LG BS254, BX254, BX324 Schematic

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

DATA PROJECTOR

BS254 & BX254 & BX324

SERVICE MANUAL

Company Confidential LGE_______________________ Delta____________

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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

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3;

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

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

Page84, Item9, change the part number from 3622403511 to 3622404311, rev.04

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

other is COV30816201,

and updated the photos on the page87

COV30816101, and the

6/16/2011

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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

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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 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

XGA 1024x768 Native

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)

Stand By < 1 watts

Normal Mode: 180W;

Lamp

Eco Mode: 160W

Audio speaker 1.5W mono speaker PC RGB

Composite video (RCA X 1)

Video

S-Video (Mini-DIN)

Typical 300W (standard mode);

Typical 230W (ECO mode)

Normal Mode: 240W;

Eco Mode: 180W

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Audio IN 3.5 Mini-jack Stereo Control Terminal RS-232 Security Kensington lock

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2-2. Views of Projector parts

I

TEM

L

ABEL

D

ESCRIPTION

1.

2.

3.

4.

5.

6.

7.

8.

9.

Important:

IR receiver Receiver for IR signal from remote control

Lens cap Covers lens to protect when not in use

Height-adjust button Push to release height adjuster

Height adjuster Adjusts level of projector

Lens Remove lens cap before use

Zoom ring Enlarges the projected image

Focus ring Focuses the projector image

Function keys See Top view-on screen Display (OSD) buttons and LEDS

Height adjuster Adjusts level of projector

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

I

TEM

L

1.

2.

3.

4.

5.

6.

Menu Open and Exits the OSD buttons

Temp LED

Lamp LED Flashing Error code

Power LED

Source Detects the input device

Up Cursor / Keystone Navigates and changes settings in the OSD / Quick Menu-For Keystone

ABEL

D

ON System over temperature

OFF Normal state

Green Power on Off Power off (AC Off) Flashing Error off

ESCRIPTION

7.

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Down Cursor / Keystone Navigates and changes settings in the OSD / Quick Menu-For Keystone

2011/04/07

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

8.

9.

10.

Right Cursor / OK Navigates and changes settings in the OSD / Enter Menu

Power Turns the projector on or off

Navigates and changes settings in the OSD / Optimizes image size, position,

Left Cursor / Auto

and resolution

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2-4. Rear view

I

TEM

L

ABEL

D

ESCRIPTION

1.

2.

3.

4.

5.

6.

7.

Kensington Lock Secure to permanent object with a Kensington Lock system

AC IN Connect the POWER CABLE

VIDEO Connect the VIDEO CEBLE from a video device

S-VIDEO Connect the S-VIDEO CEBLE from a video device

AUDIO-IN Connect the AUDIO CEBLE from the input device

RS-232 Connect the RS-232 CABLE from a computer

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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2-5. Bottom view

I

TEM

1.

2.

3.

4.

5.

L

Lamp Cover Remove when changing the lamp

Height adjustor Adjuster drops down when adjuster button is pushed

Lens cap hook Push to release adjustor

Tilt adjustor Rotate adjuster level to adjust angle position

Ceiling support holes Contact your dealer for information on mounting the projector on a ceiling

ABEL

D

ESCRIPTION

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.

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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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I

TEM

L

ABEL

D

ESCRIPTION

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

Up cursor Navigates and changes settings in the OSD

Enter Changes settings in the OSD

Power Turns the projector On or Off

Right cursor Navigates and changes settings in the OSD

Volume + Increase volume

Volume - Decrease volume

Mute Mutes the built-in speaker

Freeze Freeze/unfreezes the on-screen picture

Source Detects the input device

Auto Auto adjustment for frequency, tracking, size, position

11.

12.

13.

14.

15.

Keystone top Corrects image trapezoid (wider bottom) effect

Keystone bottom Corrects image-trapezoid (wider top) effect

Down cursor Navigates and changes settings in the OSD

Left cursor Navigates and changes settings in the OSD

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____________ 13

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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 direction of the arrow. (A) Pull out the

1.

cover. (B)

Insert the battery with the positive side facing up.

2.

Replace the cover.

3.

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

2-8. Block Diagram

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

•

<

Stand

-

by >

< Fan error >

•

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.

