Sanyo LNS T31A User Manual

LCD PROJECTOR LENS  
MODEL LNS-T31A/W31A/T32  
LENS REPLACEMENT PROCEDURE  
NOTE; Lens installation is different in cabinet design and lens attachment method  
(Type A, B and C). Before installation the lens, check cabinet design and  
proper installation should be made.  
NOTES ON LENS REPLACEMENT  
Lens replacement should be performed by the qualified service personnel.  
It should be followed by this procedure precisely.  
Before attempt to replace the lens, confirm the model number (both the LCD  
projector and the lens) and use the proper lens.  
The lens cover is on the lens for protection. Be sure to remove the lens cover  
before installation.  
When installing or removing the lens, be careful not to stain, scratch or  
damage the lens.  
If you have any questions, contact the dealers.  
PARTS LIST  
Following parts are contained in the packing.  
LENS  
1 piece  
LIGHT-BLOCK SHEET BASE  
DRIVER (3 mm, Green)  
DRIVER (4 mm, Yellow)  
LIGHT-BLOCK SHEET For LNS-T31A  
1 piece (Part No. 610 310 8001)  
1 piece (Part No. 610 287 7328)  
1 piece (Part No. 610 275 6029)  
1 piece Type PB1 (Part No. 610 310 7950)  
For LNS-W31A 1 piece Type PC1 (Part No. 610 310 7967)  
For LNS-T32 1 piece Type PF1 (Part No. 610 310 7974)  
Following checks and confirmations should be taken for safety.  
Check the following things by the time of the cabinet assembly after the lens  
replacement.  
1. Check the lens is securely fixed.  
2. Check the proper wiring and the wires are fixed properly.  
3. Check each connector is connected properly.  
4. Check no wiring is tangled on the gear of lens motor or the other mechanical parts.  
5. Check no parts is missing, or no mounting part is loose.  
1AA6P1P3188A- (ICYDA-A)  
3
REMOVE THE LENS (See Figure-5 and 6)  
SCREW "C"  
(Part No. 412 062 3705)  
LENS  
LEAD  
MOTOR HOLDER  
1.  
Remove the connector "K16J" of the circuit board.  
Remove the lens motor lead from lead holder.  
2. Remove screws-C (4 screws) which fastens the  
lens and remove the lens. Use the driver (3 mm,  
Green) included with the lens to remove the  
screws.  
LENS MOTOR LEAD  
CONNECTOR "K16J"  
Be careful not to drop the lens when removing the  
screws.  
After using, save the driver for latter use.  
Fig-5  
4
MOUNT THE LENS (See Figure-5 and 6)  
DRIVER  
IN THE LENS  
1.  
Remove protective caps (front and back) on the  
lens.  
Mount the lens on lens mounting bracket with 4  
screws. (locate motor on left side).  
Use the driver (4 mm, Yellow) included with the  
lens to fasten the screws.  
2.  
LENS MOUNTING  
BRACKET  
After using, save the driver for latter use.  
Fig-6  
Connect the lens motor lead to the connector  
"K16J" of the circuit board.  
3.  
Connect the lens motor lead to the lead holder.  
4.  
MOUNT THE LIGHT-BLOCK SHEET BASE  
(See Figure-7)  
5
LIGHT-BLOCK  
SHEET BASE  
Mount the light-block sheet base to the projector.  
1.  
6 MOUNT THE LIGHT-BLOCK SHEET AND  
LENS COVER (See Figure-8)  
Fig-7  
LIGHT-BLOCK  
SHEET  
Mount the light-block sheet to the light-block sheet  
base as shown in the Figure-8. (In the same  
position as the removed sheet has been placed).  
Use the sheet included with the lens.  
1.  
2. Make sure the part no. and mark (TOP and BACK)  
on Light-Block Sheet and set them properly.  
LENS COVER  
Mount the lens cover with the screws.  
Fig-8  
3.  
-3-  
LENS REPLACEMENT PROCEDURE (FOR "B" TYPE)  
Perform the steps  
to  
for lens replacement.  
6
1
SCREW "A"  
First set the lens at the fully lower position with  
lens shift adjustment.  
