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.

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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 .

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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.

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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)

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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

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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

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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

BLOCK DIAGRAM

AUDIO Processing part

OUTPUT 6W+6W

AV/S-Video/Compent AUDIO

74HC4052 U501

PC AUDIO

MST5151 U200

SCART1 AUDIO L/R AUDIO

SCART2 AUDIO L/R AUDIO

TV AUDIO

HDMI AUDIO

74HC4052

U501

VCT49XX

U603

L

R

P14V

L

R

+12V

TPA3008D AMPLIFIER

U800

TDA2822M EAR AMP.

U801

Subwoofer Output

Audio Output

HDMI INPUT

AVSW1 AVSW2

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BLOCK DIAGRAM

I2C Controlling part

I2C

XP208 U206

HDMI 24LC04

24LC04

U605

24LC64

Tuner

U604 U600

MST5151 U200

VCT49XX U603

DDROM

PU_DVI

P_EN

BKLON

AMUTE

PCF9555

U602

AVSW1 AVSW2

U213

U214

STANDBY RST_MST

LED OPTION2

OPTION3

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BLOCK DIAGRAM

POWER part

AC INPUT 50/60HZ

PFC

DC/DC

+5V

PANEL POWER

+12V

TDA2822M(U801)

PANEL POWER

DC/DC

M4334(U207)

U106 U108

L7808

+24V

+8V

Inverter POWER

AMS1117-2.5

U202

LD1085

U203

AMS1117-3.3

U604

AMS1117-3.3

U103

AMS1117-5.0

VCT49XX

74HC4052(U501)

U213/U214

MST5151

VCT49XX

PANEL OWER

LG(32〃 26〃)

12V

QDI（32〃）

5V 5V

AU(20〃)

INNOVATION IS LIFE

BLOCK DIAGRAM

POWER part

AC INPUT 50/60HZ

DC/DC

+5V (Standby )

AMS1117-1.8

U105

AMS1117-3.3

U109

+1.8V

VCT49XX

+3.3V

VCT49XX

+3.3V

PCF9555(U602)

+3.3V

62WV5128BLL(U500)

+3.3V

FLASH(U606)

24LC64(U604) 24LC04(U605)

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CIRCUIT DIAGRAM

System power Part

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CIRCUIT DIAGRAM

Scaler_PC&601&MCU

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CIRCUIT DIAGRAM

Scaler HDMI&HDTV Input

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CIRCUIT DIAGRAM

Scaler DDRAM Part

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CIRCUIT DIAGRAM

AV Input Part

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CIRCUIT DIAGRAM

Tuner Input Part

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CIRCUIT DIAGRAM

VCTI_Core Part

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CIRCUIT DIAGRAM

VCTI Memory Part

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CIRCUIT DIAGRAM

Sound Amplifier Part

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SOFTWARE UPDATING

Updating CABLE

- You can update our LCD’s software through a special I2C cable(show as below)

- This I2C cable includes a updating board、a 3.5mm Stereo Earphone plug and 3 wires Built the cable as show

updating board

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SOFTWARE UPDATING

Updating Operation:

.

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SOFTWARE UPDATING

Updating Operation:

.

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SOFTWARE UPDATING

LPT Setup

The first step:

First double click the “LPTDrv” folder,you should select a LPT driving software in the folder.

.

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SOFTWARE UPDATING

LPT Setup

The second step: When the LPT setup is OK,Please open the system manager and select LPT1.

.

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SOFTWARE UPDATING

Updating Operation:

The first step:

First turn on the TV, then plug one end of the serial cable to the LPT port of PC and other end to I2C port of TV. and double click the file vct49xyi_start.exe in “vct49xyi” folder, A dialog will come up like sub picture.

.

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SOFTWARE UPDATING

Updating Operation:

The second step:

click the “TVT” button on the bottom, A dialog will come up like sub picture.

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SOFTWARE UPDATING

Updating Operation:

The second step:

Double click the “F:\\mints.bin” , A dialog will come up like sub picture.

Note:

LCD colour TV software updating setup

1.File->Preferences->LPT Preferences LPT:The current LPT Delay:0 Time out :300

2.Name:The folder of Updating software

Address : From 0x800000

To 0x87ffff

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SOFTWARE UPDATING

Updating Operation:

The third step:

After clicking the “TVT” button on the bottom, A DOS interface will come up like sub picture.If the word following “…” is “OK” , it shows that the communication between the LCD colour TV and compute is OK,or it needs to check the connect of I2C.

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SOFTWARE UPDATING

Updating Operation:

The fourth step:

1.After the DOS interface disappeared. click the “Bootloder Version ” button, it ought to shows “22” witho ut red words such as “No Acknowledge from Stave”.

2. Wait for 30 seconds after clicking the “Erase 16Bit Flash ” button

3.If the red words such as “No Acknowledge from Stave” don't appear After the updating progress,that the software updating is OK.

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FAQ

1、Turn on the TV,The LED is red,no display on screen

- replace the main board or updating the software.(it’s the software is wrong)

2、Turn on the TV,The LED is blue,but no picture or/and no sound

- you should to replace the main board.

3、In TV state,can not to tuning

- you should to replace the main board.

5、No teletext

- You should to replace the main board.(the teletext IC bad)

6、No sound

- You should to replace the main board.

7、can not to updating software

- You should to replace the main board

9、No reaction with PC

- You should change the main board

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SPARE PARTS

MODEL:LCD3206EU

PART NUMBER SAP NO. REMARK

MAIN BOARD

POWER BOARD RSAG2.908.609-6 108033

BOX E/RSR8.865.1865 1025769

FRONT COVER RSAG8.074.207\W9套B2 SYN-198 1025240

BACK COVER RSAG8.074.208 1025241

REMOTE COTROL EN-20921C 1027957

PEDESTAL GROUPWARE RSAG6.121.037 106430

HANGING BRACKET RSAG6.162.015 1020716

RSAG2.908.655-3 108028

INNOVATION IS LIFE

SPARE PARTS

MODEL:LCD3205EU

PART NUMBER SAP NO. REMARK

MAIN BOARD

POWER BOARD RSAG2.908.609-6 108033

BOX E/RSR8.865.1865 1025769

FRONT COVER RSAG8.074.207\W9套B2 SYN-198 1025240

BACK COVER RSAG8.074.208 1025241

REMOTE COTROL EN-20921C 1027957

PEDESTAL GROUPWARE RSAG6.121.037 106430

HANGING BRACKET RSAG6.162.015 1020716

RSAG2.908.655-3 108028

INNOVATION IS LIFE

Hisense LCD2005EU, LCD2005 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual