Manuals / Sony / TV and Video / VCR

Sony RMT-V293A, LX70S, RMT-V294A, LX60S, LX40, LX50 VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, Power

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

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SLV-LX40/LX50/LX60S/LX70S

MA-405 BOARD

MA-405 (VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, POWER) PRINTED WIRING BOARD

— Ref. No. MA-405 Board:1,000 Series —

MA-405 BOARD (SIDE B)

There are few cases that the part printed on this diagram isn’t mounted in this model.

D101 H5

D102 H9

D103 F7

D161 G8

D162 G8

D163 F13

D189 F13

D301 A11

D302 A7

D351 D9

D352 D9

D420 I5

D421 J4

D561 B4

D562 B4

D563 B4

D600 B2

D601 E2

D602 C3

D603 D3

D604 E2

D605 C5

D607 D3

D608 F2

D609 F2

D611 F2

D612 F1

D613 F1

D621 C2

D623 C1

D625 D1

D660 H3

D661 I3

D666 H3

D702 C12

IC101 I4

IC160 H10

IC161 H12

IC162 H13

IC201 D6

IC260 C10

IC301 B9

IC350 B6

IC403 J5

IC404 I7

IC570 F9

IC600 D2

IC601 G1

IC660 I1

Q101 F11

Q103 F7

Q181 F3

Q201 C6

Q202 C5

Q203 E6

Q204 E7

Q301 A7

Q302 A7

Q303 A7

Q350 C8

Q351 D8

Q380 C7

Q500 H8

Q600 I1

Q601 I2

Q662 I2

Q673 I3

Q674 I2

CN101 G13 CN103 H6 CN104 I12 CN182 E3 CN260 B10 CN270 B11 CN351 D12 CN358 B6 CN402 I1 CN600 A2 CNJ562 B5

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VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, POWER

MA-405

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Image 37

Sony RMT-V293A, LX70S, RMT-V294A, LX60S, LX40, LX50 service manual VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, Power

Contents

RMT-V293A/V294A Specifications Safety CHECK-OUT Service Note Table of ContentsDisassembly Adjustments Block Diagrams Error Code Indication Service Note Hookups Setting up the remote commander Hookup Antenna hookup Hookup 1 VCR setupCompleting A/V hookup Hookup Hookup Connecting a cable box with many scrambled channels Hookup 2 VCR setupHookup 3 VCR setup Automatic clock setting Using the Auto Clock Set feature Setting the clockSelecting a language If the clock does not activate Using Manual Clock Set Presetting all receivable channels automatically Presetting channelsPresetting/disabling channels manually If the picture is not clear Playing a tape Recording TV programs To watch another TV program while recording Recording TV programs using the Dial TimerTo save a recording Before you start About the Demonstration Mode Recording TV programs using the timer Locking the VCR Child Lock Playing/searching at various speedsTo resume normal playback To lock the VCR Checking/changing/canceling timer settings Setting the recording duration timeRecording stereo programs Recording bilingual programs Searching using the index function Searching for the beginning of a timer recorded programSearching 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 tracking Adjusting the pictureChanging menu options About the Adaptive Picture Control APC function Operation when recording on this VCR How to connect to record on this VCREditing with another VCR Before you start editing Index to parts and controls General setup information Rear panel Display window 11--19E CASE, Front Panel Block Assembly SLV-LX40/LX50/LX60S/LX70S Section Disassembly 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 Xedit → Edit PB/XREC → PB/REC TA a 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 SERVO/SYSTEM Control SS Block MA-405 SERVO/SYSTEM Control Schematic Diagram See page 4-5 for printed wiring board MA-405 BOARD4/7 MA-405 Audio Process Schematic DiagramAudio Process AU Block See page 4-5 for printed wiring board MA-405 Tuner Schematic DiagramTuner 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 MA-405 Power Supply Schematic Diagram Power SupplySee page 4-5 for printed wiring board MA-405 BOARD7/7 Power Supply PS Block Drum FG REC/PBDrum PG OSD V OUT FJ-32 Board Line 2Line 2 Dial Timer Dial TimerDI-80 Board System Control Mechanism Block Interface MA-405 Board IC160 Signal Pin No System Control Audio Block Interface MA-405 Board IC160 System Control VIDEO/RP Block Interface MA-405 Board IC160 Pin Name Function 55-4E Electrical Adjustments Mechanical AdjustmentsPreparation Before Adjustment Input/Output Levels and Impedance Power Supply Check Servo System Check Audio System AdjustmentVTR ACE Head Adjustment VIDEO/AUDIO Line IN/OUT Adjusting Parts Location DiagramSW5V RF/HF SWP Front Panel and Upper Case Section Exploded Views 5455 Chassis Section 707 708 712 706 702 701 709 704 710 705 722 703 Mechanism Deck721 711 720 713 725 724 714 719 715 717 718 Brake ASSY,MAINT Spring Power TensionRoller ASSY, Guide Spring Screw + P2.6 x 6 TYPE2 NON-SLIT 803 802 833 SWITCH, Tact SwitchLX70SCL,CS Connector Resistor Double Layer MA-405 Mylar CeramicFilm PIN, Connector 4P CONNECTOR, FFC/FPC 5PHOUSING, Connector 6P LX40/LX50 CONNECTOR, FFC/FPC 7P TUBE, Fluorescent Indicator FILTER, Line Fluorescent Indicator TubeShort Jumper Selector Short Coil Transistor PT380F3 TransistorTransistor 2SC1815GR-TPE2 Transistor 2SC2712Y-TE85L Metal Oxide SWITCH, Tact 0REW SWITCH, Rotary ModeSWITCH, Tact Ppause SWITCH, Tact ·PLAY Ref. No Description Remarks Ref. No Published by Quality Assurance Dept Sony Corporation