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Casio XJ-A240 Service Manual
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Casio XJ-A240 Service Manual

Casio XJ-A240 Service Manual

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Machine Translated by Google
Service Manual
XJ-A240/A245

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Summary of Contents for Casio XJ-A240

  • Page 1 Machine Translated by Google Service Manual XJ-A240/A245...
  • Page 2 Machine Translated by Google XJ-A240/A245 Table of contents 1. SPECIFICATIONS 2. FLOW DIAGRAM 3. INSTRUCTIONS FOR USE OF THE PROJECTOR 4. PRECAUTIONS DURING REPAIR 5. PASSWORD 6. ERROR CODES 7. DISASSEMBLY 8. DIAGNOSIS PROGRAM 9. DATA BACKUP 10. SETUP 11. TROUBLESHOOTING 12.

  • Page 3: Technical Specifications

    Machine Translated by Google XJ-A240/A245 1. TECHNICAL SPECIFICATIONS 2500 lumens per ANSI DLP Brightness Projection system DLP chip Size: 0.65" Pixels: WXGA (1280 x 800) 2X optical zoom, electric Projection lens Light focus Laser and RGB mini D-Sub LED 15 pins x 1...
  • Page 4 Machine Translated by Google XJ-A240/A245 2. FLOW DIAGRAM INFRARED SENSOR WIRE 3 pins 15 contacts FW MODULE 7 pins ADDITIONAL FEE 18 pins KEYBOARD VENTS WIRE 4 LYATOR pins VENTS WIRE 4 LYATOR BASIC BOARD pins LD 1 FFC 24...

  • Page 5: Installation Precautions

    Machine Translated by Google XJ-A240/A245 3. INSTRUCTIONS FOR USING THE PROJECTOR 3-1. Installation Precautions Operating conditions have a great influence on the performance of the projector. Make sure the projector is used only under the conditions described below. • Use a conveniently located power outlet that is easily accessible when needed.
  • Page 6 Machine Translated by Google XJ-A240/A245 3-2. Cleaning the projector Before cleaning the projector, make sure it has cooled down sufficiently. 3-2-1. Cleaning the outside of the projector Wipe the outside of the projector with a soft cloth dampened with a mild solution of water and a mild neutral detergent.
  • Page 7 Machine Translated by Google XJ-A240/A245 4. PRECAUTIONS DURING REPAIR This device uses a laser as a light source. When disassembling the device, observe the following precautions. • Before disassembling, turn off the power and unplug the AC power cord from the outlet. • If it is necessary to perform a power-on test during repair, before starting the test, install the top cover.
  • Page 8 (3) When installing a new laser source module, set the accumulated lamp time to zero. When replacing the OPM module or the main board, leave the total lamp time unchanged. 4-3. Type of laser source and how to identify it The XJ-A240/A245 projectors use the following laser source.
  • Page 9 Machine Translated by Google XJ-A240/A245 4-4. Determining the serial numbers of major components Main board (PWB-1) ORM module / ORM block Serial number The alphanumeric characters below the barcode are the serial number. Power supply (ACDC module) Laser Initiation Board (PWB-7)
  • Page 10 4-6. Designations in the serial number Description ÿ Model: 042: XJ-A240, 043: XJ-A245 2 A - history of hardware changes. Z is a sample of the goods being sold. 3 A - history of software changes. Z is a sample of the goods being sold.
  • Page 11 The model is specified with the development code. LY042: XJ-A240 LY043: XJ-A245 (5) To view the ROM version information, select "Function Test" ÿ "ROM CHECK". (6) To exit the diagnostic program, move the cursor to "Diag Exit [ENTER]" and press the [ENTER] button.

  • Page 12: Setting Device Time

    Machine Translated by Google XJ-A240/A245 4-8. Setting device time (1) Move the cursor to "Information Menu" in the main menu and press the [ENTER] button. (2) On the main unit, press the [AUTO], [INPUT], [FOCUS] and [MENU] buttons at the same time. (This item cannot be performed using the remote control). (3) The gray text "Set Unit Time"...
  • Page 13 If users are interested in the password removal method, it is forbidden to give them such information, password removal should be carried out only with the knowledge of Casio.

