akira LCT-20CVST User manual

LCT TV
Service Manual

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Model No.: LCT-20CVST
Version: 1.0
MODEL:
LCT-20CVST

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Model No.: LCT-20CVST
Version: 1.0
CONTENTS
SPECIFICATION..................................................................................................................................... 4
ADJUSTMENT SPECIFICATION.......................................................................................................... 8
PCB ASSEMBLY FUNCTIONAL DESCRIPTION ............................................................................. 11
BLOCK DIAGRAM .............................................................................................................................. 16
IMPORTANT IC LIST........................................................................................................................... 17
TROUBLE SHOOTING ........................................................................................................................ 18
EXPLODED VIEW................................................................................................................................ 22
PART LIST............................................................................................................................................. 30
CIRCUIT DIAGRAM............................................................................................................................ 32

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Model No.: LCT-20CVST
Version: 1.0
SPECIFICATION
LCD Panel
 LG-Philips LCD Panel : LC201V02-A3
 Active Screen Size : 20.1 inches (584.40m/m) diagonal
 Outline Dimension : 432(H) x 331.5(V) x 25.0(D)mm(Typ)
 Pixel Pitch : 0.6375mm x 0.6375 x RGB
 Pixel Format : 640 horiz. By 480 Vert. Pixels RGB strip arrangement
 Color Depth : 8bit, 16.7M Colors
 Luminance, White : 450 cd/
 Response Time : 25msec (Rise 13ms + Decay 12ms)
 Viewing Angle : R/L 176 Degree, U/D 176 Degree
 Backlight Assembly : 6 CCFL
 Contrast Ratio : 350 : 1
In/Out Jack
 Power Input : AC100 ~ 240V 50 ~ 60Hz
 Antenna Input : 75 Ohm Unbalanced Coaxial Cable
 PC Input : 15 Pin D-sub Jack(Female Type) – RGB Analog Input, Included Main Board
 PC Audio Input : Phone Jack(Stereo) – From PC, Included Main Board
 Video & Audio In/Out – Included Sub Board
- Video Input 1(Composite RCA 3Pin, Included Audio 2Pin)
- Video Input 2(Composite RCA 3Pin, Included Audio 2Pin)
- DVD Input (Y Cb Cr, RCA 3Pin)
- S-Video Input
- EURO Scart Jack
- Headphone Output (Phone Jack, Stereo)
- A/V Output (Scart Jack)

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Model No.: LCT-20CVST
Version: 1.0
User Interface
 7 Panel Key
 Power , Menu , Select , Vol Up , Vol Down , CH Up , CH Down
 3 Color LED
 Red : Stand by Condition
 Green : Power On Condition
 Yellow : SLEEP TIME On Condition
 Remocon Receiver
 Remocon (42Key )
 On Screen Display
 Control using OSD
 OSD Language : English, Arab
 Plug & Play : DDC - 1/2B
 Factory Mode
 Mode for controlling the adjustment item & Panel Option in mass production
Electrical specification
In /Out Items Sub Items Specification
Video 1, 2 Level 1±0.1p_p (75Ω)
Analog RGB 0.7±0.1Vp_p (75Ω)
H Frequency 31KHz
PC
V Frequency 56~85Hz
Y: 1Vp_p
Cb: 0.7Vp_p
DVD Level
Cr: 0.7Vp_p
INPUT
Sound Level 1.4±0.2Vp_p
(0.5Vrms)
A/V OUT Level 2±0.1Vp_p
OUTPUT Sound Speaker RMS 5W*2
Input Voltage AC 90~265 Vac
Input Frequency 47~63Hz
Output 1 Voltage DC 14.5~15.5V
Out Current Min 30mA~Max 2A
Output 2 Voltage DC 10.8~15V
LIPS
Out Current Min 0A~Max2A
POWER
Power Consumption 60W