Magnavox 19MDTR20 Service Manual

Also see for 19MDTR17: Features

Contents

1-15-1 T0102PINIC PIN FUNCTION DESCRIPTIONSIC1201 (TV/VCR Micro Controller IC)“H” ≥ 4.5 V, “L” ≤ 1.0 VPinNo.IN/OUTSignalName Function1 IN LD-SW Loading Switch Input2 OUT DVD-LED DVD-LED Output3 IN P-SAFETY2Power Supply FailureDetection 24 IN ST/SAP-IN Tuner Stereo/Sap DetectorSignal Input5 IN KEY0 Key 0 Input6 IN KEY1 Key 1 Input7 IN END-SENS End-Sensor8 IN AFT AFT Input9 IN ST-SENS Start-Sensor10 IN V-ENV Video Envelope Input11 OUT VOLUME Volume Adjustment Output12 OUT SP-MUTE Speaker Mute Output13 OUT DV-SYNC Artificial V-Sync Output14 IN REMOTE Remote Signal Input15 OUT ROTA Color Phase RotaryChangeover Signal16 OUT V-H-SW Video Head Amp SwitchingPulse17 IN ENV-DET Envelope Comparator Signal18 OUT RF-SW Video Head Switching Pulse19 OUT Hi-Fi-H-SW HiFi Audio Head SwitchingPulse20 OUT D-PB-L Output in Playback21 OUT REC-LED Recording LED ControlSignal22 IN NORMAL-H Audio Mode Input Signal23 OUT ACL-CONT ACL Control Signal24 - NU Not Used25 - DVD-REMOTERemote Control Signal toDVD26 OUT TV/VCR-LEDTV/VCR Mode LED ControlSignal27 - NU Not Used28 - NU Not Used29 OUT D-REC-H Delayed Record Signal30 - NU Not Used31 OUT P-ON-H Power On Signal at High32 - NU Not Used33 IN REC-SAFETYRecord Protection TabDetection34 IN RESET System Reset Signal (Reset= “L”)35 IN XC-IN Sub Clock 32 kHz36 OUT XC-OUT Sub Clock 32 kHz37 - TIMER+5V Vcc38 IN X-IN Main Clock Input39 OUT X-OUT Main Clock Output40 - GND GND41 OUT SPOT-KILL Counter-measure for Spot42 IN DVD-MAIN-POWERPower On Signal to High forDVD43 IN CLKSEL Clock Select (GND)44 OUT D-REC-H Delayed Record Signal45 IN I2C-OPEN White Balance Adjust ModeJudgment46 - GND GND47 INDVD-AUDIO-MUTEDVD Audio Mute Signal48 OUT DVD-H DVD at High49 - GND OSD GND50 IN CS DVD Interface Chip Select51 IN SCLK DVD InterfaceCommunication Clock52 IN SDATA DVD Interface Serial Data53 - P-ON+5V OSD Vcc54 - HLF HLF55 IN V-HOLD VHOLD56 IN CV-IN Video Signal Input57 - GND GND58 IN H-SYNC H-SYNC Input59 IN V-SYNC V-SYNC Input60 OUT OSD-BLK Output for Picture Cut off61 - NU Not Used62 OUT OSD-B Blue Output63 OUT OSD-G Green Output64 OUT OSD-R Red Output65 OUT AUDIO-MUTE Audio Mute Output66 OUT C-F/R Capstan Motor FWD/REVControl Signal67 OUT D-REC-L/PLAY-H Recording/Playback Output68 OUT YCA-SDA YCA IC Control Data69 OUT YCA-CS YCA IC Control Chip Select70 OUT YCA-SCL YCA IC Control ClockPinNo.IN/OUTSignalName Function