Sanyo PLC-XF20 Service Manual

Also see for XF20 - PLC XGA LCD Projector: Owner's manual Specifications Instruction manual

Contents

-33-Input signal 50% white signalPicture condition Normal.Set service mode****15-1. White balance adjustment-1 (Full lamp mode)Input mode AV.Set data no. 930-0. Set data 10, when not "Selected."AdjustmentsSelect data no. 910-7 or 910-11. By using Volume +,- but-tons, adjust the white balance. Check the white balance isnot changing when changing the color of picture image fromMIN to MAX.****15-2. White balance adjustment-2 (Full lamp mode)Input mode Computer.Set data no. 930-0. Set data 10, when not "Selected."AdjustmentsSelect data no. 900-7 or 900-11. By using Volume +,- but-tons, adjust the white balance. Check the white balance isnot changing when changing the color of picture image fromMIN to MAX.****15-3. White balance adjustment-3 (1&4 lamp mode)Input mode AV.Set data no. 930-1 Set data 10, when not "Selected."AdjustmentsSelect data no. 913-0 or 913-1. By using Volume +,- buttons,adjust the white balance. Check the white balance is notchanging when changing the color of picture image from MINto MAX.****15-4. White balance adjustment-4 (2&3 lamp mode)Input mode AV.Set data no. 930-2. Set data 10, when not "Selected."AdjustmentsSelect data no. 913-2 or 913-3. By using Volume +,- buttons,adjust the white balance. Check the white balance is notchanging when changing the color of picture image from MINto MAX. When the white or gray picture projected is uneven in color, orafter the LCD panel is replaced, correct the unevenness of color asfollows.(The Correction data is memorized in the IC891 and IC892 of theAss'y Main. If the IC891 and IC892 are replaced from the Ass'yMain to the new one when replacing the Ass'y, color correction isunnecessary.) BEFORE OPERATION1. Set both the Ceiling and the Rear function of the SETTINGmenu on the ON-SCREEN menu to "Off."2. When replacing 2 LCD panels or more, the Correction data16. Correction of Uneven Color 115. White balance adjustmentsneeds to be initialized.Set the Data No. to "32-0" and Data value to "0009" in Servicemode by pressing VOLUME (+) button on the projector. Andthen, press VOLUME (+) button again to initialize theCorrection data. (The each value of the correction data turnsinto "32.")CAUTION : Don't press VOLUME (-) button when the DataNo. is "32-0." CONDITION FOR CORRECTIONInput mode AV or ComputerInput signal unnecessaryPicture condition Normal1. Full lamp mode:Set data no. 930-0. Set data 10, when not "Selected."Set the data no. 32-0.2. Press the Point (up) or (down) button on the projector, and thepattern for correction of uneven color is displayed as follows.3. Press the POINT UP / DOWN / LEFT / RIGHT buttons on theprojector to move the WINDOW where to correct.4. Adjust the White-Balance in the window on the screen with thefollowing control buttons.Press the SELECT button on the projector to move the arrowwhere( Red, Green or Blue ) to correctPress the VOLUME (+) (-) buttons on the projector to adjust theWhite Balance.5. Press the MENU button on the projector to turn back to theService mode.6. 1&4 lamp mode:Set data no. 930-1. Set data 10, when not "Selected."Set data no. to 34-0. Repeat steps 2 through 5 above.7. 2&3 lamp mode:Set data no. 930-2. Set data 10, when not "Selected."Set data no. to 36-0. Repeat steps 2 through 5 above.3232 <-32Correction of uneven color displayWindowCorrection range is 0 to 64--Value for the Red level--Value for the Green level--Value for the Blue level3232 <-32Correction Data