LG BS254 User manual

Delta Elec. Inc. BS254 & BX254 & BX324 rev.06
Company Confidential LGE_______________________ Delta____________
1 2011/06/16
DATA PROJECTOR
BS254 & BX254 & BX324
SERVICE MANUAL

Delta Elec. Inc. BS254 & BX254 & BX324 rev.06
Company Confidential LGE_______________________ Delta____________
2 2011/06/16
CONTENTS
1.COMPLIANCE OF SAFE REPAIR.........................................................................................4
1-1.Caution During DisassemblingAnd Assembling.............................................................4
1-2.Lamp.............................................................................................................................. 4
1-3.Lens................................................................................................................................4
2.SPECIFICATIONS.................................................................................................................5
2-1.Summary Specifications................................................................................................. 5
2-2.I/O Ports Illustration........................................................................................................7
2-3.Top view-on screen Display (OSD) buttons and LEDS……………………………..…….. 8
2-4. Rear view……………………………………………………..…………………..………….10
2-5. Bottom view…………………………………………………………………………………..11
2-6. Remote Control Parts………………………………………………...………………….….12
2-7. Inserting the Remote Control Batteries……………………………………………………14
2-8. Block Diagram…...................................….................................................................. 15
3.TROUBLE SHOOTING....................................................................................................... 16
4.DISASSEMBLYAND ASSEMBLY....................................................................................... 24
5.Flash Upgrade Flow........................................................................................................... 37
5-1. Projector RS-232 Drivers Installation Guide…………………………..………………….37
5-2. DLP Projector Flash-Tool (firmware) User Guide…………………...……….…………..42
5-3. Started with Download…………………………………….……..………………………....43
5-4.Starting and Shutting down the Projector……………………………………………….....49
5-5.Setting an Access Password (Security Lock)………………………………….…………..51
5-6.Factroy Reset……………….……………………………………………………………..…53
5-7. Status…………………………………………………………………….…………………...54
6. Calibration…………………………………………………………………………………...…….55
7. Color Border Adjustment………………………………………………………………………...59
8. Projection Lamp…………………………………………………………………………………..60
9. Cleaning………………………………………………………………..………………..………...64
10.SERVICE NOTE............................................................................................................... 65
10-1.Cleaning..................................................................................................................... 65
10-2.Inserting the Remote Control Batteries...................................................................... 66
10-3.Power & READY LED Blink Code Message.............................................................. 67
10-4.Factory Preset Display Modes................................................................................... 68

Delta Elec. Inc. BS254 & BX254 & BX324 rev.06
Company Confidential LGE_______________________ Delta____________
3 2011/06/16
10-5.Projection Distance……………………………………………………………………..…..70
11.EDID data …..................................................................................................................... 71
12.RS232…………………………….……………………………………………….………………75
13.Spare part list ....................................................................................................................84
Revision
Description Date
rev.00 Preliminary 12/21/2009
rev.01 Updated the spare part list (Pg80), change 3392132902 to 339213290
3;
change 3534117300 to 3534117301 01/20/2010
rev.02 Updated the spare part list (page85), add the speaker in the list 05/17/2010
rev.03 Page86, Item8 and item9, change the photo position 07/07/2010
rev.04 Page84, Item9, change the part number from 3622403511 to 3622404311,
LG P/N no change. 12/01/2010
rev.05 Page84, item17, change the LVPS Board P/N from EBT61018601 to
EBT61018602 04/07/2011
rev.06 Page85, add two new items (DMD chip), one is
COV30816101, and the
other is COV30816201, and updated the photos on the page87 6/16/2011

Delta Elec. Inc. BS254 & BX254 & BX324 rev.06
Company Confidential LGE_______________________ Delta____________
4 2011/06/16
1. COMPLIANCE OF SAFE REPAIR
Be sure to read this Service Manual before providing services. In the projector, full
consideration is taken to ensure safety for fire, electric shock, injury, harmful radiation, and
substance. Therefore, observe the notice described in this Service Manual so that safety is
kept when providing services. Moreover, be sure to observe the notice described in the
Instruction Manual.
Pay attention to the following items during service inspection.
1.1 Cautions during disassembling and assembling
1. This equipment contains parts under high voltage. When making repairs, etc.
Be sure to pull out the power plug beforehand to insure safety.
2. Parts may be very hot immediately after use.
Make sure the equipment has cooled off sufficiently before carrying out repairs.
3. Make sure that parts and screws and wiring, etc. are returned to their original positions.
Tube, tape and other insulation materials have been used for safety reasons.
The internal wiring has been designed to avoid direct contact with hot parts or parts under
high voltage when using clamps or other tools.
4. The parts used in this device have special safety features such as flame-resistance and
anti-voltage properties. When replacing parts, always use parts supplied from the factory.
5. After finishing operations make sure that all parts and wires have been returned to their
original position and that there has been no deterioration of the area around the location that
was worked on.
6. Be sure to use a grounding strap (wrist band) during repair and inspection.
1.2 Lamp
During current conduction, the lamp is in the high-temperature state. In this case, pay
careful attention because a high voltage is used. When replacing a lamp, replace it after
confirming that the lamp has gotten cold sufficiently.
1.3 Lens

