Hyundai H-LCD2601 service manual for26 32inch

LCD COLOR TELEVISION

SERVICE MANUAL

CHASSIS LS08

Please read this manual carefully before service.

CONTENTS

CHAPTER ONE FEATURES AND COMPOSITIONS........................................................................1

Models for LS08 Chassis................................................................................................................................1

Main Features..................................................................................................................................................1

Unit IC Compositions.....................................................................................................................................2

PCB Assembly................................................................................................................................................3

CHAPTER TWO MAIN ICS FUNCTION INTRODUCTION ............................................................5

GENERAL INTRODUCTION...........................................................................................................................................5

ICs FUNCTION INTRODUCTION IN DETAILS...........................................................................................................5

Main Tuner (TMI4-C22P2RW) ................................................................................................................................... 5

Sub Tuner (TAD5-C2IP1RW) ...................................................................................................................................5

.GM150 ...............................................................................................................................................................6

TDA8759.............................................................................................................................................................10

TPA3002D2.......................................................................................................................................................................................................13

SM5301AS .........................................................................................................................................................15

SAA7115 ...........................................................................................................................................................16

UOC(TDA15063H) ............................................................................................................................................. 19

CHAPTER THREE SIGNAL FLOW ANALYSIS AND KEY POINT MEASURE DATA.................23

Manostat Pin Voltage in Main Board Schedule.......................................................................................... 25

Main Components and Socket Locations and Definitions ........................................................................... 28

Main Components Description.....................................................................................................................28

Main Points Undulance Illustrations.............................................................................................................28

CHAPTER FOUR SYMPTOMS AND CORRECTION ..............................................33

CHAPTER FIVE BREAKABLE AND MAINTENANCE PARTS.............................

34

CHAPTER SIX FACTORY SETUP AND NOTICE..........................................36

APPENDIX (Schematic Diagram)..............................................................................................................39

1. Schematic Circuit Diagrams

2. Final Assembly Diagram

3. Final Wiring Connection Diagram

Designs and specifications are subject to change without notice

CHAPTER ONE FEATURES AND COMPOSITIONS

Models for LS08 Chassis

CHD-W260F8CHD-W270F8PCHD-TD260F8

CHD-W270F8CHD-W270F8PCHD-TD270F8

CHD-W320F8CHD-W320F8PCHD-TD320F8

CHD-W370F8CHD-W370F8PCHD-TD370F8

Main Features:

● Radio Frequency input; support CATV

Capable to receive the full-append cable programs in 470MHZ

● Two-way AV input

Capable to receive PAL, NTSC, SECAM color systems; Very convenient to watch VCR (video cassette

recorder), Pickup Camera, other Disc’s

● AV output

programs

Capable to transmit signal of different AV/RF systems to other AV receivers through the current AV cable

● Y/C component signal input (same to S-Video input)

Convenient to receive the Y/C high definition component signal from DVD

● HDTV input

Capable to receive the high definition YPbPr signal in 480i, 480p, 576i, 720p, 1080i, and 1080p formats

● VGA input

a. Convenient to connect with the host computer

b. Capable to use as the display terminal

c. Connect the 3.5mm(diameter) audio cord to your computer’s audio main board, you can listening the

beautiful music transmitted from your host computer

● DVI input

Convenient to receive DVI signal

● PIP, POP, PBP function

● Turn on with intelligence

● Zoom mode

● LTI, CTI, and black field

● BBE sound technology

● Trusurround sound technology

● Full-light display

● Picture amending display function

● Super definition display panel

● 3:2, 2:2 Pull Down

● TV program scan function

● Timer function

Automatically off at certain preset time, and enters into the standby mode

● Blue background noise reduction

In TV, AV (S-Video), YCbCr, and YPbPr modes, screen displays soft blue background if there is no signal input

● Auto Off if no signal input

In TV mode, the LCD TV will automatically power off within 15 minutes and enter into the Power Energy

Saving Mode if there is no signal input.

● Multi Language On-Screen Display menu

1

Ordinary and graphical user interface makes the menu operation more user-friendly

● Power Energy Saving Mode (power management mode)

In PC mode, the LCD TV will automatically power off within 30 seconds and enter into the Power Energy

Saving Mode if there is no VGA signal input. It will automatically exit from the Power Energy Saving Mode and

work again when it received a valid VGA signal or press any button on the panel/remote con

● Plug and Play

trol.

