Before Adjustment - Sanyo PLC-EF31 Service Manual

Multimedia projector
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SCREW-A
SLOT-B
SCREW-A

Before Adjustment :

1. Turn on a projector.
2. Set the image to "service mode" and project a green grid pattern on
a screen. And take the focus of green grid pattern, pressing the
Focus(L)(M) buttons on the projector or remote control unit.
3. Move the zoom position between TELE and WIDE, pressing the
Zoom(L)(M) buttons on the projector or remote control unit. If
the focus of grid-pattern is shifted by zoom position moves
between TELE and WIDE, readjustment is necessary. Adjust in
the following procedure.
Adjustment :
1. Loosen four screws-A using ball allen wrench.
I Focus of LCD Panel Adjustment
Prism / LCD Panel
assembly
-45-
2. Set image size to the maximum, pressing Zoom(L) button on the
projector or remote control unit.
3. Take the focus of green grid pattern, pressing Focus(L)(M) but-
tons on the projector or remote control unit.
4. Set image size to the minimum, pressing Zoom(M) button on the
projector or remote control unit.
5. Insert a slot screwdriver into slot-B, turn it and take the focus of
the green grid pattern.
6. Repeat steps 2 to 5. If the focus is not shifted by the ZOOM posi-
tion moves between TELE and WIDE, it will be the completion of
adjustment.
7. Tighten four screws-A to fix the assembly LCD panel / prism using
ball allen wrench.
SCREW-A
SCREW-A

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