Hyundai hlt3220 schematic

COLOR TFT-LCD TV SERVICE MANUAL

MODEL : HLT-3220

CAUTION !!

BEFORE SERVICING THE TFT-LCD TV, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

SERVICE MANUAL

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SAFETY PRECAUTIONS

!! Important Safety Notice !!

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug of the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS, which is, corresponds to 0.5mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

SERVICE MANUAL

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SERVICING PRECAUTIONS

CAUTION!!

Before servicing receivers covered by this service manual, read and follow the SAFETY PRECAUTIONS on page 2 of this publication.

General Servicing Precautions

1.Always unplug the receiver AC power cord from AC power source before;

ⓐRemoving or reinstalling any component, circuit board module or any other receiver assembly. ⓑDisconnecting or reconnecting any receiver electrical plug or other electrical connection. ⓒConnecting a test substitute in parallel with an electrolytic capacitor in the receiver.

CAUTION!! A wrong part substitution or incorrect polarity installation of electrolytic capacitors

may result in an explosion harzard.

2.Do not spray chemicals on or near this receiver or any of its assemblies.

3.Do not defect any plug/socket voltage interlocks with which receivers covered by this service manual might be equipped.

4.Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead. Always remove the test receiver ground lead last.

5.Do not connect the test fixture ground strap to power supply heatsink in this receiver

Electrostatically Sensitive(ES) Devices

Some semiconductor(solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive(ES) Device.Examples

Circuit Board Foil Repair

Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil th separate from or “lift-off” the board. The following guidelines and procedures should be flollowed whenever this condition is encountered.

At IC Connections

To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board.(Use this technique only on IC connections.)

1.Carefully remove the damaged copper pattern with a sharp knife.(Remove only as much copper as absolutely necessary.)

2.Carefully scratch away the solder resist and acrylic coating(if used) from the end of the remaining coopper pattern.

3.Bend a small “U” in one end of a small guage jumper wire and carefully crimp it around the IC pin.

4.Route the jumper wire along the path of the out-away copper pattern and let it overlap the previously scraped end of the good copper pattern. Solder the overlapped area and clip off any excess jumper wire.

SERVICE MANUAL

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CONTENTS

Safety precautions ----------------------------------------------------------- 2

Servicing precautions ------------------------------------------------------- 3

Contents ------------------------------------------------------------------------- 4

Specifications ----------------------------------------------------------------- 5

Location of control ---------------------------------------------------------- 9

Deassembly procedure ---------------------------------------------------- 12

Mechanical exploded view with part list ----------------------------- 17

Circuit descriptions --------------------------------------------------------- 18

Trouble shooting ------------------------------------------------------------- 51

Wire dressing ----------------------------------------------------------------- 56

Adjustment instruction with SVC mode ------------------------------ 58

Inspection instruction ------------------------------------------------------ 61

PCB Layout --------------------------------------------------------------------- 63

Part appearance -------------------------------------------------------------- 68

Packing instruction ---------------------------------------------------------- 71

Replacement part list -------------------------------------------------------- 73

Block diagram ---------------------------------------------------------------- 83

Connection diagram -------------------------------------------------------- 84

Schemetic diagram --------------------------------------------------------- 85

Wave form --------------------------------------------------------------------- 86

SERVICE MANUAL

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SPECIFICATIONS

Note: Specifications and others are subject to change without notice for improvement.

1.Scope.

This document is the specification of 32” TFT-LCD Color TV.

2.Power

1) Power requirement 150W

2) AC / DC SMPS

Input Frequency : 50 / 60㎐

Input Voltage: AC 100V- 240V 2.5A ~1.5A Output Voltage: DC 12V, 24V

3) Power cord

Use UL listed and CSA certified detachable power cord type; SVT, 3-conductors, 18AWG For AC 120V area. Use VDE listed detachable power cord type; HO5VV-F, 3-conductors,

18AWG for AC 220～240V area.

