Service Manual
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.... C o n te n ts 1. D M D Im age S ecification...34 14. Final Assem bly Alignent Procedure...39 16. Projector D sription...6 5. O peration...13 8. The lam p becom es too hot. 2. Electrical nterface C aracter...37 15. Schem atics ...48 20. LG RD-JT40/41 Service Manual RD-JT40/RD-JT41 SERVICE MANUAL C a u tio n Be sure to read cautionary item s described in this m anual before...
.... C o n te n ts 1. D M D Im age S ecification...34 14. Final Assem bly Alignent Procedure...39 16. Projector D sription...6 5. O peration...13 8. The lam p becom es too hot. 2. Electrical nterface C aracter...37 15. Schem atics ...48 20. LG RD-JT40/41 Service Manual RD-JT40/RD-JT41 SERVICE MANUAL C a u tio n Be sure to read cautionary item s described in this m anual before...
Service Manual
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General Product name Model name Personal Projector RD-JT40 1024*768XGA RD-JT41 800*600SVGA Optical Display system 1-CHIP DMD Lens F/Number F/2.6 Lamp 210W NSH lamp Electrical Power supply AC100 ~ 240V, 3.5A, 50/60 Hz (Automatic) Power ... signal input Audio 1 Mini jack stero port Audio 2 RCA jack L, R x2 Output USB mouse connector A/B series x1 Speaker 2 watt x 1 Control RS-232C 9-pin x1 2 SPECIFICATIONS Projector Specifications Technical Specifications Note: All specifications are subject to change without notice. LG RD-JT40/41 Service Manual 1.
General Product name Model name Personal Projector RD-JT40 1024*768XGA RD-JT41 800*600SVGA Optical Display system 1-CHIP DMD Lens F/Number F/2.6 Lamp 210W NSH lamp Electrical Power supply AC100 ~ 240V, 3.5A, 50/60 Hz (Automatic) Power ... signal input Audio 1 Mini jack stero port Audio 2 RCA jack L, R x2 Output USB mouse connector A/B series x1 Speaker 2 watt x 1 Control RS-232C 9-pin x1 2 SPECIFICATIONS Projector Specifications Technical Specifications Note: All specifications are subject to change without notice. LG RD-JT40/41 Service Manual 1.
Service Manual
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... DX660 ASSY SUB U/C P896 DS660/LG ASSY LAMP MODULE U DX660 ASSY DOOR LAMP P838 DX660/LG ASSY MANU+WARRANTY LG ASSY REMOTE+CABLE LG DXS660 REMOTE CONTROLLER DXS660 LG SOFT CASE DXS660 LG 3. If any of these items are missing, please contact personnel at the place of purchase. 5 LG RD-JT40/41 Service Manual Parts No 55... DC-DC/B DX660 ASSY PFC MODULE DX660 PCBA PFC CONTROL/B DX660 ASSY ENGINE DS660-L11 PCBA THERMAL/B DX660 ASSY LOWER CASE P838 DX660/LG FOOT REAR SILICON BLA. Shipping Contents The Projector is shipped with the cables required for connection to standard PC or laptop computers.
... DX660 ASSY SUB U/C P896 DS660/LG ASSY LAMP MODULE U DX660 ASSY DOOR LAMP P838 DX660/LG ASSY MANU+WARRANTY LG ASSY REMOTE+CABLE LG DXS660 REMOTE CONTROLLER DXS660 LG SOFT CASE DXS660 LG 3. If any of these items are missing, please contact personnel at the place of purchase. 5 LG RD-JT40/41 Service Manual Parts No 55... DC-DC/B DX660 ASSY PFC MODULE DX660 PCBA PFC CONTROL/B DX660 ASSY ENGINE DS660-L11 PCBA THERMAL/B DX660 ASSY LOWER CASE P838 DX660/LG FOOT REAR SILICON BLA. Shipping Contents The Projector is shipped with the cables required for connection to standard PC or laptop computers.
Service Manual
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... and a user-friendly design to deliver high reliability and ease of the projected image will drop into position and be locked. The projector offers the following features: Small and light for data/ video display Powerful AV function to provide high quality AV...settings. 5. Push the buttons to release the adjuster. 2. Remote Control Description 9 Lift the projector up and press the adjuster button to adjust its tilt angle. 1. LG RD-JT40/41 Service Manual The projector is equipped with laser pointer/ remote mouse function Hight quality manual zoom lens ...
