LX-D1010G
7-4 (PA012)
[LCD panel drive adjustment circuit]
3. Flicker
Purpose of adjustment: To minimize flicker on the images
Symptom when adjustment is incomplete: Flicker appears in the images.
Input signal
Refer to the chart below
Input terminal
Analog RGB
No.
Pattern
22
Red 50% alternate line
horizontal pattern
23
Green 50% alternate line
horizontal pattern
24
Blue 50% alternate line
horizontal pattern
*1 Perform this adjustment only when the flicker is prominent in the video after either the Main
PWB Ass’y or the LCD Block has been replaced.
*2 Perform this adjustment after heat running for 2 minutes over with input test signal.
*3 Input the adjustment commands and values in upper case characters.
1. Use the following as the default values in the IMAGE MENU.
CONTRAST ------------- 0
BRIGHTNESS ---------- 0
COLOR TEMP. --------- STANDARD
COLOR MATRIX ------- OFF
2. Project an image on the screen.
Red
3. Input the XGA signal (Red 50% alternate line horizontal pattern, No.22).
4. Input the adjustment command [
00~22
1□□
] in the Hyper Terminal window to minimize
flicker in the red image.
Input the hexadecimal digit from [00] to [FF] in the
□□
to minimize the flicker. The value [
A0
]
is written in the
□□
of the Main PWB Ass’y (before adjustment) in the service parts stock.
(*4)
5. Input the write command [
00~
1
8
1
0
□□
] in the Hyper Terminal window to write the changed
value to the EEPROM.
Enter the value input in the
□□
in item 4. (*4)
Green
6. Input the XGA signal (Green 50% alternate line horizontal pattern, No. 23).
7. Input the adjustment command [
00~222
□□
] in the Hyper Terminal window to minimize
flicker in the green image.
Input the hexadecimal digit from [00] to [FF] in the
□□
to minimize the flicker. The value [
A0
]
is written in the
□□
of the Main PWB Ass’y (before adjustment) in the service parts stock.
(*4)
8. Input the write command [
00~
1
8
11□□
] in the Hyper Terminal window to write the changed
value to the EEPROM.
Enter the value input in the
□□
in item 7. (*4)
Blue
9. Input the XGA signal (Blue 50% alternate line horizontal pattern, No. 24).
10. Input the adjustment command [
00~223
□□
] in the Hyper Terminal window to minimize
flicker in the blue image.
Input the hexadecimal digit from [00] to [FF] in the
□□
to minimize the flicker. The value [
A0
]
is written in the
□□
of the Main PWB Ass’y (before adjustment) in the service parts stock.
(*4)
11. Input the write command [
00~
1
8
1
2
□□
] in the Hyper Terminal window to write the changed
value to the EEPROM.
Enter the value input in the
□□
in item 10. (*4)
*4 If the command was correctly sent, it will be returned as sent. Also, the current value can
be checked by sending with only [
00~22
1
], [
00~222
], [
00~223
], [
00~
1
8
1
0
], [
00~
1
8
11
] or
[
00~
1
8
1
2
] (with nothing entered in
□□
).
Alternate line horizontal pattern
Summary of Contents for LX-D1010G - Lcd Projector
Page 32: ...LX D1010G 4 10 PA012 Memo ...
Page 36: ...LX D1010G 6 2 PA012 Memo ...
Page 67: ... PA012 15 1 LX D1010G 15 BLOCK DIAGRAMS ...
Page 68: ... PA012 15 2 LX D1010G ...
Page 69: ...LX D1010G PA012 15 3 ...
Page 70: ...LX D1010G PA012 16 1 ...
Page 77: ...LX D1010G PA012 Parts 7 Memo ...
Page 81: ...しろページ ...