3.Tuning system

FVS 100 Program

4.Sound output

10W+10Wrms Stereo (Max)

5.Antenna input impedance

VHF / UHF at 75ohm

6.OSD Type (On Screen Display)

Windows type (Center)

7.External in/output

DVI-INPUT,S-VIDEO INPUT,HEADPHONE OUTPUT,ANALOG PC INPUT,PC AUDIO INPUT, SCART INPUT,SUB WOOFER OUTPUT,AV OUTPUT,ANTENNA INPUT

8. Function

CATV/Hyper band Auto Program Manual Program Auto Sleep Quick view ACMS(Auto channel Memory System) PSM(Picture Status memory) SSM(Sound Status memory)

PIP(PICTURE IN RICTURE)

ARC(ASPECT RATIO CONTROL)

SERVICE MANUAL

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9.Receiving RF TV system

Model System 1 PAL-B 2 PAL-G 3 PAL-I, I /I 4 PAL-D 5 PAL-K 6 SECAM-B 7 SECAM-G 8 SECAM-D 9 SECAM-K

10 SECAM-K1 11 SECAM-I (6.0) 12 NTSC-3.58 / 4.5 13 NTSC-3.58 / 5.5 14 NTSC-3.58 / 6.0 15 NTSC-3.58 / 6.5 16 NTSC-3.58 / 4.5(5.0) 17 NTSC-4.43 / 5.5 18 NTSC-4.43 / 6.0 19 NTSC-4.43 / 6.5 20 PAL 5.5 / 60Hz 21 PAL 6.0 / 60Hz 22 PAL 6.5 / 60Hz 23 SECAM 5.5 / 60Hz 24 SECAM 6.0 / 60Hz 25 SECAM 6.5 / 60Hz 26 SECAM L / L' X

TOTAL SYSTEM 25

SPECIFICATIONS

HLT-3220 / /

○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ / ○/ /

// //

SERVICE MANUAL

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SPECIFICATIONS

11. PC Mode Scan Frequency & Timing

1) Scan Freq: H: 15 ～ 110 kHz / V: 56 ～ 75㎐

2) Preset Timing Chart

Mode Resolution H-Freq(KHz) V-Freq(KHz)

VGA

SVGA

XGA

640x480 640x480 640x480 720x400 800x600 800x600 800x600

800x600 1024x768 1024x768 1024x768

31.5KHz

37.9KHz

37.5KHz

31.5KHz

35.1KHz

37.9KHz

48.1KHz

46.9KHz

48.4KHz

56.5KHz

60.2KHz

60Hz 72Hz 75Hz 70Hz 56Hz 60Hz 72Hz 75Hz 60Hz 70Hz 75Hz

WXGA

1280x768 47.7KHZ 60Hz

Note!! :

ⓐ If the set is cold, there may be a small “flicker” when the set is switched on. This is

Normal, there is nothing wrong with the set.

ⓑ if possible, use the VESA 1024 x 768@60HZ video mode to obtain the best image

quality for your LCD monitor. If used under the other resolutions, some scaled or processed pictures may appear on the screen.

SERVICE MANUAL

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SPECIFICATIONS

13. TFT – LCD Panel Character

1) Feature

Size : 32.0 inches diagonal

LCD Type : a-si TFT Active MatriX

Pixel Pitch : 0.51075mm (H) x 0.51075mm(V) x RGB

Pixel Format : 1366 horiz. By 768 vert. Pixels RGB strip arrangement

Active Video Area : 697.6845mm (H) x 392.256mm (V)

Surface treatment : Anti-glare with anti-reflective coating Hard coating (3H)

Response Time (Typ) : Rising Time : 16ms(TYp), Falling Time : 8ms (Typ)

Viewing Angle<CR≥10> : Hor [Left/Right] Æ 85Deg (Typ) / 85Deg (Typ),

Ver [High (Top)/Low (Bottom)] Æ 85Deg (Typ) / 85Deg (Typ)

Luminance(Typ) : 450 cd/㎡(Typ)

Contrast Ratio (Typ) : 1000(Typ)

Display Color : 16.7M Color

Back Light : 16 CCFL

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LOCATION OF CONTROL

All the function can be controlled with the remote controller. Some functions can also adjusted with the buttons on the controls on the TV front panel.

1-1. Remote controller Note !! : Before you use the remote controller, please install the batteries.

1.POWER:

Turns the TV on from standby or off to standby mode.

