Sony LX50, LX70S, RMT-V293A, LX60S MA-405 Audio Process Schematic Diagram, Audio Process AU Block

Page 41

SLV-LX40/LX50/LX60S/LX70S

MA-405 (AUDIO PROCESS) SCHEMATIC DIAGRAM

– Ref. No: MA-405 board; 1000 series –

• See page 4-5 for printed wiring board.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

MA-405 BOARD(4/7)

AUDIO PROCESS (AU BLOCK)

A XX MARK:NO MOUNT

NO MARK:REC/PB MODE

R:REC MODE P :PB MODE

LX60S/LX70S

14

JL331

SIF

MA-405 (6/7)

AN_GND

B

(SEE PAGE 4-17)

JS302

JL325

HS7

JL326

MPX_MODE

JL327

HS3

I2C_DATA

12

B+

JS313

D301

HS4

I2C_CLOCK

JL328

MA-405 (3/7)

15

SW_12V

L303

1SS119-25TD

HS1

AF_REC

(SEE PAGE 4-11)

B+

XX

100uH

MA-405 (7/7)

SW_5V

JL329

(SEE PAGE 4-19)

HF_GND

JL330

HS5

AF_ENV

C332

HS2

HF GND

AF_SWP

C320

C345

C326

47u

JS312

C318 C319

R310 R311

C328

C329

C330

16V

C

L302

3.3u

0.1u

4.7u

0

0

0.01u

5%

33u

10u

10u

0.015u

50V

25V

C301

XX

C317

50V

R316

}

16V

16V

C333

0.1u

C343

0.1u

33k

0.1u

0.22u

R321

3300

0.4-0.7

B+

C304

2.2

0

2.2

0-5

0-5

5.0

1.7

2.5

2.5

2.5

47u

IC301

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

25V

N.C.

AN3668FBPEBV

FSC

SDA

SCL

VCC5V

GND R

REC ADJ

R322

D

L301

XX

JS311

XX

50V

DEM/FILTER

2.2u

R323

C307

49

SIF

0

R301

C308

32

1k

0

R334

1u

SAP DEMOD

C302

50

31

XX

1.5

OFF

0.01u

PNR Rch

1.8

C334

0.66

HF_GND

5

1SS119-25TD

53 52 51

0.22u

VCC5V

NOISE

Q301

C309

INSW

ON

(L-R)/SAP

DET

2SA1162Y-TE85L

0.1u

C305

Switch

MUTE

POWER MUTE

Q302

47u

C310

1.5

25V

VCO R

5.0

10u

6

C335

E

2SC2712Y-TE85L

D302

50V

283029

R302

MUTE

R305

C311

OUT R

BPF

FM

XX

2.2u

2.2

{

ENV

B

1k

220

50V

54

+

LIMITER

27

0.66

L+R

OUT

L

H

DET

REF

SEL

VCO L

0-5

C336

55

GND

26

R303

OFF

SWP

0.1u

2.1

1k

56

25

0.66

R306

C312

MPX

OFF

RPVCC5V

C337

220

10u

6

MODE

PNR Lch

5.0

0.01u

Q303

50V

57

OUT L

PB IN1

24

ON

2SC2712Y-TE85L

12

INSW

ON

R2.1/P0.7

MUTE

C313

58

VCC12V

EE

MUTE

R/P GND

23

C338

F

10u

6

moniter

0.01u

50V

59

RFC OUT

PB IN2

22

C315

10u

2.6

R2.1/P0.7

50V

60

NA OUT

REC OUT

21

C314

C339

10u

R2.1/P0

50V

61

RFC AGC

20

0.1u

AU_PB_RF

JL310

2.5

dbx

R2.1/P0

C340

4

62

19

FSC_FOR_ADJ

NA IN

NR.

IN SEL

0.015u

AU3

AUDIO_CH1

JL311

C303

R308

2.5

C341

MA-405 (1/7)

AUDIO_R_OUT

HV3

0.1u

56k

2.5

AU2

AUDIO_REC

63

18

(SEE PAGE 4-7)

AUDIO_L_OUT

JL312

10u

AU1

AUDIO_CH2

HV4

2.5

16V

JL313

0.3

64

17

AN_GND

G

9

RF_AUDIO_OUT HT3

AN_GND

NORMAL_OUT

JL314

0.4-0.7

C342

JS304

HV1

10u

MA-405 (2/7)

JL315

16V

NORMAL_IN

HV2

R

(SEE PAGE 4-9)

