Panasonic KX-G8300 Service Manual And Technical Manual page 58

LO Gets RIV)
4-12-4 Horizontal / Vertical Screen Size and Linearity Adjustments:
W: 35/8" to 3 13/16" (92 to 97 mm)
H: 47/8" to 5 1/8" (124 to 130 mm)
Adjust VR413 so that x1, x2, y1 and y2 of the screen come within the following ranges:
x1 = x2 1 13/16" to 1 7/8" (46 to 48.5 mm)
yl = y2 2 7/16" to 2 9/16" (62 to 65 mm)
CRT display screen
Fig. 60
4-12-5 Brightness Adjustment:
1) Operate the radar.
2) Turn the GAIN control on the display unit clockwise as far as it will go and press the BRILL button
to establish the maximum brightness mode.
3) In a dark place (if possible) attach a hood, watch the screen and adjust R510 to a level where
the retrace is no longer seen in the no-signal areas (areas without characters or images).
4-12-6 Focus Adjustment
1) Operate the radar and observe a suitable target on the display.
2) Adjust R531 on the display board so that the focus is optimized.
When adjusting the focus, remove the heat sink and power supply board (keep the connectors
connected), and adjust R531 as shown bellow.