Samsung LE32A Series Installation guide

LCD TV
Tanzanite
TRAINING MANUAL

Agenda
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
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)
D)
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 )
P
O
W
E
R
LCD
PANEL
+5V
+12V
ADC
I MAGE
SCALER
Mi com
Anal og Par t Di gi t al Par t
RF
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