setting the distance range to 12 nautical miles or more.
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