- 5 -
Adjustment purpose
[Liquid Crystal Panel
Driving Adjustment Circuit]
2. Ghost (XL2U)
Symptom when
incorrectly adjusted
Measuring
instrument
Test point
EXT trigger
Measurement
range
Input signal
Input terminal
To remove ghosts from the screen.
Ghosts appear.
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Shown in the table below
COMPUTER IN terminal
* Make this adjustment only when ghosts remarkably appear on the screen.
* Enter the adjustment command with capital alphanumeric letters.
1. Connect this PROJECTOR with a personal computer (with Microsoft
Windows
95/98/Me/XP Operating System). (Refer to the figure on P.1)
2. Start Microsoft
Windows
95/98/Me/XP in the personal computer.
3. Start the communication program [Hyper Terminal] in Microsoft
Windows
95/98/Me/XP to open the window. (For setting, refer to Hyper Terminal setting
on P.2)
4. Set the following items on the picture menu.
CONTRAST . . . . . . . . . . . .0
BRIGHTNESS . . . . . . . . . .0
COLOR TEMP . . . . . . . . . .STANDARD
5. Project pictures onto the screen.
Red
6. Supply an XGA signal (SMPTE(Red), No. 35).
7. Operate the signal source to be projected in red monochrome on the screen.
8. Enter the adjustment command [00~3C09
] to the Hyper Terminal window
to minimise the red ghosts. Enter [000] or [001] to
for minimum ghosts.
The point where the ghost appeared minus 1 is optimum. (*1)
9. Enter command for writing [00~18B3
] to the Hyper Terminal window and
write the changed value onto the EEPROM.
Fill the
with the right 2 digits of the value entered at step 8. (*1)
Green
10. Supply an XGA signal (SMPTE(Green), No. 36).
11. Operate the signal source to be projected in green monochrome on the screen.
12. Enter the adjustment command [00~3C0A
] to the Hyper Terminal window
to minimise the green ghosts. Enter [000] or [001] to
for minimum ghosts.
The point where the ghost appeared minus 1 is optimum. (*1)
13. Enter command for writing [00~18B5
] to the Hyper Terminal window and
write the changed value onto the EEPROM.
Fill the
with the right 2 digits of the value entered at step 12. (*1)
Blue
14. Supply an XGA signal (SMPTE(Blue), No. 37).
15. Operate the signal source to be projected in blue monochrome on the screen.
16. Enter the adjustment command [00~3C0B
] to the Hyper Terminal window
to minimise the blue ghosts. Enter [000] or [001] to
for minimum ghosts.
The point where the ghost appeared minus 1 is optimum. (*1)
17. Enter command for writing [00~18B7
] to the Hyper Terminal window and
write the changed value onto the EEPROM.
Fill the
with the right 2 digits of the value entered at step 16. (*1)
(*1) When the sent command is displayed, sending is accomplished correctly.
The current value can be confirmed by sending the command without
entering any value to
.
No.
Pattern
35
SMPTE (Red)
36
SMPTE (Green)
37
SMPTE (Blue)
