FILE NO. SERVICE MANUAL Multimedia Projector Model No. PLC-XU32 PLC-XU33 PLC-XU37 PLC-XU38 U.S.A., Canada, Europe, Asia, Africa Original Version PLC-XU33 PLC-XU32 PLC-XU38 PLC-XU37 Chassis No. MK8-XU3200 MK8-XU3700 MH8-XU3300 MH8-XU3800 NOTE: Match the Chassis No. on the unit’s back cover with the Chassis No. in the Service Manual.
I Contents I Safety instructions ________________________________________________3 I Specifications __________________________________________________ 4 I Adjustments after parts replacement ________________________________ 5 I Circuit protections ______________________________________________ 6-7 G Fuse ____________________________________________________ 6 G Thermal switch ____________________________________________ 6 G Interlock switch ____________________________________________ 6 G Warning temperature and power failure protection ________________ 7 I Mechanical disassemblies ______________________________________ 8-13 I Optical parts disassemblies ____________________________________ 14-17 I LCD panel/prism ass’y replacement ________________________________ 19...
I 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.
800 TV lines Projection Lens F 1.7 ~ 2.0 lens with f 37.4mm ~ 48.3mm with motor zoom and focus (PLC-XU32, XU37) F 1.9 ~ 2.1 lens with f 21.3mm ~ 25.6mm with motor zoom and focus (PLC-XU33, XU38) Throw Distance 5.3’...
I 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. G Fuse Line Filter Board The fuse is located inside of the projector.
Circuit Protections G 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.
I 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 to release a grounding wire. Pull the Rear Panel ass’y upward. Remove 4 screws and remove the AV Board. Remove 4 screws and remove the DVI Board. Remove 4 screws and remove the speaker.
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Mechanical Disassemblies Lamp Ballast Unit removal Remove 1 screw and disconnect the Lamp Socket. Remove 2 screws to take the Lamp Ballast ass’y upward off. Remove 2 screws to take the isolation sheet off. Remove 4 screws to take the lamp ballast board off. Isolation sheet Lamp ballast board Fig.5...
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Mechanical Disassemblies Power Box Cover and Fans(FN901, FN906) removal Remove 4 screws to take the Fan(FN901) off. Remove 4 screws to take the Fan(FN905) off. Remove 3 screws to take the Power Box Cover upward off. FN906 Power box cover FN901 Fig.7 Optical Unit removal...
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Mechanical Disassemblies Optical Unit removal Step from previous procedure. Remove 6 screws 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. Board removal Remove 8 screws to take the Power Board ass’y upward off.
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Mechanical Disassemblies Fan (FN905) removal Remove 1 screw and take a Washer, Spring and Interlock Switch lever. Interlock switch lever Pull the Fan and duct ass’y upward, then remove the 2 screws to take the Fan (FN906) off. FN905 Fig.10 Fans (FN902, FN903, FN904) removal Remove 8 screws and to take the Fan Duct...
I 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. Projection Lens removal Remove the Front Panel following to “Front Panel Removal” on “Mechanical Disassemblies”.
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Optical Pats Disassemblies Condenser lens disassembly Remove 2 screws and pull the Condenser Lens ass’y upward. Remove 4 screws 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 and pull the Relay Lens-Out ass’y upward. Remove 2 screws 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 Remove each screw and pull the Polarized Glass-In ass’y upward.
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Optical Parts Disassemblies Polarized Glass-Out/Pre-Polarized Glass removal LCD Panel/Prism Ass’y Remove 4 screws and take the LCD/Prism ass’y off upward from the optical unit. Remove each screw and take the glass off upward. Note: Models PLC-XU37 and XU38 have a pre-polarized Polarized glass for the green panel is mounted in front of the polarized Glass-Out...
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Optical Parts Disassemblies Locations and Directions Key No. Description When mounting or assembling the optical parts in the optical unit, 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)
I 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.
I 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-LMP35 610 293 2751 lamp cover.
I 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.
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. Green 1) If the shading appears on the left or right of the screen as shown in Fig.2-1, loosen 2 screws with the 2.0mm hex driv- er, and adjust the slot...
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...
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...
I Electrical Adjustments G 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 group no.
(-). Select item no. “ ” and change data value to adjust voltage to be 13.5 ±0.1V. Fan Voltage adjustment [For PLC-XU32/XU37] 1. Enter the service mode and select group no. “ ” and item no. “...
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Electrical Adjustments Pedestal adjustment Signal Center adjustment 1. Receive the 16-step grey scale video signal. 1. Receive the 16-step grey scale computer signal. 2. Set to VIDEO mode. 2. Set to COMPUTER mode. 3. Enter the service mode. 3. Enter the service mode. [R-PEDESTAL ADJUSTMENT] [R-SIGNAL CENTER ADJUSTMENT] TP201R...
