FILE NO. SERVICE MANUAL Multimedia Projector Model No. PLC-XU40 U.S.A., Canada, Europe, Asia, Africa Original Version Chassis No. MA3-XU4000 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.
■ 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.
■ 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 9.5 lbs (4.3 kg) LCD Panel System 0.8” TFT Active Matrix type, 3 panels Panel Resolution 1024 x 768 dots Number of Pixels 2,359,296 (1024 x 768 x 3 panels)
■ Circuit Protections This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro- jector, it will automatically turn off by operating one of the following protection circuits. ● Fuse Line Filter Board Fuse The fuse is located inside of the projector.
Circuit Protections ● Warning temperature and power failure protection The projector will be automatically turned off when the internal temperature of the projector exceeds the normal oper- ating temperature, or the cooling fans stop, or the power supplies in the projector are failed. - If the TEMP WARNING indicator (red) is flashing, it may detect the abnormal temperature inside the projector.
■ 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.
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Mechanical Disassemblies AV, DVI, Temp Board and Speaker removal Remove 1 screw (M4x8) to release grounding wires. Pull the Rear Panel ass’y upward. Remove 4 screws (T3x6) and remove the AV Board. Remove 4 screws (T3x6) and remove the DVI Board. Remove 4 screws (T2.6x6) and remove the speaker.
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Mechanical Disassemblies Lamp Ballast Unit removal Remove 1 screw (M3x4) and remove SW902, and then remove 1 screw (M3x6) and disconnect the Lamp Socket. Remove 2 screws (M3x6) to take the Lamp Ballast ass’y upward off. Remove 2 screws (T2x6) to take the isolation sheet off. Remove 4 screws (T3x6) to take the lamp ballast board off.
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Mechanical Disassemblies Power Box Cover and Fans(FN901, FN906) removal Remove 4 screws (M3x12) to take the Fan(FN901) off. Remove 4 screws (M3x8) to take the Fan(FN906) off. Remove 3 screws (M3x6) to take the Power Box Cover upward off. FN906 Power box cover FN901 Fig.7...
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Mechanical Disassemblies Optical Unit removal (2) Step from previous procedure. Remove 6 screws (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. Optical unit Fig.8 Power and P.F.
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Mechanical Disassemblies ⁄0 Fan (FN905) removal Remove 1 screw (M3x6) and take a Washer, Spring and Interlock Switch lever. Pull the Fan and duct ass’y upward, then remove the Interlock switch lever 2 screws (M3x6) to take the Fan (FN905) off. FN905 Fig.10 ⁄1...
■ 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. Projection Lens removal Remove the Front Panel following to “Front Panel Removal” on “Mechanical Disassemblies”. Remove 4 screws (M3x10) to take the Projection Lens ass’y off.
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Optical Pats Disassemblies Condenser lens disassembly Remove 2 screws (M2.5x6) and pull the Condenser Lens ass’y upward. Remove 4 screws (M2x4) to take the Lens off from the holder. Condenser Lens Holder * Lens should be placed as the flat Fig.3- surface side comes to the holder side.
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Optical Parts Disassemblies Relay Lens-Out disassembly Remove 2 screws (M2.5x6) and pull the Relay Lens-Out ass’y upward. Remove 2 screws (M2x4) to take the Lens off from the holder. Note: There is no mounting direction of the lens. Holder Relay Lens-Out Fig.5- Fig.5- Polarized Glass-In removal...
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Optical Parts Disassemblies Polarized Glass-Out/Pre-Polarized Glass removal Remove 4 screws (M2.5x4) and take the LCD/Prism ass’y off upward from the optical unit. Remove each screw and take the glass off upward. Note: The G-LCD and B-LCD panels have a pre-polarized glass respective- ly as shown in Fig.7-2.
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Optical Parts Disassemblies Locations and Directions Key No. Description When the optical parts in the optical unit mounting or assembling, the Mirror (W) parts must be mounted in the specified location and direction as Integrator lens (OUT) shown in figure below. Prism beam splitter (PBS) Dichroic mirror (B) Condenser lens (OUT)
■ 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.
