Samsung LE32A Series Installation guide

LCD TV

Tanzanite

TRAINING MANUAL

Agenda

I. Understanding of LCD TV

II. Inside of Tanzanite Model

III. Board description

IV. Disassembly

V. Trouble S ooting

VI. How to Upgrade

VII. Attac ment.

Ⅰ. Understanding of LCD TV

UNDERSTANDING

OF LCD TV

Ⅰ. Understanding of LCD TV

CONTENTS

I. LCD TV advantage

II. Basic theory of LCD PANEL

III. Basic block of LCD TV

IV. Basic block of ain PBA

V. What is scaler?

VI. TV signal types

VII. TV connector types

LCD TV Advantage

Ⅰ. Understanding of LCD TV

Hig S arpness, Resolution

T in and Lig t ( 40 Inc is 5cm t ickness )

Low Power Consumption

Real HDTV

Long Life

Basic Theory Of LCD PANEL

Ⅰ. Understanding of LCD TV

A) B) C)

A) Back Lig t B) TFT C) LCD D) Color Filter

A) Lamp Make Lig t

B) TFT Adjust LCD Array

C) LCD Array can Adjust Lig t amount (Like Camera Iris )

D) Color Filter Make RGB Color

Basic Block of LCD TV

Ⅰ. Understanding of LCD TV

Analog/

Digital

Signal

Digital

Signal

Devel opement Par t

A/D Converter

Graphic Signal Processor

(IMAGE SCALER)

SMPS

Au io

LCD Panel

◆Analog → RF/ VIDEO/ S_VIDEO/ PC ....

◆Digt al → HDMI/ DVI

Basic Block of Main PBA

Ⅰ. Understanding of LCD TV

Bl ock Di agram

( PC )

LCD

PANEL

+5V

+12V

ADC

I MAGE

SCALER

Mi com

Anal og Par t Di gi t al Par t

VI DEO

S- VI DEO

SCART

+3. 3V

LVDS

I nver t er

Au i o Speaker

ADC

Vi deo

Decoder

What is SCALER?

Ⅰ. Understanding of LCD TV

- CRT can display any resolution picture wit out conversion

but LCD and PDP can do only wit scaler

- Accepting input images from multiple sources and displaying

t em on any flat panel display

- Scaler is most important IC in flat panel display

Scaler

1. RF(Radio Frequency)

- 50~900Mz Frequency Domain

- Composite signal+sound signal

2. CVBS(Usually AV)

- Composite video and sound signal

3. Super VHS

- Separate Y and C from composite signal

4. RGB

- Usually use PC, 15pin D-sub

5. Analog Component (Y,Pb,Pr)

- Usually Component

6. Digital Component(Y,Cb,Cr)

7. DVI(Digital Visual Interface)

- Standard from DDWG(Digital Display Working Group)

- TMDS(Transition Minimized Differential Signaling Signal)

8. HDMI(Hig Definition Multimedia Interface)

- DVI+Digital Sound

Signal types

Ⅰ. Understanding of LCD TV

This manual suits for next models

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