Optical Adjustments - Panasonic PT-EX600U Service Manual

Optical Adjustments

WARNING : USE UV RADIATION EYE AND SKIN PRO-
CAUTION: To prevent suffer of UV radiation, those
adjustment must be completed within 25
minutes.
Before adjustment
1
Each adjustment requires hex wrenches and slot screw-
drivers.
2
Move the projection lens position to center by pressing
the LENS button for more than 5 seconds.
3
When adjusting optical components adjustments, using
Standard Zoom Lens is recommended.
4
When adjusting the optical axis adjustment and contrast
adjustment, use the internal test pattern. To select the
internal test pattern, see the item below.
* Do not disconnect the sockets on the main board other-
wise the power protection function will operate to shut-
down the projector.
5
These adjustments should be taken in the darkest room
to adjust precisely.
CAUTION: Do not short main board with the chassis.
Protect main board with necessary isolation
materials from shorting.
To select the internal test pattern
1
Press the MENU button.
2
Select the "Test pattern" from the "Setting" menu.
3
Press the ENTER button. The test pattern menu appears on the screen.
4
Select a pattern name and press ENTER button.
To cancel the test pattern, press any of the buttons.
Test pattern
Color
Graduation 1
Graduation 2
Graduation 3
Graduation 4
All white
All black
Cross
CAUTION:
When adjusting the optical components, do not insert any materials into the optical block for blocking the light. Or the
optical block may be damaged by overheating or scratching the parts.
TECTION DURING SERVICING
Condenser lens
adjustment
-42-
Mirror (B) adjustment
Relay lens (R)
adjustment