■ Lamp Replacement WARNING: ORDER REPLACEMENT LAMP - For continued safety, replace with a lamp assembly of the same type. Type No. Service Parts No. - Allow the projector to cool for at least 45 minutes before you open the POA-LMP53 610 303 5826 lamp cover.
■ Optical Adjustments Before taking optical adjustments below, remove the Cabinet Top and Main Board following to the “Mechanical Disassemblies” Adjustments require a 2.0mm hex wrench and a slot screwdriver. When you adjust Condenser lens, Condenser lens-out or Relay lens adjustment, you need to disconnect some connectors and FPC cables of LCD panels on the main board.
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Optical Adjustments Condenser Lens adjustment Turn the projector on by a state of without FPC cables. Project only green light on the screen. Adjust the adjustment base of condenser lens assy to make color uniformity in green. 1) If the shading appears on the left or right of the screen as Green shown in Fig.2-1, loosen 2 screws with the 2.0mm hex driv-...
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Optical Adjustments Condenser Lens-Out adjustment Turn the projector on by a state of without FPC cables. Project green and blue lights on the screen. Adjust the adjustment base of condenser lens-out assy to make color uniformity in cyan. 1) If the shading appears on the left or right of the screen as shown Cyan in Fig.3-1, loosen 1 screw with the 2.0mm hex driver, and...
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Optical Adjustments Relay lens-Out adjustment Turn the projector on by a state of without FPC cables. Project all of lights on the screen. Adjust the adjustment base of relay lens assy to make color unifor- mity in white. 1) If the shading appears on the left or right of the screen as shown White in Fig.4-1, loosen 1 screw with the 2.0mm hex driver, and...
■ Electrical Adjustments ● Service Adjustment Menu Operation To enter the service mode To enter the “Service Mode”, press and hold the MENU and IMAGE button on the projector at the same time for more than 3 seconds. The service menu appears on the screen as follows. To adjust service data Select the adjustment item no.
Electrical Adjustments ● Circuit Adjustments CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow- ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of per- formance and product safety.
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Electrical Adjustments Signal Center adjustment Gain adjustment [PC] 1. Receive the 16-step grey scale computer signal with 1. Receive the 16-step gray scale computer signal with Computer [Analog RGB] mode. Computer [Analog RGB] mode. 2. Enter the service mode. 2. Enter the service mode. TP505R TP505R 3.
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Electrical Adjustments Gain adjustment [Component] Gamma Gain adjustment [AV] 1. Receive the 16-step gray scale component video sig- 1. Receive the 16-step gray scale composite video sig- nal [480i] with Video [Y,Cr,Cb] mode. nal with Video [Video] mode. 2. Enter the service mode. 2.
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Electrical Adjustments ⁄0 ⁄2 Signal Offset adjustment [PC] White Balance adjustment 1. Receive the 16-step gray scale computer signal with [PC WHITE BALANCE ADJUSTMENT] Computer [Analog RGB] mode. 1. Receive the 16-step gray scale computer signal with 2. Enter the service mode. Computer [Analog RGB] mode.
Electrical Adjustments ● Service Adjustment Data Table These initial values are the reference data written from the CPU ROM to memory IC when replaced new memory IC. The adjust- ment items indicated with “✻” are required to readjust following to the “Electrical adjustments”. Other items should be used with the initial data value.
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Electrical Adjustments Initial Item No. Name Device YCbCr Video Detail NTSC V-Line Color Shading Correction Setting (B_OFFSET 4) CXD3526GG V-Line Color Shading Correction Setting (B_OFFSET 5) CXD3526GG V-Line Color Shading Correction Setting (B_OFFSET 6) CXD3526GG V-Line Color Shading Correction Setting (B_OFFSET 7) CXD3526GG V-Line Color Shading Correction Setting (B_OFFSET 8) CXD3526GG...
