Hisense LCD3201EU Manuel utilisateur

LCD3201EU

SERVICE MANUAL

(V1.0)

INNOVATION IS LIFE

DEC. 21 2004

INNOVATION IS LIFE

CONTENTS

•SAFETY PRECAUTION

•PRODUCT SAFETY NOTICE

•PRODUCT FUNCTION

•LCD PANEL SPEC.

•BLOCK DIAGRAM

•CIRUIT DIAGRAM

•SOFTWARE UPDATING

•FAQ

•SPARE PARTS

INNOVATION IS LIFE

SAFETY PRECAUTION

WARNING:

Service should not be attempted by anyone unfamiliar with the necessary precaution on this

receiver.The following are the necessary precaution to be observed before serving this chassis.

1.Since the power supply circuit of this receiver is directly connected to the AC power line ,an

Isolation transformer should be used during any dynamic service to avoid possible shock hazard.

2.When replacing a chassis in the cabinet, always be certain that all the protective devices are put

back in place, such as : non-metallic control knobs, insulating cover,shields, isolation resistor-

capacitor network etc.

3.When replacing parts or circuit boards, disconnect the power cord.

4.When replacing a high wattage resistor (oxide metal film resistor ) on the circuit board, keep the

resistor(1/2in) away from circuit board.

6.Connection wires must be kept away from components with high voltage or high temperature.

7.If any fuse in this LCD TV receiver is blown , replace it with the FUSE specified in the chassis

part list.

INNOVATION IS LIFE

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the chassis have special safety-related

characteristics.These characteristics are often passed unnoticed by a visual inspe-

ction.When replacement parts are required , be sure the service technician uses

replacement parts specified by us that have the same characteristics as the original

part. Unauthorized substitutions may result in fire , electric shock , injury to persons

or other hazards.This LCD TV product should be situated away from heat source such

as radiation,stoves,or other product that produce heat .

INNOVATION IS LIFE

PRODUCT FUNCTION

-Back connections Input connections

- RS232 X1 ( for software updating)

- Digital RGB(DVI-D) input X1

- Analog RGB 15pin input X1

- Cable/antenna RF X1

- Component input X1

- S-Video input X1

- Video input X1

- Scart (CVBS+RGB in+Y/C) X1

- Scart (Video in+Video out) X1

- S-Video input X1

- AV audio input X1

- PC audio input X1

Output connections

-Scart CVBS output X2

-Mini-jack for stereo X1

Note: The above figures are for reference

only, please refer to the actual units to

determine their appearance.

VIDEO

-VIDEO

RS-232C

-AUDIO

AUDIO

YPb/Cb Pr/Cr

COMPONENT

ANT 75 VGA DVI

12 13 14 16 17 18 19 20

Removing the cover from back cover

SCART2

SCART1

LCD-TV features

PRODUCT FUNCTION

•Multimedia - TV receiver, Video monitor and PC display, all in one.

•Wider viewing angle,over 176 view angle

•Digital display device - truthfully reproducing the images, without distortion

or blurring, irrespective of magnetic or geomagnetic effect.

•200 channels storage

•Sleep timer

•Teletext with 252 pages memory

•NICAM/A2

•Dual SCART interface

•Multi-language OSD

INNOVATION IS LIFE

－The LTA320W1-L02 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent

Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.

It is a transmissive type display operating in the normally black mode. This TFT-LCD has a 32.0 inch

diagonally measured active display area with WXGA resolution (768 vertical by 1280 horizontal pixel array).

Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes.

Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,

thus, presenting a palette of more than 16.7M(true) colors with 8Bit.

－The LTA320W1-L02 has been designed to apply the 8Bit LVDS interface.

－It is intended to support LCD TV, PCTV where high brightness, wide viewing angle, high color saturation,

and high color are important.

CN1

(20pin)

LVDS

5pair

+5V

Power Circuit

Block

Source Driver Circuit

TFT - LCD Panel

(1280 × RGB × 768 pixels)

G1 S1 S1280

G768

Back light Assembly

(Direct Light Type_16CCFL)

2pin x 7CNs

(High)

RGB

Timing Controller

(LVDS Rx integrated)

Gate Driver Circuit

Inverter

Block

CN2

(14Pin)

+120V

GND

LCD PANEL SPEC.

General Description

LCD PANEL SPEC.

INNOVATION IS LIFE

500:1Contrast Ratio

View Angle Free (R/L 170(Typ.), U/D 170(Typ.))

Viewing

Angle(CR>10)

16.7M colorsColor Depth

1280 horiz. By 768 vert. Pixels RGB strip

arrangement

Pixel Format

450 cd/m2 (Center 1 points typ.)Luminance, White

Total 140 Watt

Power

Consumption 16msResponse Time

Transmissive mode, Normally Black

Display Operating

Mode Hard coating(3H), Anti-glare treatment of the front

polarizer,

Surface Treatment

0.0.537mm x 0.537mm x RGBPixel Pitch 687.36(H) x 412.42(V) x 53.0(D) mm(Typ.)Active area

32.0 inchesActive Screen Size

General Features

INNOVATION IS LIFE

BLOCK DIAGRAM

Chassis Block Diagram LCD PANEL

INVERT

…

Remote control Key button

Power board

Digital boardAudio board

LVDS CONNECT 30PIN 9PIN插座 7PIN插座

BLOCK DIAGRAM

INNOVATION IS LIFE

VIDEO Processing part

LCD PANEL

U500

GM1501

Video Processing

Build in MCU

24LC32

EEPROM

U501

K4D263238F

DDR MEMORY

U600

ST232

U601

RS232 H/V

H/V

R/G/B

VGA

Pb/Cb

Pr/Cr

74LVC14

U302

DVI

PI5V330

VIDEO SWITCH

U702

ANT.IN RF

R/G/B/FB

8 BIT ITU656

LVDS

VPC3230D

VIDEO DECODE

U400

PI5V330

VIDEO SWITCH

SDA5550M

TXT DECODE

U703

Y/C

S-VHS

SCART2

SCART1

Slave IIC BUS

VIDEO & H/V

CANNAL+

SST39VF040

FLASH MEMROY

U903

8 bit

62WV5128BLL

U706

AM29LV040

PROGRAM

U704

KEYPAD

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