Sony KV-21SE43C, KV-20S90 service manual Block Diagram and Schematics, DY Assy

Page 22

5-3. BLOCK DIAGRAM AND SCHEMATICS

BLOCK DIAGRAM

KV-20S90 / 21SE43C

ANTENNA

BLOCK

REAR A/V

(INPUT)

FRONT A/V

(INPUT)

TU101

ROUT L OUT

VCC 5V

VCC 9V

VCC 30V

MUTE

VIDEO OUT

AFT OUT

DAT

CLOCK

RF AGC

J201

3PV

VIDEO

L

AUDIO

R

J202

3PV

VIDEO

L

AUDIO

R

AUDIO SWITCH

1

7

IC201

2 S1

3 V1-L

4 S2

+5V

5 V2-L

+9V

+30V

AGC

Q252

TO V1-L

TO V1-R

TO V2-L

 

7

34

37

39

 

 

 

TO V2-R

O-AGC

I-AFT

IO-SDAT IO-SCLKN

 

TO S1 10 O-VO

 

 

O-MUTE 5

AUDIO SWITCH

17

IC202

2S1

3V1-R

4S2

5V2-R

VIDEO

BUFFER

Q205

SW

 

 

B OUT

43

TV/C2

G OUT

 

 

4

CVBS1/Y1

R OUT

34SCL

Y.CHROMA.JUNGLE

35 SDA

IC301

IK IN

41CVBS2/Y2

VD-

VD+

24

23

22

21

14

13

3

13

 

5

11

AUDIO OUT

IC401

10

1

7

8

BUFFER

Q394

BUFFER

Q393

BUFFER

Q392

+B

BUFFER

Q303

 

IK-BUFFER

Q301,302

1DRIVER-

V.OUTOUT

IC541

5

 

7DRIVER+

V DRIVE

CN402

1

2

CN401 1

2

CN301

B 4

G

3

R 2

IK 1

V OUT

CN501

TP5086

V MID

TP5075

SP902

SPEAKER

(L)

J400

HEADPHONE

SP901

SPEAKER

(R)

CN1752

4 B

3 G

2 R

1 IK

V

DY(+)

V

DY(-)

CRT AMP

IC1751

B IN

B OUT

KB

19

2 G IN

G OUT

KG

 

 

8

R IN

R OUT

KR

3

7

 

 

 

IK

5

VIP

 

 

 

REFERENCE

 

 

 

 

CN1754

{

RGB DRIVE

1

}

CRT DRIVE

DY ASSY

20NX

PICTURE TUBE

H

G2

FV

HV

11

O-V1

 

TO S2

O-VOL

3

 

 

I-HSYNC

16

PWM-DC/VOLUMEQ203

H.SYNC.BUFFER

SEP.Q390

Q001

REF

3

BOOST

6

+B

D502

H OUT

4

3

2

H DY(-)

NVM 1K BIT

B-DAT

5

 

I-PROT

17

MEMORY

B-CLK

6

 

 

 

IC003

 

 

 

I-CVIN

22

CN203

 

 

 

 

 

 

 

 

B CLK

 

38 O-BCLKN

 

 

 

B DAT

 

36 IO-BDAT

 

O-R

52

B INT

 

31 I-BINTN

 

O-G

51

 

S005

 

 

O-B

50

 

 

 

O-OSDBLK

49

 

 

 

 

VOLUME-

S004

33 I-KEY

CLOSED CAPTION

 

 

 

 

I-VPN

2

 

 

 

CONTROL

VOLUME+

S003

 

TUNING SYSTEM

 

 

 

 

IC001

 

 

 

 

 

 

 

CHANNEL-

S002

 

 

 

 

 

 

 

 

 

CHANNEL+

 

 

 

 

 

BUFFER

Q305,391

6MONOUT

 

 

ABL IN

32

R2IN

AFCFIL

 

 

31G2IN

30B2IN

29YS2/YM

HD

5VTIM

HP/PROTECT

3

20

19

18

BUFFER

Q556

HDRIVE Q501

+13V

V.BOOST D502

T501

H OUT

H DRIVE

 

Q502

 

SWITCH

 

D581

 

TP506

1

TP504

 

 

+180V

+180V

RECT

 

D552

H DY(+)

1

4

T504 FBT

HV

HV

 

 

S006

 

I-HP

1

 

TV/VIDEO

 

 

 

 

 

S007

 

 

 

 

DEMO

 

I-RESET

30

 

 

 

 

 

 

S001

 

 

19

 

POWER

14I-POWERN

I-AVCC

 

O-ADJ

 

 

 

 

 

4

STBY

2

DETECTOR

12I-RMCN

I-DSC

24

+5V

1

 

 

 

IC004

 

 

 

 

 

 

 

O-DSC

25

 

 

 

18 O-LED

O-RELAY

 

 

 

 

O-DGC

 

 

 

 

13

6

 

STAND-BY/TIMER

D002

CF001

8MHZQ607

Q608

T604

12

310

411

59

68

D636

7.5V RECT

HP

HP/PROT

Q002,003

Q300

 

H COMP

Q602

SET 7.5V

 

OCP

 

Q571

 

H-PROT

 

TP503

 

V.CONTROL HOLD

SWITCH

IC521

D507

5

 

7

 

6

 

HOLD DOWN

 

REF.

