Hitachi L32S02A Manual de usuario

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

LCD Television

May 2008 Digital Media Systems Group, Hitachi Asia Ltd.

Caution

Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury harmful radiation

and materials, various measures are provided in this Hitachi LCD TV.

Be sure to read the cautionary items described in the manual to maintain safety before servicing.

Service warning

1. Do not attempt to modify this product in any way and never perform customized installations without manu-

facturer's approval. Unauthorized modifications will not only void the warranty, but may lead to your being

liable for any resulting property damage or user injury.

Service work should be performed only after you are thoroughly familiar with all of the following safety che-

cks and servicing guidelines. To do otherwise, increase the risk of potential hazards and injury to the user.

While servicing, use an isolation transformer for protection from A.C. line shock.

Contents

* SAFETY NOTICE................................................... 2

*PRODUCT SPECIFICATIONS................................ 3

*FUNCTION OVERVIEW....................................... 4-7

*PCB DIAGRAMS...........................................................8-9

*BLOCK DIAGRAM................................................10

* SCHEMATIC DIAGRAMS.....................................11-24

*IC BLOCK DIAGRAMS.....................................25-30

*TROUBLESHOOTING.........................................31-33.

*REPLACEMENT PART LIST.............................................34

*PART LIST (FOR REFERENCE ONLY)..................35-44

No. 0025E

L32S02A L32A02A

L32S02A, L32A02A,

L32E200, L32R200,

L32E100S,

L32E101B, L32R100

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Safety Notice

-2-

Please read this page before repair the TV.

The following safety precautions are designed to help you stay safe and prevent accidents during the repair

work.

Please take note of these cautionary flags.

Warning

This means "Potential to sustain injury or even death."

Caution

This means "Potential to sustain breakage or irreparable damage."

Also note these cautionary icons

This means "CAUTION" This means "MUST"

This means "POTENTIAL ELECTRIC

SHOCK"

WARNING

Follow instructions.

Must use same types of wires and components.The cabinet, chassis, and labels are parts

that require attention. You must follow the

caution notes and safety instructions

presented throughout this User Manual to

prevent damage to them or injury to

yourself.

Prevent electric shock.

The TV uses special tubes and tapes

made from insulated materials. Moreover,

some materials are kept from making

contact with the PWB for the sake of

safety.Internal leads are kept from hot

parts or high voltage parts by means of

clamps or other measures. As such, you

must restored these parts to their original

conditions in order to prevent electric

shock or fire.

Perform safety check when done.

Exercise caution while working on the

device as the TV contains high voltage

parts and power supply.It is possible to

sustain severe injury or death if you

accidentally touch the wrong parts.You

must disconnect the power supply while

servicing, reassembling, or change parts.

If you touch a live connection it is possible

to sustain severe injury or death.

Use recommended components.

Every part (such as removed screws,

components, and wiring) must be

restored to their prior conditions after

servicing.Be sure to check everything

that was repaired for damage or

mistakes.

Use only the recommended components

or componentst that structurally identical

to the originals. This is to ensure safety

and reliability. Pay special attention to

parts in the parts list and circuit diagrams

marked with . If you use

non-recommended components, then

electric shock or fire may result.

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Specication

-3-

emaNledoM

W01+W01tuptuOoiduA

Terminals AV1 VIDEO IN, L/R AUDIO IN

AV2 COMPONENT IN, S-VIDEO IN, L/R AUDIO IN

AV3 COMPONENT IN, L/R AUDIO IN

AV4 VIDEO IN, L/R AUDIO IN

HDMI1 HDMI IN

HDMI2 HDMI IN

RGB RGB IN, L/R AUDIO IN

OUTPUT VIDEO OUT, L/R AUDIO OUT

HEADPHONE L/R AUDIO OUT

Input Signals RF PAL B/G, D/K, I, H

SECAM B/G, D/K, K1

NTSC M

Video PAL, SECAM, NTSC3.58, PAL N, PAL M

Component 480i/p, 576i/p, 720p(50/60), 1080i(50/60)

HDMI 480i/p, 576i/p, 720p(50/60), 1080i(50/60), 1080p(24/50/60)

Analogue RGB VGA - WXGA

L32A02A, L32S02A, L32E200, L32R200, L32E100S, L32E101B, L32R100

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Function Overview

-4-

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Rear Panel

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Function Overview

-5-

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Function Overview

-6-

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NOTE

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Connections

-7-

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NOTE

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Main PCB Top/Bottom Layer

-8-

Main PCB top layer

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Main PCB Top/Bottom Layer

-9-

Main PCB bottom layer

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Chassis Block Diagram

-10-

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