Delta Elec. Inc. BS254 & BX254 & BX324 rev.06
Company Confidential LGE_______________________ Delta____________
5 2011/06/16
Do not look into a lens during projection. This damages your eyes.
2. Specifications
2-1. Summary Specifications
Model BS254 BX254 BX324
Display type TIDMD0.55-inch SVGA TI DMD 0.55-inch XGA
Resolution SVGA 800x600 Native
XGA 1024x768 Native
Projection distance 1 meters ~ 10 meters
Projection screen size 36 to 243 inch (can overdrive 300”)
Projection lens Manual focus / Manual zoom
Zoom ratio 1.1
Vertical keystone
correction +/- 15 degrees
Projection methods Front, Rear, Desktop/Ceiling (Rear, Front)
Data compatibility IBM PC or compatibles (VGA, SVGA, XGA, SXGA, UXGA), Mac
SDTV/EDTV/ HDTV 480i, 576i, 480p, 576p, 720p, 1080i, 1080p
Video compatibility NTSC, PAL , SECAM
H-Sync 15, 30 – 91.4 KHz
V-Sync 43 - 87 Hz
Safety certification FCC-B, UL, cUL, TUV, CB, CE, PCT, SASO, NOM, KC and CCC
Operation temperature 5°~ 35°C
Dimensions 261 mm (W) x 78 mm (H) x 190 mm (D)
WEIGHT 4.1 lbs 4.0 lbs
AC Input AC Universal 100 ~ 240, Typical @ 110 VAC (100~240)/±10%
Power consumption Typical 230W (standard mode);
Typical 205W (ECO mode)
Typical 300W (standard mode);
Typical 230W (ECO mode)
Stand By < 1 watts
Lamp Normal Mode: 180W;
Eco Mode: 160W
Normal Mode: 240W;
Eco Mode: 180W
Audio speaker 1.5W mono speaker
PC RGB
Composite video (RCA X 1)
Video S-Video (Mini-DIN)

Delta Elec. Inc. BS254 & BX254 & BX324 rev.06
Company Confidential LGE_______________________ Delta____________
6 2011/06/16
Audio IN 3.5 Mini-jack Stereo
Control Terminal RS-232
Security Kensington lock

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
7 2011/04/07
2-2. Views of Projector parts
I TEM L ABEL D ESCRIPTION
1.
IR receiver Receiver for IR signal from remote control
2.
Lens cap Covers lens to protect when not in use
3.
Height-adjust button Push to release height adjuster
4.
Height adjuster Adjusts level of projector
5.
Lens Remove lens cap before use
6.
Zoom ring Enlarges the projected image
7.
Focus ring Focuses the projector image
8.
Function keys See Top view-on screen Display (OSD) buttons and LEDS
9.
Height adjuster Adjusts level of projector
Important:
Ventilation openings on the projector allow for good air circulation, which keeps the projector
lamp cool. Do not obstruct any of ventilation openings.

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
8 2011/04/07
2-3. Top view-on screen Display (OSD) buttons and LEDS
I TEM L ABEL D ESCRIPTION
1.
Menu Open and Exits the OSD buttons
ON System over temperature
2.
Temp LED OFF Normal state
3.
Lamp LED Flashing Error code
Green Power on
Off Power off (AC Off)
4.
Power LED
Flashing Error off
5.
Source Detects the input device
6.
Up Cursor / Keystone Navigates and changes settings in the OSD / Quick Menu-For Keystone
7.
Down Cursor / Keystone
Navigates and changes settings in the OSD / Quick Menu-For Keystone

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
9 2011/04/07
8.
Right Cursor / OK Navigates and changes settings in the OSD / Enter Menu
9.
Power Turns the projector on or off
10.
Left Cursor / Auto Navigates and changes settings in the OSD / Optimizes image size, position,
and resolution

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
10 2011/04/07
2-4. Rear view
I TEM L ABEL D ESCRIPTION
1.
Kensington Lock Secure to permanent object with a Kensington Lock system
2.
AC IN Connect the POWER CABLE
3.
VIDEO Connect the VIDEO CEBLE from a video device
4.
S-VIDEO Connect the S-VIDEO CEBLE from a video device
5.
AUDIO-IN Connect the AUDIO CEBLE from the input device
6.
RS-232 Connect the RS-232 CABLE from a computer
7.
RGB Connect the RGB CABLE from a computer or components
NOTE:
If you video equipment has both S-VIDEO and RCA jacks (composite video) connect to the
S-VIDEO connector. S-VIDEO provides a better quality signal.