  • Page 14: Error Codes

    Machine Translated by Google XJ-A240/A245 6. ERROR CODES 6-1. Error Codes Separate logs store information about fatal errors that caused the projector to turn off (ERROR) and non-fatal errors that did not turn off the projector (WARNING). Each log stores up to 8 recent events. No matter how many non-fatal errors occur, the fatal error log is not overwritten (and vice versa).
  • Page 15 Machine Translated by Google XJ-A240/A245 7. DISASSEMBLY 7-1. IMPORTANT INFORMATION This product uses a laser as a light source. When disassembling the device, observe the following precautions. • Before disassembling, turn off the power and unplug the AC power cord from the outlet. • If it is necessary to perform a power-on test during repair, before starting the test, install the top cover.
  • Page 16 Machine Translated by Google XJ-A240/A245 7-2. block diagram A. LSA MODULE (laser source) B. BODY COVER (top) C. LENS BODY (lens cover) S. OPTIONAL TF-B (on the side of the D. PWB-1 BOARD (main board) PWB-1 board) E. LSA-E MODULE (reflector) F.
  • Page 17 Machine Translated by Google XJ-A240/A245 A. LSA MODULE (LASER SOURCE) NOTE: The LSA module is sensitive to static electricity. It needs to be handled with care. A-1. Remove the plug. <ASSEMBLY NOTE: LSA MODULE> • If there is visible damage to the plug or if the plug is difficult to install, use new plug, reuse of the old plug is not allowed.
  • Page 18 Machine Translated by Google XJ-A240/A245 B. TOP BODY COVER B-1. Unscrew the two screws (S3) and remove the USB cover. NOTE: If necessary, remove the wireless adapter (YW-3). (Only for model XJ-A245). <ASSEMBLY NOTE: TOP COVER (XJ- A245 only)> • If the wireless adapter is installed during disassembly, be sure to reinstall it after reassembly. AT 2. Remove three screws (S1).
  • Page 19 Machine Translated by Google XJ-A240/A245 C. LENS COVER C-1. Remove the lens cover. C-2. Remove the plug and unscrew one screw (S15). <ASSEMBLY NOTE: LENS COVER> • Pass the loop through the groove in the lens housing. • When assembling the top cover, make sure that the hinge is not caught between the covers.
  • Page 20 Machine Translated by Google XJ-A240/A245 D-3. Remove the tape. D-4. Disconnect four connectors, three FFCs and one FPC. NOTE: The connector lock is very fragile. Be careful when removing the FFC cable. NOTE: The connector is connected to the back of the PWB-1 board.
  • Page 21 Machine Translated by Google XJ-A240/A245 <ASSEMBLY NOTES: PWB-1 BOARD> • With the rear panel slightly open, assemble the PWB-1 board. • When assembling the unit, make sure that the infrared sensor does not touch the stop or the back panel. • Securely connect the board-to-board (BtoB) connector on the back of the PWB-1 board.
  • Page 22 Machine Translated by Google XJ-A240/A245 E. MODULE LSA-M (REFLECTOR) E-1. Unscrew one screw (S9) and remove the LSA-L cover. NOTE: When removing the LSA-L cover, make sure it does not come into contact with components located around her. NOTE: If the cover is difficult to remove, use a tool such as tweezers.
  • Page 23 Machine Translated by Google XJ-A240/A245 E-3. Unscrew the two screws (S6). NOTE: Be careful not to touch the lens mounting plate with the screwdriver. Lens mounting plate Screws (S6) E-4. Remove the LSA-M module. NOTE: Do not touch lens and reflector.
  • Page 24 Machine Translated by Google XJ-A240/A245 F. OPM MODULE NOTE: Do not touch lens and reflector. F-1. Disconnect the connector attached to the PWB-3 board. F-2. Remove the tape securing the fan B cables. F-3. Unscrew five screws (S6, S9). Connector...
  • Page 25 Machine Translated by Google XJ-A240/A245 <ASSEMBLY NOTES: OPM MODULE> • Position the unit so that the plate touches the housing gasket L and assemble it. Housing L Plate Body gasket L • .Align the two stops and assemble. -23-...
  • Page 26 Machine Translated by Google XJ-A240/A245 G. OPM/DMD/PWB-2 BOARD G-1. Unscrew the two screws (S18) and remove the heatsink. NOTE: Do not touch the heat shield attached to the heatsink. Radiator Screws (S18) heat shield G-2. Remove three screws (S17), remove DMD, PWB-2 board, DMD board and DMD-SP board.
  • Page 27 Machine Translated by Google XJ-A240/A245 H. MODULE FW H-1. Unscrew the two screws (S9) and remove the FW module together with the corner plate. H-2. Unscrew the three screws (S4) and remove the FW module. FW module Angle plate Screws (S4)
  • Page 28 Machine Translated by Google XJ-A240/A245 I. LSB MODULE (LED LIGHT SOURCE) NOTE: Do not touch lens I-1. Unscrew one screw (S9) and remove the LSA-L cover. NOTE: When removing the LSA-L cover, make sure it does not come into contact with the components around it. NOTE: If the cover is difficult to remove, use a tool such as tweezers.
