LG BS254, BX254, BX324 Schematic

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.06

DATA PROJECTOR

BS254 & BX254 & BX324

SERVICE MANUAL

Company Confidential

LGE_______________________

Delta____________

1

2011/06/16

Delta Elec. Inc. BS254 & BX254 & BX324 rev.06

CONTENTS

1.COMPLIANCE OF SAFE REPAIR.........................................................................................						4
1-1.Caution During Disassembling And 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.DISASSEMBLY AND 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
Company Confidential	LGE_______________________			Delta____________
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Delta Elec. Inc.	BS254 & BX254 & BX324	rev.06
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 3392132903;	01/20/2010
		change 3534117300 to 3534117301
	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,	12/01/2010
		LG P/N no change.
	rev.05	Page84, item17, change the LVPS Board P/N from EBT61018601 to	04/07/2011
		EBT61018602
	rev.06	Page85, add two new items (DMD chip), one is COV30816101, and the	6/16/2011
		other is COV30816201, and updated the photos on the page87

Company Confidential

LGE_______________________

Delta____________

3

2011/06/16

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.06

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

Company Confidential

LGE_______________________

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2011/06/16

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.06

Do not look into a lens during projection. This damages your eyes.

2. Specifications

2-1. Summary Specifications

	Model		BS254		BX254			BX324
	Display type		TI DMD 0.55-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				+/- 15 degrees
	correction
	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 300W (standard mode);
			Typical 205W (ECO mode)				Typical 230W (ECO mode)
	Stand By				< 1 watts
	Lamp			Normal Mode: 180W;			Normal Mode: 240W;
				Eco Mode: 160W			Eco Mode: 180W
	Audio speaker				1.5W mono speaker
	PC				RGB
	Video				Composite video (RCA X 1)
					S-Video (Mini-DIN)
Company Confidential				LGE_______________________				Delta____________
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Delta Elec. Inc.	BS254 & BX254 & BX324	rev.06
Audio IN	3.5 Mini-jack Stereo
Control Terminal	RS-232
Security	Kensington lock

Company Confidential

LGE_______________________

Delta____________

6

2011/06/16

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

2-2. Views of Projector parts

ITEM	LABEL	DESCRIPTION
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.

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		2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

2-3. Top view-on screen Display (OSD) buttons and LEDS

ITEM		LABEL			DESCRIPTION
1.		Menu	Open and Exits the OSD buttons
2.			ON		System over temperature
		Temp LED
			OFF		Normal state
3.		Lamp LED	Flashing		Error code
			Green		Power on
4.		Power LED
			Off		Power off (AC Off)
			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
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2011/04/07

	Delta Elec. Inc.		BS254 & BX254 & BX324	rev.05
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

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		2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

2-4. Rear view

ITEM	LABEL	DESCRIPTION
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.

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		2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

2-5. Bottom view

ITEM	LABEL	DESCRIPTION
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.

Company Confidential	LG ______________________	Delta____________
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		2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

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.

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Delta Elec. Inc.		BS254 & BX254 & BX324	rev.05
ITEM	LABEL	DESCRIPTION
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.

Company Confidential	LG ______________________	Delta____________
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		2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

2-7. Inserting the Remote Control Batteries

Remove the battery compartment cover by sliding the cover in the

1. direction of the arrow. (A) Pull out the cover. (B)

Insert the battery with the positive

2. 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.

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		2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

2-8. Block Diagram

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		2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

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

< Stand-by >

Yes Power: Flashing Green

Light

Temp : OFF

Lamp :OFF

No

< Power supply error > Power: OFF Temp: OFF Lamp: OFF

No

< Fan error > Power: Flashing Green

Light6 Temp: OFF

Lamp: Flashing Red Light 1 2 3

Company Confidential 16

Yes	• 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.

Yes

• Check the system monitor & fan

• Connector (P8002 P8003) on Main Board disconnected.

LG ______________________

Delta____________

2011/04/07

Delta Elec. Inc.

