BBK LEM1968DT Manual de usuario

SERVICE MANUAL

MODEL

CONTENTS

SAFETY PRECAUTION

SPECIFICATION

BLOCK DIAGRAM

CIRCUIT DIAGRAM

FACTORY MODE&ADJUSTMENT

UPGRADE SOFTWAR

TROUBLE SHOOTING

APPENDIX

（ＳＯＵＲＴＩＯＮＭＳＤ３０９）

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Model

Solution

Antenna Impedance

Power Supply

Terminals

ATV System

Video System

Sound System

7MHz/8MHz

MPEG-2, MPEG-4,H.264 video decoding

Touch KEY STANDBY,SOURCE, MENU, CH+/CH-, VOL +/-

LED Indicators

Number Of Preset Channels

COAXIAL,HDMI,VGA,RF,PC Audio IN

Red :Standby Green :On

Tuner Band Standard system with hyper band

Auto Channel Scanning Yes

Picture I.F. 38.90MHz （BG,DK,I）

MSD309

FS With PLL

LEM1968DT / LEM2268FDT / LEM2468FDT

Sound I.F. 33.40 (BG)

32.40MHz(DK,L)

32.90MHz(I)

PAL BG/DK/ I SECAM BG/DK/L

48.25~863.25 MHz

Tuning System

100

75 Ohm Unbalanced

Power supply: AC 100V-240V, 50/60Hz

DTV System

COFDM 2K/8K QPSK, 16QAM, 64QAMDVB-T:

Bandwidth

Receiving VHF (174MHz – 230MHz) UHF (474MHz - 862MHz)

MPEG Audio,Dolby Digital

Front Panel Viewing

USB2.0 Socket

Back Panel Viewing

ＰｒｏｄｕｃｔＳｐｅｃｉｆｉｃａｔｉｏｎ

Side Viewing

X 1

X 2

X 1

2.5W

Yes

OSD Language

INNOLUX

MT185GW0

18.5”

LED

0.3mm (H) x

0.3mm(V)

1366

768

LM215WF4

21.6”

USB USB2.0 Host

SCART Full SCART

Terminals

Audio Output φ3.5 Earphone Jack

Horizontal (dots)

Vertical (Lines)Resolution

Audio

Output Power (1 KHz 10% THD )

NICAM / STEREO

Bass

Treble

Balance

Russian , English

LEM1968DT

Brand

Model

Size

Backlight

Pixel Pitch

TV 75ohm Aerial

Image In

RCA Jack (Black) optional

COAX Output

VGA In D-sub 15 Pin VGA Connector

HDMI Connector

RCA Jack(CVBS) -Yellow

Audio In RCA Audio (L/R) Jack - White/Red

φ3.5 Stereo Jack

LCD Panel

（Only For Reference,

Parameters according to

panel model）

Brand

Model

Size

LED

0.248 mm x

0.248mm

1920

1080

LM230WF5

23.6”

LED

0.265 mm x

0.265mm

1920

1080

1920

1080

Speaker x2pcs

45W Max

≦1W

Note: Specifications are subject to change without notice

Backlight

Pixel Pitch

Resolution Horizontal (dots)

Brand

Horizontal (dots) (Max)

Vertical (Lines) (Max)

4 Ohm /5W

Resolution Horizontal (dots)

Vertical (Lines)

Power Consumption

Vertical (Lines)

LEM468FDT

On working

Standby

Support

Resolution(For PC)

Color Black

Remote Control

09F6Customer Code

Remark RC2252

1.5V AAA X2Batteries

LCD Panel

（Only For

Reference,

Parameters according

to panel model）

Pixel Pitch

LEM2268FDT

Model

Size

Backlight

MSD309PX

Demodulator ,Decoder,

SCALER,ADC,Audio/Vid

eo Decoder ……

Headp

hone

Headphone

jack

LCD Panel

Speaker

serial

Flash

L/R

Antenna

VGA

Audio

HD I

30PIN 2.0mm

LVDS jack

TDA1517

Amplifier

12V

Power manage

DC/DC & LDO

3.3V

1.2V

1.8V

RGB

Power odule

USB

CVBS&

R/L

MAX3543 DDR 1 DDR 2

CVBS&R/L

Scart

ＢｌｏｃｋＤｉａｇｒａｍ

L0M05(00)_20110815.sch-1 - Mon Sep 19 10:58:10 2011

L0M05(00)_20110815.sch-2 - Mon Sep 19 10:58:15 2011

L0M05(00)_20110815.sch-3 - Mon Sep 19 10:58:53 2011

L0M05(00)_20110815.sch-4 - Mon Sep 19 10:58:56 2011

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