Hisense LCD2005EU, LCD2005 Schematic

SERVICE MANUAL

LCD2005EU/LCD2606EU/LCD3205EU

LCD3206EU/LCD2633EU/LCD3233

Oct. 22 2005

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 resistorcapacitor 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 inspection.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

Input connections

- I2C ( for software updating)

- Analog RGB 15pin input X1

- HDMI input X1

- Cable/antenna RF X1

- Component input X1

- S-Video input X1

-Scart(CVBS+RGB in) X1

- Analog RGB audio input X1

Output connections

- Headphone output X1

- Subwoofer output X1

- Audio output X1

Note:

1.AV/ S-Video/ Component audio signal can not input at the same time.

- Scart Video in X1

- AV/ S-Video/ Component audio input X1

2.Only LCD2606EU and LCD3206EU have

subwoofer output and audio output.

INNOVATION IS LIFE

PRODUCT FUNCTION

LCD-TV features

• 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

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LCD PANEL SPEC.

General Description

－ The LCD panel 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 1366 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 panel 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.

G1

Gate Driver Circuit

LVDS

5pair

Supplying Voltage

CN1

(20pin)

Timing Controller

(LVDS Rx integrated)

Gate Driver Circuit

TFT - LCD Panel

(1366×ٛRGB ×ٛ768 pixels)

+24.0 V

Power Circuit

Block

Inverter

(CN2,CN3 )

G768

RGB

2pin x 8CNs (High)

8pin x 2CNs (Low)

S1 S1280

Source Driver Circuit

Back light Assembly (16CCFL)

INNOVATION IS LIFE

LCD PANEL SPEC.

General Features

LCD3206EU/LCD3205EU: QD32HL01(QDI LCD PANEL)

Active Screen Size 31.51 inches(80.04cm) diagonal Outline Dimension 760(H) x 450(V) x 32(D) mm(Typ.)

Pixel Pitch 0.5107mm x 0. 5107mm x RGB Pixel Format Color Depth 16.7M colors

Viewing Angle(CR>10)

Power Consumption

Response Time 21ms Luminance, White 500cd/m

Contrast Ratio 800 Supplying Voltage +5V

Surface Treatment Hard coating 3H and Anti-glare

1366 horiz. By 768 vert. Pixels RGB strip arrangement

View Angle Free (R/L170(Typ.), U/D 170(Typ.))

Total 110.4 Watt (Typ.)

2

INNOVATION IS LIFE

LCD PANEL SPEC.

General Features

LCD2606EU: LC260WX (LG LCD PANEL)

Active Screen Size 26 inches(66cm) diagonal Outline Dimension 626(H) x373(V) x 44.1(D) mm(Typ.)

Pixel Pitch 0. 1475mm x 0. 4215mm x RGB Pixel Format Color Depth 16.7M colors

Viewing Angle(CR>10)

Power Consumption

Response Time 21ms Luminance, White 500cd/m

Contrast Ratio 600 Surface Treatment

1366 horiz. By 768 vert. Pixels RGB strip arrangement

View Angle Free (R/L176(Typ.), U/D 176(Typ.))

Total 76.18 Watt (Typ.)

2

Hard coating 3H and Anti-glare treatment of the front polarizer

INNOVATION IS LIFE

LCD PANEL SPEC.

General Features

LCD2005EU:T200XW01(AU LCD PANEL)

Active Screen Size 20 inches(51cm) diagonal Outline Dimension 479.0(H) x278.4(V) x 31.8(D) mm(Typ.)

Pixel Pitch 0. 1475mm x 0. 4215mm x RGB Pixel Format

Color Depth 16.7M colors Viewing

Angle(CR>10) Power

Consumption Response Time 16ms

Luminance, White 450cd/m Contrast Ratio 800

Surface Treatment

1366 horiz. By 768 vert. Pixels RGB strip arrangement

View Angle Free (R/L170(Typ.), U/D 170(Typ.))

Total 47 Watt (Typ.)

2

Hard coating 3H and Anti-glare treatment of the front polarizer

INNOVATION IS LIFE

BLOCK DIAGRAM

Chassis Block Diagram

LCD PANEL

BLOCK DIAGRAM

VIDEO Processing part

VGA

R/G/B

Y

H/V

HY5DU281622ET DDRAM

U213

HY5DU281622ET DDRAM

U214

Pb/Cb Pr/Cr

HDMI

I2C

ANT.IN

S-VHS

SCART2

SCART1

SAW

U601

Y/C

CANNAL+

R/G/B/FB

VCT49XX

U603

62WV5128BLL RAM

U500

656

8

SST39VF088 FLASH

U606

U200

MST5151

Video_OUT

LCD PANEL

INNOVATION IS LIFE