BBK 79 Series User manual

SERVICE MANUAL
CONTENTS
SAFETY PRECAUTION
SPECIFICATION
BLOCK DIAGRAM
CIRCUIT DIAGRAM
FACTORY MODE&ADJUSTMENT
UPGRADE SOFTWAR
TROUBLE SHOOTING
APPENDIX
MODEL
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LEM3279
LEM3289 LEM3279F LEM3289F LEM4079F LEM4289F LEM4289F
82 82 99 107
1366x768 1920х1080 1920х1080 1920х1080
86,58 8
300 300 350 350
1500:1 4000:1 5000:01:00 5000:1
KEY
LED Indicators
Back Panel
Viewing
X 1
X 3
X 1
X 1
X 1
X 1
X 1
X 1
X 1
USB2.0 Host
RCA Jack (Black)
TV 75ohm Aerial
HDMI
RCA Jack(CVBS) -Yellow
Aspect Ratio
Display
Modle
Dimension (см)
Driver Element
Viewing Angle (°)
Contrast
Display Colors
Image In
φ3.5 Earphone Jack
RCA Audio (L/R) Jack -
White/Red
φ3.5 Stereo Jack
D-sub 15 Pin VGA
Connector
Terminals
Front Panel
Viewing
Audio In
VGA In
USB
COAX Output
A-si TFT active matrix
176x176
Audio Output
Standby :Red On:Green
STANDBY,SOURCE, MENU, CH+/CH-, VOL +/-
16:9
16,7 M
Resolution
Response time (ms)
Brightness (cd/m2)
178x178
,5
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2X8W
Yes
Yes
Yes
Yes
OSD Language
Color Systems VGA 1366х768
HDMI
65 50 70 80
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Audio
Output Power (1 KHz 10% THD )
NICAM / STEREO
Bass
Treble
PAL, SECAM, NTSC 3.58, NTSC 4.43, PAL60
DVI-HDMI: RGB/60 Hz 640x480 800x600 1024x768
HDMI-HDMI: YUV/50 Hz 576p 720p 1080i 1080p;
YUV/60 Hz 480i 480p 720p 1080i 1080p
1920х1080
Balance
Russian , English
Video Inputs
Supported
Resolutions Video Inputs
~100-240, 50/60
energy
consumption Input voltage (V, Hz)
Power Consumption (W) IIProtection class against electric shock
Temperature
requirements Operating (°, C)
Storage and Transportation (°, +5…+35 -20...+45
Operation (%)
Storage and Transport (%) 10-80 (no condensation) 5-95 (no condensation)
5HPRWH&RQWURO
Color Black
Batteries 1.5V AAA X2
Customer Code 09F6
Requirements
for humidity

Main Board
(Soultion:MST182VG)
AV x 1
Main IC:MST182VG
Demodulator ,Decoder
SCALER,
ADC,Audio/Video Decoder ĂĂ
Power manager
Tuner
(soultion:R620D)
Amplifier
(soultion:MSH9010)
Audio Buffer
Power Supply & LED
Driving Board
Antenna Speaker
Earphone
R/L
RF
12V 5VSTB Back Lihght
ON/OFF
External
Input
HDMI x 3
VGA x 1
PC Audio x 1
USB x 1
Coaxal
IR /Key 2 IN1 Board
PANEL
Display Unit
Back Light Unit
LVDS
R/L
LED+/LED-
AV x 1
Block Diagram for 79 Series