Panasonic CF-08TX1A1M Service Manual

Also see for CF-08TX1A1M: Operating instructions

Contents

Panasonic CF-08TX1A1M Service Manual Manual pdf 16 page image

5.2. TroubleshootingPlease take note of the following two points with regard to troubleshooting:1. Know-how of diagnosis upon occurrence of heavy troubles, e.g. ‘Set cannot be turned ON’, ‘Set fails to start’, ‘No display onscreen’, etc.2. Explanation of each trouble, mainly symptom of trouble in operation.Flow ChartNGNOYESNGNOYESNOYESNGOKOKNGSTARTSTARTPay attention to the following points when in pursuit of the cause of a troubleshooting.1. Peripheral apparatus connected with the set should all be removed before operation check.2. Make sure that cables, boards, etc. are not coming off, and recheck the contact condition.Set cannot be supplied with current.Power lamp fails to light up.Power unitOutput voltage Replace power unit.Make sure of contact of Touch screen connector in use.Replace Touch screen or main board..Reinstall firmware/software.Replace main board.Power lampcheckCheck contact condition of power input terminal. Replace if defective.Check SW cable continuity. Replace if defective.Check SW board connection and contact. Replace if defective.Inverter Replace inverter board. (Check if fuse is broken).Check inverter cable continuity. Replace if defectiveReplace LCD back light.operating check Replace main boardResult ofSelt Test ProgramReplaceSTARTENDDark display on screen.Screen fails to display.Failure in startingLines appearing on screen.Starts but operates unstably.Heavy trouble e.g.,‘Set cannot be turnedON’, ‘Set fails to start’,‘No display onscreen’, etc.Each kind oftrouble inoperation.LCD backlight lightingBoard input/outputvoltage(Check fuse at power source).OKPart of block displayedProperly on screen. LCD Unit for trial.Replace LVDS board and cable.OK Replacemain boardfor trial.Replace main board.OKTouch screen cannot be input.Replace main board.5-2