Panasonic KX-G8300 Service Manual And Technical Manual page 50

Lo Gerke
Table 1 Adjustment Points and Ratings
Adjustment Adjustment Item Adjustment Check Point & Rating Remarks
Block
Point
Power
Frequency of DC/DC VR301
10301 pind
4-9
Supply Converter 90 kHz
Board
ris
Output Voltage
VR302
CN301 piné
4-9
412 VDC (12.1 ~ 12.2 VDC)
Input overvoltage
Voltage between anode
4-9
protect
and cathode of D301
Signal monitor: anode of
D310
oscillation stops when
voltage between anode
and cathode of D301
exceeds 42V.
CRT display | Horizontal oscillator
Pin 9 of IC 401: 24.325 ore 4-12-2
board
frequency
(23.825 ~ 24.825 kHz)
Vertical oscillator
Adjust so that no screen
ina 2.3
frequency sync misalignment occurs.
Screen centering
Centering
Adjust the screen center to | 4-12.1
magnet within 1/16" of the CRT
center.
Horizontal width
L501
Screen width: 3 25/32" ~
3 15/16"
Vertical size
Screen height: 4 9/16" ~
4 23/32"
Vertical linearity
4-12.4
x1,x2: 1 7/8" ~ 131/32"
yt,y2: 2 9/32" ~ 2 11/32"
Brightness
Operation: Maximum gain, | 4-12.5
maximum brightness;
adjust to level at which the
retrace can not be seen.
Focus
Adjust for optimal image 4-12.6
display.