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FILE NO.
Multimedia Projector Model No. PLC-XU45
SERVICE MANUAL
PLC-XU46
U.S.A., Canada,
Europe, Asia, Africa
U.K
Original Version
PLC-XU46 PLC-XU45
Chassis No. ME3-XU4500
MF3-XU4600
NOTE: Match the Chassis No. on the unit’s
back cover with the Chassis No. in the
Service Manual.
If the Original Version Service
Manual Chassis No. does not match
the unit’s, additional Service
Literature is required.You must refer to
“Notices” to the Original Service
Manual prior to servicing the unit.
PRODUCT CO
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■ Contents ■ Contents________________________________________________________2 ■ Safety Instructions ________________________________________________3 PRODUCT SAFETY NOTICE ____________________________________3 SERVICE PERSONNEL WARNING ______________________________3 SAFETY PRECAUTIONS ______________________________________3 ■ Specifications ____________________________________________________4 ■ Adjustments after Parts Replacement ________________________________5 ■ Circuit Protections _______
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■ Safety Instructions SAFETY PRECAUTIONS WARNING: The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is iden- tified with the line ( ) in the schematic diagram. For continued product safety and protection of personnel injury, servicing should be made with qualified personnel. The following precautions must be observed. 1: An
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■ Specifications Projector Type Multi-media Projector Dimensions (W x H x D) 13.11” x 3.52” x 9.96” (333mm x 89.5mm x 253mm) Net Weight 9.3 lbs (4.2 kg) (PLC-XU45), 9.8 lbs (4.4 kg) (PLC-XU46) LCD Panel System 0.9” TFT Active Matrix type, 3 panels Panel Resolution 1024 x 768 dots Number of Pixels 2,359,296 (1024 x 768 x 3 panels) Color System 6 color system (PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N) High Definition TV SIgnals 480i, 480p, 575i, 575p, 720p. 1035i and 1080i Scanning Frequency H-
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■ Adjustments after Parts Replacement ● : Adjustment necessary ❍ : Check necessary Disassembly / Replaced Parts LCD/ Polarized glass Condenser Condenser Main Relay P. F . Power Prism Lens Lens-Out Board Lens-Out Board Board RG B Ass’y Condenser lens adjustment ❍● Condenser lens-out adjustment❍● Relay lens-out adjustment❍● Contrast Adjustment R-Contrast adjustment ● G-Contrast adjustment ● B-Contrast adjustment ● Output voltage adjustment Fan voltage adjustment ● Pedestal adjustment ● NRS adjustm
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■ Circuit Protections This projector is equipped with the following circuit protections to operate in safety. If the abnormality occurs inside the projector, it will automatically turn off by operating one of the following protection circuits. ● Fuse Line Filter Board The fuse is located inside of the projector. When either the LAMP Fuse indicator or the READY indicator is not illuminated, fuse may be opened. Check the fuse as following steps. It should be used the specified fuse as follows; Fus
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Circuit Protections ● Warning temperature and power failure protection The TEMP WARNING indicator flashes red and the projector will automatically turn off when the internal tempera- ture of the projector exceeds the normal temperature or when stopping cooling fans or when the internal power supply lines are failed. Check the following possible causes and wait until stopping the TEMP WARNING indicator flashing. Possible causes - Air filter is clogged with dust particles. Remove dust from the air
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■ Mechanical Disassemblies Mechanical disassemble should be made following procedures in numerical order. Following steps show the basic procedures, therefore unnecessary step may be ignored. Caution: The parts and screws should be placed exactly the same position as the original otherwise it may cause loss of performance and product safety. Screws Expression z Cabinet Top and Control Panel removal (Type Diameter x Length) mm 1 Remove 4 screws A (M3x6) to take the Cabinet Top Ass’y upward off.
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Mechanical Disassemblies c AV, DVI, Temp Board and Speaker removal 1 Remove 1 screw A (M4x8) to release grounding wires. 2 Pull the Rear Panel ass’y upward. 3 Remove 4 screws B (T3x6) and remove the AV Board. 4 Remove 4 screws C (T3x6) and remove the DVI Board. 5 Remove 4 screws D (T2.6x6) and remove the speaker. 6 Remove 1 screws E (T3x8) and remove the Sensor Board. Temp board E C DVI board B C B B B C AV board D D A Speaker Fig.3 v Front Panel and R/C Board removal 1 Remove 3 screws A (M3x4),
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Mechanical Disassemblies b Lamp Ballast Unit removal 1 Remove 1 screw A (M3x4) and remove SW902, and then remove 1 screw B (M3x6) and disconnect the Lamp Socket. 2 Remove 2 screws C (M3x6) to take the Lamp Ballast ass’y upward off. 3 Remove 2 screws D (T2x6) to take the isolation sheet off. 4 Remove 4 screws E (T3x6) to take the lamp ballast board off. D C D E C E E Isolation sheet E B Lamp ballast socket Lamp ballast board A SW902 Fig.5 n Filter Board removal 1 Remove 3 screws A (M3x6) and pull
