Eiki LC-XT6, Service Manual

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Optical Adjustment
Before adjustment :
1
Remove the shutter assy on the prism/LCD panel assy.
2
Select the internal test pattern signal "Cross" from the projector's menu "Menu -> Setting -> Test pattern".
3
Adjust the focus by pressing the Focus
U V
buttons on the projector or remote control unit.
4
Press the Zoom
U V
buttons on the projector or remote control unit to set the TELE and WIDE. When focus is
changed at TELE and WIDE, following adjustment is necessary.
Adjustment :
1
Loosen 4 screws-A using a hex wrench.
2
Set image size to the minimum, pressing the Zoom
V
button on the projector or remote control unit.
3
Adjust center part of grid pattern to sharp focus by pressing the Focus
U V
buttons on the projector or remote
control unit.
4
Set image size to the maximum by pressing the Zoom
U
button on the projector or remote control unit.
5
Insert a slot screwdriver into slot-B, turn it and adjust center part and four corners on the grid pattern to be sharp-
ened focus.
6
Repeat steps 2 to 5 until the focus does not shift by the ZOOM position between TELE and WIDE.
7
Tighten 4 screws-A to fix the assembly LCD panel / prism.
4. Back focus adjustment
A
A
LCD panel/prism
top view
Slot B
1
1
2
5 5
2
3
3
4
4
Minimum zoom (TELE)
Maximum zoom (WIDE)