Circuit Boards Location | Sony LX40, LX70S, RMT-V293A, RMT-V294A, LX50

2-7. CIRCUIT BOARDS LOCATION

	MA-405	)
	VIDEO, AUDIO,
	SERVO/SYSTEM CONTROL,
(POWER, EJECT SWITCH)	(TUNER, POWER SUPPLY

FJ-32 (LINE 2 IN)

DI-80 (DIAL TIMER)

22-5E-

Image 28

Sony LX40, LX70S, RMT-V293A, RMT-V294A, LX60S, LX50 service manual Circuit Boards Location

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 Using the Auto Clock Set feature Setting the clockSelecting a language Using Manual Clock Set If the clock does not activate Presetting all receivable channels automatically Presetting channelsPresetting/disabling channels manually 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 Search forward while Showing the tape contents Fast-forward To cancel skip-searchPress H Play or x Stop 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 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/REC Frame 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 Block See page 4-5 for printed wiring board MA-405 BOARD4/7 MA-405 Audio Process Schematic DiagramAudio Process AU Block MA-405 Tuner Schematic Diagram See page 4-5 for printed wiring boardTuner MA-405 BOARD5/7 See page 4-5 for printed wiring board MA-405 BOARD6/7 MA-405 Display Control Schematic DiagramDisplay Control Front Block 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 FJ-32 Board Line 2Line 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 Electrical Adjustments Mechanical AdjustmentsPreparation Before Adjustment Power Supply Check Input/Output Levels and Impedance Servo System Check Audio System AdjustmentVTR 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 707 708 712 706 702 701 709 704 710 705 722 703 Mechanism Deck721 711 720 713 725 724 714 719 715 717 718 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 Mylar CeramicFilm 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