JRC JMA-5312-6 - Tune Adjustment

4
4.2 TUNE ADJUSTMENT
[I] Tune Adjustment
Adjust the tuning control for th
e transmitter and receiver.
The turning control should be adjusted when the system is installed or when the magnetron is replaced.
Procedures 1. Set the 48NM range or more.
2. Open the Serviceman Menu.
3. Perform the following menu open procedure to open the Tune
Adjustment menu.
1. Adjust Menu
→ 1. Tune Adjustment
The tune mode switching is changed to MAN .
The tune dial position is changed to mediun value.
4. Adjust the tune adjustment value so that the tune indicator bar at the
upper left of the display is maximized.
For how to input numeric data on the numeric value input screen, see Instruction manual
Secti
on 3.3.4.
5. Move the cursor onto the ENT button, and press the [ENT] key.
[II] Tune Indicator Adjustment
Set the scale mark at the time of which tuning reached the maximum point.
Procedures 1. Set the 48NM range or more.
2. Open the Serviceman Menu.
3. Perform the following menu open procedure to open the Tune Indicator
Adjust menu.
1. Adjust Menu
→ 4. TXRX Adjustment
→ 3. Tune Indicator Adjust
4. Adjust the tune indicator adjustment value so that the tune indicator bar
at the upper left of the display reaches a point of 80 to 90% of the
maximum.
For how to input numeric data on the numeric value input screen, see Instruction manual
Secti
on 3.3.4.
5. Move the cursor onto the ENT button, and press the [ENT] key.
4-2
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