Adjustment - Hitachi CPS210 Service Manual

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.
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 40 inches in diagonal size.
3. Normalizing the video adjustment.
(Press the [MENU] button of the Remote control
transmitter to display the MAIN menu. After
pressing the [ ] key, use the [ ] or [ ] key to
select [RESET]. Next, open MAIN menu and
press the [ ] key to display the PICTURE1
menu. Choose RESET and perfom EXECUTE by
the same operation described above.
*note :The MAIN and PICTURE1 menu is not
reset with no signal.
4-2 Ghost adjustment
Signals for internal adjustment
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Table 4-1: Relation between the replaced part and adjustment
Replaced
Ghost Flicker
part
(Chap.4-2) (Chap.4-3) (Chap.4-4)
Dichroic
optics unit
LCD/LENS
prism
assembly
PWB
assembly
Main
Lamp
unit
assembly
PWB
assembly
Sensor
: means need for adjustment.
: means recommended.
4. Set the NORMAL at GAMMA in the PICTURE1
menu.
5. 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).
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.
Adjustment
White Color AIR
NRSH
balance uniformity SENSOR
(Chap.4-5) (Chap.4-6) (Chap.4-7)
: means not need for djustment.