Adjustment purpose
[Liquid Crystal Panel
Driving Adjustment Circuit]
6. Ghost
Symptom when
incorrectly adjusted
Measuring
instrument
Test point
EXT trigger
Measurement
range
Input signal
Input terminal
To remove ghosts from the screen.
Ghosts appear.
---
---
---
---
shown in the Table
COMPUTER IN terminal
* Make this adjustment only when ghosts remarkably appear on the screen.
* Enter the adjustment command with small alphanumeric letters
1. Connect this PROJECTOR to a personal computer (with Microsoft
Windows
95 Operating System). (Refer to the figure on P.1)
2. Start Microsoft
Windows
95 in the personal computer.
3. Start the communication program [Hyper Terminal] in Microsoft
Windows
95
to open the window. (For setting, refer to Hyper Terminal setting on P.2)
4. Project pictures onto the screen.
Red
5. Supply an SVGA signal (SMPTE (R), No. 35).
6. Operate the signal source to be projected in red monochrome on the screen.
7. Enter the adjustment command [00~30c0
] to the Hyper Terminal window to
minimize the red ghosts. Enter [07], [08], [09], [0a] or [0b] to
for minimum
ghosts.
(*1) When the sent command is displayed, sending is accomplished correctly.
8. Enter command for writing [00~1e68
] to the Hyper Terminal window and
write the changed value onto the EEPROM.
Enter the value of step 7 to
. The current value can be confirmed by
sending the command without entering any value to
. (*1)
Green
9. Supply an SVGA signal (SMPTE (G), No. 36).
10. Operate the signal source to be projected in green monochrome on the screen.
11. Enter the adjustment command [00~30d0
] to the Hyper Terminal window to
minimize the green ghosts. Enter [07], [08], [09], [0a] or [0b] to
for
minimum ghosts. (*1)
12. Enter command for writing [00~1e6a
] to the Hyper Terminal window and
write the changed value onto the EEPROM.
Enter the value of step 11 to
. The current value can be confirmed by
sending the command without entering any value to
. (*1)
Blue
13. Supply an SVGA signal (SMPTE (B), No. 37).
14. Operate the signal source to be projected in blue monochrome on the screen.
15. Enter the adjustment command [00~30e0
] to the Hyper Terminal window to
minimize the blue ghosts. Enter [07], [08], [09], [0a] or [0b] to
for minimum
ghosts. (*1)
16. Enter command for writing [00~1e6c
] to the Hyper Terminal window and
write the changed value onto the EEPROM.
Enter the value of step 15 to
. The current value can be confirmed by
sending the command without entering any value to
. (*1)
No.
Pattern
35
SVGA SMPTE (R)
36
SVGA SMPTE (G)
37
SVGA SMPTE (B)
Table
8
Summary of Contents for S290U
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