2-4
VPL-ES7
2-5. V
COM
Adjustment
.
By the Ernie Service tool, the V COM data is not replaced. Therefore, perform the V COM Adjustment
when optical data is replaced by the Ernie Service tool.
.
When the EEPROM is replaced, the V COM data is inherited so that the V COM adjustment is not
necessary.
If
fl
icker is signi
fi
cant on the screen, perform the V COM adjustment.
Procedure: VPL-ES7
1. Input the 100 %
fl
at-
fi
eld signal to the INPUT A connector and allow the warm-up of 10 minutes
aging at a minimum.
2. Enter the service mode and change to page 4 “Vcom & Misc” page.
3. Input the XGA, R-single color, 30 %, single-line ON/OFF signal.
4. Move the cursor key until it is positioned at Vcom-R Normal.
5. Adjust the V com-R Normal value until
fl
icker is reduced to minimal by
[*]
,
[&]
key.
6. Change the input signal to the XGA, G-single color, 30 %, single-line ON/OFF signal.
7. Move the cursor key until it is positioned at Vcom-G Normal.
8. Adjust the V com-G Normal value until
fl
icker is reduced to minimal by
[*]
,
[&]
key.
9. Change the input signal to the XGA, B-single color, 30 %, single-line ON/OFF signal.
10. Move the cursor key until it is positioned at Vcom-B Normal.
11. Adjust the V com-B Normal value until
fl
icker is reduced to minimal by
[*]
,
[&]
key.
12. Reverse the “Image Flip” upside-down and right-to-left, and repeat the above adjustment procedure
from step 2 to step 11.
Vcom & Misc.
Vcom-R Normal
Vcom-G Normal
Vcom-B Normal
Vcom-R Flip
Vcom-G Flip
Vcom-B Flip
EDID Write Protect
ROM Version:
82
89
83
88
88
88
ON
0.06
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