Daewoo DLP-20J1 Manuel utilisateur

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. : DSL130PEF0

SL-130P

DLP-20J1

DLP-20D7

DLP-20W2

SEP. 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 10

5. Schematic Diagram 11

6. PCB Data 18

7. Trouble Shooting 20

8. Service Part List 28

8-1 Service Part List 28

8-2 Difference List of SL-130P 34

9. Power 36

10. Inverter 38

11. Exploded View 40

11-1 DLP-20J1 40

11-2 DLP-20D7 41

11-3 DLP-20W2 42

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

DLP-20J1/D7(Main part)

-7-

Block Diagram

DLP-20J1/D7(Power part)

-8-

Block Diagram

DLP-20W2(Main part)

-9-

Block Diagram

DLP-20W2(Power part)

-10-

4.Description of Video Circuit

SL-130P 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

Autres manuels pour DLP-20J1

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