Daewoo DSL-20D3 Manuale utente

SERVICE MANUAL

LCD Television

CHASSIS : SL-110P

Model : DSL-20D3

APR. 2005

Contents

I. Parts with the exception of MODULE

1. Safety Precaution 3

2. Product Specification 4

3. Block Diagram 7

3-1 PCB Structure

3-2 Power ree

3-3 Signal Block Diagram

4. Description of video circuit 10

5. Schematic Diagram 20

6. SL-110P Service Data 29

7. Service Part List 36

7-1 Difference List of SL-110P 43

8. Adapter 44

9. Inverter 45

10. Exploded View 47

-2-

-3-

1. Safety Precautions

(1) When moving or laying down a LCD Set, at least two people must work together. Avoid any

impact towards the LCD Set.

(2) Do not leave a broken LCD Set on for a long time. To prevent any further damages, after

checking the condition of the broken Set, make sure to turn the power (AC) off.

(3) When opening the BACK COVER, you must turn off power (AC) to prevent any electric

shock.

(4) When loosening screws, check the position and type of the screw. Sort out the screws and

store them separately for reassembling. Because screws holding PCBs are working as

electric circuit grounding, make sure to check if any screw is missing when assembling /

reassembling. Do not leave any screws inside the set.

(5) A LCD Set contains different kinds of connector cables. When connecting or disconnecting

cables, check the direction and position of the cable beforehand.

(6) Connect/disconnect the connectors slowly with care especially FFC (film) cables and FPC

cables. Do not connect or disconnect Picture 1-1. Panel Gas Exhaust ube

connectors instantaneously with force, and

handle them carefully for reassembling.

(7) Connectors are designed so that if the number of pins or the direction does not match,

connectors will not fit. When having problem in plugging the connectors, check their kind,

position, and direction.

-4-

2. Product Specification

ModelDSL-20D3

CHASSIS NOSL-110P

CountryEurope

Remote controllerR-47B02

LCD Panel LCD ypeN (AIO)

Screen Size)20” (50.8 )

Aspect Ratio4 : 3

Resolution800 600 (SVGA)

Pixel Pitch0.51 0.51

Brightness500 cd/

Contrast ratio500 : 1

Viewing Angle (U/D/R/L) 60 / 60/ 80 / 80

Response ime16

V System Color SystemPAL / SECAM

Receiving SystemPAL B/G, I/I’, D/K, L-SECAM,

L’-SECAM

uning MethodFVS

unerPA BF19D (PAR SNIC)

VHF :

BAND : CH2 ~ CH4

BAND : CH5 ~ CH12

Reception ChannelCABLE BAND : S1’ ~ S3’,

S1 ~ S20

UHF :

HYPER BAND : S21 ~ S41

BAND , : CH21 ~ CH69

PIF :

38.9 (B/G, D/K, I/i’, L),

34.2 (L )

SIF :

33.4 (B/G), 32.4 (D/K, L),

32.9 (I/I’), 41.0 (L’)

IF & SubCarierS-subcarrier :

5.5 / 5.85 (NICAM) /

5.74 (2-Carrier)

Color-subcarrier :

4.43 (PAL), 4.25 /

4.40625 (SECAM)

Audio SystemMono / Stereo / Dual

Channel Memory99 Channel, Auto Preset

Input V Input75 Ohm external input terminal

(DIN Standard)

A/V (R,G,B / COMPOSI E) Scart Jack 1

S-Video Input S-VHS (Y/C) 1

COMPOSI E

Video / Audio(N SC, PAL, SECAM, N SC4.43)

RCA Jack 1, Audio L/R 1

COMPONEN

Component / Audio(Y, Pb/Cb, Pr/Cr, 480i ~ 1080i)

RCA Jack 1

Audio L/R 1

PC InputVGA ~ SVGA

15Pin D-SUB Jack 1

PC Audio Input Stereo Jack 1

Output Video / Audio Scart Jack 1

Headphone 3.5 Mini Stereo Jack 1

2-1. SPECIFICATION

-5-

Product Specification

Other FeaturesComb Filter2D

C I

L I

OSD17 Languages

ELE EX 10 Page memory OP / FLOF

Audio Output5W (2.5+2.5W)

(10% HD, 60%MOD at 1kHZ)

Speaker 5 2

Aspect ratio control16 : 9 / ZOOM

Auto Power off

Wake up

Sleep time15/30/45/60/90/120 min

Wall mount holeVESA compatible

Power Consumption

Max50 W

Stand-by3W under

Power supplyDC 15V

External Adaptor

Power SourceAC 100-240V

50 / 60

Dimension (W H D)

Set dimension (with Stand)(608 403 215)

ilt (Front / Back)5” / 15”

