Panasonic PT-VX500U Service Manual

Also see for PT-VW430E: Operating instructions

Contents

Panasonic PT-VX500U Service Manual Manual pdf 30 page image

-30-Optical Parts DisassemblyBefore taking this procedure, remove Cabinet Top and MAIN Board following to the “Mechanical Disassembly”.Disassembly requires a 2.0mm hex wrench.LCD panel/prism assyFig.11. LCD panel/prism assy removal*Note on handling the LCD panel/prism assyPolarized glasses are very sensitive parts.Never touch or wipe the surface. When removing thedust on the surface, use a commercial (inert gas) airspray to remove them.IMPORTANT NOTICE on LCD panel/prism assy replacementLCD panels used for this model cannot be replaced separately. Do not disassemble the LCD panel/prism assy.These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replacedwhole of the LCD panels and prism assy at once.When replacing LCD panel/prism assy, take the optical and electrical adjustments following to the chapter "Adjust-ment".1. Remove 4 hex-screw A (M2.5x7.8) to take the LCD panel/prism assy upwardoff.AAA AThere are 2 types of LCD panel/prism assy for this model. Either L-type or R-type LCD panel/prism assy is used onthe projector. Check which type of LCD panel/prism assy is used with the figure below.When replacing the LCD panel/prism assy, you need to take "Panel type check and setting" on the electrical adjust-ment for the replaced LCD panel/prism assy.The gamma-characteristics are different between L-type and R-type LCD panel/prism assy.How to check the type of LCD panel assyCheck the printed marker on the flat cable of the G-LCD Panel.GR --> R-type LCD panel/prism assyGL --> L-Type LCD panel/prism assyLCD panel type checkGRGLL-Type LCD Panel/Prism assyR-Type LCD Panel/Prism assyG-Panel