Hisense LCD3733EU Manuale utente

LCD TV

Service Manual

Chassis：MS9

Product Type：LCD3733EU

LCD4033NEU

LCD4233EU

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Contents

Contents ..................................................................................................................2

1. Product Safety Servicing Guidelines ..................................................................3

2. Product Function Specifications.........................................................................5

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

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

3-2 General Features ......................................................................................6

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

4-1 Main board ..................................................................................................8

4-2 Power board of LCD3733EU .......................................................................9

4-3 Power board of LCD4033NEU/LCD4233EU ...............................................9

5. Service Mode And Adjustment .........................................................................10

6. Software Updating............................................................................................13

6-1、Updating Tool .........................................................................................13

6-2、Software Updating Operation................................................................14

7. Bill Of Materials.................................................................................................24

8. Troubleshooting................................................................................................29

9. Ciruit Diagram...................................................................................................29

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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.

5. Connection wires must be kept away from components with high voltage or

high temperature.

6. 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.

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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.

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2 Product Function Specifications

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3. LCD Panel Spec

3-1 General Description

LCD3733EU、LCD4033NEU、LCD4233EU’S LCD Panel is a TFT LCD module

with 18-EEFL 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.

3-2 General Features

LCD3733EU:

LCD4033NEU:

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LCD4233EU:

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4. Block Diagram

4-1 Main board

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4-2 Power board of LCD3733EU

4-3 Power board of LCD4033NEU/LCD4233EU

POWER BOARD

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- 10 -

5. Service Mode And Adjustment

Use the remote control, first open MAIN MENU with MENU button, and

choose SOUND with the CHANNEL UP/DOWN button, then choose the

BALANCE with VOLUME UP, while Balance value is 0, press 0、5、3、2,you

can enter factory menu.

Fac. Menu

LOGO

NULL

WELCOME

Auto Calibration

Auto Color

ColorTemp. Standard

RED COLOR 137

GREEN COLOR 140

BLUE COLOR 138

White Balance

RDRV 10

GDRV 10

BDRV 10

RCUT 137

GCUT 140

BCUT 138

BRIGHT_H 80

CONTRAST _H 80

BRIGHT_L 40

CONTRAST_L 40

Factory Menu

White Balance

Auto Test

Auto Calibration

LOGO

OSD Language

Country

Option

Factory Init

Test Pattern

Version:

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