(Europe, Asia, Africa, M.E.) PLC-XU22B (U.K.) Original Version Service Instructions & Parts List Service Ref. No.: PLC-XU22E-00 PLC-XU22B-00 Schematic Diagrams Printed Wiring Board Diagrams Give complete “Service Ref. No.” for parts order or servicing, it is shown on the rating This Service Manual is provided with the above sheet on the projector.
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Model No. PLC-XU22E (Europe, Asia, Africa, M.E.) PLC-XU22B (U.K.) Original Version Service Ref. No.: PLC-XU22E-00 PLC-XU22B-00 Give complete “Service Ref. No.” for parts order or servicing, it is shown on the rating sheet on the projector. PRODUCT CODE REFERENCE 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) 239mm x 90mm x 323mm Net Weight 4.0 kg 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) Scanning Frequency...
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 The fuse is located inside of the projector. When either the LAMP indicator or the READY indicator is not illuminat- ed, fuse may be opened.
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 sup- ply lines are failed.
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 3. FRONT CABINET, VIEWER LED BOARD* REMOVAL 1) Remove 4 screws (A) and remove the front cabinet forward. 2) Remove a screw (B) and remove the Viewer LED Board. * Model without the PC Card slot does not provide the Vierwer LED Board. Viewer LED Board * Fig.3...
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Mechanical Disassemblies 5. AV BOARD, REAR CABINET, FAN REMOVAL (FN904, FN905) 1) Pull the Rear Cabinet Ass’y upward. Spacer 2) Remove a screw (A) and take the spacer off. Thermal Switch 3) Remove 2 screws (B) and remove the (SW902) Thermal Switch (SW902).
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Mechanical Disassemblies 7. LAMP BALLAST UNIT REMOVAL 1) Remove 2 screws (A) and disconnect the lamp socket. 2) Remove 2 screws (B) and pull the Lamp Ballast Ass’y upward. 3) Remove 2 screws (C) and remove the Lamp Ballast Unit from Lamp Ballast Holder the Lamp Ballast Holder.
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Mechanical Disassemblies 9. POWER, P.F. BOARD REMOVAL 1) Remove screws (A) and pull the Power Board Ass’y upward. 2) Remove 3 screws (B) and take the Power Board off from the Power Board Holder. 3) Remove the P.F. Board from the Power Board. Power Board P.F.
Mechanical Disassemblies 11. SERVICE POSITION For servicing the AV, AV Sub, Main-A and Main-D Board, it is advisable to set up the service position for the checking and testing easily following to below steps 1) Remove the AV, AV Sub and Main-A/D Board following to steps 1~5 of “Mechanical Disassemblies”.
Optical Parts Disassemblies Remove the Cabinet Top , AV Sub, Main-B/C Board following to the “Mechanical Disassemblies”, before proceed- ing these disassemblies. 1. PROJECTION LENS REMOVAL 1) Remove the Optical Unit/Projection Lens following to the step 8 of “Mechanical Disassemblies”. 2) Remove 4 screws and remove the Projection Lens.
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Optical Pats Disassemblies 3. INTEGRATOR LENS-IN ASS’Y DISASSEMBLY Remove 2 screws (A) and take the Integrator Lens-IN off from the lens holder. Lens Surface Lens Holder Integrator Lens-IN Fig.4 4. OPTICAL UNIT TOP REMOVAL 1) Remove each screw (A) and remove the Polarized Glass Holders. 2) Remove 4 screws (B) and take the Optical Unit Top off.
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Optical Parts Disassemblies 5. INTEGRATOR LENS-OUT ASS’Y REMOVAL Remove 2 screws (A) and pull the Integrator Lens-OUT Ass’y downward. Fig.6 Integrator Lens-OUT Ass’y Lens Surface Fig.7 6. INTEGRATOR LENS-OUT ASS’Y DISASSEMBLY Remove the Lens Holder and disassembly the Integrator Lens-OUT Ass’y. Lens Holder Prism Assy (Beam Splitter)
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Optical Parts Disassemblies Parts Name and Locations When the optical parts mounting or assembling, the parts must be mounted in the specified location and direction. Please refer to the figure below and “Mounting direction of optical parts” on next page. Part name Part name Prism ass’y...
Optical Parts Disassemblies Mounting direction of optical parts The optical parts must be mounted in specified direction otherwise the picture image will not reproduce correctly. Mounting direction of Lens (Key No. 2, 3, 4, 5, 6, 7) Lens (Key No. 2) is mounted as shown in Fig.9. Lens (Key No.
LCD Panel Replacement LCD PANEL REMOVAL 1. Remove the cabinet top following to “Mechanical Disassemblies”. 2. Remove 3 screws (A) by using 2.0mm hex driver, and then pull the prism/panel ass’y out from the optical base. 3. Remove 4 screws (B) to take off the LCD panel from the prism/panel ass’y. When the LCD panel is replaced, it is required to re-adjust the white balance, convergence and common center adjustments, and white uniformity adjustment if required.