BS254 & BX254 & BX324

rev.05

No

< System error > Power: Flashing Green

Light 4 or 7 Temp: OFF

Lamp: OFF

< DMD error > Power: Flashing Green

Light 8 Temp: OFF Lamp: OFF

No

Waiting

Power On

Company Confidential 17

Yes

•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.

Yes	• DMD chip error.
	• Check DMD Board PWB Ass’y .

LG ______________________

Delta____________

2011/04/07

Delta Elec. Inc.

Turn the power ON

< Powering up > Power: Flashing Green Temp: OFF

Lamp: OFF

< Normal operation > Power: Flashing Green Temp: OFF

Lamp: OFF

No

< Lamp error > Power: OFF Temp: OFF Lamp: Static Red

No

< Color Wheel error > Power: Flashing Green Light9

Temp: OFF

Lamp: OFF

No

Image

Display

BS254_BX254_BX324

rev.06

Ignition sound doesn’t exist.

• Power Board Ass’y malfunction (CN1101 doesn’t output 370 V) Yes • 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)

• Flexible cable of Color Wheel Ass’y is disconnected (P708) or broken. Yes • 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 Wheel Ass’y doesn’t rotate).

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Delta Elec. Inc.				BS254_BX254_BX324							rev.06
		Image
	Display
									No
	Yes
	Projector logo				No		• CW Sensor Board Ass’y malfunction
							• Main Board Ass’y malfunction

screen display

• DMD Set malfunction

Yes

Confirmation with none-signal state

No

Still dark after the lamp is on for more than 1min

• Lamp deterioration (malfunction/usage time) Yes • Power Supply Unit malfunction

(No change occurs even after lamp replacement.)

• DMD Set malfunction

(No change occurs even after lamp replacement.)

Yes

“No signal” Message display

No

Press “Menu” key

Yes

Input each signal

Yes

Image display normally

Yes

Speaker work normally

Yes

Check the projection Screen

Company Confidential 19

			No
No		• Remote controller set malfunction, Low battery, and outside
		operation rang

•Main Board Ass’y malfunction

•Connector (P704) (P8103 of IR PWB) disconnected

•IR PWB Ass’y malfunction

No

•Check the pattern generator setting is wrong

•Main Board Ass’y malfunction

No • DMD Set malfunction

• Setting on PC side(external output setting, resolution, etc.)

• Cable malfunction (disconnection and pins broken)

No

• Connector (P902) disconnected No • Speaker Ass’y malfunction

• Main Board Ass’y malfunction

LG ______________________

Delta____________

2011/06/16

Delta Elec. Inc.

Check the projection Screen

Check using all black/white screens with PC connection

Yes

Are abnormalities noticeable on projection screen?

BS254_BX254_BX324

rev.06

		• Black lines on screen (horizontal and vertical)
Yes
		→ 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

Does the lamp	No		System OK
go off during			Normal operation
operation?

Yes

	< Fan error >	Yes
	Power: Flashing Green
	Light 6
	Temp: OFF

No

<Over temperature >	Yes
Power: OFF
Temp: ON
Lamp: OFF

No

•Lamp malfunction

•PowerSupply Unitmalfunction

• Connector P8003 of Fan disconnected

• Lamp fan (Fan1) malfunction

Lamp: Flashing Red Light 1

• Connector P8002 of Fan disconnected

•Blower fan (Fan2)malfunction

Lamp: Flashing

Red Light 2

• Connector P8003 of Fan disconnected

• Power fan (Fan3) malfunction

Lamp: Flashing

Red Light 3

•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

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		2011/06/16

Delta Elec. Inc.

BS254_BX254_BX324

rev.06

Common problems and solutions

These guidelines provide tips to deal with problems you may encounter while using the

projector. If the problem remains unsolved, contact your dealer for assistance.

Often after time spent troubleshooting, the problem is traced to something as simple as a loose connection. Check the following before proceeding to the problem-specific solutions.

∙Use some other electrical device to confirm that the electrical outlet is working.