FRONT CABINET  
REMOVE THE LENS COVER AND  
1
FRONT CABINET  
1. Turn the lens cover to counter-clockwise and  
pull it toward front and remove the Lens  
Cover.  
Fig-1-1  
LENS COVER  
Remove 2 Screws-A.  
2.  
3.  
Remove the front cabinet  
SCREW "A"  
See Figure-1-1 and 2.  
FRONT CABINET  
1. Remove 2 Screws-A.  
Remove the front cabinet  
2.  
See Figure-1-2 and 2.  
Fig-1-2  
LENS COVER  
SCREW "A"  
1. Pull Lens Cover toward front and remove it.  
2. Remove 2 Screws-A.  
Remove the front cabinet  
3.  
See Figure-1-3 and 2.  
Fig-1-3  
FRONT CABINET  
LIGHT-BLOCK  
SHEET BASE  
REMOVE THE LIGHT-BLOCK SHEET BASE  
AND LIGHT-BLOCK SHEET (See Figure-2)  
2
LIGHT-BLOCK  
SHEET  
1.  
Slide the light-block sheet base upward  
and remove it.  
LENS COVER  
2. Remove the light-block sheet from lens.  
FRONT  
CABINET  
Fig-2  
-4-  
3
REMOVE THE LENS (See Figure-3 and 4)  
SCREW "B"  
1. Remove the lens motor connector from terminal.  
2.  
Loosen the screws-B (2 screws) which fastens  
the lens. {Use the driver (4 mm, Yellow) included  
with the lens to loosen the screws.}  
3. Slide the lens lock latches to "UNLOCK" position  
and remove the lens.  
LENS LOCK  
LATCHES  
Be careful not to drop the lens when removing the  
screws. After using, save the driver for latter use.  
Fig-3  
CONNECTOR  
TERMINAL  
LENS LOCK LATCHES  
LOCK  
POSITION  
UNLOCK  
POSITION  
Fig-4  
4
MOUNT THE LENS (See Figure-5)  
1.  
Remove protective caps (front and back) on the  
lens.  
LENS MOUNTING  
BRACKET  
Mount the lens on lens mounting bracket with  
Upper 2 screws. (locate motor on left side).  
Use the driver (4 mm, Yellow) included with the  
lens to fasten the screws.  
2.  
3.  
4.  
DRIVER  
IN THE LENS  
Remove the lower 2 screws on the Lens. (Lower 2  
screws are not used.)  
LOWER SCREWS  
Slide the lens lock latches to "LOCK" position and  
lock the lens. (See Figure-4)  
Fig-5  
Connect the lens motor connector to terminal.  
(See Figure-3)  
-5-  
MOUNT THE LIGHT-BLOCK SHEET AND  
LIGHT-BLOCK SHEET BASE (See Figure-6)  
5
LIGHT-BLOCK  
SHEET BASE  
Mount the light-block sheet on the lens as shown  
in the Figure-6. (In the same position as the  
removed sheet has been placed). Use the sheet  
included with the lens.  
1.  
LIGHT-BLOCK  
SHEET  
2. Make sure the part no. and mark (TOP and BACK)  
on Light-Block Sheet and set them properly.  
3. Mount the light-block sheet base included with the  
lens.  
U P  
FRONT  
CABINET  
Fig-6  
LENS COVER  
MOUNT THE FRONT CABINET AND LENS  
COVER (See Figure-6 and 7)  
6
1. Mount the front cabinet with 2 screws.  
Mount the lens cover.  
2.  
For the cabinet Fig. 1-1, position the marked UP of  
Lens Cover on top and push in to the front cabinet  
and turn the Lens Cover fully clockwise until it is  
properly locked.  
For the cabinet Fig. 1-3, push the Lens Cover onto  
the cabinet  
Fig-7  
-6-  
LENS REPLACEMENT PROCEDURE (FOR "C" TYPE )  
Perform the steps  
to  
for lens replacement.  
1
6
SCREW "A"  
First set the lens at the fully lower position with lens  
shift adjustment.  
FRONT CABINET  
REMOVE THE LENS COVER AND  
FRONT CABINET  
1
1.  
Turn the lens cover to counter-clockwise and pull it  
toward front and remove the Lens Cover.  