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
11 2011/04/07
2-5. Bottom view
I TEM L ABEL D ESCRIPTION
1.
Lamp Cover Remove when changing the lamp
2.
Height adjustor Adjuster drops down when adjuster button is pushed
3.
Lens cap hook Push to release adjustor
4.
Tilt adjustor Rotate adjuster level to adjust angle position
5.
Ceiling support holes Contact your dealer for information on mounting the projector on a ceiling
NOTE:
When installing, ensure that you see only UL Listed ceiling mounts.
The construction of the ceiling mount must be of a suitable shape and strength. The ceiling
mount load capacity must exceed the weight of the installed equipment (not less than 5.15KG)
over a period of 60 seconds.

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
12 2011/04/07
2-6. Remote Control Parts
Important:
1. Avoid using the projector with bright fluorescent lighting turned on. Certain high-frequency
fluorescent lights can disrupt remote control operation.
2. Be sure nothing obstructs the path between the remote control and the projector. If the path
between the remote control and the projector is obstructed, you can bounce the signal off
certain reflective surfaces such as projector screens.
3. The buttons and keys on the projector have the same functions as the corresponding
buttons on the remote control. This user’s manual describes the functions based on the remote
control.

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
13 2011/04/07
I TEM
L ABEL D ESCRIPTION
1.
Up cursor Navigates and changes settings in the OSD
2.
Enter Changes settings in the OSD
3.
Power Turns the projector On or Off
4.
Right cursor Navigates and changes settings in the OSD
5.
Volume + Increase volume
6.
Volume - Decrease volume
7.
Mute Mutes the built-in speaker
8.
Freeze Freeze/unfreezes the on-screen picture
9.
Source Detects the input device
10.
Auto Auto adjustment for frequency, tracking, size, position
11.
Keystone top Corrects image trapezoid (wider bottom) effect
12.
Keystone bottom Corrects image-trapezoid (wider top) effect
13.
Down cursor Navigates and changes settings in the OSD
14.
Left cursor Navigates and changes settings in the OSD
15.
Menu Opens the OSD
Remote Control Operating Range
The remote control uses infrared transmission to control the projector. It is not necessary to
point the remote directly at the projector. Provided you are not holding the remote
perpendicular to the sides or the rear of the projector, the remote will function well within a
radius of about 7 meters (23 feet) and 15 degrees above or below the projector level. If the
projector does not respond to the remote control, move a little closer.

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
14 2011/04/07
2-7. Inserting the Remote Control Batteries
1.
Remove the battery compartment
cover by sliding the cover in the
direction of the arrow. (A) Pull out the
cover. (B)
2.
Insert the battery with the positive
side facing up.
3.
Replace the cover.
Caution:
1. Only use a 3V lithium battery (CR2025)
2. Dispose of used batteries according to local ordinance regulations.
3. Remove the battery when not using the projector for prolonged periods.

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
15 2011/04/07
2-8. Block Diagram

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
16 2011/04/07
3. TROUBLE SHOOTING
By checking operations during normal usage time, it is possible to carry out judgments on
malfunction to a certain extent. Carry out the following checks before disassembling the
equipment.
Connect the power cord
• Power Supply Unit malfunction
•
Check the connection of Power Supply (LVPS BD CON3002 to MB P301)
• Check keypad connection ( MB P800 to Keypad P8100)
• Check voltage (12v, 5v, 3.3v, 2.5v,1.8v,1.2v,…etc) on Main Board.
<
Stand
-
by >
Power: Flashing Green
Light
Temp : OFF
Lamp :OFF
Yes
< Fan error >
Power: Flashing Green
Light6
Temp: OFF
Lamp: Flashing Red
Light（
（（
（1，
，，
，2，
，，
，3）
））
）
•
Check the system monitor & fan
•
Connector (P8002，P8003) on Main Board disconnected.
< Power supply error >
Power: OFF
Temp: OFF
Lamp: OFF
Yes
Yes
No
No