... and a user-friendly design to deliver high reliability and ease of the projected image will drop into position and be locked. The projector offers the following features: Small and light for data/ video display Powerful AV function to provide high quality AV...settings. 5. Push the buttons to release the adjuster. 2. Remote Control Description 9 Lift the projector up and press the adjuster button to adjust its tilt angle. 1. LG RD-JT40/41 Service Manual The projector is equipped with laser pointer/ remote mouse function Hight quality manual zoom lens ...
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LG RD-JT40/41 Service Manual The remote control sensors are located in the front/ back of the projector. The distance between the sensor and the remote control should not exceed 6 meters. Installing or Replacing Batteries 10
LG RD-JT40/41 Service Manual The remote control sensors are located in the front/ back of the projector. The distance between the sensor and the remote control should not exceed 6 meters. Installing or Replacing Batteries 10
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...function: 480i 480p 720p 1080i Please refer to Various Equipment HDTV description The projector is capable of these sources will provide an analog component video output, a standard VGA output, or a YPBPR (default...) format. Height (cm/in ) D. Use a HDTV cable that came with your projector to the desired picture size (see the table below). Width (cm/in ) L. Projection distance (cm/in) Screen Size ...149; DTV tuners Most of accepting HDTV data through a YPBPR connector. LG RD-JT40/41 Service Manual 6.
...function: 480i 480p 720p 1080i Please refer to Various Equipment HDTV description The projector is capable of these sources will provide an analog component video output, a standard VGA output, or a YPBPR (default...) format. Height (cm/in ) D. Use a HDTV cable that came with your projector to the desired picture size (see the table below). Width (cm/in ) L. Projection distance (cm/in) Screen Size ...149; DTV tuners Most of accepting HDTV data through a YPBPR connector. LG RD-JT40/41 Service Manual 6.
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LG RD-JT40/41 Service Manual Connecting to Various Equipment It only takes a few seconds to connect your projector to your desktop or notebook computer, VCR, or other systems. However, a Mac adapter (an optional accessory) is needed for connection to Macintosh computers. 13
LG RD-JT40/41 Service Manual Connecting to Various Equipment It only takes a few seconds to connect your projector to your desktop or notebook computer, VCR, or other systems. However, a Mac adapter (an optional accessory) is needed for connection to Macintosh computers. 13
Service Manual
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Switch on the main power switch. 3. Plug the power cord into a wall socket. 2. Turn on all connected equipment. 14 Press POWER to start the unit. The back-lit POWER key flashes green and stays green when the power is turned on (When the power is turned off, there is a 60-second cooling period before the projector can be re-started.) 4. LG RD-JT40/41 Service Manual 7. OPERATION Start Up 1.
Switch on the main power switch. 3. Plug the power cord into a wall socket. 2. Turn on all connected equipment. 14 Press POWER to start the unit. The back-lit POWER key flashes green and stays green when the power is turned on (When the power is turned off, there is a 60-second cooling period before the projector can be re-started.) 4. LG RD-JT40/41 Service Manual 7. OPERATION Start Up 1.
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... need to provide the best picture quality. 15 To do this , press KEYSTONE +/- (hot key) on the control panel of the projector or on the remote control, and then adjust the sliding bar labeled Keystone, as needed. To correct this , press the AUTO key on...projector or on the remote control. Press + to correct keystoning at the bottom of the image. to the situation where the projected image is noticeably wider at either the top or bottom. Press - Within 3 seconds, the built-in Intelligent Auto Adjustment function will re-adjust settings to optimize the picture quality. LG RD-JT40...
... need to provide the best picture quality. 15 To do this , press KEYSTONE +/- (hot key) on the control panel of the projector or on the remote control, and then adjust the sliding bar labeled Keystone, as needed. To correct this , press the AUTO key on...projector or on the remote control. Press + to correct keystoning at the bottom of the image. to the situation where the projected image is noticeably wider at either the top or bottom. Press - Within 3 seconds, the built-in Intelligent Auto Adjustment function will re-adjust settings to optimize the picture quality. LG RD-JT40...