  • Page 29 Machine Translated by Google XJ-A240/A245 I-4. Disconnect the two connectors and remove the LSB module. Lens Connector (Module LSB) <ASSEMBLY NOTES: LSB MODULE> • When attaching the connector of the LSB module (thermal module), make sure that it is oriented correctly.
  • Page 30 Machine Translated by Google XJ-A240/A245 J. FAN MODULE A J-1. Remove the cable tie. J-2. Disconnect the three connectors attached to the PWB-3 board. Salary PWB-3 Back panel Strainer Connector J-3. Remove three screws (S12) and remove fan A. NOTE: A bushing is installed in each hole.
  • Page 31 Machine Translated by Google XJ-A240/A245 <CAUTIONS WHEN INSTALLING A NEW PART: FAN MODULE A> When replacing a component in fan module A with a new fan, proceed as follows: • Wrap the cables with tape to the length shown in the following figure. • When replacing a fan, make a mark with a colored marker on the connector.
  • Page 32 Machine Translated by Google XJ-A240/A245 <ASSEMBLY NOTES: FAN MODULE A> • When assembling the fan module A, make sure that the cables are arranged as shown in the figure below, and fix the cables on the stop with a cable tie.
  • Page 33 Machine Translated by Google XJ-A240/A245 K. FAN MODULE IN K-1. Disconnect the connector (FAN MODULE B) connected to the PWB-3 board. K-2. Remove the tape securing the fan module B cables. Salary PWB-3 ORM MODULE Tape Connector (FAN MODULE B) K-3.
  • Page 34 Machine Translated by Google XJ-A240/A245 L. PWB-3 L-1. Disconnect connectors. Salary PWB-3 Five connectors L-2. Unscrew one screw and remove the PWB-3 board. L-3. Remove the FFC cable. Salary PWB-3 Screw <ASSEMBLY NOTES: PWB-3 BOARD> • Before assembling the PWB-3 board, connect the FFC cable. • When connecting the connectors (FAN MODULE B), make sure to connect the corresponding connector.
  • Page 35 Machine Translated by Google XJ-A240/A245 M. COVER IN M-1. Remove the tape securing the speaker wires to the PWB-1 board. M-2. Disconnect the speaker wire connector. speaker wires Tape Salary PWB-1 M-3. Loosen screw (S9) and remove cover B. Screw (S9) COVER B <CAUTIONS WHEN REPLACING WITH A NEW PART: COVER B>...
  • Page 36 Machine Translated by Google XJ-A240/A245 <ASSEMBLY NOTES: COVER B> • Securely fasten the rear panel and power cable entry. • Route the speaker wires as shown in the figure below. NOTE: When routing the speaker wires, keep the screws and connector away from the wires and secure the wires in place with tape.
  • Page 37 Machine Translated by Google XJ-A240/A245 N. ACDC MODULE (POWER SUPPLY) N-1. Unscrew the three screws (S10, S13) and remove the two insulating plates. N-2. Unscrew five screws (S11, S13). Screws (S13) Screw (S10) Screw (S11) Screws (S13) N-3. With the rear panel open, lift the ACDC module.
  • Page 38 Machine Translated by Google XJ-A240/A245 N-4. Disconnect the two connectors and remove the ACDC module. Connector Connector <CAUTIONS WHEN REPLACING WITH A NEW PART: ACDC MODULE> • When replacing the components of the ACDC module with a new one, make sure that the insulating plate installed.
  • Page 39 Machine Translated by Google XJ-A240/A245 O. PWB-7 BOARD (LASER INITIATION BOARD) O-1. Loosen the two screws and remove cover A. Cover A Screws (S9) O-2. Remove the insulating plate. insulating plate O-3. Disconnect the two connectors and the FFC cable. O-4. Remove six screws (S8) and remove the PWB-7 board.
  • Page 40 Machine Translated by Google XJ-A240/A245 P. TF BUTTON P-1. Loosen screw (S15) and remove cover B. Screw (S15) Cover B P-2. Unscrew two screws (S9) and remove the TF mount. TF mount Screws (S9) R-3. Remove the TF spring and TF button.
  • Page 41 Machine Translated by Google XJ-A240/A245 Q. TF COVER Q-1. Remove the plug. Stub Q-2. Unscrew the four screws (S14) and remove the TF cover. Screws (S14) TF cover Screws (S14) <ASSEMBLY NOTES: TF COVER> • If the plug is visibly damaged or difficult to fit onto the plate, use a new plug, reuse of the old plug is prohibited.
  • Page 42 Machine Translated by Google XJ-A240/A245 R. COVER S R-1. Loosen the screw and remove cover S. Cover S Screw (S9) S. SUPPORT TF-B S-1. Remove the E-ring. S-2. Rotate support TF-B to remove it. E-ring Support TF-B -40-...
  • Page 43 Machine Translated by Google XJ-A240/A245 T. COVER F T-1. Unscrew screw (S9) and remove cover F. Cover F ACDC module Screw (S9) U. PWB-5 BOARD (IR SENSOR BOARD) U-1. Disconnect the connector (PWB-5 board) connected to the PWB-1 board. U-2. Remove the tape securing the cables (PWB-5 board) to fan module B.
  • Page 44 Machine Translated by Google XJ-A240/A245 V. PRECAUTIONS WHEN REPLACING THE FFC CABLE V-1. When replacing the FFC cable (PWB-1 BOARD/PWB-3 BOARD) with a new one, bend it to the shape according to the size shown in the following figure. FFC (BOARD PWB-1/BOARD PWB-3) 25.0 mm...