It is no need to equip any installation software when the product is used as computer terminal display equipment

● Legerity, convenience, low power consumption

● Digital Photo Album Function(Only for CHD-W270F8P/ CHD-W320F8P/ CHD-W370F8P)

● Built-in DVD ModuleOnly for CHD-260F8 CHD-TD270F8/CHD-TD320F8/CHD-TD370F8

Entirely Compatible to DVDSVCDVCDCDMP3

Compatible to PAL/NTSC Discs

High quality digital audio coaxial input enable you to feel as if sit in the theatre with the perfect classical hi-fidelity

experience



Automatically delete unsuitable parts according to the chosen play levels (max.8 )(only for DVD discs with play

level control)



As many as 32 subtitles

As many as 8 audios

Unit IC Compositions

LS08 chassis LCD TV is mainly composed of regulator ICRF ICvideo processor ICPower Amplify IC

Analog Video ICSystem Control IC and Key Control IC, see this IC frame as below:

2

PCB Assembly

It is mainly composed of TV BoardRemote Control Receiver(Signal Receiver) K Board and Main Board.

Hereunder function introduction to every PCB Assembly

Number Parts Description

1 Main Board

Assembly

It is the core of signal processing for LCD TV, which takes responsibility of transforming

outer signal into the uniform digital signal identified by LCD display with use of System

Control IC. TV and AV signals input from TV Board are decoded by UOCIII to

transport RGB signal which is to be transformed by TDA8759 modulus to transport

24bit RGB digital signal, then it is to be transformed by GM1601/GM1501 to produce

LVDS signal displayed on the screen, in addition, signals input from VGADVI would

directly enter into GM1501 procedure format transformation and on screen display.

2 TV Board

Assembly

It is mainly composed of two tuners (main and sub tuners) AV / S HD signal terminals

and some peripheral processing IC. The main tuner demodulates RF signal to IF signal, and

the sub tuner produces CVBS signal, all signals are sent to the main board after transfer.

3

3 Remote Control

Receiver

Assembly

4 Built-in Power

Board

Assembly

5 K Board

Assembly

6 Screen

Assembly

It is composed of one indicator light and one remote control receiver, which enable Users

operate the TV conveniently and know its current working status simply with a remote

control..

It can transform AC 220V into DC for ICs, including +24V+12V+5V and +5VS power

supply in standby mode.

It consists of 7 function buttons by which users can operate the TV freely.

Screens for LS08 have built-in adverse transformer which change DC to high voltage AC

signal lightening the back light; The LCD screen is used to display the image after the

image signal has been processed by the main board.

,

CHAPTER TWO MAIN ICS FUNCTION INTRODUCTION

GENERAL INTRODUCTION:

TV Board

Number Location Type Main Function

4

1 UT1 TMI4-C22P2RW Audio and image intermediate frequency signal output

2 UT2 TAD5-C2IP1RW Sub picture CVBS signal output

Main Board

3 U302U303 24LC21A T/SN EEPROM

4 U701 24LC32A T/SN Buffer

5 U306,U307,UA3 FSAV330QSCX Switch selection

6 K201 K7262N Audio surface filter

7 K202 K9352N Audio surface filter

8 U6 TPA3002D2PHPR Audio amplifier

9 U801 AM29LV800DT-70EC Flashcontrol program inside

10 U700 GM1501-BD Video processor

11 U201 TDA15063H-N1B06557 AV decoder

12 U402 SAA7115HL/V1 Sub channel video decoder

13 U305 SM5302AS-G-ET High definition signal filter

14 U400 TDA8759HV/8/C1 Video signal modulus transformer

15 U5 TDA9178T/N1 Video signal picture amendment

16 U600

MT46V2M32LG-4

Frame buffer

.ICS FUNCTION INTRODUCTION IN DETAILS

Main Tuner (TMI4-C22P2RW)

Pin Definition Description

1 AGC Auto gain control

2 UT NC

3 ADD Ground

4 SCL IIC bus (Clock)

5 SDA IIC bus (Data)

6 NC NC

7 +5V Power supply

8 NC NC

9 30V To produce 0~30V tune voltage

10 NC NC

11 IF Intermediate frequency TV signal

Intermediate frequency TV signal

Sub Tuner (TAD5-C2IP1RW):

Pin Definition Description

1 AGC Auto gain control

2 NC NC

3 ADD Ground

4 SCL IIC bus (Clock)

5 SDA IIC bus (Data)

6 NC NC

7 +5V Power supply

8 NC NC

5

9 33V To produce 0~30V tune voltage

10 NC NC

11 IF Intermediate frequency output (NC)

12 IF Intermediate frequency output (NC)

13 SW0 Band control

14 SW1 Band control

15 NC NC

16 SIF NC

17 AGC Auto gain control

18 VEDIO CVBS signal output

19 +5V Power supply

20 AUDIO NC

GM1501

GM1501is a kind of processing chassis for dual channels image and video, which is mainly used for LCD displays

and integrative TV products. With the resolution of WUXGA, it not only supports PIP technique, but possesses some

