LG 577LM, LM577B BLOCK DIAGRAM

BLOCK DIAGRAM

- 13 -

POWER CORD

15-pin D-SUB SIGNAL CABLE

POWER

SUPPLY

CONTROL PCB

INVERTER PCB

MAIN LOGIC

PCB

LCD MODULE

System Block Diagram

- 14 -

BLOCK DIAGRAM FOR Flatron LCD 577LM/ 577LH/ 576LU

24bit

Video

Digital

Video Processor

MX88L284

R

G

B

HS/VS

Dot clock

System Controll er

MC68HC05BD48

Power Connector

DC/DC

Converter

(L4973D5.1)

REG

REG

REG

REG

REG

Analog

Switch

+5V

+5V Module

I2C

Control

EEPROM

(24LC08B)

Link Connector

P anel Link

Transmitter

( Sil 100 )

Control

Signal

TMDS

SDA/SCL

15PIN

3 ROW

D-SUB

PRE AMP+ ADC

+PLL

TDA8752B

8 BIT

8 BIT

8 BIT

H-sync

Clamp

Buffer

+24V

GND

+5VST

+5VPLL

+3.3VD2

+3.3VD

+5V

+5V

+5VPLL

+5VANA

5VST

+3.3VD

+3.3VD

V-sync

ADDR

DA TA

/RD

/WR

MEMORY

2M Byte * 3

I2C

+3.3VD2

H-sync

V-sy nc

Control

Communication

8bit

16

10

DC/DC

Converter

(L4973D5.1)

USB HUB IC

(TUSB2046B)

UPSTREAM

DOWN STREAM * 4

< MAIN >

+24V

+5V

DATA

REG

+3.3V

< USB >

DC/DC

Converter

(L4973D5.1)

AUDIO AMP

TDA7496L

+13.3V

Audio

signal

input

L

R

MUTE

V+

V-

SHUT

DOWN

< AUDIO >

- Option