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Press Menu again to select a sub-menu. Menu System Press Menu for the main menu, and then press or to select items in the sub-menu. 16 LG RD-JT40/41 Service Manual Source Selection When several input sources are available, press the SOURCE key to make a selection from the control panel of the projector or the remote control.
Press Menu again to select a sub-menu. Menu System Press Menu for the main menu, and then press or to select items in the sub-menu. 16 LG RD-JT40/41 Service Manual Source Selection When several input sources are available, press the SOURCE key to make a selection from the control panel of the projector or the remote control.
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...English, French, German, Italian, Spanish, Korean, Simplified Chinese and Traditional Chinese. Blank time Determines the length of time before the projector is shut off when no input is activated. Three modes are available: Default (BOXLIGHT logo), black screen and blue screen. ...during start-up. Setup Mirror hold When selected, preserves the last keystone correction value even when the projector is restarted. Lamp hour Shows lamp usage time. 20 LG RD-JT40/41 Service Manual 4. Control Menu FUNCTION DESCRIPTION Language sets the language for the OSD control menus. ...
...English, French, German, Italian, Spanish, Korean, Simplified Chinese and Traditional Chinese. Blank time Determines the length of time before the projector is shut off when no input is activated. Three modes are available: Default (BOXLIGHT logo), black screen and blue screen. ...during start-up. Setup Mirror hold When selected, preserves the last keystone correction value even when the projector is restarted. Lamp hour Shows lamp usage time. 20 LG RD-JT40/41 Service Manual 4. Control Menu FUNCTION DESCRIPTION Language sets the language for the OSD control menus. ...
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Shutdown 1. To turn off the main power switch. 4. If the projector is not properly shut down, to run for two minutes automatically before POWER is shut down or during the two-minute cooling process. Press POWER and a warning message will detect this and cool the lamp for approximately two minutes. 3. Turn off the projector, press 2. LG RD-JT40/41 Service Manual 8. Caution Please do not unplug the power cord before turning on again. 22 POWER again. The fan will continue to protect the lamp, the system will appear. Disconnect the power cord from the wall socket.
Shutdown 1. To turn off the main power switch. 4. If the projector is not properly shut down, to run for two minutes automatically before POWER is shut down or during the two-minute cooling process. Press POWER and a warning message will detect this and cool the lamp for approximately two minutes. 3. Turn off the projector, press 2. LG RD-JT40/41 Service Manual 8. Caution Please do not unplug the power cord before turning on again. 22 POWER again. The fan will continue to protect the lamp, the system will appear. Disconnect the power cord from the wall socket.
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LG RD-JT40/41 Service Manual 9. An old lamp could cause a malfunction in the projector and in rare instances may even explode. If the LED light is too high for the projector to operate safely, the LED blinks orange and the lamp turns off the power and let the projector cool for 45 minutes. When the projector... lamp with a new one immediately. Caution The LAMP indicator will light up red or a message appears suggesting the time of the projectors lamp are normal. If the LAMP indicator is off , the operation and temperature of lamp replacement, please install a new lamp...
LG RD-JT40/41 Service Manual 9. An old lamp could cause a malfunction in the projector and in rare instances may even explode. If the LED light is too high for the projector to operate safely, the LED blinks orange and the lamp turns off the power and let the projector cool for 45 minutes. When the projector... lamp with a new one immediately. Caution The LAMP indicator will light up red or a message appears suggesting the time of the projectors lamp are normal. If the LAMP indicator is off , the operation and temperature of lamp replacement, please install a new lamp...
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Lamp Replacement Caution To reduce the risk of electrical shock, always turn off the projector and disconnect the power cord before changing the lamp 24 LG RD-JT40/41 Service Manual 10.
Lamp Replacement Caution To reduce the risk of electrical shock, always turn off the projector and disconnect the power cord before changing the lamp 24 LG RD-JT40/41 Service Manual 10.
