Panasonic TX-25MK1F Service Manual

Also see for TX-25MK1F: Operating instructions Service manual

Contents

ALIGNMENT SETTINGS:(The figures below are nominal and used for representative purposes only.)1. Set the Bass to maximum position, set the Treble to minimum position, press the down button (- / v) on the customercontrols at the front of the TV and at the same time press the INDEX button on the remote control, this will place the TVinto the Service Mode.2. Press the RED / GREEN buttons to step up / down through the functions.3. Press the YELLOW / BLUE buttons to alter the function values.4. Press the STR button after each adjustment has been made to store the required values.5. To exit the Service Mode, press the "N" button.Alignment Function Settings / Special featuresHorizontal Position H-Pos061 Optimum setting.Vertical Position V-Pos005 Optimum setting.Horizontal Amplitude H-Amp055 Optimum setting.Vert. Amplitude V Amp054 Optimum setting.EW-amplitude E/W-Amp1-128 Optimum setting.EW-amplitude E/W-Amp2006 Optimum setting.Trapezium-comp Trapez-1047 Optimum setting.Trapezium-comp Trapez-2-128 Optimum setting.Vertical Linearity V-Lin006 Optimum setting.Vertical Symmetry V-Sym002 Optimum setting.DVCO DVCO-005Receive a PAL Colour Bar Pattern. ForDVCO alignment press "Blue" button, waituntil the colours are changing slowly andpress "STR".Cut-off DC Cut-off0171Ug2 TestUg2055O.K.To adjust Cutoff connect an oscilloscope tothe blue cathode. Press “STR” and adjust"cutoff" value using the "Yellow" and"Blue" buttons until the black level is160V±5V press "STR" to store the value.Remove the oscilloscope.Select Ug2 adjustment and adjust thescreen VR until the display shows "O.K."HighlightLowlightHigh 0902 0777 0864Low 0117 0132 0112 Optimum setting.Sub-Brightness Sub-Brightness255 Optimum setting.Black Level160V±5VGND8