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Mechanical Disassemblies m Power Box Cover and Fans(FN901, FN906) removal 1 Remove 4 screws A (M3x12) to take the Fan(FN901) off. 2 Remove 4 screws B (M3x8) to take the Fan(FN906) off. 3 Remove 3 screws C (M3x6) to take the Power Box Cover A upward off. A B FN906 A A BB B C C C Power box cover FN901 Fig.7 , Optical Unit removal (1) 1 Remove 1 screw A (M3x6) to take the Lamp Cover off. 2 Loosen 3 screws B to take the Lamp assembly by pulling the handle. Step to next procedure. Lamp ass’y B B B La
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Mechanical Disassemblies , Optical Unit removal (2) Step from previous procedure. 3 Remove 6 screws C (M3x8) to take the Optical Unit upward upward off. To mount optical unit, mount optical unit first then mount the Lamp assembly and Lamp Cover. C C C C C C Optical unit Fig.8-2 . Power and P.F. Board removal 1 Remove 4 screws A (T3x6), 4 screws B (T3x8) to C C take the Power Board ass’y upward off. C C 2 Remove 4 screws C (M3x6) to take the P. F. Board from the Power Board. B B 3 Remove 3 screws
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Mechanical Disassemblies ⁄0 Fan (FN905) removal 1 Remove 1 screw A (M3x6) and take a Washer, Spring and Interlock Switch lever. A 2 Pull the Fan and duct ass’y upward, then remove the Interlock switch lever 2 screws B (M3x6) to take the Fan (FN905) off. B B FN905 Fig.10 A ⁄1 Fans (FN902, FN903, FN904) removal A A A 1 Remove 8 screws A (T3x8) and to take the Fan A Duct Top off and remove the Fans (FN902, A A FN903, FN904). 2 Remove 4 screws B (M3x6) to take the Fan Duct Bottom off from the Cabin
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■ Optical Parts Disassemblies Before taking this procedure, remove Cabinet Top and Main Board following to the “Mechanical Disassemblies”. Disassembly requires a 2.0mm hex wrench and a screwdriver. z Projection Lens removal 1 Remove the Front Panel following to “Front Panel Removal” on “Mechanical Disassemblies”. 2 Remove 4 screws (M3x10) to take the Projection Lens ass’y off. Fig.1 x Integrator Lens-In disassembly 1 Remove 2 screws A (M2.5x6) and pull the Integrator Lens-In ass’y upward. 2 Remo
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Optical Pats Disassemblies c Condenser lens disassembly 1 Remove 2 screws A (M2.5x6) and pull the Condenser Lens ass’y upward. 2 Remove 4 screws B (M2x4) to take the Lens off from the holder. A A B Condenser Lens Holder B B B * Lens should be placed as the flat Fig.3-2 surface side comes to the holder side. Fig.3-1 v Condenser Lens-Out disassembly 1 Remove 2 screws A (M2.5x6) and pull the Condenser Lens-Out ass’y upward. 2 Remove 2 screws B (M2x4) to take the Lens off from the holder. Note: Shou
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Optical Parts Disassemblies b Relay Lens-Out disassembly 1 Remove 2 screws A (M2.5x6) and pull the Relay Lens-Out ass’y upward. 2 Remove 2 screws B (M2x4) to take the Lens off from the holder. Note: There is no mounting direction of the lens. A B A Holder B Relay Lens-Out Fig.5-2 Fig.5-1 n Polarized Glass-In removal 1 Remove each screw (M2.5x6) and pull the Polarized Glass-In ass’y upward. 2 Unhook the stoppers and take the glass off upward. Phase Sheet Polarized Glass-In Hooks * Should be place
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Optical Parts Disassemblies m Polarized Glass-Out/Pre-Polarized Glass removal 1 Remove 4 screws A (M2.5x4) and take the LCD/Prism ass’y off upward from the optical unit. 2 Remove each screw B and take the glass off upward. A LCD Panel/ A A Prism Ass’y Note: LCD Panel/Prism Do not replace the LCD panel Ass’y separately otherwise it can not obtain proper picture. Polarized Glass-Out B Optical filter LCD Panel * Glasses should be placed as the film attached side comes to the Fig.7-2 LCD panel side.
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Optical Parts Disassemblies Locations and Directions Key No. Description 1 Mirror (W) When mounting or assembling the optical parts in the optical unit, the 2 Integrator lens (OUT) parts must be mounted in the specified location and direction as 3Prism beam splitter (PBS) shown in figure below. 4 Dichroic mirror (B) 5 Condenser lens (OUT) 1 6 Dichroic mirror (G) 7Relay lens (IN) 8 Mirror (R) 9 Condenser lens (R) 10 Condenser lens 2 11 Condenser lens (B) 12 Optical filter (UV cut) 13 Mirror (B)
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■ LCD Panel/Prism Ass’y Replacement IMPORTANT NOTICE on LCD Panel/Prism Ass'y Replacement LCD panels used for this model can not be replaced separately. Do not disassemble the LCD Panel/Prism Ass’y. These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replaced whole of the LCD panels and prism ass’y at once. After replacing LCD Panel/Prism ass’y, please check the following adjustments. - Check the “Condenser Lens Adjustment” , “Condenser Lens-Out
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■ Lamp Replacement WARNING: ORDER REPLACEMENT LAMP - For continued safety, replace with a lamp assembly of the Type No. Service Parts No. Model same type. POA-LMP63 610 304 5214 PLC-XU45 - Allow the projector to cool for at least 45 minutes before you POA-LMP56 610 305 8801 PLC-XU46 open the lamp cover. The inside of the projector can become very hot. - Do not drop the lamp module or touch the glass bulb! The glass can shatter and cause injury. Procedure 1 Turn off the projector and disco
