Toshiba TLP510U Service Manual page 20

4-1-2. CCD Adjustment
Note:
This adjustment should be made only when the CCD is
replaced. Before replacing the CCD, fill in the CCD back
side marking on the specified location of the Lens PCB.
• Test point : ––
• Test equipment : ––
• Adjusting point : ––
• Adjusting value : Refer to below.
1. Select the specified marking (figure) of CCD on the
VRG selection box on the CCD Level group of the
adjustment software and click it.
2. In the same way select the specified marking (alpha-
bet) of CCD on the VSUB selection box and click.
4-1-3. Y Gain Adjustment
• Test point : Video output
• Test equipment : TV monitor, waveform monitor
• Adjusting point : ––
• Adjusting value : 80 ± 20%
1. Shoot the color bar chart in full size of the screen. In
this case, check the white section fully occupies the
left side on the screen.
2. Insert the color temperature conversion filter C14.
3. Click the button on the Y Gain group, and
Level Adjust
check the luminance level of the white section is
automatically set to 80 ± 20%. If not, move the chart
position so that the white section is located at left side
of the screen and then click the
again.
4. While observing the waveform monitor, adjust Y Gain
buttons until the white level shows 80 ± 10%.
Fig. 4-1-7
button
Level Adjust
1-18
4-1-4. WB Adjustment
• Test point : Video output
• Test equipment : TV monitor, vector scope, waveform
monitor
• Adjusting point : ––
• Adjusting value : Refer to below.
1. Shoot the color bar chart in full size of the screen. In
this case, make sure the white section fully occupies
the left side on the screen.
2. Insert the color temperature conversion filter C14.
3. Click the button on the WB ref. group, and
Level Adjust
check the luminance level of the white section is
automatically set to 80 ± 10%. If not, move the chart
position so that the white section is located at left side
of the screen and then click the
again.
4. While observing the vector scope, adjust R/B scroll
bar until the white section is located at vector center.
Fig. 4-1-8
4-1-5. C Gain Adjustment
• Test point : Video output
• Test equipment : TV monitor, vector scope, waveform
monitor
• Adjusting point : ––
• Adjusting value : Refer to below.
1. Shoot the color bar chart in full size of the screen. In
this case, make sure the white section fully occupies
the left side on the screen.
2. Insert the color temperature conversion filter C14.
button
Level Adjust