Sanyo LCD-19R30 Service Manual page 7

3.2.2 Four channels white balance adjustment

3.2.2.1 For AV channel (TV/S-VIDEO/SCART is the same)

Through AV channel, input 8-step gray scale signal (VG848 Timing, input 969, PAT 920), go to

factory menu and access Color Temperature menu page, fix G-GAIN, adjust R-GAIN and B-GAIN to

make the 7

step chromaticity coordinates be (295, 305). Fix G-OFFSET, adjust R-OFFSET and

B-OFFSET to make the 2

adjust R-GAIN, B-GAIN and R-OFFSET, B-OFFSET until both the first and second steps'

chromaticity coordinates be (295, 305).

3.2.2.2 For DVI channel (HDMI is the same)

Through DVI channel, input 8-step gray scale signal (VG848 Timing input 854, PAT 920), go to

factory menu and access color temperature menu page, fix G-GAIN, adjust R-GAIN and B-GAIN to

make the 7

step chromaticity coordinates be (295, 305). Fix G-OFFSET, adjust R-OFFSET and

B-OFFSET to make the 2

adjust R-GAIN, B-GAIN and R-OFFSET, B-OFFSET until both the first and second steps'

chromaticity coordinates be (295, 305).

3.2.2.3 For YPbPr channel

Through YPbPr channel input 8-step gray scale signal (VG848 Timing, input 968, PAT 920), go to

factory menu and access color temperature menu page, fix G-GAIN, adjust R-GAIN and B-GAIN to

make the 7

step chromaticity coordinates be (295, 305). Fix G-OFFSET, adjust R-OFFSET and

B-OFFSET to make the 2

adjust R-GAIN, B-GAIN and R-OFFSET, B-OFFSET until both the first and second steps'

chromaticity coordinates be (295, 305).

3.2.2.4 For VGA channel

Through VGA channel input 8-step gray scale signal (VG848 Timing, input 854, PAT 920), go to

factory menu and access color temperature menu page, fix G-GAIN, adjust R-GAIN and B-GAIN to

make the 7

step chromaticity coordinates be (295, 305). Fix G-OFFSET, adjust R-OFFSET and

B-OFFSET to make the 2

adjust R-GAIN, B-GAIN and R-OFFSET, B-OFFSET until both the first and second steps'

chromaticity coordinates be (295, 305).

step chromaticity coordinates be (295, 305). In this way repeatedly

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