IC functions applied to image catch process and clock display. It integrates high velocity AD converter, PLL, high

reliability DVI receiver, X86 series miccontrol and LCDS inverter. See the features as below:

Main Features

● High quality image zoom function;

● Analog RGB signal input interface;

● Intelligent output signal auto identification;

● Integrated high-power PLL output;

● High-reliable self-adaptive DVI input interface;

●4:4:4/4:2:2/CCR656/601 8/16/24bit digital video interface;

● Embedded IC for adjustments of gaincontrastbrightnesscolor saturationhue and fleshtone;

● Efficiency in reducing EMI electromagnetism inference;

● Inclined grain processing with small angle;

● High quality video processing;

● Programmable output format;

● Embedded LVDS transport;

● Advanced OSD;

● Embedded micro controller

Pin Description :

Pin Name Description

Analog Signal Input Port

L3 AVSYNC ADC vertical synchronization signal input

L4 AHSYNC ADC horizontal synchronization signal input

N2 VGA-SCL VGA lock input

N1 VGA-SDA VGA digital input

D1D2 RED+RED- Red analog signal input

C3 SOG Green synchronization signal

C1C2 GREEN+- Green analog signal input

6

B1B2 BLUE+BLUE- Blue analog signal input

A2,B3,E3,D3 ADC3.3 ADC3.3Vpower supply

A3A4 ADC1.8 ADC1.8Vpower supply

A5B4 ADC-DGND ADC digital ground

C4D4E1E2E4 ADC-AGND ADC analog ground

DVI Input Output Port

N4

N3

DVI-SCL

DVI-SDA

DDC interface , serial clock signal

DDC interface serial data signal

A6B6 RXC+RXC- DVI clock input signal

A8A10

B8B10

RX2+

RX0+

RX0-RX2-

DVI input port

B11 REXT Exterior exit resistance

C6C11 DVI-3.3 DVI 3.3V power supply

D6D8D10 DVI-1.8 DVI 1.8V power supply

A7,A11,B5,B7,C7,D7

DVI-GND DVI ground

D11

Low Bandwidth ADC Port

C13 LBADC-33 ADC3.3Vpower supply

A12B12C12 LBADC_IN1

ADC analog input channel

LBADC_IN3

D12 LBADC_RETURN Channel analog ground

D13 LBADC-GND Power supply voltage analog ground

OCM IC Port

AA1~AA3,Y1~Y3,

W1~W3,V1~V4,

OCMADDR0

OCMADDR19

Address input output port

U1~U4,T1~T3

AB1~AB3,AC1~AC3,

AD1~AD4,AE1~AE3,

OCMDATA0~

OCMDATA15

Data input output port

AF1~AF3

OCM Port Control Signal

R1T4P1P2 ROM_CSn~

ROM_CS2n

Part selection signal

R2 OCM_REn Read enable signal

R3 OCM_WEn Write enable signal

L1

L2

OCM_INT2

OCM_INT1

Interrupt

M1 OCM_UDO OCM data output

M2 OCM_UDI OCM data input

D25 OCM_TIMER1 OCM timer input

Standard Definition Video Control Port

D16 SVCLK SV pels clock input

C14 SVHSYNC SV horizontal synchronization signal input

B14 SVVSYNC SV vertical synchronization signal input

A14 SVODD Scan status input

A17 SVDV SV data input

Standard Definition Video Data Port

7

D14,D15,A15,A16,

B15,B16,C15,C16

SVDATA7~

SVDATA0

SV ITU656 data input

Video Control Port

A20 VCLK Video pels clock signal

D19 VHS_CSYNC Video horizontal synchronization signal input

C20 VVS Video vertical synchronization signal input

B20 VODD Scan status input

D20 VDV (VSOG) Video data input

B17 VCLAMP Video clamp enable output

A21,A22,A23,B21,

B22,C21,C22,D21

C17,C18,C19,A18

A19,B18,B19,D18

B23,B24,B25,A24

A25,C23,C24,D24

VGRN7~ VGRN0 Green signal or Y signal input

VRED7~ VRED0

VBLU7~ VBLU0

Red signal or V/Cr/Pr signal input

Blue signal or U/Cb/Pb signal input

Screen Control Port

A26 PPWR Screen power control

B26 PBIAS Screen bias control

D26C25C26 PWM2 ~PWM0 Pulse width modulation output

AC7 DCLK Pels clock output

AC16 OEXTR Connect external LVDS bias resistance

LVDS Port

AE14~AE16,AE19~

AE23,AF13~AF16

A0-~A3-, A0+~A3+

B0-~B3-, B0+~B3+

Low voltage difference data input

AF19~AF23,AF11

AD14,AD11,AE13

AE11,AC11,AF10

AE12,AF12,

LVDS_SHIELD[5] ~

LVDS_SHIELD[0]