Delta Elec. Inc. BS254 & BX254 & BX324 rev.05
Company Confidential LG ______________________ Delta____________
17 2011/04/07
Yes
No
Waiting
Power On
< DMD error
>
Power: Flashing Green
Light 8
Temp: OFF
Lamp:
OFF
Yes
• DMD chip error.
• Check DMD Board PWBAss’y .
No
• Lamp Cover A’ssy is not attached
• Connector (P802) on Main Board disconnected.
or
• Thermal break sensor is open.
• Connector (P803) on Main Board disconnected.
< System error >
Power: Flashing
Green
Light 4 or 7
Temp: OFF
Lamp: OFF

Delta Elec. Inc. BS254_BX254_BX324 rev.06
Company Confidential LG ______________________ Delta____________
18 2011/06/16
Turn the
power ON
Image
Display
< Powering up >
Power: Flashing Green
Temp: OFF
Lamp: OFF
Ignition sound doesn’t exist.
• Power Board Ass’y malfunction (CN1101 doesn’t output 370 V)
• Ballast Connector (CN2204) or LVPS unit (CON3001)
disconnected
• Main Board (P707) disconnected
• Main Board or Ballast Ass’y malfunction
Ignition sound exists.
• Lamp failure (Lamp is broken, damaged, or burst)
•
System Change a new Lamp
< Lamp error >
Power: OFF
Temp: OFF
Lamp: Static Red
< Normal operation >
Power: Flashing Green
Temp: OFF
Lamp: OFF
• Flexible cable of Color WheelAss’y is disconnected (P708) or broken.
• Index Board (P8101) / Main Board (P704) is disconnected
• Index Board malfunction
• Color Wheel Ass’y malfunction (doesn’t rotate).
• Main Board Ass’y malfunction (Color WheelAss’y doesn’t rotate).
< Color Wheel error >
Power: Flashing Green
Light9
Temp: OFF
Lamp: OFF
Yes
Yes
No
No
No

Delta Elec. Inc. BS254_BX254_BX324 rev.06
Company Confidential LG ______________________ Delta____________
19 2011/06/16
Confirmation with none-signal state
Yes
No
No
No
Yes
No
Yes
Projector logo
screen display
Yes
• CW Sensor Board Ass’y malfunction
• Main Board Ass’y malfunction
• DMD Set malfunction
Still dark after the
lamp is on for more
than 1min
• Lamp deterioration (malfunction/usage time)
• Power Supply Unit malfunction
(No change occurs even after lamp replacement.)
• DMD Set malfunction
(No change occurs even after lamp replacement.)
Press “Menu” key
• Remote controller set malfunction, Low battery, and outside
operation rang
• Main BoardAss’y malfunction
• Connector (P704)、(P8103 of IR PWB) disconnected
• IR PWB Ass’y malfunction
• Check the pattern generator setting is wrong
• Main BoardAss’y malfunction
• DMD Set malfunction
• Setting on PC side(external output setting, resolution, etc.)
• Cable malfunction (disconnection and pins broken)
I
mage
display
normally
Input each signal
• Connector (P902) disconnected
• Speaker Ass’y malfunction
• Main BoardAss’y malfunction
Check the
projection
Screen
Speaker work
normally
Image
Display
No
Yes
Yes
Yes
No
No
No
No
No
“No signal” Message display
Yes

Delta Elec. Inc. BS254_BX254_BX324 rev.06
Company Confidential LG ______________________ Delta____________
20 2011/06/16
Yes
Yes
• Black lines on screen (horizontal and vertical)
→DMD Set malfunction
• Missing pixels (Missing white: 1 or more, missing black: 5 or more, or
sequence missing pixels)
→DMD Set malfunction
• Shadows on screen
→Dirt on DMD/projection lens surface
• Bluish shadows on corners of screen (during white screen display)
→Shifted optical axis of Lens Base Unit
Check the
projection
Screen
Check using all black/white screens with
PC connection
Are abnormalities
noticeable on
projection screen?
Does the lamp
go off during
oper
ation?
System OK
Normal operation
•
Temperature protector operated due to the increase in
temperature based on operating environment
• Temperature protector operated due to blocked suction and
exhaust holes or dirty fan
No
Yes
Yes
< Fan error >
Power: Flashing Green
Light 6
Temp: OFF
Yes
• Connector P8002 of Fan disconnected
•Blower fan (Fan2) malfunction
• Connector P8003 of Fan disconnected
• Power fan (Fan3) malfunction
• Connector P8003 of Fan disconnected
• Lamp fan (Fan1) malfunction
Lamp:
Flashing
Red Light 1
<Over temper
ature >
Power: OFF
Temp: ON
Lamp: OFF
No
No
• Lamp malfunction
• Power Supply Unit malfunction
Lamp:
Flashing
Red Light 2
Lamp:
Flashing
Red Light 3