Magnavox 19MDTR20 Service Manual

Also see for 19MDTR17: Features

Contents

1-2-1 TD857PFSPREPARATION FOR SERVICINGHow to Enter the Service ModeCaution: 11. Optical sensors system are used for Tape Start andEnd Sensor on this equipment. Read this pagecarefully and prepare as described on this pagebefore starting to service; otherwise, the unit mayoperate unexpectedly.Preparing: 11. Cover Q202 (START SENSOR) and Q201 (ENDSENSOR) with Insulation Tape or enter the servicemode to activate Sensor Inhibition automatically.Note: Avoid playing, rewinding or fast forwarding thetape to its beginning or end, because both Tape EndSensors are not active.How to Enter the Service Mode1. Turn power on.2. Use service remote control unit and press DISCMENU key. (See page 1-4-1)3. When entering the service mode, one of the num-ber (1, 2 or 4) will display at corners of the screen.4. During the service mode, electrical adjustmentmode can be selected by remote control key. (Ser-vice remote control unit).Details are as follows.Caution: 21. The deck mechanism assembly is mounted on theMain CBA directly, and SW1211 (REC-SAFETYSW) is mounted on the Main CBA. When deckmechanism assembly is removed from the MainCBA due to servicing, this switch can not be oper-ated automatically.Preparing: 21. To eject the tape, press the STOP/EJECT buttonon the unit (or Remote Control).2. When you want to record during the Service mode,press the Rec button while depressing SW1211(REC-SAFETY SW) on the Main CBA.Key Adjustment ModeMENUPicture adjustment mode: Press theMENU button to change from BRT(Bright), *CNT (Contrast),*COL(Color), *TNT(Tint) and *V-T.Press CH UP/DOWN key to adjust Ini-tial Value. *Marked items are not nec-essary to adjust normally.0 No need to use.1 No need to use.2 H adjustment mode: See adjustmentinstructions page 1-4-2.3 No need to use.4Auto record mode: Perform recording(15 Sec.)-->Stop-->Rewind (Zeroreturn) automatically.5Head switching point adjustmentmode: See adjustment instructionspage 1-4-5.6 No need to use.7Purity check mode: Shows Red,Green, Blue or White cyclically on thescreen each time the “7” key ispressed.Key Adjustment Mode8 H. Shift adjustment mode: See adjust-ment instructions page 1-4-3.9V.size/V. shift adjustment: See adjust-ment instructions pages 1-4-2 and1-4-3.VOL p Cut-off Adjustment 1-4-3.(START SENSOR)(END SENSOR)(REC-SAFETY SW) MAIN CBAQ201SW1211Q202