Magnavox 19MDTR20 Service Manual

Also see for 19MDTR17: Features

Contents

1-4-3 TD857EA5. V. Shift AdjustmentPurpose: To obtain correct vertical position of screenimage.Symptom of Misadjustment: If V. shift is incorrect,vertical position of image on the screen may not beproperly displayed.1. Enter the Service mode. (See page 1-4-1.)Press "9" button on the service remote control unitand select V-P mode. (Press "9" button then dis-play will change to V-P and V-S).2. Input monoscope pattern.3. Press "CH o / p" buttons on the service remotecontrol unit so that the top and bottom of the mono-scope pattern are equal to each other.6. H. Shift AdjustmentPurpose: To obtain correct horizontal position andsize of screen image.Symptom of Misadjustment: Horizontal position andsize of screen image may not be properly displayed.1. Enter the Service mode. (See page 1-4-1.)Press "8" button on the service remote control unitand select H-P mode.2. Input monoscope pattern.3. Press "CH o / p" buttons on the service remotecontrol unit so that the left and right side of themonoscope pattern are equal to each other.4. Turn the power off and on again.7. Cut-off AdjustmentPurpose: To adjust the beam current of R, G, B, andscreen voltage.Symptom of Misadjustment: White color may bereddish, greenish or bluish.Notes: Screen Control FBT --- H.V. CBAFBT= Fly Back TransformerUse the service remote control unit1. Degauss the CRT and allow CRT to operate for 20minutes before starting the alignment.2. Input the Black raster signal from EXT. input.3. Enter the Service mode. (See page 1-4-1.)4. Press the "VOL p" button.(Press "VOL p" then display will change CUT OFF/DRIVE, 7Fh adjustment and DVD-KEY).5. Choose CUT OFF/DRIVE mode then press "1" but-ton. This adjustment mode is CUT OFF (R).6. Increase the screen control so that the horizontalline just appears on the CRT.7. Press the "CH o / p" button until the horizontal linebecomes white.8. Choose CUT OFF/DRIVE mode then press "2" but-ton. This adjustment mode is CUT OFF (G). Press"CH o / p" until the horizontal line becomes white.9. Choose CUT OFF/DRIVE mode then press "3" but-ton. This adjustment mode is CUT OFF (B). Press"CH o / p" until the horizontal line becomes white.10.Choose CUT OFF/DRIVE mode then press "4" but-ton.11.Input the White Raster Signal from Video In.Adj. Point InputCH o / p buttons MonoscopeM. EQ.Pattern GeneratorAdj. Point InputCH o / p buttons MonoscopeM. EQ.Pattern GeneratorAdj. Point Mode InputScreen-Control Ext. Black Raster /White RasterM. EQ. Spec.Pattern GeneratorColor AnalyzerSee ReferenceNotes belowFigurePATTERNGENERATOREXT. INPUTColor AnalyzerFig. 3