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Electrical Adjustments PC Offset adjustment PC Gain adjustment 1. Receive the 16-step gray scale computer signal. 1. Receive the 16-step gray scale computer signal. 2. Set to COMPUTER mode. 2. Set to COMPUTER mode. 3. Enter the service mode. 3. Enter the service mode. [R-OFFSET ADJUSTMENT] [R-GAIN ADJUSTMENT] TP25R1...
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Electrical Adjustments AV Gain adjustment Gamma Shift adjustment 1. Receive the 16-step gray scale video signal. [PC-GAMMA OFF ADJUSTMENT] 2. Set to VIDEO mode. 1. Receive the 16-step gray scale computer signal. 3. Enter the service mode. 2. Set to COMPUTER mode. 3.
Electrical Adjustments G 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.
I Troubleshooting No Power The possible causes of No Power are listed below. Please - Abnormality on lamp ballast drive signal (BALLAST_AC). check following and refer to power supply and protection cir- BALLAST_AC signal is output from pin 39 of IC801 and cuits diagram in the figure opposite.
Troubleshooting No Picture The possible causes of No Picture are listed below. Please 3. No picture from DVI source. check following and refer to video signal processing dia- Check power supply voltages on the DVI board. grams in the figure opposite. 5VDVI on pins 39-40, 5VS on pins 35-36, 3.3VS on pins 31-32, 9VMCI on pins 35-8, 5VD on pins 21-22 of K10W 1.
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Troubleshooting Video Signal processing diagrams HD_VSYNC HD_HSYNC Cb_SW Cr_SW -38-...
Troubleshooting No Sound 1. No audio signals at AV input circuit. Check MUTE signal at pin 1 of IC001. Mute On : Low Check audio signals at pins14 and 15 of IC5011 on the AV Check MUTE signal at pin 7 of IC1831, pins 7 and 13 of Board.
I Control Port Functions G System Control & I/O Port Table (IC801) Pin No. Name Function Name Function Action PE5/D5 POWER_SW Power_SW H: On PE6/D6 SYS SW Peripheral IC power supply SW L: on PE7/D7 LAMP_SW Lamp LED H: On PD0/D8 DATA0 Data Bus 0...
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Control Port Functions Pin No. Name Function Name Function Action Operation mode control 2 Fixed H PF7/¢ ¢ ¢ output PF6/AS AS output PF5/RD Read signal Control for SRAM PF4/HWR Write signal (upper 8 bit) Control for SRAM PF3/LWR/ADTRG/IRQ3 IRO_CS Color uniformity correction (E7050) Chip Select L: active PF2/WAIT...
Control Port Functions G IIC Bus I/O Expander (IC1851) Port Functions Pin No. Name Function Action Reset Open IIC SCL Active “L ” IIC SDA Active “L ” CARD_IN L: CARD H: No CARD VIEWER_ON L: VIEWER Unit exist SCDT1 DVI Sync.
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Control Port Functions G IIC Bus DA Converter (IC2161) Port Functions Pin No. Name Function Action Reset Fixed “H” IIC SCL Active “L ” IIC SDA Active “L ” RCLP R Signal clamp reference voltage GCLP G Signal clamp reference voltage BCLP B Signal clamp reference voltage AO10...
I 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.
I Electrical Parts List MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 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 special significance to product safety.
MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 Electrical Parts List Note: Parts order must contain Chassis No., Part No., and Descriptions. G OUT OF CIRCUIT BOARD Thermal Switch Interlock switch (SW902) (SW904) Lamp Ballast Board F601 Fuse FN906 Line Filter Cooling Fan Board DVI Board FN901 Cooling Fan...
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I Mechanical Parts List MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 Note: Parts order must contain Chassis No., Part No., and Descriptions. G CABINET PARTS -79-...
MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 Optical Parts List 67 (Red) 68 (Green) 69 (Blue) -82-...
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MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 Optical Parts List 53-a (Red) 53-b (Green) 53-c (Blue) 53-d (Green) * Only models PLC- XU33 and XU38 provide this pre- polarized glass. -83-...
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MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 Optical Parts List Models PLC-XU33, PLC-XU38 Models PLC-XU32, PLC-XU37 52-a 52-a -84-...
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MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 Optical Parts List -85-...
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SANYO Electric Co., Ltd. (MK8A) Jul. 2002 BB 400 Printed in Japan...
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I Diagrams & Drawings MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 Schematic Diagrams Printed Wiring Board Drawings Model Chassis No. PLC-XU32 MK8-XU3200 PLC-XU37 MK8-XU3700 PLC-XU33 MH8-XU3300 PLC-XU38 MH8-XU3800 This model provides the following boards, and the information of part numbers and values indicated on these diagrams are at the beginning of production. To improve the performance, there may be some differences to the actual set.
I Parts description and reading in schematic diagram 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 PLC-XU32 Page A12 [Left] ■ 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.
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I Pin description of diode, transistor and IC MK8-XU3200, MK8-XU3700, MH8-XU3300, MH8-XU3800 G Diode G Diode K: Cathode A: Anode G Transistor/FET G Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 G IC G IC (GND)