ADMIRAL EF4631, LM2LA Schematic
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Title
Date: 4-Dec-2012 Sheet of
File: D:\\MP4618T-TL\
R33
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Title
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Number RevisionSize
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Date: 4-Dec-2012 Sheet of
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File: D:\\MP4618T-TL\
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Title
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Date: 4-Dec-2012 Sheet of
File: D:\\MP4618T-TL\
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LM2LA Service Manual
Issued Date：2013-02-18
Shanghai Kitking Electronic Co. LTD
The information in the specification is subject to change without notice
Shanghai Kitking Electronic Co. limited LM2LA
Content
Item Page
Content 1
Revision History 1
General description 2
Features 3
Function layout 5
PCB dimension 6
Schematic of IR and key board 7
Power supply 8
Interface definition 9
General Precaution 12
Software upgrade steps 13
Board Service Manual 14
Schematic 22
Bill of Materiel 31
Revision History
Version Date Page Author Description
V1.1 2013.02.18 all First issued
The information in the specification is subject to change without notice
1
Shanghai Kitking Electronic Co. limited LM2LA
1. General description
LM2LA is a multi-purpose LED TV control board for South America
market and energy-efficient LED TV control board with dual/single LVDS
interface. It supports LED panel more 23.6" which resolution is up to
1920×1080. It can receive the NTSC analogue television and ISDB-T
digital television.
LM2LA supports ATV, ISDB-T, CC, MTS, USB, 3×HDMI, YPbPr, AV,
PC-RGB signal input, AV signal output.
LM2LA supports extended functions such as External USB, External AV,
External HDMI.
LM2LA USB slot can be used for software updating, PVR and
multimedia playback.
The information in the specification is subject to change without notice
2
Shanghai Kitking Electronic Co. limited LM2LA
2. Features
Chipset
Market Area
OSD
Language
LCD Panel
Video Input
Audio Input
Audio
Output
Power
MSD1306XS
South America
English, Spanish, Portuguese
Type TFT-LCD /LED
Resolution up to 1920*1080
Interface single/dual 8bit or 10bit LVDS
Panel power 5V,12V optional
Receiving Range
AIR:CH2 CH69∽
CABLE: CH1 CH125∽
Input Impedance 75 ohm
Video System PAL, NTSC
ATV
Sound System
Max storage
channels
M
MTS
100
Teletext 1000 pages
Input Impedance 75 ohm
ISDB-T
Modulation DQPSK, QPSK,16QAM,64QAM
Video System MPEG2: MP@ML, MP@HL
Audio System AAC,HE-AAC
AV
Video System PAL/NTSC/SECAM
Video Level 1.0 Vp-p ± 5%
YPbPr 480i,480p,576i,576p,720p,1080i,1080p
HDMI 480i,480p,576i,576p,720p,1080i,1080p
PC-RGB
PC-RGB Earphone Input
AV
YPbPr
Max Output
Power
Power
supply
up to 1920*1080@60Hz
0.2 － 2.0 Vrms
L/R RCA Input
0.2 － 2.0 Vrms
2x8W(8ohm)
24V
Input 5V,12V,5VSTB,24V
Power
Management
Standby Power Consumption <0.3W(board only)
The information in the specification is subject to change without notice
3
Shanghai Kitking Electronic Co. limited LM2LA
TV
HDMI 3 HDMI Terminal
AV 1 RCA Terminal (yellow)
Terminal
USB Multimedia Playback Format
Media File Type
Movie
Music
Photo
Note：Licenses are required for Divx,MPEG-LA,MP3,WMA,AAC and AC3.
Input
Output AV 1 Mini AV Terminal (black)
.avi DivX,Xvid,MPEG-4
.mpg
.dat
.mov/mkv
.mp3 -- MP3
.wma -- WMA
.m4a/.aac -- AAC
.jpg/jpeg
.bmp BMP --
.png
AV & YPbPr - Audio 2 RCA Terminal (white,red)
YPbPr 3 RCA Terminal (green,blue,red)
VGA 1 D-Sub Terminal (blue,15PIN)
VGA Audio 1 Earphone Terminal (green)
USB 1 USB Terminal
MPEG-1,MPEG-2
MPEG-1
Progressive JPEG -Baseline JPEG --
Non-interlaced -Interlaced --
2 F type，75Ω
USB
Video Audio
MP3,WMA,AAC
--
The information in the specification is subject to change without notice
4
Shanghai Kitking Electronic Co. limited LM2LA
3. Function layout
G23A
KEY
& IR
& LED
G21A
Software
Upgrade
Interface
G11A
Main
Board
Power
Supply
G12A
Inverter
Interface
G103
Panel
Power
Select
G202
LVDS
Output
G92A
Speaker
Output
Interface
G91A
AMP
Power
Supply
HDMI1 HDMI2 HDMI3 VGA VGA_AUDIO Y Pb Pr
IN IN IN IN IN IN
AV AV _L AV _R AV CABLE AIR USB
IN IN IN OUT IN IN IN
The information in the specification is subject to change without notice
5
Shanghai Kitking Electronic Co. limited LM2LA
4. PCB dimension
PCB Height = 12mm
PCB Length = 178mm
PCB Width = 115mm
PCB Screw Bore Size : Diameter is 3.5mm
USB
AIR
CABLE
AV_OUT
AV_R
AV_L
AV
HDMI
3-
3-
3HDMI2HDMI1
VGA
VGA AUDIO
PrPbY
The information in the specification is subject to change without notice
6
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