Hisense LCD3233NEU Manuel utilisateur

Liquid Crystal Display Television

Service Manual

Chassis：MS9

Product Type：LCD3233NEU

Hisense Electric Co.，Ltd.

Note: This Specification is subject to change without notice.

Contents

Contents ...................................................................... 1

Service Manual ................................................................ 2

1. Product Safety Servicing Guidelines........................................ 2

2. Product Function Specifications............................................ 4

2-1 Product Function ..................................................... 4

2-2 Specifications ....................................................... 5

3. Lcd Panel Spec............................................................. 6

3-1 General Description .................................................. 6

3-2 General Features ..................................................... 7

4. Block Diagram.............................................................. 8

4-1 Chassis Block Diagram ................................................. 8

4-2 Signal Processing Part ............................................... 11

4-3 Power Part ........................................................... 12

5. Service Mode And Adjustment............................................... 13

5-1 Service Mode ........................................................ 13

6. Software Updating......................................................... 17

6-1、Updating Tool ....................................................... 17

6-2、Software Updating Operation ......................................... 18

7. Explode View And Bom...................................................... 29

8. Bill Of Materials......................................................... 30

9. Troubleshooting........................................................... 39

10. Ciruit Diagram........................................................... 39

Service Manual

1. Product Safety Servicing Guidelines

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.

The lightning flash with arrowhead symbol, within an

equilateral triangle is intended to alert the user to the

presence of uninsulated dangerous voltage within the products enclosure

that may be of sufficient magnitude to constitute a risk of electric

shock.

The exclamation point within an equilateral triangle is

intended to alert the user to the presence of important

operating and maintenance (servicing) instructions in the literature

accompanying the set.

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 and 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.

Give Name

Note: The above figures are for reference only, please refer to the actual units to determine the

appearances.

1 Menu button : activate OSD menu 2 Source button : activate OSD source select

3 VOL : 4 VOL :

5 CH : 6 CH :

7 POWER indicator 8 Remote sensing window

9 AC Power socket 10 Power switch(standby) 11 Power switch(on/off)

Volume decrease / Left button Volume increase / Right button

Previous channel / Down button Next channel / Up button

7IR angle for the remote control

screen

Source

Picture Sound Zoom

Recall

Mute Still

I/ii

Display

VOL

Hold

Pip Move Sleep

Reveal Mix CancelSubcode

Index Hold

Text

Source Swap

YPBPR

HDMI VGA DIGITAL

AUDIO OUT

COMPONENT IN

VIDEO AUDIO/L AUDIO/R

VIDEO IN

ANT 75

S-VIDEO

YPB/CBPR/CR

AUDIO/L AUDIO/R

SCART1 SCART2

2. P ro d uc t Fu nc ti on a nd S p ec if ic at io n s

2- 1 Pr o du ct F un ct io n

2-2 Specifications

3. LCD Panel Spec

3-1 General Description

LCD3233NEU’S LCD Panel is a 32”TFT Liquid Crystal Display module

with 16-CCFL Backlight unit and 1ch-LVDS interface. This module supports

1366 x 768 WXGA format and can display true 16.7M colors (8-bit colors).

The inverter module for backlight is built-in.

FEATURES

- High brightness (500 nits)

- Ultra-high contrast ratio (800:1)

- Faster response time (gray to gray average 6.5ms)

- High color saturation NTSC 75%

- Ultra wide viewing angle: 176(H)/176(V) (CR>20) with Super MVA

technology

- DE (Data Enable) only mode

- LVDS (Low Voltage Differential Signaling) interface

- 180 degree rotation display (option)

- Color reproduction (nature color)

3-2 General Features

4. Block Diagram

4-1 Chassis Block Diagram

POWER BOARD

MAIN BOARD

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