Measurement And Adjustments; Adjustment Procedure Flowchart; Cautions For Adjustment; Setting Before Adjustment - Panasonic PT-L785U Service Manual

9 Measurement and Adjustments

9.1.

Adjustment Procedure Flowchart

9.2.

Cautions for Adjustment

· Never turn off the MAIN POWER switch until every fan
completely stops.
· To maintain and ensure safety, always use the
designated components for replacement parts.
· If removing any clamps, lead wires or connectors,
always place them back in their proper locations.
· Be careful not to damage the lead wires or components
when using a soldering iron or similar tool.
9.3.

Setting Before Adjustment

· Set up the projector to obtain the projection distance below.
· Press the ZOOM +/- buttons of the projector to obtain the
largest size of the projected image.
9.4.

Convergence Adjustment

9.4.1. Basic Adjustment Procedure
1. According to the section 8.11. "Replacement of LCD
Panel", loosen the 3 screws fixing the LCD panel
attachment and screw them temporarily just until the LCD
panel can be shifted by your fingers.
2. Reassemble the projector in the reverse order of
disassembling, but leave the upper case and the screws
fixing the A-P.C.Board block as they are removed.
3. Connect the connectors from/to the A-P.C.Board.
Note:
Use the service kit (see9.5.1) for connections below.
· Each flexible cable of LCD panels (R/G/B) -
Connectors (A1/A2/A3) on A-P.C.Board.
· Connector of Exhaust Fan1 - Connector (A18) on A-
P.C.Board.
· Connector of Exhaust Fan2 - Connector (A19) on A-
P.C.Board.
4. Covering with an insulator (cloth or the like) to prevent a
short circuit, set the A-P.C.Board on the main unit.
Note:
Handle with care not to apply external force to
connecting parts which connect the main unit and A-
P.C.Board.
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PT-L785U / PT-L785E