Onwa Marine Electronics KR-1338C v.1 - Manual (Page 67)

This area can be turned on/off on the OTHER MENU. For detail, see the descrip-
tion on page 18.
Note: This setting should be done after other adjustment are finished.
Magnetron heater voltage
Magnetron heater voltage is formed at the MOD Board of the antenna unit and pre-
adjusted at the factory for use with any length of signal cable. Therefore no adju-
stment 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-1338
KR-1668
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
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