∙Ensure the projector is turned on.

∙Ensure all connections are securely attached.

∙Ensure the attached device is turned on.

∙Ensure a connected PC is not in suspending mode.

Ensure a connected notebook computer is configured for an external display. (This is usually done by pressing an Fn-key combination on the notebook.)

Image Problems

Problem: No image appears on the screen

1.Verify the settings on your notebook or desktop PC.

2.Turn off all equipment and power up again in the correct order.

Problem: The image is blurred

1.Adjust the Focus on the projector.

2.Press the Auto button on the remote control or projector.

3.Ensure the projector-to-screen distance is within the 10-meter (33-feet) specified range.

4.Check that the projector lens is clean.

Problem: The image is wider at the top or bottom (trapezoid effect)

5.Position the projector so it is as perpendicular to the screen as possible.

6.Use the Keystone button on the remote control or projector to correct the problem.

Problem: The image is reversed

Check the Projection setting on the Installation I menu of the OSD.

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Delta Elec. Inc.

BS254_BX254_BX324

rev.06

Problem: The image is streaked

7.Set the Frequency and Tracking settings on the Computer menu of the OSD to the default settings.

8.To ensure the problem is not caused by a connected PC’s video card, connect to another computer.

Problem: The image is flat with no contrast

Adjust the Contrast setting on the Image menu of the OSD.

Problem: The color of the projected image does not match the source image.

Adjust the Color Temperature and Gamma settings on the Image menu of the OSD.

Lamp Problems

Problem: There is no light from the projector

9.Check that the power cable is securely connected.

10.Ensure the power source is good by testing with another electrical device.

11.Restart the projector in the correct order and check that the Power LED is green.

12.If you have replaced the lamp recently, try resetting the lamp connections.

13.Replace the lamp module.

14.Put the old lamp back in the projector and have the projector serviced.

Problem: The lamp goes off

15.Power surges can cause the lamp to turn off. Re-plug power cord. When the Ready LED is on, press the power button.

16.Replace the lamp module.

17.Put the old lamp back in the projector and have the projector serviced.

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Delta Elec. Inc.

BS254_BX254_BX324

rev.06

Remote Control Problems

Problem: The projector does not respond to the remote control

18.Direct the remote control towards remote sensor on the projector.

19.Ensure the path between remote and sensor is not obstructed.

20.Turn off any fluorescent lights in the room.

21.Check the battery polarity.

22.Replace the batteries.

23.Turn off other Infrared-enabled devices in the vicinity.

24.Have the remote control serviced.

Audio Problems

Problem: There is no sound

25.Adjust the volume on the remote control.

26.Adjust the volume of the audio source.

27.Check the audio cable connection.

28.Test the source audio output with other speakers.

29.Have the projector serviced.

Problem: The sound is distorted

30.Check the audio cable connection.

31.Test the source audio output with other speakers.

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Delta Elec. Inc.

BS254_BX254_BX324

rev.06

4. DIS-ASSEMBLY AND ASSEMBLY

Removing the Lamp Cover and Lamp Module

D
I
S	Look the full set projector.	Look at the IO side.
A
S
S
E
M	Look at the keypad of top side.	Look at the keypad of top side.
B
L
Y

Loose these two screws.		Review the lamp cover.
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2011/06/16

Delta Elec. Inc.

BS254_BX254_BX324

rev.06

Removing the Lamp Cover and Lamp Module

D

I

S Loose these three screws and note	Take out the lamp module like this.
this connector
A
S
S
E
M
B Remove the lamp modules (upward view).	Look the Lamp #1.
L
Y

Look the Lamp #2.	Look the Lamp #3.
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2011/06/16

Delta Elec. Inc.

BS254_BX254_BX324

rev.06

Removing the Lamp Module and Front Cover

D

I

S	Look at the bottom side	Remove the four screws.
A
S
S
E
M	Look the screws (S01).	When assembly the front cover note
B		these connector.
L
Y

Review the front cover.

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