Panasonic KX-G8300 Service Manual And Technical Manual page 52

LO Getxielt)
Adjustment on Installation
The following adjustments should be made at the time of installation.
4-1 Tuning Adjustment
4-2 Range Reference Adjustment
4-3 Heading Adjustment
4-4 Gain Preset Adjustment
4-5 Tuning Indicator Adjustment
4-6 Magnetron Current (Check Only)
4-7 A.C.Sea Adjustment
4-1 Tuning
1. Transmit with the radar on the 3 n.m. range with the TUNE control and A.C.Sea set at its mid-position
gain at 2 o'clock and wait about 10 minutes for magnetron oscillator to stabilize.
2. Remove the adjustment cover on the front panel of the display unit.
Alarm Volume Timing Adjust
VR151 VR153
aos
QO
VR152 VR154
MAG. Current Test Point
Tune Indicator Adjust
Tuning Coarse
VR155
Heading Adjust
neacing "cue Gain Adjust
VR157
VR156
A.C.Sea Adjust
: Fig. 51
4-2 Range Reference Adjustment
The reference timing differs with respect to the length of the signal cable. Perform the following adjust-
ment.
1) Set the radar at the 0.25 n.m. range to receive echos.
2) Visually select a straight object, e.g., a harbor wall, straight pier, etc.
3) Adjust VR153 on the ADJUSTMENT board so that the straight object appears straight with no
pushing" or "pulling" near the center of the picture. See Fig. 52.