Sanyo VPC-SX500EX Service Manual page 20

13-1. LCD H AFC Adjustment
Preparation:
POWER switch: ON
Adjusting method:
1. Double-click on the DscCalV122.
2. Select 0 on the LCD "H AFC".
3. While watching the LCD monitor, adjust LCD "H AFC" so
that the edge of the LCD adjustment frame are the same
distance from the left and right edge of the LCD screen.
(A = B)
LCD screen A
13-2. LCD RGB Offset Adjustment
Adjusting method:
1. Adjust LCD "RGB offset" so that the amplitude of the CL173
waveform is 7.3 V 0.3 Vp-p.
CL173 waveform
13-3. LCD Gain Adjustment
Adjusting method:
1. Adjust LCD "Gain" so that the amplitude of the CL173 wave-
form is 4.0 V 0.1 Vp-p.
Note:
13-2. LCD RGB Offset adjustment should always be carried
out first.
CL173 waveform
LCD
adjustment
B
frame
FPC
7.3 V
0.3 Vp-p
4.0 V
0.1Vp-p
13-4. LCD Blue Brightness Adjustment
Adjusting method:
1. Adjust LCD "B Bright" so that the amplitude of the CL171
waveform is VG + 0.2 0.05 Vp-p with respect to the CL173
(VG) waveform.
Note:
13-2. LCD RGB Offset adjustment and 13-3. LCD Gain ad-
justment should always be carried out first.
Waveform (CL173)
Waveform (CL171)
VG
VG + 0.2
0.05 Vp-p