 

D573

 

+B

TP501

 

 

-13V

-13V

RECT

H-PROTECT

D561

D574

 

TP502

 

 

+13V

+13V

RECT

 

D562

2

115V

7

8

9

FV

G2

ABL

11

6 HEATER

6

CN502

5

FV

G2

AC IN

DGC

DGC

CN601

T601

F601

 

2

 

1

 

CN602

 

2

 

1

DGC RELAY

 

+12V

Q601

RY601

+9V

5V REG

+5V

 

Q650

 

 

 

PIT

T603

 

 

 

 

 

 

AC RECT

D601

 

 

2

14

 

 

 

 

 

 

 

 

4

15

 

R660

 

 

3

13

 

 

 

 

 

 

 

 

 

5

11

+7.5V

RY602

 

 

7

12

 

 

 

 

RELAY DRIVER

 

 

 

 

 

Q606,670

 

 

 

8

10

 

 

 

 

 

9

 

 

 

 

4

1

 

 

3

2

 

 

 

4

IC601

1

3

2

 

 

 

 

PH600

 

 

 

 

 

PC123FY2

 

D615

 

+B RECT

+B

D616

AUDIO VCC

AUDIO VCC

D617

12V

12V RECT

 

POWER

CONTROL

IC602

3

1

 

6

 

 

 

STBY +5V

 

STANDBY

1

REG.

8

+5V

 

IC002

 

 

9V-REG

SET +9V

Q605

TUNING CONTROL, Y/C/J

POWER SUPPLY,DEFLECTION,

TUNER/IF,AUDIO,MTS

BA4D-905-BD

— 22 —

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Contents Trinitron Color Television Table of Contents Specifications LbsSAFETY-RELATED Component Warning Safety CHECK-OUT Leakage TestSELF-DIAGNOSTIC Function Self DiagnosisSelf-Diagnostic Screen Display Self DiagnosticChassis Assembly Removal Service Position DisassemblyRear Cover Removal HOW to Handle AN Anode CAP Anode CAP Removal ProcedurePicture Tube Removal Adjustment Procedure SET-UP AdjustmentsBeam Landing Convergenge Vertical Static ConvergenceFocus Dynamic Convergence AdjustmentSCREEN-CORNER Convergence Screen G2Service Adjustment Mode Memory Service Adjustment ModeWhite Balance Adjustments B+ Voltage Confirmation and Adjustment Safety Related AdjustmentsHOLD-DOWN Readjustment Preparation Before ConfirmationDigital Power Multimeter Supply DigitalCircuit Adjustments Data Initial Average Adjustment Items 1Function Range Data Video Board Adjustments Frequency Adjustment Adjustment Items 2ID MAP SUB Bright Adjustment Sbrt SUB Contrast Adjustment RdrvDisplay Position Adjustment Disp SUB HUE, SUB Color Adjustment SHUE, ScolCenter Adjustment Hpos Size Adjustment VsizCenter Adjustment Vpos Linearity VLIN, V. CorrectionCircuit Boards Location DiagramsPrinted Wiring Board and Schematic Diagram Information Reference InformationBlock Diagram and Schematics DY AssyBoard Schematic Diagram INTBoard Variant Model List REF. no LocationIC521 NJM4558M-TE2 Board IC Block DiagramsBoard IC Voltage List PIN VoltIC301 CXA2133BS Cvco DemodTransistor Board Locator ListDiode CrystalsKG KB G2 CRT RGB DRIVE, CRT Drive Semiconductors Exploded Views Chassis KV-20S90/21SE43CElectrical Parts List REF. noCeramic Connector FuseCoil JackChip Conductor Photo CouplerMetal Chip Metal Tuner SwitchRelay VaristorAccessories and Packaging Remote Commander2LA TX 1C 3LA TX NIL BA ADS LCS IRD CCV +EVIRD Trinitron Color TV Page Safety Precautions Notification For the set with a polarized AC power cord plug Important SafeguardsPower Sources Grounding or PolarizationObject and Liquid Entry CleaningOverloading AttachmentsPower-Cord Protection AccessoriesVentilation Antenna Grounding According to the NEC Outdoor Antenna GroundingLightning Safety Check Damage Requiring ServiceReplacement Parts ServicingPage Contents Page Trinitron Color TV Features IntroductionBatteries for the Remote Control About this ManualBasic Connections TV with indoor or outdoor antenna, or Catv cableTV and VCR Connecting Additional EquipmentRear of TV TV and Cable Box Cable Box Rear of TVTV, VCR, and Cable box VCRConnecting a Camcorder Connecting HeadphonesPage Using the Remote Control and Basic Functions Button DescriptionIf you lost your remote control, see Setting Up the TV Automatically To perform Auto Setup againQuick Start to the Menus MenuTo access a menu Using the Video menuPress f to Press F to Using the Audio menu KV-20S90 onlyUsing the Timer menu ON/OFF Timer Scheduled viewingUsing the SET UP menu Favorite Channel Quick access to favorite channelsChannel SET UP menu CableOverview of the Ratings Using Parental ControlContents Defined as AgePG-13 Rating Defined asNC-17 18+ C8+14+ RatingInitial access into Parental Control Activating Parental LockUsing the Custom menu Setting the RatingRating TV will allow a maximum rating Resetting your password Information for ParentsPage Troubleshooting Lost password Remote controlTo be cleaned Cable stations don’t seem to workSpecifications For all models except as notedPage Index TV Rating A. Ratings 20 Unrated Page Page Page Page Page Page To Print Full Size Schematic Diagrams NON-SCHEMATIC PagesSchematic Diagrams To Print Tiled Version of SchematicsON-SCREEN Search Option Original Manual Issue Date 4/2001
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