Sanyo LCD-22XR7SN Service Manual

Contents

3Alignment instructions1. Test equipmentPM5518 (video signal generator)VG-849 (VGA and HDMI signal generator)CA210 (color analyzer)2 Alignment flow-chartThe alignment flow-chart is shown as fig-1Fig-1 adjustment flow-chart3 Unit adjustmentsConnect all the boards according to wiring diagram, connect with power and observe the display.Method for entering factory menu: press “INPUT”, “2”, “5”, ”8” and “0” in turn to enter factorymenu; press “CH+” and “CH-” to select adjustment items and press “VOL+” and “VOL-” to adjustvalue items, press “MENU” repeatedly to exit.Method for software upgrading: When software upgrading please enter factory menu first, enterISP item of OPTION, set ISP to 1 and you can begin to upgrade. After upgrade finished, it needs toset ISP back to 0. If the picture can’t display when upgrading, it needs to solder JB1 on the mainboard. Please unsolder JB1 again after upgrading.3.1 InitializationEnter factory menu, select “OPTION”, “EEPROM” and “HOTEL OPTION” sub-menu, adjustment ofitems to see table1.Table1 sub-menu adjustmentItems Preset IntroduceHOTEL 0 ON: HOTEL OPTION of factory menu is optionalOFF: HOTEL OPTION of factory menu is not optionalCheck DDC, HDCP KEY, FLASH and POWER control ICFactory initialization setupIF channel AFT voltage of TV and AGC voltage adjustmentWhite balance adjustmentADC correction of VGA and YPbPrPerformance checkPreset ex-factoryN o actory menAligA nment nstructi nce