Optical Adjustments; Before Adjustment - Sanyo PLC-XF40 Service Manual

Optical components adjustments
Focus of
LCD panel
adjustment
Relay lens
adjustment
1. Each adjustment requires ball allen wrenches set and slot screwdrivers set.
2. Set the position of motorized lens shift to the center position.
(The position where an arrow becomes red on a screen is a center position.)
3. The test pattern display exists in service mode. Use it at the time of Panel's Focus adjustment.
(a) Set the image to "service mode."
(b) Select Group no. 998-0.
(c) Press the Volume+ - buttons, and each color grid pattern is displayed.
(d) Press menu button to quit the service mode.
4. When adjusting lenses of the Relay and Condenser, follow the following procedure.
(a) Remove the connector-K8E, connector-K8N, connector-K8P and the flexible cables of the
LCD panels from the assembly Main.
(b) As shown in a figure, Set the assembly-Main to the upright position.
(c) At this time, the assembly main must not short-circuit with the chassis. Protect assembly-
Main using an insulator.
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Condenser lens
adjustment
(Never touch the electrode of flexible cables.)
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Integrator lens out
adjustment
Prism PBS
adjustment
Polarizer
adjustment
■ Adjustment optical components location

■ Before Adjustment

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Integrator lens in
adjustment
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