SAMSUNG LW20M21C Schematic Block Diagram

8 Block Diagram

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8-1 Signal Path Block Diagram

8 Block Diagrams

LW17M24C/LW20M21C 8-1

VCTIF

TV Processor

-.IF

-.SOUND

-.2D_Comb

-.Video Decoder

- .Mic ro_contro ller

gm2221

Scaler

-.3CH ADC

- .De_interacing

-.Scaler / FRC

-.Auto Detection

-.Sync Separation

-.OSD

- .Gamma Correction

-.LVDS / TTL

656 8- bit

656_CLK

BA7657

Vid e o sw itc h

Y,Pb , Pr /

RGB HV

PC Analo g

BA7657

Vid e o swit c h

RGB HV

RGB HV

TDA7050

Headphone Amp

TDA7266D

Sound Amp

Headphone

L/ R

M27W401

EPROM

IC803

IC600

IC802

IC601

IC704

IC705

IC706

Component

Y,Pb , Pr

Main

L/ R

ADR[ 19;0]

DATA[ 7;0]

SCL/ SDA2

PM39LV020

Flash

ADR[ 17;0]

DATA[ 7;0]

IO PORT

SW_INVERTOR

SW_POWER

SW_LVDS

VCTI_RESET

PC_IDENT

HP_IDENT

AMP_MUTE

SEL COMP/ PC

SEL INT/ EXT

EEPROM

Factory,

User data

EEPROM

DDC data

SCL/ SDA1

I2C

For VCTIF Non- Flash version

LVDS/TTL

DS1337

CLOCK

SCL/ SDA1

SCART RF

SCART CVBS,RGB

S- VHS Y,C

AV CVBS

TUNER IF

SCART L, R

Component(SCART) L,R

AV,S- VHS L,R

Sound Amp

Headphone Amp

15,17,20 Inch

IC702

IC501

IC501

IC900

NT Only

8 Block Diagrams

8-2 LW17M24C/LW20M21C

AP1117D-1 8

Fixed

AP1117D-3 .3

Fixed

BA178M08

Fixed

MP1410

Adjus t able

5V _17,20inch Panel

3. 3V _15inch Panel

8V

_VCTI

9V

_SOUND A MP

5V

_TUNE R

_VCTI

_S3C9428

AP1117D-3 .3

Fixed

AP1117D-1 8A

Fixed

3. 3V

_VCTI

1. 8V

_VCTI

1. 8V_Standby

_gm 2221

3. 3V_Standby

_gm 2221

_Pm 39LV020

_EE PRO

FT101 Pin 2

IC100

IC108

IC109

IC110

IC104

IC112

IC111

IC105

IC102

IC111

IC900 Pin 8

FT144 Pin 2

M

Po w er

DC14V

600m A

Po w er

DC5V

990m A

SI999 3ADY

FET

SI999 3ADY

FET

5V_Standby

_EEPROM(DDC)

LM1085- 3. 3

Fixed (option)

MP1410

Adjus t able

8-2 Input Power Block Diagram