Manuals / Sony / TV and Video / VCR

Sony LX40, LX70S, RMT-V293A, RMT-V294A, LX60S, LX50 service manual Ref. No Description Remarks Ref. No

Models: LX50 RMT-V294A LX40 LX60S RMT-V293A LX70S

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7-14

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Sony LX40, LX70S, RMT-V293A, RMT-V294A, LX60S, LX50 service manual Ref. No Description Remarks Ref. No

Contents

Specifications RMT-V293A/V294ASafety CHECK-OUT Disassembly Adjustments Table of ContentsService Note Block DiagramsService Note Error Code IndicationSetting up the remote commander HookupsCompleting A/V hookup Hookup 1 VCR setupHookup Antenna hookup HookupHookup 3 VCR setup Hookup 2 VCR setupHookup Connecting a cable box with many scrambled channels Automatic clock settingUsing the Auto Clock Set feature Setting the clockSelecting a language Using Manual Clock Set If the clock does not activatePresetting all receivable channels automatically Presetting channelsPresetting/disabling channels manually Playing a tape If the picture is not clearRecording TV programs To save a recording Recording TV programs using the Dial TimerTo watch another TV program while recording Before you startRecording TV programs using the timer About the Demonstration ModeTo resume normal playback Playing/searching at various speedsLocking the VCR Child Lock To lock the VCRRecording stereo programs Setting the recording duration timeChecking/changing/canceling timer settings Recording bilingual programsSearching 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 tapeSearch forward while Showing the tape contents Fast-forward To cancel skip-searchPress H Play or x Stop Changing menu options Adjusting the pictureAdjusting the tracking About the Adaptive Picture Control APC functionEditing with another VCR How to connect to record on this VCROperation when recording on this VCR Before you start editingGeneral setup information Index to parts and controlsDisplay window Rear panel11--19E SLV-LX40/LX50/LX60S/LX70S Section Disassembly CASE, Front Panel Block AssemblyRear Panel Mechansim Deck Top View Internal ViewsBottom 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/RECFrame Schematic Diagram VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, Power REC/PB Head AMP MA-405 REC/PB Head AMP Schematic DiagramSee page 4-21 for waveforms MA-405 BOARD1/7 Audio Process MA-405 Y/C, Audio Processor Schematic DiagramAudio Processor VA Block MA-405 SERVO/SYSTEM Control Schematic Diagram SERVO/SYSTEM Control SS BlockSee page 4-5 for printed wiring board MA-405 BOARD4/7 MA-405 Audio Process Schematic DiagramAudio Process AU Block Tuner MA-405 Tuner Schematic DiagramSee page 4-5 for printed wiring board MA-405 BOARD5/7See page 4-5 for printed wiring board MA-405 BOARD6/7 MA-405 Display Control Schematic DiagramDisplay 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 BlockDrum PG REC/PBDrum FG OSD V OUTFJ-32 Board Line 2Line 2 Dial Timer Dial TimerDI-80 Board Signal Pin No System Control Mechanism Block Interface MA-405 Board IC160System Control VIDEO/RP Block Interface MA-405 Board IC160 System Control Audio Block Interface MA-405 Board IC160Pin Name Function 55-4E Electrical Adjustments Mechanical AdjustmentsPreparation Before Adjustment Power Supply Check Input/Output Levels and ImpedanceServo System Check Audio System AdjustmentVTR ACE Head Adjustment SW5V Adjusting Parts Location DiagramVIDEO/AUDIO Line IN/OUT RF/HF SWPExploded Views Front Panel and Upper Case SectionChassis Section 5455707 708 712 706 702 701 709 704 710 705 722 703 Mechanism Deck721 711 720 713 725 724 714 719 715 717 718 Roller ASSY, Guide Spring Power TensionBrake ASSY,MAINT Spring803 802 833 Screw + P2.6 x 6 TYPE2 NON-SLITLX70SCL,CS Connector SwitchSWITCH, Tact ResistorMA-405 Double LayerMylar CeramicFilm HOUSING, Connector 6P LX40/LX50 CONNECTOR, FFC/FPC 5PPIN, Connector 4P CONNECTOR, FFC/FPC 7PShort Jumper Selector FILTER, Line Fluorescent Indicator TubeTUBE, Fluorescent Indicator Short CoilTransistor 2SC1815GR-TPE2 TransistorTransistor PT380F3 Transistor 2SC2712Y-TE85LMetal Oxide SWITCH, Tact Ppause SWITCH, Rotary ModeSWITCH, Tact 0REW SWITCH, Tact ·PLAYRef. No Description Remarks Ref. No Sony Corporation Published by Quality Assurance Dept