Yes

Connect the power cord

Power: Flashing Green

Light

Temp : OFF Lamp :OFF

No

< Power supply error >

Power: OFF

Temp: OFF

Lamp: OFF

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.

No

Power: Flashing Green

Light6

Temp: OFF

Lamp: Flashing Red

Light（（（（1，，，，2，，，，3）

）

））

Yes

Check the system monitor & fan

Connector (P8002，P8003) on Main Board disconnected.

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

Waiting

< DMD error

>

Lamp:

OFF

< System error >

Green

No

Yes

Power: Flashing

Light 4 or 7

Temp: OFF Lamp: OFF

• 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.

Power: Flashing Green

Light 8

Temp: OFF

No

Power On

Yes

• DMD chip error.

• Check DMD Board PWB Ass’y .

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Delta Elec. Inc. BS254_BX254_BX324 rev.06

Turn the

Image

< Powering up >

< Lamp error >

< Normal operation >

< Color Wheel error >

power ON

Power: Flashing Green

Temp: OFF Lamp: OFF

Power: Flashing Green

Temp: OFF Lamp: OFF

No

Power: OFF

Temp: OFF

Lamp: Static Red

Yes

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)

No

Power: Flashing Green

Light9

Temp: OFF

Lamp: OFF

Yes

• Flexible cable of Color Wheel Ass’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 Wheel Ass’y doesn’t rotate).

No

Company Confidential LG ______________________ Delta____________ 18

Display

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Delta Elec. Inc. BS254_BX254_BX324 rev.06

Projector logo

screen display

Still dark after the

than 1min

I

mage

display

Check the

Speaker work

normally

Image

Display

Yes

Confirmation with none-signal state

lamp is on for more

Yes

“No signal” Message display

No

Press “Menu” key

Yes

Input each signal

Yes

normally

No

Yes

No

• CW Sensor Board Ass’y malfunction

• Main Board Ass’y malfunction

• DMD Set malfunction

No

• 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.)

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

• DMD Set malfunction

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

• Cable malfunction (disconnection and pins broken)

Company Confidential LG ______________________ Delta____________ 19

Yes

projection

Screen

No

• Connector (P902) disconnected

• Speaker Ass’y malfunction

No

• Main Board Ass’y malfunction

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Delta Elec. Inc. BS254_BX254_BX324 rev.06

Check the

Check using all black/white screens with

Are abnormalities

Does the lamp

oper

ation?

System OK

Temperature protector operated due to the increase in

• Temperature protector operated due to blocked suction and

< Fan error >

Lamp:

Flashing

<Over temper

ature >

Lamp:

Flashing

Lamp:

Flashing

projection

Screen

PC connection

Yes

noticeable on

projection screen?

• 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

go off during

No

Normal operation

Yes

Power: Flashing Green

Light 6

Temp: OFF

Yes

Red Light 1

Red Light 2

No

Red Light 3

• Connector P8003 of Fan disconnected

• Lamp fan (Fan1) malfunction

• Connector P8002 of Fan disconnected

•Blower fan (Fan2) malfunction

• Connector P8003 of Fan disconnected

• Power fan (Fan3) malfunction

Power: OFF

Temp: ON

Lamp: OFF

No

• Lamp malfunction

• Power Supply Unit malfunction

Company Confidential LG ______________________ Delta____________ 20

Yes

• temperature based on operating environment

exhaust holes or dirty fan

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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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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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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4. DIS-ASSEMBLY AND ASSEMBLY

Removing the Lamp Cover and Lamp Module

D

I

S

A

S

E

M

B

L

Y

Look the full set projector. Look at the IO side.

Look at the keypad of top side. Look at the keypad of top side.

Loose these two screws. Review the lamp cover.

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Removing the Lamp Cover and Lamp Module

D

I

Loose these three screws and note

S

this connector

A

S

E

M

Remove the lamp modules (upward view).

B

L

Y

Take out the lamp module like this.

Look the Lamp #1.

Look the Lamp #2.

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Look the Lamp #3.

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Delta Elec. Inc. BS254_BX254_BX324 rev.06

Removing the Lamp Module and Front Cover

D

I

S

A

S

E

M

B

L

Y

Look at the bottom side Remove the four screws.

Look the screws (S01). When assembly the front cover note

these connector.

Review the front cover.

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