  • Page 45: Diagnostics Program

    (4) The diagnostic program menu will appear. Development code The model is specified with the development code. LY042: XJ-A240 LY043: XJ-A245 8-2. Procedure • Use the cursor buttons to select the item to be diagnosed, then press the [ENTER] button.
  • Page 46 Machine Translated by Google XJ-A240/A245 8-3. About Diagnostics Diagnostics is performed for the following functions. It is forbidden to perform other types of diagnostics, this may lead to a change in the settings. • Auto-SALL2 (button test, zoom test, memory test) • ROM test • HDMI test 8-3-1.
  • Page 47 Machine Translated by Google XJ-A240/A245 (4) Memory test and result display The memory test is performed automatically. When the memory test is completed, the results of the test are displayed. Check diagnostic results and control values of ROM (DLP, SUB, LD). NOTE: If the zoom test was omitted, the result of the zoom position test (ZoomPos) will be "NG (fail)".
  • Page 48 Machine Translated by Google XJ-A240/A245 8-4. Lamp/Device Hours and Error Codes (Information Menu) 8-4-1. Entering the diagnostic program (1) Connect the power cable to the projector and wait for the [POWER] LED to turn yellow. (2) Press the [ (POWER] button on remote control or on the projector to turn on his.
  • Page 49 Machine Translated by Google XJ-A240/A245 8-5. Setting device time (1) Move the cursor to "Information Menu" in the main menu and press the [ENTER] button. (2) On the main unit, press the [AUTO], [INPUT], [FOCUS] and [MENU] buttons at the same time. (This item cannot be performed using the remote control). (3) The gray text "Set Unit Time"...

