Sanyo LNS-W20 User manual

Projector Lens Replacement Procedure
Model Number
1AA6P1P5754-- (IFRG)
LNS-W20/LNS-W21/LNS-S20/LNS-T20/LNS-T21
Lens installation and replacement should be made by the qualified
service personnel.
Do not give a shock or excessive load to the projector or the lens
components as the projector and lens components contain precision
parts.
When transporting the projector with the lens, remove the lens before
transporting the projector. The lens and the lens shift mechanism may
be damaged by improper handling during transportation.
Before removing or installing the lens, be sure to turn off the projector,
wait until the cooling fans stop, and turn off the main power switch.
Do not touch the lens surface when removing or installing the lens.
Keep fingerprints, dust or oil off the lens surface. Do not scratch the
lens surface.
Work on a level surface with a soft cloth under it to avoid scratching.
If you remove and store the lens, attach the lens hole cover to the
projector to keep off dust and dirt.
When using the LNS-W21 lens unit, set the lens shift adjustment to the
center of the screen. Otherwise, the edges of the screen may become
darker or shadows may appear.
Notes on Lens Replacement
Printed in Japan
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Installing or Removing the Optional Lens
Keep the lens hole cover in safe for later use.
Use the lens hole cover to the projector during
transportation.
Remove the lens hole cover
1
2
Fig-2
Mount the lens
1. Remove the protective caps (front and back) on
the lens.
2. Insert the lens into the lens bracket so that the red
marks on the lens and lens bracket can match.
3. Slowly turn the lens clockwise until it clicks. Make
sure that the lens is fully inserted to the projector.
3Remove the lens LENS RELEASE BUTTON
Fig-3
1. Press and hold the LENS button on the projector
or the LENS SHIFT button on the remote control
for more than 5 seconds to shift the lens to the
center position.
2. Turn off the projector, wait until the cooling fans
stop, and then unplug the AC power cord.
3. Push the lens release button and turn the lens
counter-clockwise and then take it out.
NOTE: Be careful not to drop the lens.
LENS HOLE COVER
Red mark
Fig-1
Turn the projector on and check lens shift, zoom and
focus is operating properly.
NOTE; LNS-W21 cannot adjust the zoom.
Confirm of the lens operation

プロジェクターにレンズを取り付けてスクリーンに投映した時、周辺フォーカスが局部的にずれてい
る場合があります。このような場合、プロジェクター本体とレンズマウンターの間に付属のスペーサー
を挿入しフォーカスを調整してください。
フォーカスの補正のしかた
スペーサーを挿入した位置の対角にあたる部分のベストフォーカスの距離がプロジェクターに近い方
向（手前方向）に補正されます。挿入するスペーサーの厚みにより補正距離が決まります。補正距離
の目安はスペーサーの厚さ 0.1 mm につき約 120 mm です。スペーサーは 3 種類各 4 枚同梱されてい
ます。
1AA6P3P1446-- (IFRG)
Printed in Japan
Focus Correction
When the lens is attached to the projector and images are being projected onto the screen, the
peripheral focus may be out of focus in some localized areas. If this happens, insert the one of
three kinds of spacers, in between the lens mounter and the projector unit to adjust the focus.
It is corrected in the direction where the position of the best focus in the part that corresponds
to the opposite angle at the position in which the spacer was inserted is near to the projector.
The corrected distance is determined by the thickness of the used spacers. As guide, the
distance is adjusted by approximately 120 mm for each 0.1-mm thickness of the spacers. It is
supplied for each 4 pieces with three kinds of spacers.
Spacer "1"
Color; Clear
Thickness; 0.1 mm
60-inch projection
Screen
A
B
C
D
B'
A'
D'
C'
Distance
Lens
Lens mounter
Spacer "2"
Color; Black
Thickness; 0.2 mm
Spacer "3"
Color; Cream
Thickness; 0.3 mm
Correction distance
120 mm/for 60-inch
projection
Correction distance
240 mm/for 60-inch
projection
Correction distance
360 mm/for 60-inch
projection
Spacer
スペーサー "1"
色（クリア）
厚み ; 0.1 mm
スペーサー "2"
色（黒）
厚み ; 0.2 mm
スペーサー "3"
色（クリーム）
厚み ; 0.3 mm
60インチ投映時の
補正距離 ; 120 mm
60インチ投映時の
補正距離 ; 240 mm
60インチ投映時の
補正距離 ; 360 mm
A
B
C
D
B'
A'
D'
C'
60インチ投映
スクリーン
距離
レンズ レンズマウンター
スペーサー
Screws
ネジ
NOTE; Focus correction should be performed by the qualified service personnel.
注意；このレンズのフォーカス補正作業は、サービス技術員が行ってください。
レンズマウンター取り付け時に、配線を挟み込まな
いよう注意してください。
注意；
At the time of the lens mounter installation,
please be careful not to put wiring between the
lens mounter and the projector unit.
NOTE;