Daewoo L510B1 service manual Block Diagram, Mainbord Control

Page 24

 

Input Video Rate

 

 

 

 

 

 

 

 

- H: 30~62kHz, V: 56~75Hz-

 

 

 

 

 

 

 

Resolution: up to 1024*768

 

 

 

 

 

 

 

15PIN DSUB

Mainbord Control

 

 

14.318MHz

 

 

 

 

 

 

 

 

 

 

 

 

H/V sync

 

 

 

 

 

 

 

 

2

3

R,G,B

 

 

 

H sync, V sync,

 

 

 

 

 

TDA8752

 

 

ASI320

 

 

 

 

 

 

 

 

DE & dot clock

 

 

 

PRE-AMP

Offset & amplifier

R(6bit)

 

 

Red(E/O)

 

 

 

 

G(6bit)

 

 

Green(E/O)

 

 

 

 

 

 

 

 

 

 

Buffer

 

 

B(6bit)

ADI

Scalar

OSD

 

 

(74ACT14)

 

 

 

 

Blue(E/O)

 

 

 

Controller

 

 

 

12 12 12

 

 

 

 

 

 

 

 

 

 

 

3

 

Current &

 

 

 

 

 

 

 

 

 

resistance

 

 

 

 

 

 

 

 

 

 

 

 

Controller

Output Video Rate

 

 

 

 

 

 

 

 

 

 

 

22

 

 

ADC

 

 

 

-H: 48~62kHz, V:60~75H z

 

 

 

 

 

 

 

-Resolution: only 1024*768

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clock timing

 

 

 

-Dot clock: 65~80MH z

 

 

 

& phase

Sampling

I2C bus

 

8

 

+3.3V

 

 

 

clock

Dot clock

 

 

 

 

 

PLL

 

 

Address & data

 

 

 

 

 

 

 

Clamp

 

 

 

H sync

 

 

H sync

 

line(8bit)

 

 

 

 

 

 

 

 

Panel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

dirver

 

 

 

 

 

 

 

12MHz

 

 

 

 

 

 

Power on/off

 

Micom

 

 

 

V sync

 

 

Dimming Control

 

(MTV212M)

Back

 

 

 

 

 

 

 

EEPROM

light

 

 

 

 

 

Inverter On/Off

 

 

I2C bus

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

650Vac

Panel

 

 

 

 

 

 

 

 

50KHz

 

 

 

 

 

3

 

+5V, +6V, +3.3V

 

 

 

AC input rate

 

 

+12V

DC-AV

-Voltage: 100~240Vac

 

Power Board

 

 

Dimming control

inverter

 

-Frequency: 50/60H z

 

 

Inverter On/Off

 

BLOCK DIAGRAM

Image 24
Contents XGA Color Monitor Contents Safety Precautions Safety CheckFire & Shock Hazard General Safety Information Symbols in the manualSymbols as marked on equipment Terms in the manualServicing Precautions General Servicing PrecautionsElectrostatically Sensitive ES Devices General Soldering GuidelinesIC Removal/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement Power IC, Transistor or Devices Removal/ReplacementDiode Removal/Replacement Technical InformationGeneral Information AbbreviationsPIN Connector Pin SignalOperation and Adjustment Control PanelHot Key Key Process Adjustment Procedure Adjust the width horizontal size of the screen image OSD FunctionsSelf Diagnosis Alignment Procedure Standard Check pointTroubleshooting Hints Abnormal mode detectTrouble in Power on No Raster One color is missing One color is missing No Video Black Power Problem Block Diagram Mainbord ControlPCB Layout Control PCB Component Side Page Schematic Diagram Smps Section Exploded View & Mechanical Parts List Important Safety Notice Information of Part DescriptionElectrical Parts List PART-NAME PART-DESCLine Across FB2 Carbon Film