2.MUTE:

Turns the sound on and off

3.NUMBER buttons:

Select channel numbers.

4.PSM (Picture Status Memory):

Recalls your preferred picture setting.

5.SSM (Sound Status Memory):

Recalls your preferred sound setting.

6. I / II:

Selects the language during dual language broadcast. / Selects the sound output.

7.MENU:

Displays a main menu.

8.TV / AV:

Selects input signal source. / Clears the menu from the screen.

9.SLEEP:

Sets the sleep timer.

10.TV / PC :

Selects TV or PC mode directly.

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LOCATION OF CONTROL

1-2. Remote controller Note !! : Before you use the remote controller, please install the batteries.

11.PR ▲▼ ( Programme Up/Down):

Selects a next programme or a menu item.

12.VOL ◀▶ ( Volume Up/Down):

Adjusts the sound level or a menu Setting.

13.OK

Accepts your selection or displays the current mode.

14. TELETEXT Buttons:

These buttons are used for TELETEXT. For further details, see the TELETEXT Selection

15. Q.VIEW

Returns to the previously viewed Programme

Note: TELETEXT mode. The Q.VIEW button is used for TELETEXT function.

16. LIST

Displays the program list menu.

17. PIP

Display a PIP (Picture In Picture) screen.

18. ARC

Selects a screen mode – 16:9, 14:9, ZOOM, 1:1 and auto Wide.

19. INPUT

Selects the AV source of sub picture in PIP mode.

20. POSITION

Selects a position of PIP screen.

21. SWAP

Switches a main picture for sub picture in PIP mode.

22. MODE

Selects a PIP screen mode – 16:1,9:1,double window and scan mode

23.▲PR▼

Selects a programme when RF signal is displayed in PIP mode.

SERVICE MANUAL

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LOCATION OF CONTROL

Controller of Panel

1. ON/OFF Switch TV set on or off.

2. MENU

Displays a menu.

3. + PR – ( programme Up/Down)

Selects a programme or a menu item.

4. + VOL – (Volume Up/Down)

Adjusts the volume./ Adjusts menu settings.

5. TV/AV Selects TV, SCART1, SCART2, S-VIDEO, PC-ANALOG or PC-DIGITAL mode./Clears the menu from the screen.

6. Power Indicator

Llluminates in red when the TV is in standby mode / llluminates in green when the TV is switched on.llluminates in blinked when the power save mode(only PC mode)

7. Remote control sensor

Accepts the IR signal of remote controller

< SIDE VIEW>

SERVICE MANUAL

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1. Disassembly procedure

1).Back cover

DISASSEMBLY PROCEDURE

Remove 4 screws

Removal of Stand

Remove 16 screws

SERVICE MANUAL

Removal of Backcover

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DISASSEMBLY PROCEDURE

2).Metal plate & Rear chassis

Removal of rear metal chassis...

Remove 5 screws

1. Remove 2 screws

2. Slide away the metal plate

Removal of Terminal metal plate

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DISASSEMBLY PROCEDURE

3).Main PWB & Connectors

Remove 4 Main PCB screws

Remove 4 Main PCB

Removal of Main P CB

Removal of Main PCB

Remove7 connectors

Removal of Main PCB

SERVICE MANUAL

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4).LCD Panel chassis

Remove 11 screws, then take off bracket

DISASSEMBLY PROCEDURE

Remove 7 screws, then take off bracket

5-1 ) LCD Module

Remove 3 brackets, then lift out LCD Module

(move all wire looms away which are attached to the module)