Weight (with Stand)10.95

USER CON ROL & ACCESSORIES POWER V/VIDEO MENU

Control Button (Set) VOL. DOWN VOL. UP

PR. DOWN(On) PR. UP(On)

Remote Controller (32keys) POWER MU E PR. UP

PR. DOWN VOL. UP

VOL. DOWN MENU

NORMAL RED GREEN

YELLOW CYAN ELE EX

SLEEP ASPEC PC

V/AV S.MODE RECALL

X keys 0 ~ 9 Digit keys

Instruction AC Adapter

Accessories AC Power Remote Controller

Battery (AAA 2)

-6-

Product Specification

Stamdard Resolution (Mode) V Frequency (Hz) H frequency (KHz) 15 inch 17 inch 20inch

MAC 640 480 66 35

832 624 75 49.73

2-2. Available Input Signal

(1) PC input

(2) Component input

- 480i/ 60 Hz

- 480p / 60 Hz

- 576i / 50 Hz

- 576p / 50 Hz

- 720p / 60 Hz

- 1080i / 50 Hz

- 1080i / 60 Hz

(3) Video input

- N SC-M/4.43

- PAL / SECAM

SOUN

ADC

MST9883

(IC16)

SAW

FILTER

RF TUNER

SOUND PROCESSOR

PROCESS

VIDEO

DECOD

-ER

MICOM

TTX&

CAPTION VIDEO

BACK

END

DISPLAY

DECODER EEPROM

24LC16(IC31)

S-VIDEO Input

S-VHS (JP5)

SCART(JP11)

(Only Europe)

Video Input

RCA (JP8)

SW IC

4052

(IC2)

SDRAM

IS42S3200B-6T

(IC23)

FLASH

SST39VF800A

(IC11)

SCALER

PW113 (IC13)

PIXEL

PROCE-

SSOR

SCALER

& CLT

& OSD

COLOR

SPACE

EXPAND

-ER

De-interlacer

MDIN-150 (IC22)

De-

interlace

processo r

LOGIC IC

74LV273 (IC40)

SW IC

PI5V330

(IC34)

SW IC

PI5V330

(IC9)

SW IC

PI5V330

(IC5)

SW IC

4052

(IC33)

MICOM EEPROM

24LC16 (IC38)

LVDS

EL-LV385

(IC7)

INVERTER

SCL1 SDA1

KEY

TXD

TV (RGB)

TV (HV)

MAIN (L,R)

H.P (L,R)

SCL1 SDA1

CVBS

Y/C

RGB, CVBS

RXD SCL2

GHS

GCLK

GCOAST

SCL2

SDA2

L, R

L, R G COAST PC(RGB) 24bit

SCART

AUDIO

AVAUDIO

COMP1 AUDIO

PC AUDIO

PC(HV)

TV (HV)

PC (RGB)

COMP1 (YPbPr)

TV (RGB)

MAIN IC VCTI

(IC29)

COMP2 AUDIO

COMP2 (YPbPr) SW

SWSW

MAIN (R)

MAIN (L)

H.P (L,R)

SOUND AMP

TDA1517 (IC30)

SOUND AMP

TDA1517 (IC25)

SPEAKER

H- PHONE

SCL2 SDA2

RXD

CXA1315

(IC26) SOUND MUTE

SCL1

SDA1

GVS

GHS

(RGB),

COMP

(YPbPr),

24bit

GCLK

TXD

GVS

SCL1

SDA1

RGB

24bit

VHS

VVS

VCLK

SCL2

SDA2

RGB

24bit

DHS

DVS

DCLK

LCD ON

Dimming 4-Lamp

cable

(15"/ 17")

6- Lamp

cable (20" )

RGB

DATA

8bit

CLK 2bit

TO LCD

MODULE

15inch : XGA (S/S)

17inch : WXGA (S/S)

SDRAM Interface

3-3. SIGNAL BLOCK DIAGRAM

(5- Line)

D AMP

KA4558 (IC36)

L : PC

H : TV/COMP1,2

L : COMP1,2

H : TV

L : COMP2

H : COMP1

TV/COMP ADC SEL MODE

L L PC

L H X

H L X

H H AV

A_SEL0 A_SEL1 MODE

L L COMP1

L H PC

H L COMP2

H H AV

4. Description of video circuit

-10-

SL-110P video circuit :

Process various input signals <Analog-TV signal, CVBS(NTSC), Y/C signal, Component

signal(Y-Pb-Pr 1080i, 720P, 480P, 480i), Analog-PC signal> to produce Output Signal for LCD

panel(15” : 1024 768, 17” : 1280 768, 20” : 800 600).

Introduction for main IC

4-1. IC29 (The VCT 49xxI)

: IC family of high-quality single chip TV processors <DRX, MSP, VSP, DDP and SDA>

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