Magnavox 19MDTR20 Service Manual

Also see for 19MDTR17: Features

Contents

1-7-2 T0102MCEA2. Setting for CONTRAST, COLOR,TINT, V-TINT and SHARP DataValuesGeneral1. Enter the Service mode. (See page 1-7-1.)2. Press [PICTURE] button on the service remotecontrol unit. Display changes “BRT,” “CNT,” “COL,”“TNT,” “V-TNT,” and “SHP” cyclically when [PICTURE]button is pressed.CONTRAST (CNT)1. Press [PICTURE] button on the service remotecontrol unit. Then select “CONTRAST (CNT)”display.2. Press [CH. o / p] buttons on the service remotecontrol unit so that the value of “CONTRAST(CNT)” becomes 84.COLOR (COL)1. Press [PICTURE] button on the service remotecontrol unit. Then select “COLOR (COL)” display.2. Press [CH. o / p] buttons on the service remotecontrol unit so that the value of “COLOR (COL)”becomes 58.TINT (TNT)1. Press [PICTURE] button on the service remotecontrol unit. Then select “TINT (TNT)” display.2. Press [CH. o / p] buttons on the service remotecontrol unit so that the value of “TINT (TNT)”becomes 56.V-TINT (V-TNT)1. Press [PICTURE] button on the service remotecontrol unit. Then select “V-TINT (V-TNT)” display.2. Press [CH. o / p] buttons on the service remotecontrol unit so that the value of “V-TINT (V-TNT)”becomes 56.SHARP (SHP)1. Press [PICTURE] button on the service remotecontrol unit. Then select “SHARP (SHP)” display.2. Press [CH. o / p] buttons on the service remotecontrol unit so that the value of “SHARP (SHP)”becomes 46.Note: BRIGHT data value does not need to beadjusted at this moment.3. C-Trap AdjustmentPurpose: To get minimum leakage of the color signalcarrier.Symptom of Misadjustment: If C-Trap Adjustment isincorrect, stripes will appear on the screen.Note: TP1301(B-OUT) --- Main CBA1. Connect oscilloscope to TP1301.2. Input a color bar signal from RF input.Enter the Service mode. (See page 1-7-1.)3. Press [0] button on the remote control unit andselect C-TRAP mode. (Fig. 3)4. Press [CH. o / p] buttons on the remote controlunit so that the carrier leakage B-Out (3.58 MHz)value becomes minimum on the oscilloscope.Test Point Adj. Point Mode InputTP1301(B-OUT)[CH. o / p]buttons --- Color BarTape M. EQ. Spec.--- OscilloscopePattern Generator ---FigureFig. 2minimum