Adjustment - Hitachi CPS370W C4S3 Service Manual

4. Adjustment

4-1 Before adjusting
1. Before starting adjustment, warm up the projector
for about 10 minutes.(Blank white)
2. Set Zoom Wide to Max. And project an image a
distance of more than 40 inches and set the
normal at "WHISPER" mode.
3. Normalizing the video adjustment.
(Press the [MENU] button of the Remote control
transmitter to display the Setup menu, and then press
the [RESET] button. And select the [DEFAULT].)
*note : The setup menu is not displayed on with no
signal.
4-2 Ghost adjustment
Signals for internal adjustment
30%
0/255
30%
bit
4-3 Flicker adjustment (V.COM adjustment)
Signals for internal adjustment
4. Perform all adjustments from the Adjustment menu.
Adjustment procedure
1. Use DAC-P - GHOST - R: in the Adjustment menu
112/255
bit
2. In the same way, use DAC-P - GHOST-G: in the
3. In the same way, use DAC-P - GHOST-B: in the
Adjustment procedure
1. Make this adjustment after completing the
2. Use DAC-P - V.COM - R: in the Adjustment menu
3. In the same way, use DAC-P - V.COM-G: in the
4. In the same way, use DAC-P - V.COM-B: in the
Perform the following operations to display the
Adjustment menu.
a. Press the [MENU] button of the Remote control
transmitter (the Setup menu will appear).
b. Next, press the [RESET] button one time. And
press the [RESET] button again for 5 seconds
or more (the Adjustment menu will appear).
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 2 steps.)
Adjustment menu to adjust so that G color ghost is
at a minimum.
Adjustment menu to adjust so that B color ghost is
at a minimum.
adjustment in 4-2 Ghost adjustment.
to adjust so that the flicker at the center of the
screen is less than the flicker at the periphery.
(When the flicker is about the same across the
whole screen, adjust so that the flicker at the
center of the screen is somewhat less than
elsewhere.)
Adjustment menu to adjust the G color flicker.
Adjustment menu to adjust the B color flicker.
CP-S370W
5