Hitachi Illumina PJ-TX10, Service Manual

Page: 5 / 64

5
PJ-TX10 (C10H)
4-2 Ghost adjustment
Signals for internal adjustment
0/255 30% 112/255
30%
Adjustment procedure
1. Use DAC-P - GHOST - R: in the FACTORY MENU
to adjust so that R color ghost is at a minimum.
(Set the adjustment value to default, and then
raise the value. When a ghost appears to the left
of a vertical line, reduce the value by 4 steps.)
2. In the same way, use DAC-P - GHOST-G: in the
FACTORY MENU to adjust so that G color ghost
is at a minimum.
3. In the same way, use DAC-P - GHOST-B: in the
FACTORY MENU to adjust so that B color ghost
is at a minimum.
4. Adjustment
4-1 Before adjusting
4-1-1 Selection of adjustment
When any parts in the table 4-1 are changed, choose
the proper adjusting items with the chart.
Fig.4-1 Shifting the lens position
Table 4-1: Relation between the replaced part and adjustment
Replaced
part
Adjustment
Ghost
(Chap.4-2)
Flicker
(Chap.4-3)
NRSH
(Chap.4-4)
White
balance
(Chap.4-5)
Color
uniformity
(Chap.4-6)
AIR
SENSOR
(Chap.4-7)
Dichroic
optics unit
LCD/LENS
prism
assembly
PWB
assembly
Main
Lamp
unit
assembly
PWB
assembly
Sensor
: means need for adjustment. : means not need for djustment.
: means recommended.
4-1-2 Setting of condition before adjustment
1. Before starting adjustment, warm up the projector
for about 10 minutes.(Blank white)
2. Set Zoom Wide to Max. And project an image
with more than 1m (40 type) in diagonal size.
3. Set the lens position to the default with horizontal
and vertical lens shift dial. As shown in Fig.4-1,
adjust the dials to match the dial’s center mark to
printed center mark on case.
4. Normalizing the video adjustment.
(Press the [MENU] button of the Remote control
transmitter. Place the cursor on the RESET item
in the Main menu and press the [ ] key. After the
RESET menu appears, press the [ ] key to EXE-
CUTE the normalization. Next choose the RESET
item in the PICTURE1 menu and perform EXE-
CUTE by the same operation described above.)
*note :The MAIN and PICTURE1 menu is not
reset with no signal.
5. Set the WHISPER in the MAIN menu to the NORMAL.
6. Set the NORMAL at GAMMA in the PICTURE1
menu.
7. Perform all adjustments from the FACTORY MENU.
Perform the following operations to display the
FACTORY MENU.
a. Press the [MENU] button on the Remote control
transmitter (the MAIN menu will appear).
b. Select the [RESET] in the MAIN menu, and
then press the [ ] button.
c. Next, press the [RESET] button one time. And
hold the [RESET] button for 3 seconds or
more (the FACTORY MENU will appear).