Removal of LCD Module bracket

Remove10 screw

Removal of LCD Panel module mounting brackets

SERVICE MANUAL

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5-2). LCD Moul

DISASSEMBLY PROCEDURE

SERVICE MANUAL

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MECHANICAL EXPLODED VIEW

1. Explode View

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NO PART NO DESCRIP TI O N MAT ERKAL COL O R F INIS H Q 'TY

1 - DECO FRO NT PM MA BLACK 1

2 610-006A SPEAKER

3 610-006B SPEAKER

4 400-021F FRONT COVER PC+ABS SILVER,BLACK 1

5 408-002F LENS SENSOR PC TRANSPARENCE 1

6IR PCB--1

AY COLT 32A01C

7CONTROL PCB--1

8 404-004B BLOCK KNOB ABS SILIVER 1

9 - CONTROL PLATE AL SILIVER 1

10 407-001E F IX BR KT EG I - 2

11 PANV320W2L01 PANEL SAMSUNG - 1

12 407-005F BRK T L, R EG I - 2

13 407-001Z LCD BR KT E G I - 1

14 620-005D A/C, D/C ADAPTER - - 1

15 - MAIN PCB ASS'Y - - 1

16 - JACK SHIELD SPTH - 1

17 407-002L R EA R SH IE LD EG I - 1

18 407-003F BACK COVER PC+ABS DARK GRAY 1

19 - REAR PLATE PVC BLACK 1

20 401-0032 BO TT OM B RKT EG I - 1

21 450-001Y DE CO STA ND P MMA BLA CK 1

22 402-004W ST AND BO TT O M AB S SI LVE R 1

23 402-004C ST AND FRONT ABS DARK GRAY 1

24 401-0016 S TAND BRK T E G I - 1

25 402-004D STAND REAR ABS DARK GRAY 1

26 410-001Q BT B 4*12 47

27 410-001K TT B 3*8 8

28 410-001L TT B 3*10 5

29 410-003R PB TB 4*10 4

30 410-002R PP 4*12 4

31 410-001R PB 4*8 10

32 410-001N FT B 3*6 2 0

33 410-002Q P S 4*10 SNI 3

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SCREW TAPPING

SCREW MACHINE

10W

Ω

-2

SZN

5 6

MATERIAL DATA

THIS ENGR

TREAT MENT GHK

MO DEL APPD SCALE S HEET

LT32G - 1 / 2

20 21

2004. 12. 27

D. H. KIM

Description

Screw point

TITLE

SET Exploded Draw ing

DRAWING NO.

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SERVICE MANUAL

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CIRCUIT DESCRIPTIONS

General Description for 32.0” color TFT LCD TV.

The TFT LCD TV described in the followings is based on a Multi TV system, digital Control display, 32.0” diagonal. The TFT LCD TV is intended to be a finished product, Basically a display device mounted inside an enclosure which will provide the safety Requirements. With the exception of LCD Panel, the display device shall be composed entirely of solid state components. These components shall have a history of reliable service in identity applications and shall be applied in the circuits.

1. SCALER SECTION.

2. MCU SECTION.

3. ADC SECTION.

4. VIDEO PROCESSOR SECTION.

5. AUDIO PROCESSOR SECTION.

NOTE: ROM is two types, To development early stage it used the EEPROM – AT29C020 The production used the OTP (EPROM – M27X201)

It follows in the ROM and the point which is changed

Apply ROM

AT29C020 (flash) IC01 L17 L15 600ohm BEAD

M27X201 (OTP) IC01 L15 L17 600ohm DEAD

LOCATION NO

PART Insert PART Remove Description

SERVICE MANUAL

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CIRCUIT DESCRIPTIONS

1.SCALER SECTION.

Device: MX88L285

Features: Advanced Image Scaling/ processing

Automatic Image Optimization Frame buffer interface Microprocessor interface On-screen display Color processing 8-bit display outputs

Main/Sub – input ports

1) Description The highly flexible MX88L285 is the mixed-signal product from the display processors.

MX88L285 is a highly integrated display processor with advanced digital signal processing. MX88L285 provides high design scalability by accepting input images from multiple Sources and displaying them on any flat panel display. For the conversion of VGA input signals to higher-resolution outputs, the MX88L285 uses a Smart-scaling TM -3 filter scaling algorithm that accepts programmable parameters for horizontal and vertical scaling. The MX88L285 scaling engine allows text and graphics images to be handled appropriately with different scaling algorithms. Image centering is supported for applications where image manipulation is not needed. The MX88L285 flexible SDRAM/SGRAM interface is designed to support VGA to WXGA resolution panels to provide a cost-effective solution.

Fabricated in an advanced CMOS process, the MX88L285 is provided in a space-saving –388-lead PBGA surface-mount plastic package.

2) Block Diagram.

SERVICE MANUAL

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