LG BS254 Service Manual

Delta Elec. Inc. BS254_BX254_BX324 rev.06
Company Confidential LG ______________________ Delta____________
56
2011/06/16
6-1. ADC Adjust Procedure -- (Optional)
A. Function Description：
ADC Calibration – VGA ：Calibrating Analog RGB signal
ADC Calibration – YUV ：Calibrating YUV signal
Calibration Status ：Status of VGA and YUV calibrated value
B. Calibrate Analog RGB (1024 x 768 @ 60Hz XGA), (800 x 600 @ 60Hz SVGA):
Step 1： In Service Mode select ADC Calibration - VGA In this menu input pattern with
White(240,240,240) and Black(16,16,16) for calibrate VGA Source . After input ready press
“Enter” or “Right” key to calibration。
Input Pattern
Step 2 : After complete the OSD will show the picture as follow , if not complete, just close the OSD。
Note : Offset & Gain Value
Default After ADC
Offset 511
Gain 511
Step 3 : Compare internal white pattern and RGB source white pattern, if the brightness gap ratio of these two
source is bigger than 3.5%.

LG BS254 Specifications

General

Projection distance	0.129 - 2 m
Projection technology	DLP
Contrast ratio (typical)	2100:1
Screen size compatibility	51 \
Projector native resolution	SVGA (800x600)
Resolution	1280 x 1024 pixels
Aspect ratio	4:3, 16:9
RS-232 ports	1
Dimensions (WxDxH)	260.9 x 186.4 x 71.3 mm
Power requirements	100-240V
Lamp power	180 W
Light source type	Lamp
Service life of light source	2000 h
Service life of light source (economic mode)	3000 h
Focus	Manual
Focal length range	- mm
RMS rated power	1.5 W
DVI port	No
Serial interface type	RS-232
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Component video (YPbPr/YCbCr) in	-
Ethernet LAN (RJ-45) ports	0
Power consumption (standby)	- W
Power consumption (typical)	205 W

Weight and Dimensions

Weight	1910 g