JL316

VREF

INREF

GND L

INREFL

L1_AUDIO_R

HV5

L1 R

L2 R

L1 L

L2 L

JL317

R307

C306

*C316

L1-AUDIO_L

HV6

XX

0.022u

3.3u

JL318

50V

L2_AUDIO_R

HM5

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

}10%

JL319

L2_AUDIO_L

HM4

2.5

2.2

0

0

2.2

0

0

2.5

JL324

AUDIO MUTE

VS1

H

HF_GND

IC301

R312

R315

R317

R320

AFM

XX

XX

XX

XX

AUDIO PROCESS

C331

ONLY LX60S/LX70S

33u

25V

C321

C322 C323 C324

C325

C327

0.1u

10u

4.7u

10u

4.7u

1u

B

16V

50V

16V

R313* R314

50V

50V

R318 R319

}10%

47k

47k

47k

47k

1/4W 1/10W

I

SIGNAL PATH

AUDIO

SIGNAL

J

REC

PB

AUDIO PROCESS

4-13

4-14

MA-405(4/7)

Image 41

Contents RMT-V293A/V294A SpecificationsSafety CHECK-OUT Service Note Table of ContentsDisassembly Adjustments Block DiagramsError Code Indication Service NoteHookups Setting up the remote commanderHookup Antenna hookup Hookup 1 VCR setupCompleting A/V hookup HookupHookup Connecting a cable box with many scrambled channels Hookup 2 VCR setupHookup 3 VCR setup Automatic clock settingSelecting a language Setting the clockUsing the Auto Clock Set feature If the clock does not activate Using Manual Clock SetPresetting/disabling channels manually Presetting channelsPresetting all receivable channels automatically If the picture is not clear Playing a tapeRecording TV programs To watch another TV program while recording Recording TV programs using the Dial TimerTo save a recording Before you startAbout the Demonstration Mode Recording TV programs using the timerLocking the VCR Child Lock Playing/searching at various speedsTo resume normal playback To lock the VCRChecking/changing/canceling timer settings Setting the recording duration timeRecording stereo programs Recording bilingual programsSearching 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 tapePress H Play or x Stop To cancel skip-searchSearch forward while Showing the tape contents Fast-forward Adjusting the tracking Adjusting the pictureChanging menu options About the Adaptive Picture Control APC functionOperation when recording on this VCR How to connect to record on this VCREditing with another VCR Before you start editingIndex to parts and controls General setup informationRear panel Display window11--19E CASE, Front Panel Block Assembly SLV-LX40/LX50/LX60S/LX70S Section DisassemblyRear 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 Xedit → Edit PB/XREC → PB/REC TA aFrame 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 SERVO/SYSTEM Control SS Block MA-405 SERVO/SYSTEM Control Schematic DiagramAudio Process AU Block MA-405 Audio Process Schematic DiagramSee page 4-5 for printed wiring board MA-405 BOARD4/7 See page 4-5 for printed wiring board MA-405 Tuner Schematic DiagramTuner MA-405 BOARD5/7Display Control Front Block MA-405 Display Control Schematic DiagramSee page 4-5 for printed wiring board MA-405 BOARD6/7 MA-405 Power Supply Schematic Diagram Power SupplySee page 4-5 for printed wiring board MA-405 BOARD7/7 Power Supply PS BlockDrum FG REC/PBDrum PG OSD V OUTLine 2 Line 2FJ-32 Board DI-80 Board Dial TimerDial Timer System Control Mechanism Block Interface MA-405 Board IC160 Signal Pin NoSystem Control Audio Block Interface MA-405 Board IC160 System Control VIDEO/RP Block Interface MA-405 Board IC160Pin Name Function 55-4E Preparation Before Adjustment Mechanical AdjustmentsElectrical Adjustments Input/Output Levels and Impedance Power Supply CheckVTR Audio System AdjustmentServo System Check ACE Head Adjustment VIDEO/AUDIO Line IN/OUT Adjusting Parts Location DiagramSW5V RF/HF SWPFront Panel and Upper Case Section Exploded Views5455 Chassis Section721 711 720 713 725 724 714 719 715 717 718 Mechanism Deck707 708 712 706 702 701 709 704 710 705 722 703 Brake ASSY,MAINT Spring Power TensionRoller ASSY, Guide SpringScrew + P2.6 x 6 TYPE2 NON-SLIT 803 802 833SWITCH, Tact SwitchLX70SCL,CS Connector ResistorDouble Layer MA-405Film CeramicMylar PIN, Connector 4P CONNECTOR, FFC/FPC 5PHOUSING, Connector 6P LX40/LX50 CONNECTOR, FFC/FPC 7PTUBE, Fluorescent Indicator FILTER, Line Fluorescent Indicator TubeShort Jumper Selector Short CoilTransistor PT380F3 TransistorTransistor 2SC1815GR-TPE2 Transistor 2SC2712Y-TE85LMetal Oxide SWITCH, Tact 0REW SWITCH, Rotary ModeSWITCH, Tact Ppause SWITCH, Tact ·PLAYRef. No Description Remarks Ref. No Published by Quality Assurance Dept Sony Corporation