Onwa Marine Electronics KR-12X8 - Manual (Page 67)

This area can be turned on/off on the MENU.
Note: This setting should be done after other adjustment are finished.
VIDEO
Magnetron heater voltage
Magnetron heater voltage is formed at the MOD Board of the antenna unit and
preadjusted at the factory for use with any length of signal cable. Therefore no
adjustment is required. However, verify heater voltage by following the procedure
below.
1. Turn on the radar(if it is not already on) and set it in stand-by.
2. Open the antenna housing (radome) cover. Connect a multitester, set to 10V DC
range.
3. Close the antenna housing cover and tighten the fixing bolts.
Model Check point Rating Adjustment
Point
KR-1238/1538
KR-1268/1568
Tp803
on MD Borad
#4,#6
Tp803
on MD Borad
#4,#6
7.4~7.6V
7.4~7.6V
V 801 R
V 801 R
60