Lamp Replacement WARNING: Service Parts No.: 610 280 6939 Description: Lamp Assy (POA-LMP21J) - For continued safety, replace with a lamp assembly of the same type. - Allow the projector to cool for at least 45 minutes before you open the lamp cover. The inside of the projector can become very hot.
Optical Adjustments CONVERGENCE ADJUSTMENT For convergence adjustment, use Green as the reference standard. Align Red and Blue with Green by adjusting the position and angle of the Red and Blue LCD panels. Screws “A”, “B”, “C” (Fig.1) are for convergence adjust- ment.
Optical Adjustments CONTRAST ADJUSTMENT [Before Adjustment] - Adjustment requires a 2.0mm hex wrench and a slot screwdriver. - Remove cabinet cover following to step1 of “Mechanical Disassemblies”. - Input a 100% of black raster signal. [R/G/B-CONTRAST ADJUSTMENT] 1. Insert paper etc. in front of the LCD panels to block unnecessary lights.
Optical Adjustments INTEGRATOR LENS ADJUSTMENT [Before Adjustment] - Adjustment requires a 2.0mm hex driver and a slot screwdriver. - Remove the cabinet top following to “Cabinet Disassemblies”. - Disconnect AV sub board and connectors FPC cable of LCD panels on the main unit. [Adjustment] screws “A”...
Electrical Adjustments Service Adjustment Menu Operation To enter the service mode To enter the “Service Mode”, press and hold the MENU and NORMAL button on the projector for more than 3 sec- onds. The service mode display 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 perfor- mance and product safety. [Adjustment Condition] Input signal Video signal ....1.0Vp-p/75Ω...
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Electrical Adjustments OFFSET ADJUSTMENT-[CG] VIDEO GAIN ADJUSTMENT-[CG/MCI] 1. Receive the 16-step gray scale video signal. [CG-VIDEO GAIN ADJUSTMENT] 2. Set to COMPUTER mode. 1. Receive the 16-step grey scale computer signal. 2. Set to COMPUTER mode. [R-OFFSET ADJUSTMENT] 3. Connect an oscilloscope to test point “TP2221G” (+) 3.
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Electrical Adjustments VIDEO-GAIN ADJUSTMENT-[AV] NRS ADJUSTMENT Presetting 1. Receive the 16-step grey scale computer signal. 1. Receive the 16-step grey scale video signal. 2. Set to COMPUTER mode. 2. Set to VIDEO mode. 3. Connect an oscilloscope to test point “TP2571” (+) and chassis ground (-).
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Electrical Adjustments CG/MCI/AV VIDEO ADJUSTMENT-1 CG/MCI/AV VIDEO ADJUSTMENT-2 Presetting [CG-VIDEO ADJUSTMENT-2] 1. Input the 16-step gray scale video signal, MCI signal 1. Receive the 16-step grey scale computer signal. and computer signal. 2. Set to COMPUTER mode. 3. Connect an oscilloscope to test point “TP512” (+) and [CG/MCI/AV-VIDEO ADJUSTMENT] * chassis ground (-).
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Electrical Adjustments COMMON CENTER ADJUSTMENT BLACK BALANCE ADJUSTMENT 1. Receive the 16-step gray scale computer signal. [AV BLACK BALANCE ADJUSTMENT] 2. Set to COMPUTER mode. 1. Receive the 16-step grey scale video signal. 2. Set to VIDEO mode. [R-COMMON CENTER ADJUSTMENT] 3.
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Electrical Adjustments WHITE UNIFORMITY ADJUSTMENT This adjustment should be carried out when existing unbalanced white uniformity on the screen or after replacing the LCD panels. (When replacing the main board-A, the memory IC, IC302 on the main board-A should be replaced with the one on previous board, so that the white uniformity adjustment may not be required because the data of white uniformity adjustment are stored in this memory IC, IC302.) White uniformity compensation adjustment system of this model divided the screen into 13 in vertical direction and...
Electrical Adjustments Service Adjustment Data Table The initial value is the reference data writing to the memory IC by the CPU ROM when the memory IC replacing. The Adjustment item which is indicated with “ ” is required to read- justed in the “Electrical adjustments”.
Electrical Adjustments Initial Value Adjustment Item Range Description PIXEL GAIN B 0 ~ 255 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used NTSC AV Total-Dots 2603 2655 0 ~ 4096 AV Display-Dots 1016 1012...
Electrical Adjustments Test Points and Locations Main Comp-A Board IC805 Main Comp-B Board VR9441 VR9401 IC6561 IC6531 IC6501 P.F.C Board HIC Board VR01 IC01 -33-...
Troubleshooting NO POWER Refer to next page When power on/off button is pressed, the input voltage at pin 47 comes High. IC1901 SUB CPU KEY2 ON/OFF BUTTON L: ABNORMAL POWER FAIL To each boards H: ABNORMAL LAMP DET. L: ABNORMAL TEMP DET.
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Troubleshooting Is thermal switch (SW901) operating ? If peripheral temperatures at the optical unit reaches 85˚C, the thermal switch turns off. SW901 -- OPEN: abnormal Abnormal temperature detection at the periphery of optical unit. SW901 Is projection of lamp cover inside broken or not fitting correctry ? Check the interlock switch (SW904) and lamp cover.