  • Page 50: Data Backup

    9. DATA BACKUP The proposed application provides for the collection, storage and registration of internal information of the central processing unit in projectors manufactured by Casio Computer Co., Ltd. The collected information includes individual calibration data and error log entries.

  • Page 51: Software Features

    Machine Translated by Google XJ-A240/A245 9-2. Software Features <Information Display Functions> You can download and view the following information from the projector: Functions Description Product Information Firmware version information for Main CPU/Sub CPU (Sub CPU)/IO USB (I/O USB) Checksum for firmware...
  • Page 52 Machine Translated by Google XJ-A240/A245 9-3. Installing the software Copy the file (BackupKlg.zip) to an appropriate working folder and unzip it. This is all that needs to be done. Directory structure of the unzipped program "Current Folder" BackupKlg.exe (given application) "ReadMe"...
  • Page 53 Machine Translated by Google XJ-A240/A245 (5) Description of the menu bar The menu bar located at the top of the screen is used to perform the following tasks. Main menu Description Submenu File (File) New (New) Create a new backup file (*.klg). Opening an open existing backup file (*.klg).
  • Page 54 Machine Translated by Google XJ-A240/A245 9-6. View Backup Data Select the page of backup data you want to view. After clicking the “Page” item, a drop-down list will appear in the menu bar. Click on the required line to open the page window displaying the data.
  • Page 55 Machine Translated by Google XJ-A240/A245 (2) "Error Log Information" page This page displays the error information of the device. Group Item "Error Log ID" group List Error ID Button «Additional Error Code item Unit Time item Lamp On Time item Power On Time item Power On Time item Power On Count System State Item Information"...
  • Page 56 Machine Translated by Google XJ-A240/A245 (3) "Calibration Information" page This page displays the calibration data for all devices. Group RGB Calibration Group Window Item "Gain" and "Offset" «Index Value window Delay Calibration Group «Accelerometer "Voltage" window Calibration" ("Calibration of the accelerometer")
  • Page 57 Machine Translated by Google XJ-A240/A245 (4) Protect Information page This page displays the special information stored in the device. Group Item «Machine Use Group Lamp On Time window Unit Time window Power On Information” Group Count window «Password "On" and "Off" switches "Key" window Information”...
  • Page 58 Machine Translated by Google XJ-A240/A245 9-7. Uploading backup data <Before uploading backup data, connect the COM port in use> (1) Select "Connect COM Port" from the "Communication" menu. The connection dialog box will open. (2) Select the COM port you want to connect from the list and click the "Connect" button.
  • Page 59 Machine Translated by Google XJ-A240/A245 <To upload backup data, follow the steps below> (1) You can upload all the data at once by selecting "Set Information to Projector" in the "Communication" menu. (2) After successfully uploading the data, the following dialog box will appear.
  • Page 60 Machine Translated by Google XJ-A240/A245 9-8. Saving and loading backup data Downloaded backup data can be saved as a file. Saved files can later be opened. Use the [New] (New), [Open] (Open), [Save] (Save) and [Save As] (Save as) items in the [File] menu ( File"). The file has the extension "*.klg".
  • Page 61 Machine Translated by Google XJ-A240/A245 10. ADJUSTMENT When replacing the main PCB (PWB-1 BOARD) or the OPM, perform the indexing delay setting. 10.1 Startup procedure (1) Connect the power cable to the projector and wait for the [POWER] LED to turn yellow. (2) Press the [ (POWER] button on remote control or on the projector to turn on his.
  • Page 62 Machine Translated by Google XJ-A240/A245 10-3. Indexing Delay Setting (1) From the main menu, select "Factory Items" ÿ "Index Delay" indexing"). (2) A 64-gradation RGB pattern and slider will be projected on the screen. <Index Delay Control> (3) Highlight "Min Index Delay" and use the [...
