Magnavox 19MDTR20 Service Manual

Also see for 19MDTR17: Features

Contents

1-10-7Power Supply Block DiagramT0102BLPLINEFILTERBRIDGERECTIFIERT1601IC1601ERRORVOLTAGE DETW1601 F16014A/125VL1601 D1603 D1606DEGAUSSINGCOILCN1601DG1601PS1601HOT COLDSUB CBAMAIN CBASWITCHINGQ1601Q1604Q1605Q1683Q1606 Q1609Q1607Q1613Q1614Q1688Q1681Q1221Q1602 VR1601+B ADJQ2610,Q2611CN1CN2502CN2503CN1602CN1301P-DOWNDVD-MAIN-POWERP-ON-HQ2612Q2616Q2617Q2615SW+5VTO CRT/H.V.BLOCK DIAGRAMCN2502CN1602+33V123410111712151614139863FEEDBACK1 +B2 +B8 +26VM+12VTIMER+5VAL+5VP-ON+12VP-ON+8VP-ON+9VP-ON+5V(5)P-ON+5V(2)P-ON+5V(3)P-ON+5V(1)+5.7V REG.SW +5VSW +5VSW +5VIC2602IC3604IC3603+1.2VREG.1 24SW CTL SW CTLTO SYSTEMCONTROL/SERVOBLOCK DIAGRAM7 7DVD-MAIN-POWER17 17EV+4V18 18EV+4V1 1AL+9V1 1EV+1.2V2 2EV+1.2V6 6EV+9V5 5DVD-ON+5V4 4DVD-ON+3.3V3 3EV+3.3V9 9POWCONDVD MAIN CBA UNITEV+9VDVD-ON+5VDVD-ON+3.3VEV+1.2VEV+3.3VPWRCONTO DVD SYSTEMCONTROL / SERVOBLOCK DIAGRAM4A 125VQ1682SW +5VP-ON+5V(4)IC1682+5V REG.+5.7V-CTRL TO TV PROCESSBLOCK DIAGRAMCN1ANOTE FOR WIRE CONNECTORS:1. PREFIX SYMBOL "CN" MEANS CONNECTOR.(CAN DISCONNECT AND RECONNECT.)2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDERHOLES OF THE PCB.(WIRE IS SOLDERED DIRECTLY.)CAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F1601) is blown , check to see that all components in the power supplycircuit are not defective before you connect the AC plug to the AC power supply.Otherwise it may cause some components in the power supply circuit to fail.For continued protection against risk of fire,replace only with same type 4 A, 125V fuse.CAUTION ! :ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.4A 125VNOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.