Panasonic DVD-LS80P Service Manual

Contents

11.5. Electrical adjustment (LCD)[How to enter into the LCD panel adjustment mode]Play back the specified video signal (10 steps, color bassignal).Press and hold down "Back skip" and "Pause" of the main unitat the same time while pressing "Menu" on the remote controlunit.[The DVD player is now in the FT02 mode]Press the "Forward skip button twice to enter into the FT04mode (LCD panel adjustment mode).Press the "Playback" button to play back the signal which hasbeen played back before stopping and then, press the "Pause(still) button.[How to exit to normal mode](Exit the F4 mode)1. Turn off the primary power supply (Remove the DC powersupply).Turn on the power supply. Press the "Stop" to stop the system.Press "Cancel" on the remote control unit (The Cancel key isenabled only when the system is stopped.)Whenever the LCD panel is replaced, make the followingchecks and adjustments.Press the "Enter" key and fix the settings.When the EEPROM" (IC3002) of the Main P.C.B. is replaced,call up the LCD Panel adjustment mode (FT04) and executethe AUDIO on the remove control unit and then check thecondition of the screen. Make adjustments as necessary.11.5.1. Adjusting VCO oscillationfrequencyAdjustment is required when Check pointThe synchronization of the LCDscreen is irregular after any VCO-related circuit part is replacedTP8201Adjustment procedure Adjustment UP AdjustmentDOWNUse “1” on remote control unit. DVDplayer/remotecontrol unitDVDplayer/remotecontrolDetails of adjustment Input video signalPress “ “ and ” ”buttons onremote controller, set the rightside number to “71”.-----11.5.2. Adjusting DC offset of impressedvoltageAdjustment is required when Check pointNoise such as horizontal stripesis found on the screen.TL8401Adjustment procedure Adjustment UP AdjustmentDOWNUse “3” on remote control unit. DVDplayer/remotecontrol unitDVDplayer/remotecontrolDetails of adjustment Input video signalPress “ “and” ”buttons onremote controller, set the rightside number to “AI”.10step monochrome11.5.3. Adjusting white balancered/subcontrast redAdjustment is required when Check pointRemarkable deviation in whitebalance is foundTL8602Adjustment procedure Adjustment UP AdjustmentDOWNUse “6” on remote control unit. DVDplayer/remotecontrol unitDVDplayer/remotecontrolDetails of adjustment Input video signal(White balance)Press “ “and “ “ buttons onremote controller, set the numberof center to “80”.(Sub contrast)Press “ “ and “ “ buttons onremote controller, set the rightside number to “7E”.10step monochrome11.5.4. Adjusting whitebalanceblue/subcontrast blueAdjustment is required when Check pointRemarkable deviation in whitebalance is foundTL8604Adjustment procedure Adjustment UP AdjustmentDOWNUse “7” on remote control unit. DVDplayer/remotecontrol unitDVDplayer/remotecontrolDetails of adjustment Input video signal(White balance)Press “ “and “ “ buttons onremote controller, set the numberof center to “71”.(Sub contrast)Press “ “and “ “ buttons onremote controller, set the rightside number to “84”.10step monochrome29DVD-LS80P / DVD-LS80PC / DVD-LS82P / DVD-LS82PC / DVD-LS850P