SpecificationsPOWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC178 W (AVG.)ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75ΩUHF/VHF/CATVDIGITALRECEIVING CHANNEL . . . . . . . . . . . . . . . . . 2 - 13 (VHF),14 - 69 (UHF),01, 14-94, 95-135 (CATV)1-135 (DIGITAL)REMOTE READY. . . . . . . . . 48 KEY REMOTE CONTROLSOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . 10.0 W/CHINTERMEDIATE FREQUENCYPICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHzSOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHzCOLOR SUB CARRIER . . . . . . . . . . . . . . . . . 42.17MHzCABINET DIMENSIONSWIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1012mmHEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 704mmDEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 307mmREFERENCE No. SM 780171DP42840, N7AL, PRODUCT CODE 113018210FILE NO.SERVICE MANUAL Remote Control DigitalColor Television DP42840 (U.S.A.)(CANADA)ORIGINAL VERSIONChassis No. P42840-00NOTE: Match the Chassis No. onthe unit’s back cover withthe Chassis No. in theService Manual.If the Original VersionService Manual ChassisNo. does not match theunit’s, additional ServiceLiterature is required. Youmust refer to “Notices” to theOriginal Service Manualprior to servicing the unit.Servicing should be performed by only trained and qualified service personnel.ContentsSAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5MECHANICAL DISASSEMBLY . . . . . . . . . . . . . . . . . . . . 6CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . 8COMPONENT AND TESTPOINT LOCATIONS . . . . . . 21BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 27BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 28IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 29TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . . . . 35CONTROL PORT FUNCTIONS. . . . . . . . . . . . . . . . . . . . 38MAIN SHEET BLOCK DIAGRAM & PERIPHERICALS. . 40SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 41IC, DIODE, AND TRANSISTOR PIN LAYOUTS. . . . . . . 42PC BOARD CONNECTIONS AND LOCATIONS . . . . . . 43CAPACITOR AND RESISTOR CODE CHART . . . . . . . . 44SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 45© Sanyo Manufacturing Corporation 2010