2. Remove 2 Screws-A.  
Remove the front cabinet  
3.  
LENS COVER  
LIGHT-BLOCK  
SHEET BASE  
REMOVE THE LIGHT-BLOCK SHEET BASE  
AND LIGHT-BLOCK SHEET  
2
LIGHT-BLOCK  
SHEET  
Slide the light-block sheet base upward and  
remove it.  
Remove the light-block sheet from lens.  
1.  
2.  
LENS COVER  
FRONT  
CABINET  
LENS LOCK  
LEVER  
Pull the Lens  
Lock Lever  
upward  
REMOVE THE LENS  
3
1.  
Grasp the Lens Lock Lever and turn it fully  
upward. Remove the Lens into the projector.  
2. Disconnect the lens motor lead connector to the  
socket on the lens attachment.  
Remove 4 Screws and remove lens attachment.  
3.  
LENS  
ATTACHMENT  
SCREW  
SOCKET  
CONNECTOR  
LENS MOTOR  
LEAD  
- 7 -  
MOUNT THE LENS  
4
1.  
Remove protective caps (front and back) on the optional lens.  
2. Mount the lens on the lens attachment with 4 Screws.  
Connect the lens motor lead connector to the socket on the lens attachment. (Motor Driven  
Lens only.)  
3.  
Grasp the Lens Lock Lever and turn it fully upward. Install the Lens into the projector. Turn  
the Lens Lock Lever fully downward until lever is Locked (clicked position) properly.  
When installing the Motor Driven Lens, be sure to mount Lens Motor on left-side.  
After installing the lens, make sure the Lens is not loose and properly installed.  
4.  
LENS LOCK LEVER  
LENS  
ATTACHMENT  
B
SPACER  
A
C
D
A~D  
Insertion position  
of the focus  
DRIVER  
IN THE LENS  
LENS  
ATTACHMENT  
SCREW  
correction spacers.  
Refer to following.  
Part No. (610 275 6029)  
SOCKET  
CONNECTOR  
LENS MOTOR  
LEAD  
Correcting the focus  
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 spacer  
in between the lens attachment and the lens to  
correct the focus.  
Push the Lens  
LENS LOCK LEVER  
Lock Lever fully  
downward until it is  
locked (clicked).  
Inserting the spacers corrects the distance for best  
diagonal focus at the screen.  
The corrected distance is determined by the  
thickness of the spacers that are used. As a guide,  
the distance is adjusted by approximately 30 mm  
for each 0.1-mm thickness of the spacers.  
There are three types of spacers provided, and  
there are four of each spacer type. Use these  
spacers to correct the distance as required.  
Screen  
D
B
Spacer "1"  
Color; Clear  
Thickness; 0.1 mm  
Correction distance  
30 mm/for 40-inch  
projection  
Screen  
40-inch projection  
A
C
Spacer "2"  
Color; Black  
Thickness; 0.2 mm  
Correction distance  
55 mm/for 40-inch  
projection  
Insert spacers in  
the location A~D  
(above figure)  
corresponding to  
the screen location  
A~D.  
Distance  
Correction distance  
80 mm/for 40-inch  
projection  
Spacer "1"  
Color; Cream  
Thickness; 0.3 mm  
- 8 -  
MOUNT THE LIGHT-BLOCK SHEET AND  
LIGHT-BLOCK SHEET BASE  
LIGHT-BLOCK  
SHEET BASE  
5
Mount the light-block sheet on the lens. (In the same  
position as the removed sheet has been placed). Use  
the sheet included with the lens.  
1.  
LIGHT-BLOCK  
SHEET  
Make sure the mark (TOP and BACK) on Light-Block  
Sheet and set them properly.  
Mount the light-block sheet base included with the  
lens.  
2.  
U P  
FRONT  
CABINET  
LENS COVER  
MOUNT THE FRONT CABINET AND LENS  
COVER  
6
1.  
2.  
Mount the front cabinet with 2 screws.  
Mount the lens cover.  
Position the marked UP of Lens Cover on top and  
push in to the front cabinet and turn the Lens Cover  
fully clockwise until it is properly locked.  
- 9 -  

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