Sanyo PLC-EF31 Service Manual

Also see for PLC-EF31: Owner's manual Service manual

-64-Safety significant partsProduct safety should be considered when a component replacement is made in any area ofthe projector. Components indicated by mark ( ) in the parts list and the schematic dia-gram designate components in which safety can be of special significance. It is, therefore,particularly recommended that the replacement of the parts must be made by exactly thesame parts.-- Unit-lamp-ballast -- In case this unit is fault, replace the unitcompletely, do not replace the individualcomponent. Readjustment is unnecessary. Readjustments after parts replacement.Parts list Replace memory ICs in the follow-ing procedure.1. Remove IC871 and IC1811 from an old(damaged) assembly-main.2. Attach IC removed to new assembly-main. The data recorded is all taken overto a new assembly-main, readjustment isunnecessary. When ICs are not replaced.(1). The life data of a lamp starts from an initialvalue compulsorily. Manually, this life data cannotbe set up.(2). Readjust the following adjustment items.6. Fans driving voltage adjustments7. Video center DC adjustments8. PSIG signal adjustments9. PC pedestal level adjustments10. PC contrast adjustments-111. AV pedestal level adjustment12. AV contrast adjustments-213. Panel driving signal adjustments -AV14. Panel driving signal adjustments -PC15. Flicker reduction.16. White balance adjustments17. Unevenness color correctionNote:DO NOT REPLACE OR ORDER RESISTOR AND CAPAC-ITOR PARTS FOLLOWING THE SPECIFICATIONSSHOWN IN THE SCHEMATIC DIAGRAMS. Always checkfor the correct specifications in the parts list.Part order must contain Chassis No., Part No., and descrip-tions.-- Assembly Power -- When it is replaced to the new assembly power.* Factory adjustment of the new assembly power hascompleted. Readjustment is unnecessary. When the component parts of assembly-power arereplaced.* Readjust the following adjustment item.1. DC voltage adjustment.-- The component parts inside the optical unit --(Part no. 102, 106~111, 114, and 123~124. ) When the optical component parts inside the opti-cal unit are replaced.* Check the following adjustment items.Integrator-lens-in adjustmentIntegrator-lens-out adjustmentCondenser-lens adjustmentRelay-lens adjustmentPrism-P.B.S. adjustmentPolarizer. adjustment-- Terminal board AV -- When it is replaced to the new terminal-board-AV.* Factory adjustments of the new terminal-board-AVhave completed. Readjustments are unnecessary. When the component parts of terminal-board-AV arereplaced.* Readjust the following adjustment items.2. AV Video signal adjustments3. 3DNR-PLL Lock check4. AV Color and Tint adjustments-- Terminal board component -- When it is replaced to the new terminal-board-compo-nent.* Factory adjustment of the new terminal-board-compo-nent has completed. Readjustment is unnecessary. When the component parts of terminal-board-compo-nent are replaced.* Readjust the following adjustment item.5. Component Video signal adjustments-- Integrator-lens-in -- When the integrator-lens-in is replaced.* Readjust the following adjustment items.Integrator-lens-in adjustment-- Integrator-lens-out and prism-PBS -- When the integrator-lens-out and prism-PBSare replaced.* Readjust the following adjustment item.Integrator-lens-out adjustmentPrism-P.B.S. adjustment-- Condenser-lens -- When the Condenser-lens is replaced.* Readjust the following adjustment item.Condenser-lens adjustment-- Relay-lens -- When the relay-lens is replaced.* Readjust the following adjustment item.Relay-lens adjustment-- Polarization-glasses-- When the Polarization-glasses are replaced.* Readjust the following adjustment item.Polarizer adjustment-- LCD panel --- When the LCD-panel is replaced.* Readjust the following adjustment items.Focus of LCD Panel adjustmentConvergence of LCD Panel adjustment15. Flicker reduction16. White balance adjustments17. Unevenness color correction-- Unit-PFC. -- In case this unit is fault, replace the unitcompletely, do not replace the individualcomponent. Readjustment is unnecessary.Assembly-main.-- Assembly Sub power -- When it is replaced to the new assembly-sub-power orwhen component parts are replaced. * Readjust the fol-lowing adjustment item.6. Fans driving voltage adjustmentsE