Daewoo DLX-20J1BHS Bedienungsanleitung

Caution

: In this Manual, some parts can be changed for improving. their

performance without notice in the parts list. So, if you need the

latest parts information, please refer to PPL(Parts Price List in

Service Information Center.

Service Manual

20" LCD TV

CHASSIS :

Model :

S/M NO. : DSL130XEF0

SL-130X

DLX-20J1BHS

OCT. 2006

Contents

I. Parts with the exception of MODULE

1. Safety Precaution 3

2. Product Specification 4

3. Block Diagram 5

4. Description of video circuit 8

5. Schematic Diagram 9

6. PCB Data 15

7. Trouble Shooting 17

8. Service Part List 25

8-1 Service Part List 25

9. Power 30

10. Inverter 31

11. Exploded View 33

11-1 DLX-20J1 33

SOFTWARE INSTALL & UPGRADE

-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 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

-5-

3. Block Diagram

-6-

Block Diagram

LCD_ON

ON_OFF

+5V_PANEL

+5V_SW

+9V_SW +3V3S_SW

+1V8_SW

15V_SW

+8V_SW

+12V_PANEL

33V_TU

15V

S/B_3V3

10 9

GND GND

87 543216

I820

IRF7316

20"AUO

PANEL

I801

IRF7316

I801

IRF7316

I851

APW1172

I809

AP1117E18

I803

AP1117E33 I401

LA42032

I501

LOC-1 (TDA15501E)

I502

24LC32A

I820

IRF7316

I820

IRF7316

I816

LM317 ADJ

12V

I852

KIA78L08F

I503

SST39VF

020

I508

DTC34LF

20"LG

PANEL

U100

RF TUNER

U100

RF TUNER

I405

PI5V330

I504

TDA9178T

I807

BA6161

LG PANEL

OPTION

-7-

Block Diagram

-8-

4.Description of Video Circuit

SL-130X video circuit:

Process input signals <Analog-TV signal,CVBS(NTSC),Y/C Signal> to produce Output signal

for LCD panel.(J1/D7 : 640 x 480 , W2 : 1366 x 768)

Introduction for main IC

4-1. I501(TDA15521E)

The LCD One Chip 1(LOC 1)series combines the functionsof a Video Signal

Processor(VSP) together with aFLASH embedded main microcontroller(doing TEXT and

TV control)and an LCD

panel controller.In addition the following functions are available:

-Adaptive digital(4H/2H)PAL/NTSC comb filter

-Teletext decoder with 10 page text memory

-Multi-standard stereo decoder

Microconroller

-80C51 microcontroller core standard instruction set and timing

-256k x 8bit program ROM

-8k x 8bitauxiliary RAM

-8bit ADC with 4 multiplexed inputs.

-I2C byte level bus interface

5. Schematic Diagram

-9-

Schematic Diagram

-10-

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