Adjustment - Hitachi CP-RX78 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.
Replaced
optics unit
assembly
assembly
assembly
4-1-2 Setting of condition before adjustments
1. Before starting adjustments, warm up projector
for about 10 minutes.Turn off the automatic
keystone function in OPTION Menu. If you
changed [AUTO KEYSTONE] from [TURN ON]
to [TURN OFF], set to [TURN ON] after adjustment.
2. Set Zoom Wide to Max. And project an image
with more than 1m (40 inches) in diagonal size.
3. Normalizing the video adjustments
Press the [MENU] button to display the EASY
menu. If Advanced menu comes up, move to the
Easy menu.
Select the RESET in the EASY menu and press
the [ ] or [ENTER] button to open the RESET dia-
log. Choose the EXECUTE with the [ ] button.
Note that the projector will not allow you to reset
its adjustment values with no signal input.
4. Perform all adjustments from the FACTORY
MENU. Operate as follows to display the FAC-
TORY MENU.
When you use the remote control...
a. Press the [MENU] button of the remote con-
trol to display the Easy menu. (If the Ad-
vanced menu appears, move to the Easy
menu.)
b. Select the RESET in the Easy menu, and
then press the [ ] or [ENTER] button.
c. Next, press the [RESET] button one time. And
hold the [RESET] button for 3 seconds or lon-
CP-RX78 ( C15-20EE )
Table 4-1: Relation between the replaced part and adjustment
Lamp Fan Flicker
part
(Chap.4-2) (Chap.4-3)
Dichroic
LCD
prism
PWB
Main
Lamp
unit
: means need for adjustment.
: means recommended.
Adjustment
White
Ghost PSIG
balance
(Chap.4-4) (Chap.4-5)
(Chap.4-6)
: means not need for adjustment.
ger (the FACTORY MENU will appear).
When you use the keypad of the projector...
a. Press the [ ], [ ], [ ] or [ ] button of the pro-
jector to display the Easy menu. (If the Ad-
vanced menu appears, move to the Easy
menu.)
b. Select the RESET in the Easy menu, and
then press the [ ] or [ENTER] button.
c. Next, press the [ ] button one time. And re-
press and hold the [ ] button together with
the [INPUT] button for 3 seconds or more (the
FACTORY MENU will appear).
4
Color
uniformity
(Chap.4-7)