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Troubleshooting NO POWER PERIPHERY OF CHASSIS MAIN COMP-C BOARD 1. Is fuse (F901) blown? 1. Check that the Vcc-voltage(+5V) is applied to pins 4, Fuse may be opened when either the LAMP indica- 5 of K30R and pins 61-64 of K30EE. tor or the READY indicator isn't Illuminated.
Troubleshooting NO PICTURE AV, AV SUB BOARD MAIN COMP-A BOARD 1. Check that the Vcc-voltages(+5V, -5V) are applied to 1. Check that the AV/CG switching signal is correct. AV circuits. Pin 16 of IC5201 ...........AV: H, CG: L Pins 10, 11 of IC5282 ........AV: L, CG: H Pins 45-48 of K3001, pins 29-32 of K3002 ....5V 2.
Troubleshooting NO SOUND AV, AV SUB BOARD POWER BOARD 1. Check that the Vcc-voltage(+9V) is applied at pins 3- 1. Check that sound volume control signal is correct. 6 of K3802. Pin 4 of IC001 2. Check that the AV/CG switching signal is correct. 2.
Control Port Functions SUB CPU (IC1901) Port Functions Pin No. Function Name Function Polarity RXD0 RXD 0(Write for Sub CPU flash ROM) active: L TXD1 TXD 0(Write for Sub CPU flash ROM) active: L CNVSS Write for Sub CPU flash ROM MSCL S-IIC SCL active: L...
Control Port Functions I/O Expander (IC1904) Port Functions Pin No. Function Name Function Action no use L: active L: active AV/CG Switch NTSC/OTHER ADPD L: MCI H: else MCISEL L: MCI H: else FOCUS - L: ON H: OFF FOCUS + L: ON H: OFF ZOOM - L: ON H: OFF...
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.
Pin description of diode, transistor and IC Diode Diode K: Cathode A: Anode Transistor/FET Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 (GND) RESET (IN) (OUT) Index Index Index Index Index Index Index...
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. Some of transistors and diodes are indicated in mark Characteristic for the substitution of parts name.
Electrical Parts List 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. It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark.
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Electrical Parts List Note: Parts order must contain Service Ref. No., Part No., and Descriptions. OUT OF CIRCUIT BOARD W901 Viewer Unit Main Comp-D Board FN901 Cooling Fan EL902R EL903B R-LCD Panel B-LCD Panel Main Comp-A Board A901 Lamp Ballast Unit EL901G G-LCD Panel...
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Electrical Parts List Ref. No. Part No. Description Ref. No. Part No. Description OUT OF CIRCUIT BOARDS C5502 403 069 9500 CERAMIC 0.01U Z C5503 403 069 9500 CERAMIC 0.01U Z C5551 403 148 0305 ELECT 470U M LP900 610 280 6939 LAMP ASSY (POA-LMP21J) C5552 403 069 9500...
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Electrical Parts List Ref. No. Part No. Description Ref. No. Part No. Description R5507 401 037 5004 MT-GLAZE 0.000 ZA 1/10W R686 401 038 0800 MT-GLAZE 22K JA 1/10W R5551 401 038 3603 MT-GLAZE 3.3K JA 1/10W R69D 401 102 7407 MT-GLAZE 10 JA R5552...
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Electrical Parts List Ref. No. Part No. Description Ref. No. Part No. Description D692 407 004 0706 DIODE DCB015-TB TRANSISTOR D693 407 004 0706 DIODE DCB015-TB 405 014 4509 TR 2SC2412K T146 R 405 002 0308 TR 2SA1037K T146 R MISCELLANEOUS PC641 408 039 3502...
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Electrical Parts List Ref. No. Part No. Description Ref. No. Part No. Description 610 281 8123 ASSY,PWB,R/C MA6A R1026 401 203 9805 MT-GLAZE 2.7K FA 1/16W R1027 401 247 0202 MT-GLAZE 3.9K FA 1/16W 1AA0B10C2250D R1028 401 037 5202 MT-GLAZE 100 JA 1/10W R1031 401 105 0603...
Printed Wiring Board Diagrams CAUTION (PLC-XU20E/XU22E/XU20B/XU22B) 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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AV Board (SIDE:A) Key Board (SIDE:A) AV Board (SIDE:B) Key Board (SIDE:B) AV Sub Board “K3001” “K3801” RC Board (SIDE:A) Viewer Led Board (SIDE:A) RC Board (SIDE:B) Viewer Led Board (SIDE:B) Main Comp.-A Board (SIDE:A) Main Comp.-A Board (SIDE:A) Main Comp.-D Board “K2201”...
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Main Comp.-B Board (SIDE:A) Main Comp.-B Board (SIDE:B) FN905 SW901 FN904 “K8C” “K8F” G-LCD Panel R-LCD B-LCD Panel Panel “K8A” Power Viewer Led Board “K6P” Main Comp.-C Board (SIDE:A) Main Comp.-C Board (SIDE:B) Main Comp.-B Board “K15DD” Power Board RC Board “K6R”...