Low voltage difference protect output

AC+,AC-,BC+,BC- Low voltage difference protect input

AF20,AE20

Screen Port Power Supply

AD12,AD13,AC12 LVDSB_3.3 LVDS B channel power supply

AC13,AC14,AC15 LVDSB_GND B channel ground

AC20,AC21,AC22 LVDSA_3.3 LVDS A channel power supply

AD19,AC19,AC20 LVDSA_GND A channel ground

AE17 VDDD33_LVDS Analog power supply

AD17 VSSD33_LVDS Analog ground

Clock Composite and Power Supply

G4 XTAL crystal oscillator interface

F2 VDDD33_PLL

Digital power supply

H1 VDDD33_SDDS

J1 VDDD33_DDDS

G2 VSSD33_PLL

Digital ground

J4 VSSD33_SDDS

K4 VSSD33_DDDS

F4 VDDA33_RPLL Analog power supply

8

G1 VDDA33_FPLL

H3 VDDA33_SDDS

J3 VDDA33_DDDS

F3 VSSA33_RPLL

Analog ground

H4 VSSA33_FPLL

H2 VSSA33_DDDS

J2 VSSA33_DDDS

G3 TCLK Reference clock signal input

K2 ACS_RSET_HD External resistance port

System Signal

K1 RESETn Reset signal

M3M4 IR0IR1

P4 MSTR_SCL Main clock output signal

P3 MSTR_SDA Main data output/input signal 

R4 EXTCLK External clock input

Frame Storage Interface

U24,U23 FSCLKp,FSCLKn Fine storage clock output

V24,V25 FSRAS,FSCAS Address output

V26 FSWE Write enable port

W26 FSCKE Read enable port

J24 FSVREF Reference voltage input

K26 FSVREFVSS Reference voltage ground

W25 FSVREF Reference voltage input

W24 FSVREFVSS Reference voltage ground

L26 FSDQS Data filter

F24~F26,G23~G26

H24~H26,J25,J26,

FSDATA31~

FSDATA0

Data input output port

R24~R26,P24~P26

N23~N26,…….

T24,T25,U25,U26 FSDQM3~ FSDQM0 Data output mark

Y26

Y25

AA24~AA26

AB24~AB26,

FSBKSEL1

FSBKSEL0

FSADDR11~

FSADDR0

Layer address

Range address output

AC24~AC26

AD24~AD26

E23, F23, H23, J23,

L23,M23,P23, R23,

FS_2.5

2.5V power supply

T23,V23,W23,Y23,

AA23,AB23,AC23

K23 VDDA18_DLL 1.8V power supply

K25 VSSA18_DLL Power supply ground

Digit power supply

K10,K11,K16,K17,

CORE_1.8 1.8V power supply

L11,L16,T11,T16,

T17,U10,U11,U16,U17

9

D23, W4,Y4, AA4,

AB4,AC4,AC6,D17,

IO_3.3

D22,AC8,AC10

K12,K13,K14,K15,

L10,L12,L13,L14,

D_GND

L15,L17,M10,M11,

M12,M13

A1ACD5AC17

K3F1

NO_CONNECT

GM1501Internal Diagram

3.3V power supply

Power ground

NC

TDA8759

TDA8759 is a triple 8-bit video converter interface. The IC converts a RGB analog signal into a 24bit RGB or

YUV or YCbCr digital signal , or converts a YUV or YCbCr analog signal into a YUV or RGB digital signal with a

sampling rate up to 81 Msps. The IC supports resolutions from 480i and VGA to HDTV and XGA.

Main Features:

● Triple 8-bit Analog-to-Digital Converter (ADC)

●Three independent analog video sources up to 81 Msps selectable by I2C-bus

●Auto check on interval scan video signal

●1.8Vand 3.3Vsupplies

● Low gain variation with temperature

●Output format RGB 4:4:4, YUV 4:4:4, YUV 4:2:2 ,CCIR 656 or YUV 4:2:2 semi-planar standard on output

bus

10