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

SLV-LX40/LX50/LX60S/LX70S

3-4. TUNER BLOCK DIAGRAM

LX40/LX50

3-7

3-8

Image 32

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

Contents

Specifications RMT-V293A/V294A Safety CHECK-OUT Table of Contents Service NoteDisassembly Adjustments Block Diagrams Service Note Error Code Indication Setting up the remote commander Hookups Hookup 1 VCR setup Hookup Antenna hookupCompleting A/V hookup Hookup Hookup 2 VCR setup Hookup Connecting a cable box with many scrambled channelsHookup 3 VCR setup Automatic clock setting Selecting a language Setting the clockUsing the Auto Clock Set feature Using Manual Clock Set If the clock does not activate Presetting/disabling channels manually Presetting channelsPresetting all receivable channels automatically Playing a tape If the picture is not clear Recording TV programs Recording TV programs using the Dial Timer To watch another TV program while recordingTo save a recording Before you start Recording TV programs using the timer About the Demonstration Mode Playing/searching at various speeds Locking the VCR Child LockTo resume normal playback To lock the VCR Setting the recording duration time Checking/changing/canceling timer settingsRecording stereo programs Recording bilingual programs Searching for the beginning of a timer recorded program Searching using the index functionSearching using the Time Search function How sound is recorded on a video tape Press H Play or x Stop To cancel skip-searchSearch forward while Showing the tape contents Fast-forward Adjusting the picture Adjusting the trackingChanging menu options About the Adaptive Picture Control APC function How to connect to record on this VCR Operation when recording on this VCREditing with another 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 Bottom View Internal ViewsTop 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 See page 4-21 for waveforms MA-405 BOARD1/7 MA-405 REC/PB Head AMP Schematic DiagramREC/PB Head AMP Audio Processor VA Block MA-405 Y/C, Audio Processor Schematic DiagramAudio Process MA-405 SERVO/SYSTEM Control Schematic Diagram SERVO/SYSTEM Control SS Block Audio Process AU Block MA-405 Audio Process Schematic DiagramSee page 4-5 for printed wiring board MA-405 BOARD4/7 MA-405 Tuner Schematic Diagram See page 4-5 for printed wiring boardTuner MA-405 BOARD5/7 Display Control Front Block MA-405 Display Control Schematic DiagramSee page 4-5 for printed wiring board MA-405 BOARD6/7 Power Supply MA-405 Power Supply Schematic DiagramSee page 4-5 for printed wiring board MA-405 BOARD7/7 Power Supply PS Block REC/PB Drum FGDrum PG OSD V OUT Line 2 Line 2FJ-32 Board DI-80 Board Dial TimerDial Timer 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 Preparation Before Adjustment Mechanical AdjustmentsElectrical Adjustments Power Supply Check Input/Output Levels and Impedance VTR Audio System AdjustmentServo System Check ACE Head Adjustment Adjusting Parts Location Diagram VIDEO/AUDIO Line IN/OUTSW5V RF/HF SWP Exploded Views Front Panel and Upper Case Section Chassis Section 5455 721 711 720 713 725 724 714 719 715 717 718 Mechanism Deck707 708 712 706 702 701 709 704 710 705 722 703 Spring Power Tension Brake ASSY,MAINTRoller ASSY, Guide Spring 803 802 833 Screw + P2.6 x 6 TYPE2 NON-SLIT Switch SWITCH, TactLX70SCL,CS Connector Resistor MA-405 Double Layer Film CeramicMylar CONNECTOR, FFC/FPC 5P PIN, Connector 4PHOUSING, Connector 6P LX40/LX50 CONNECTOR, FFC/FPC 7P FILTER, Line Fluorescent Indicator Tube TUBE, Fluorescent IndicatorShort Jumper Selector Short Coil Transistor Transistor PT380F3Transistor 2SC1815GR-TPE2 Transistor 2SC2712Y-TE85L Metal Oxide SWITCH, Rotary Mode SWITCH, Tact 0REWSWITCH, Tact Ppause SWITCH, Tact ·PLAY Ref. No Description Remarks Ref. No Sony Corporation Published by Quality Assurance Dept