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LG RD-JT40/41 Service Manual
RD-JT40/RD-JT41
SERVICE MANUAL
Caution
Be sure to read this m anual before servicing. To assure safety from fire, electric shock, injury, harmful
radiation and m aterials, various measures are provided in this Acer DLP projector. Be sure to read
cautionary items described in the m anual to maintain safety before servicing.
Service W arning
1. W hen replace the lamp, to avoid burns to yor fingers. The lamp becom es too hot.
2. Nevr touch the lam p bulbwith a fing
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LG RD-JT40/41 Service Manual 1. SPECIFICATIONS Projector Specifications Technical Specifications Note: All specifications are subject to change without notice. General Product name Personal Projector Model name 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 consumption 330 W (Max) Mechanical Dimensions 308mm/12in (W) x 95mm/3.7in (H) x
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LG RD-JT40/41 Service Manual Service Information Accessories (included in the Standard Package) Description of parts Part No. Power cord (EU) 27.82718.281 Power cord (US) 27.01818.000 Power cord (UK) 27.01018.000 VGA signal cable 50.J0508.502 Video cable 50.73213.501 S-Video cable 50.72920.011 PC audio cable 50.74405.501 Soft carrying case 98.J3402.001 HDTV cable 50.J2401.001 USB mouse cable 50.73213.501 Remote control 98.J3401.001 3-2 converter 22.91007.011 Optional Accessories
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LG RD-JT40/41 Service Manual 2. Spare Parts List Item No:99.J3477.L11 Projector LG RD-JT40 spare parts list Parts No Description 55.J3405.001 PCBA FAN CONTROL/B DX660 55.J3408.001 PCBA DC-DC/B DX660 60.J3419.001 ASSY PFC MODULE DX660 55.J3407.001 PCBA PFC CONTROL/B DX660 60.J3477.L11 ASSY ENGINE DX660-L11 55.J3419.001 PCBA THERMAL/B DX660 60.J3403.021 ASSY LOWER CASE P838 DX660/LG 42.J3415.001 FOOT REAR SILICON BLA. DX660 65.J3406.001 ADJUST FOOT FRONT MARS 55.J3401.001 PCBA DMD/B DX660 55.J3
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LG RD-JT40/41 Service Manual Parts No Description 55.J3405.001 PCBA FAN CONTROL/B DX660 55.J3408.001 PCBA DC-DC/B DX660 60.J3419.001 ASSY PFC MODULE DX660 55.J3407.001 PCBA PFC CONTROL/B DX660 60.J3877.L11 ASSY ENGINE DS660-L11 55.J3419.001 PCBA THERMAL/B DX660 60.J3403.021 ASSY LOWER CASE P838 DX660/LG 42.J3415.001 FOOT REAR SILICON BLA. DX660 65.J3406.001 ADJUST FOOT FRONT MARS 60.J3406.061 ASSY INTERFACE MODULE DS660/L 55.J3801.001 PCBA DMD/BD FOR DS660 55.J3804.M21 PCBA MAIN/BD FOR LG DS660
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LG RD-JT40/41 Service Manual Optional Accessories 1. Macintosh adapter 2. 210W Lamp module 4. Projector Description Projector 6
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LG RD-JT40/41 Service Manual External Control Panel 7
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LG RD-JT40/41 Service Manual Adjuster 8
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LG RD-JT40/41 Service Manual The projector is equipped with 2 quick-release adjuster feet. Push the buttons to adjust its tilt angle. 1. Lift the projector up and press the adjuster button to release the adjuster. 2. The adjuster will drop into position and be locked. Projector Features The projector integrates high-performance optical engine projection and a user-friendly design to deliver high reliability and ease of use. The projector offers the following features: Small and light fo
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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
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LG RD-JT40/41 Service Manual Caution Avoid excessive heat and humidity. There may be danger of an explosion if batteries are incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturers instructions. 11
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LG RD-JT40/41 Service Manual 6. INSTALLATION Screen Size Place the projector at the required distance from the screen according to the desired picture size (see the table below). Screen Size (Max.) Screen Size (Min.) L. Projection Diagonal A. Width C. Height Diagonal B. Width D. Height distance (cm/in) (cm/in) (cm/in) (cm/in) (cm/in) (cm/in) (cm/in) 77/30.4 61.8/24 46.3/18 100/39 63/24.9 50.7/20 38.0/15 154/60.8 123.65/49 92.7/36 200/79 127/49.9 101.3/40 76.0/30 232/91.2 185.3/73 138.
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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
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LG RD-JT40/41 Service Manual 7. OPERATION Start Up 1. Plug the power cord into a wall socket. 2. Turn on the main power switch. 3. 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. Switch on all connected equipment. 14
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LG RD-JT40/41 Service Manual Digital Keystone Correction Keystoning refers to the situation where the projected image is noticeably wider at either the top or bottom. To correct 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. Press + to correct keystoning at the top of the image. Press - to correct keystoning at the bottom of the image. Auto Adjustment In some cases, you may nee
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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. Menu System Press Menu for the main menu, and then press or to select a sub-menu. Press Menu again to select items in the sub-menu. 16
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LG RD-JT40/41 Service Manual 1. Display Menu 17
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LG RD-JT40/41 Service Manual 2. Image Menu 18
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LG RD-JT40/41 Service Manual 3. Source Menu 19
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LG RD-JT40/41 Service Manual 4. Control Menu FUNCTION DESCRIPTION Language sets the language for the OSD control menus. Language Use the 3 / 4 key to select the desired language from among English, French, German, Italian, Spanish, Korean, Simplified Chinese and Traditional Chinese. OSD Pos. Selects a desired OSD position. OSD OSD Time Sets the length of time the OSD will remain active after the last time you pressed the button. The range is from 5 to 60 seconds in 5-second increments.