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Initial Item No. Name Device YCbCr Video Detail NTSC REDGAIN AD9884 GRNGAIN AD9884 BLUGAIN AD9884 REDOFST AD9884 GRNOFST AD9884 BLUOFST AD9884 CLDUR AD9884 CLPLACE AD9884 OverScan Expand Ratio (Vertical) 60Hz PIXEL Video and S-Video mode only. Expand Ratio (Horizontal) 60Hz PIXEL Position (Horizontal) 60Hz PIXEL...
■ Troubleshooting No Power This projector provides a function which can be specified a defective area simply by indicating the LEDs on the con- trol panel. Connect the AC cord and press the Power button once and then check the LED indication. - When all the LED indicators are not lighting, the symptom indicates that the primary power supply circuit does not operate properly.
Troubleshooting No Picture Check following steps. No picture with all of Check signal processing stage and LCD driving stage; input sources Check RGB S&H signals at test points TP501B, TP502B, TP503G, TP504G, TP505R, TP506R. Check PSIG signals at test points TP3501 and TP3531. Check power supply circuit 15.5V SWD and peripheral circuit.
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Troubleshooting From previous page No picture with S-VIDEO Check AV source selecting stage; input source Check S-video signal (Y/C) on the AV board. Check IC2101, Video/S-Video-sw, and IC3101, Video decoder, and peripheral circuit. S/CV-SW signal (S-Video:H) is applied on pins 2, 7 and 12 of IC2101, output from pin 17 of IC1804.
Troubleshooting No Sound Check following steps. audio signal Check PC/AV-audio switching circuit. observed on the AUDIO- Check IC001, audio-sw IC, and peripheral circuit. PC/AV_SW5 OUT terminal? (PC:L) signal is applied on pin 10 of IC001 through Q041. MUTE5 signal (Mute:H) is applied on pin 9 of IC001 output from pin 12 of IC1803 through IC1351, buffer IC.
■ Control Port Functions ● System Control & I/O Port Table IC Ref. No Pin/Name Signal Name Function Note IC301 PortA0 ROMWEL For ICE PortA1 ROMWEH For ICE PortA2 BOOTWE For ICE PortA3 DDC_CK NVRAM I2C CLK for DDC PortA4 5V_SW Power ON/OFF MainPower-ON:High...
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Control Port Functions IC Ref. No Pin/Name Signal Name Function Note Not used Not used Not used KEY_WE Not used DSINV_SW Not used IC1822 Main Key Switch Main Key Switch Main Key Switch Main Key Switch M2/SEL0 Mouse Selection 0 M2/SEL1 Mouse Selection 1 LAMP_ERR...
■ Cleaning After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit. Remove dust and other particles using air spray.
■ Electrical Parts List MA3-XU4000 Product safety should be considered when a component replacement is made in any area of a projector. Components indicated by a ! mark in this parts list and the circuit diagram show components whose value have spe- cial significance to product safety.
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MA3-XU4000 Electrical Parts List Note: Parts order must contain Chassis No., Part No., and Descriptions. ● OUT OF CIRCUIT BOARD A901 Key SW Board Ballast Board P.F. Board F601 Fuse Main Board Line Filter Board RC Front Board Power Board DVI Board Temp Board AV Board...
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SANYO Electric Co., Ltd. (MA3A) Jan. 2003 BB 400 Printed in Japan...
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PLC-XU40 MA3-XU4000 These schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. MA3-XU4000 model PLC-XU40. File with the service manual No. SM5110452. Note: All the information of part numbers and values indicated on these diagrams are at the beginning of production.
■ Parts description and reading in schematic diagram MA3-XU4000 1. The parts specification of resistors, capacitors and Resistor Reading coils are expressed in designated code. Please check Example 1/2 D J 10K B the parts description by the following code table. 2.
■ Printed Wiring Board Diagrams ! CAUTION This projector is isolated from AC line by using the internal converter transformer. Please pay attention to the following notes in servicing 1. Do not touch the part on hot side (primary circuit) or both parts on hot and cold sides (secondary circuit) at the same time.