Video Block Diagram | Sony LX70S, RMT-V293A, RMT-V294A, LX60S, LX40

SLV-LX40/LX50/LX60S/LX70S

3-2. VIDEO BLOCK DIAGRAM

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Sony LX70S, RMT-V293A, RMT-V294A, LX60S, LX40, LX50 service manual Video Block Diagram

Contents

Specifications RMT-V293A/V294A Safety CHECK-OUT Disassembly Adjustments Table of ContentsService Note Block Diagrams Service Note Error Code Indication Setting up the remote commander Hookups Completing A/V hookup Hookup 1 VCR setupHookup Antenna hookup Hookup Hookup 3 VCR setup Hookup 2 VCR setupHookup Connecting a cable box with many scrambled channels Automatic clock setting Setting the clock Using the Auto Clock Set featureSelecting a language Using Manual Clock Set If the clock does not activate Presetting channels Presetting all receivable channels automaticallyPresetting/disabling channels manually Playing a tape If the picture is not clear Recording TV programs To save a recording Recording TV programs using the Dial TimerTo watch another TV program while recording Before you start Recording TV programs using the timer About the Demonstration Mode To resume normal playback Playing/searching at various speedsLocking the VCR Child Lock To lock the VCR Recording stereo programs Setting the recording duration timeChecking/changing/canceling timer settings Recording bilingual programs Searching using the Time Search function Searching for the beginning of a timer recorded programSearching using the index function How sound is recorded on a video tape To cancel skip-search Search forward while Showing the tape contents Fast-forwardPress H Play or x Stop Changing menu options Adjusting the pictureAdjusting the tracking About the Adaptive Picture Control APC function Editing with another VCR How to connect to record on this VCROperation when recording on this VCR Before you start editing General setup information Index to parts and controls Display window Rear panel 11--19E SLV-LX40/LX50/LX60S/LX70S Section Disassembly CASE, Front Panel Block Assembly Rear Panel Mechansim Deck Internal Views Top ViewBottom View Circuit Boards Location Overall Block Diagram Video Block Diagram SERVO/SYSTEM Control Block Diagram Tuner Block Diagram Audio Block Diagram Power Block Diagram TA a Xedit → Edit PB/XREC → PB/REC Frame Schematic Diagram VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, Power MA-405 REC/PB Head AMP Schematic Diagram REC/PB Head AMPSee page 4-21 for waveforms MA-405 BOARD1/7 MA-405 Y/C, Audio Processor Schematic Diagram Audio ProcessAudio Processor VA Block MA-405 SERVO/SYSTEM Control Schematic Diagram SERVO/SYSTEM Control SS Block MA-405 Audio Process Schematic Diagram See page 4-5 for printed wiring board MA-405 BOARD4/7Audio Process AU Block Tuner MA-405 Tuner Schematic DiagramSee page 4-5 for printed wiring board MA-405 BOARD5/7 MA-405 Display Control Schematic Diagram See page 4-5 for printed wiring board MA-405 BOARD6/7Display Control Front Block See page 4-5 for printed wiring board MA-405 BOARD7/7 Power SupplyMA-405 Power Supply Schematic Diagram Power Supply PS Block Drum PG REC/PBDrum FG OSD V OUT Line 2 FJ-32 BoardLine 2 Dial Timer Dial TimerDI-80 Board Signal Pin No System Control Mechanism Block Interface MA-405 Board IC160 System Control VIDEO/RP Block Interface MA-405 Board IC160 System Control Audio Block Interface MA-405 Board IC160 Pin Name Function 55-4E Mechanical Adjustments Electrical AdjustmentsPreparation Before Adjustment Power Supply Check Input/Output Levels and Impedance Audio System Adjustment Servo System CheckVTR ACE Head Adjustment SW5V Adjusting Parts Location DiagramVIDEO/AUDIO Line IN/OUT RF/HF SWP Exploded Views Front Panel and Upper Case Section Chassis Section 5455 Mechanism Deck 707 708 712 706 702 701 709 704 710 705 722 703721 711 720 713 725 724 714 719 715 717 718 Roller ASSY, Guide Spring Power TensionBrake ASSY,MAINT Spring 803 802 833 Screw + P2.6 x 6 TYPE2 NON-SLIT LX70SCL,CS Connector SwitchSWITCH, Tact Resistor MA-405 Double Layer Ceramic MylarFilm HOUSING, Connector 6P LX40/LX50 CONNECTOR, FFC/FPC 5PPIN, Connector 4P CONNECTOR, FFC/FPC 7P Short Jumper Selector FILTER, Line Fluorescent Indicator TubeTUBE, Fluorescent Indicator Short Coil Transistor 2SC1815GR-TPE2 TransistorTransistor PT380F3 Transistor 2SC2712Y-TE85L Metal Oxide SWITCH, Tact Ppause SWITCH, Rotary ModeSWITCH, Tact 0REW SWITCH, Tact ·PLAY Ref. No Description Remarks Ref. No Sony Corporation Published by Quality Assurance Dept