Panasonic PT-LB20NTU Service Manual

Also see for PT-LB20E: Operating instructions

Panasonic PT-LB20NTU Service Manual Manual pdf 9 page image

4 Service ModeThis mode is used to display seven kinds of test patterns [Horizontal lines, Vertical lines, Dots, Crosshatch, White cross, Blackcross and White (No pattern)] in the four colors (White, Red, Green and Blue)..Note:· On the service mode, displays above patterns by each color without test equipment such as PC or SG. Use the servicemode for simplified adjustments by your eyes and so on.4.1. Procedure to enter the service modeSelect "SERVICE MODE" on "EXT OPTION" menu and press "ENTER" button on the main unit or remote control unit.Note:· In the service mode, pressing the up-arrow " " or down-arrow " " button allows the test pattern selection and theleft-arrow " " or right-arrow " " button the color selection (White / Red / Green / Blue).4.2. Canceling the service modePress "MENU" button on the main unit or remote control unit.5 Flicker Adjustment ModeIf replacing the optical parts (Analysis / LCD / Lens block) of this projector and/or A-P.C.Board (assembly), enter the flickeradjustment mode and minimize the flicker.5.1. Procedure to enter the adjustment modeSelect "FLICKER ADJ" on "EXT OPTION" menu and press "ENTER" button on the main unit or remote control unit.Note:"DESK setting (blue)" is displayed when entering the adjustment mode.5.2. Adjustment Display and Contents· Setting value is increased and decreased with the right-arrow " " and left-arrow " " buttons." ": Decrease, " ": Increase−−−− Adjust the setting value to minimize the flicker on the screen.−−−− Execute the adjustment by 6 patterns below.· The pattern (adjustment display) is switched with the up-arrow " " and down-arrow " " buttons." ": Forward direction, " ": Reverse direction−−−− There are 6 patterns of "DESK setting (blue)", "DESK setting (red)", "DESK setting (green)", "CEILING setting (blue)","CEILING setting (red)" and "CEILING setting (green)".−−−− The setting value is saved into this projector when the pattern is switched.5.3. Canceling the flicker adjustment modePress "MENU" button on the main unit or remote control unit.Note:When "MENU" button is pressed, the setting value at that time is saved into this projector and the adjustment mode is canceled.9PT-LB20NTU / PT-LB20NTE / PT-LB20NTEA / PT-LB20U / PT-LB20E / PT-LB20EA / PT-LB20SU / PT-LB20SE / PT-LB20SEA / PT-LB20VU / PT-LB20VE / PT-LB20VEA