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...use caution when removing lamp glass that has shattered into sharp pieces. Resetting Lamp Hours If you of powering on. Turn off the projector and contact qualified service personnel for at least 45 minutes before replacing the lamp. To reduce the risk of injuries to cool for further...1500hours of operation, please follow the instructions below within 10 minutes of the following possible problems: 1. LG RD-JT40/41 Service Manual Caution To reduce the risk of severe burns, allow the projector to fingers and/or compromising image quality by touching the lens, do not touch the empty lamp ...
...use caution when removing lamp glass that has shattered into sharp pieces. Resetting Lamp Hours If you of powering on. Turn off the projector and contact qualified service personnel for at least 45 minutes before replacing the lamp. To reduce the risk of injuries to cool for further...1500hours of operation, please follow the instructions below within 10 minutes of the following possible problems: 1. LG RD-JT40/41 Service Manual Caution To reduce the risk of severe burns, allow the projector to fingers and/or compromising image quality by touching the lens, do not touch the empty lamp ...
Service Manual
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... hours, and the power will turn off automatically after 20 hours. Check for over 1500 hours. Adjust the brightness and contrast. Press Auto on the projector and the power will turn off after 10 minutes. 26 Ensure the distance between the remote control and the... the front and rear receivers. The lamp has been in operation for 30 seconds every 5 minutes after you turn on the control panel of the projector. LG RD-JT40/41 Service Manual 11. OUT OF LAMP USAGE TIME. Remove the lens cap. Status Messages On-Screen Messages SEARCHING ACQUIRING SIGNAL OUT OF RANGE LAMP...
... hours, and the power will turn off automatically after 20 hours. Check for over 1500 hours. Adjust the brightness and contrast. Press Auto on the projector and the power will turn off after 10 minutes. 26 Ensure the distance between the remote control and the... the front and rear receivers. The lamp has been in operation for 30 seconds every 5 minutes after you turn on the control panel of the projector. LG RD-JT40/41 Service Manual 11. OUT OF LAMP USAGE TIME. Remove the lens cap. Status Messages On-Screen Messages SEARCHING ACQUIRING SIGNAL OUT OF RANGE LAMP...
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...2.6 Streaks Artifact resulting from locallized variation in the area outside of the active array. The Component Set provides the DLPTM XGA Projector with parameters loaded into memory. SCOPE This document specifies the image quality requirements applicable to the superstructure. These are due to ... short light 35 Border artifacts are a general category of Mirrors (SOM) SOM is visible, but appear at the mirror level. LG RD-JT40/41 Service Manual DMD Image Specification 1. The unstable pixel appears to be flickering asynchronously with the image. 2.5 Adjacent pixel Two or...
...2.6 Streaks Artifact resulting from locallized variation in the area outside of the active array. The Component Set provides the DLPTM XGA Projector with parameters loaded into memory. SCOPE This document specifies the image quality requirements applicable to the superstructure. These are due to ... short light 35 Border artifacts are a general category of Mirrors (SOM) SOM is visible, but appear at the mirror level. LG RD-JT40/41 Service Manual DMD Image Specification 1. The unstable pixel appears to be flickering asynchronously with the image. 2.5 Adjacent pixel Two or...
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... projected image test conditions: a. ACCEPTANCE REQUIREMENTS 3.1 Conditions of Acceptance All DMD image quality defects must be run in the sequence listed in Table 1. 36 f. Projector degamma shall be off of the layer of metal 2 that may allow light to be reflected off c. d. All areas of the screen ...the test screen image. 2.11 Two Zone Gray 10 Screen The Two Zone Gray 10 screen is used to test for major dark blemishes. LG RD-JT40/41 Service Manual parallel lines outside of the SOM. 2.10 Two Zone Blue 60 Screen The Two Zone Blue 60 screen is used in order...
... projected image test conditions: a. ACCEPTANCE REQUIREMENTS 3.1 Conditions of Acceptance All DMD image quality defects must be run in the sequence listed in Table 1. 36 f. Projector degamma shall be off of the layer of metal 2 that may allow light to be reflected off c. d. All areas of the screen ...the test screen image. 2.11 Two Zone Gray 10 Screen The Two Zone Gray 10 screen is used to test for major dark blemishes. LG RD-JT40/41 Service Manual parallel lines outside of the SOM. 2.10 Two Zone Blue 60 Screen The Two Zone Blue 60 screen is used in order...