  • Page 63 Machine Translated by Google XJ-A240/A245 11. TROUBLESHOOTING 11-1. Error processing LIGHT-EMITTING DIODE TEMP Description Code Page POWER LAMP (TEMPERATURE) LED does not turn on Does not burn Does not burn Does not burn The device does not enter standby mode...
  • Page 64 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE TEMP Description Code Page POWER LAMP (TEMPERATURE) Flashing yellow Flashing red (interval Does not burn (interval 1 second) 1 second) Heat permanent yellow Does not burn Does not burn Thermostat failure (LSA) Flashing red (0.5...
  • Page 65 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE TEMP Description Code Page POWER LAMP (TEMPERATURE) LD CPU connection error LD CPU EEPROM connection error Lamp On Error Flashing red (0.5 Solid red Flashing red Lamp off error (0.5 second second interval)
  • Page 66 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE TEMP Description Code Page POWER LAMP (TEMPERATURE) ORM connection error Does not burn permanent red permanent red ORM error Does not burn permanent red permanent red Thermistor disconnected Does not burn permanent red...
  • Page 67 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE Description POWER LAMP TEMP Classification Code Possible reasons (TEMPERATURE) (1) KEY-FPC connector is disconnected. (2) Disconnected or pinched cable between PWB-1 board and ACDC module. (3) Pinched cable between PWB-1 board and LSA cover switch. (4) Pinched cable between PWB-1...
  • Page 68 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE POWER LAMP TEMP Description Classification Code Possible reasons (TEMPERATURE) (1) Cable disconnected or pinched between PWB-1 board and LSA cover. Faulty LSA (2) The LSA cover is not closed or is screwed on loosely.
  • Page 69 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE POWER LAMP TEMP Description Classification Code Possible reasons (TEMPERATURE) Flashing red Flashing Does not burn yellow (interval (1) High temperature parts. (2) Parts of (interval 1 1 second) the cooling system (fan, etc.) are installed incorrectly. (3) The...
  • Page 70 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE TEMP Description POWER LAMP Classification Code Possible reasons (TEMPERATURE) eeprom error Faulty pay PWB-1. Flashing red Does not burn Error permanent red (interval 2 connections seconds) EEPROM LIGHT-EMITTING DIODE TEMP LAMP Description POWER...
  • Page 71 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE Description POWER LAMP TEMP Classification Code Possible reasons (TEMPERATURE) (1) Cable disconnected or pinched between PWB-1 board and PWB-7 board. (2) The PWB-1 connection error board is defective (in the area of CN905). (3) The PWB-7 board is defective (in the area of CN101).
  • Page 72 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE POWER LAMP TEMP Description Classification Code Possible reasons (TEMPERATURE) (1) LSB module connector missing (short circuit). (2) The LSB module is defective (short circuit of the solder joint, etc.). (3) Faulty PWB-7 board (in CN402 voltage LED or LED_Driver area).
  • Page 73 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE TEMP Description POWER LAMP Classification Code Possible reasons (TEMPERATURE) Stop error DDP C0 detected SUB C1 (1) The FPC cable of the FW module is disconnected or detected pinched. (2) The FW module is installed incorrectly (influenced...
  • Page 74 Machine Translated by Google XJ-A240/A245 LIGHT-EMITTING DIODE POWER LAMP TEMP Description Classification Code Possible reasons (TEMPERATURE) (1) Disconnection or breakage of the FFC cable for the OPM. connection error (2) Faulty ORM module (wrong soldering, etc.). (3) The PWB-1 board is defective (in the area of CN401).
  • Page 75 Machine Translated by Google CASIO COMPUTER CO.,LTD. Overseas Service Division 6-2, Hon-machi 1-Chome Shibuya-ku, Tokyo 151-8543, Japan...

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Xj-a245